Download NX-300 - SYSCOM

UHF DIGITAL TRANSCEIVER
NX-300
SERVICE MANUAL
© 2007-10 PRINTED IN JAPAN
B51-8811-00 (S) 243
NX-300 K3
NX-300 K
Helical Antenna
(KRA-23:option)
Knob (Selector)
(K29-9408-13)
Knob (Volume)
(K29-9407-03)
Knob (Selector)
(K29-9408-13)
Knob (Volume)
(K29-9407-03)
Badge
(B43-1606-04)
Badge
(B43-1606-04)
Knob (PTT)
(K29-9405-03)
Knob (PTT)
(K29-9405-03)
Packing (6 key)
(G53-1765-11)
MIC
MIC
Plastic cabinet assy
(18 key)
(A02-4003-13)
Packing (18 key)
(G53-1766-11)
Plastic cabinet assy
(6 key)
(A02-4002-13)
1
4
3
2
ABC
5
JKL
8
TUV
DEF
O
6 MN
GHI
7 PQ
Z
9 WXY
RS
#
0
Does not come with antenna. Antenna is available as an option.
CONTENTS
GENERAL ............................................................... 2
SYSTEM SET-UP ................................................... 2
REALIGNMENT ...................................................... 3
DISASSEMBLY FOR REPAIR ................................ 6
CIRCUIT DESCRIPTION ......................................... 9
COMPONENTS DESCRIPTION ........................... 15
PARTS LIST .......................................................... 17
EXPLODED VIEW ................................................. 28
PACKING .............................................................. 29
ADJUSTMENT ..................................................... 30
TERMINAL FUNCTION ........................................ 52
PC BOARD
CONTROL UNIT (X53-4260-XX) .................... 64
TX-RX UNIT (X57-7370-10) ............................ 68
This product complies with the RoHS directive for the European market.
SCHEMATIC DIAGRAM
CONTROL UNIT (X53-4260-XX) .................... 72
TX-RX UNIT (X57-7370-10) ............................ 82
INTERCONNECTION DIAGRAM ......................... 86
BLOCK DIAGRAM ................................................ 88
LEVEL DIAGRAM ................................................. 92
OPTIONAL ACCESSORIES
KNB-47L (Li-ion BATTERY PACK) ................. 93
KNB-48L (Li-ion BATTERY PACK) ................. 93
SPECIFICATIONS .............................. BACK COVER
This product uses Lead Free solder.
NX-300
GENERAL / SYSTEM SET-UP
Document Copyrights
INTRODUCTION
Copyright 2007 by Kenwood Corporation. All rights reserved.
No part of this manual may be reproduced, translated,
distributed, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise,
for any purpose without the prior written permission of
Kenwood.
SCOPE OF THIS MANUAL
This manual is intended for use by experienced technicians
familiar with similar types of commercial grade communications
equipment. It contains all required service information for the
equipment and is current as of the publication date. Changes
which may occur after publication are covered by either Service
Bulletins or Manual Revisions. These are issued as required.
Disclaimer
While every precaution has been taken in the preparation
of this manual, Kenwood assumes no responsibility for errors
or omissions. Neither is any liability assumed for damages
resulting from the use of the information contained herein.
Kenwood reserves the right to make changes to any products
herein at any time for improvement purposes.
ORDERING REPLACEMENT PARTS
Firmware Copyrights
PERSONAL SAFETY
The title to and ownership of copyrights for firmware
embedded in Kenwood product memories are reserved for
Kenwood Corporation. Any modifying, reverse engineering,
copy, reproducing or disclosing on an Internet website of the
firmware is strictly prohibited without prior written consent of
Kenwood Corporation. Furthermore, any reselling, assigning
or transferring of the firmware is also strictly prohibited without embedding the firmware in Kenwood product memories.
The following precautions are recommended for personal safety:
• DO NOT transmit until all RF connectors are verified secure and any open connectors are properly terminated.
• SHUT OFF and DO NOT operate this equipment near electrical blasting caps or in an explosive atmosphere.
• This equipment should be serviced by a qualified technician only.
NXDN Transceivers:
The AMBE+2(TM) voice coding technology is embedded in
the firmware under the license of Digital Voice Systems, Inc.
This transceiver is designed for easy servicing. Refer to
the schematic diagrams, printed circuit board views, and
alignment procedures contained within.
When ordering replacement parts or equipment information, the
full part identification number should be included. This applies to all
parts : components, kits, or chassis. If the part number is not known,
include the chassis or kit number of which it is a part, and a sufficient
description of the required component for proper identification.
SERVICE
SYSTEM SET-UP
Merchandise received
License and frequency allocated by FCC
Choose the type of transceiver
Transceiver programming
Are you using the optional antenna?
RF power
Type
DTMF keypad
TX/RX 450~520
5W
NX-300 K
No
TX/RX 450~520
5W
NX-300 K3
Yes
A personal computer (IBM PC or compatible), programming interface
(KPG-36/36A), USB adapter(KCT-53U), and programming software (KPG-111D)
are required for programming.
(The frequency, and signaling data are programmed for the transceiver.)
YES
NO
Are you using the speaker microphone?
Frequency range (MHz)
KRA-23 or KRA-27
Optional antenna
(Option)
YES
NO
KMC-25
Speaker microphone
(Option)
Are you using the voice guide & storage unit?
NO
Delivery
2
YES
VGS-1
(Option)
NX-300
REALIGNMENT
1. Modes
2. How to Enter Each Mode
User mode
Unprogramming mode
Panel test mode
PC mode
Firmware
programming mode
Panel tuning mode
Data programming mode
PC test mode
PC tuning mode
Mode
User mode
Panel test mode
PC mode
Panel tuning mode
Firmware
programming mode
Clone mode
Firmware version
information
Operation
Power ON
[ ] + Power ON
Received commands from PC
Press the [ ] key, in Panel test mode
[ ] + Power ON
[ ] + Power ON
[Side1] + Power ON
3. Panel Test Mode
Clone mode
Setting method refer to ADJUSTMENT.
Firmware version information
Mode
Function
User mode
For normal use.
Unprogramming mode If you turn the transceiver power ON using
any one of the following conditions, the
transceiver forcibly enters Unprogramming mode.
• FPU data is not written.
• No channel are programmed.
• When using kill.
• The ESN is not written.
Panel test mode
Panel tuning mode
PC mode
Data programming
mode
PC test mode
Firmware
programming mode
Clone mode
Firmware version
information
• Broken hardware has been detected.
Used by the dealer to check the fundamental characteristics.
Used by the dealer to tune the transceiver.
Used for communication between the
transceiver and PC (IBM compatible).
Used to read and write frequency data and
other features to and from the transceiver.
Used to check the transceiver using the PC.
This feature is included in the FPU.
See pages 39 to 51.
Used when changing the main program
of the flash memory.
Used to transfer programming data from
one transceiver to another.
Used to confirm the internal firmware
version.
4. Panel Tuning Mode
Setting method refer to ADJUSTMENT.
5. PC Mode
5-1. Preface
The transceiver is programmed by using a personal computer, programming interface (KPG-36/36A), USB adapter
(KCT-53U) and programming software (KPG-111D).
The programming software can be used with an IBM PC
or compatible. Figure 1 shows the setup of an IBM PC for
programming.
IBM-PC
KPG-36 or KPG-36A or
KPG-36A + KCT-53U
Illustration is KPG-36.
M
KPG-111D
IC
1
4
GH
I
2 ABC
3 DEF
7
PC
PC
PC
D-SUB
(25-pin)
D-SUB
(9-pin)
USB
KCT-53U
KPG-36
KPG-36A
KPG-36A
Transceiver
Transceiver
Transceiver
Fig. 1
3
NX-300
REALIGNMENT
5-2. Connection procedure
6-3. Programming
1. Connect the transceiver to the computer using the interface cable and USB adapter (When the interface cable is
KPG-36A, the KCT-53U can be used.).
1. Start up the firmware programming software (Fpro.exe
(version 4.0 or later))
2. Set the communications speed (normally, 115200 bps)
and communications port in the configuration item.
3. Set the firmware to be updated by File name item.
4. Press and hold the [ ] key while turning the transceiver
power ON. Then, the orange LED on the transceiver lights
and “PROGRAM 115200” is displayed.
5. Check the connection between the transceiver and the
personal computer, and make sure that the transceiver is
in the Program mode.
6. Press “write” button in the window. When the transceiver starts to receive data, the [LOADING] display lights.
7. If writing ends successfully, the checksum is calculated
and a result is displayed.
8. If you want to continue programming other transceivers,
repeat steps 4 to 7.
Notes:
• You must install the KCT-53U driver in the computer to
use the USB adapter (KCT-53U).
• When using the USB adapter (KCT-53U) for the first time,
plug the KCT-53U into a USB port on the computer with
the computer power ON.
2. When the POWER switch on, user mode can be entered
immediately. When PC sends command the transceiver
enter PC mode, and “PROGRAM” is displayed on the LCD.
When data transmitting from transceiver, the red LED is lights.
When data receiving to transceiver, the green LED is lights.
Note:
The data stored in the computer must match the "Model
Name" when it is written into the flash memory.
5-3. KPG-36/KPG-36A description
(PC programming interface cable: Option)
The KPG-36/36A is required to interface the transceiver to
the computer. It has a circuit in its D-sub connector (KPG-36
: 25-pin, KPG-36A : 9-pin) case that converts the RS-232C
logic level to the TTL level.
The KPG-36/36A connects the universal connector of the
transceiver to the RS-232C serial port of the computer.
5-4. KCT-53U description (USB adapter : Option)
The KCT-53U is a cable which connects the KPG-36A to a
USB port on a computer.
When using the KCT-53U, install the supplied CD-ROM
(with driver software) in the computer. The KCT-53U driver
runs under Windows 2000 or XP.
5-5. Programming software KPG-111D description
The KPG-111D is the programming software for the transceiver supplied on a CD-ROM. This software runs under MSWindows 2000 or XP on an IBM-PC or compatible machine.
The data can be input to or read from the transceiver and
edited on the screen. The programmed or edited data can be
printed out. It is also possible to tune the transceiver.
Note:
This mode cannot be entered if the Firmware Programming mode is set to Disable in the Programming software.
6-4. Function
1. If you press the [Side2] key while “PROGRAM 115200” is
displayed, the display changes to “PROGRAM 19200”
(The LED blinks green) to indicate that the write speed is
low speed (19200 bps). If you press the [Side2] key again
while “PROGRAM 19200” is displayed, the display
changes to “PROGRAM 38400” (The LED lights red and
orange alternatively). If you press the [Side2] key again
while “PROGRAM 38400” is displayed, the display
changes to “PROGRAM 57600” (The LED blinks orange).
If you press the [Side2] key again while “PROGRAM
57600” is displayed, the display returns to “PROGRAM
115200” (The LED lights orange).
2. If you press the [Side1] key while “PROGRAM 115200” is
displayed, the checksum is calculated, and a result is displayed. If you press the [Side1] key again while the
checksum is displayed, “PROGRAM 115200” is
redisplayed.
Note:
Normally, write in the high-speed mode.
7. Clone Mode
6. Firmware Programming Mode
6-1. Preface
Flash memory is mounted on the transceiver. This allows
the transceiver to be upgraded when new features are released in the future. (For details on how to obtain the firmware, contact Customer Service.)
6-2. Connection procedure
Connect the transceiver to the personal computer (IBM
PC or compatible) using the interface cable (KPG-36/36A) and
USB adapter (KCT-53U : when the interface cable is KPG36A, the KCT-53U can be used.). (Connection is the same as
in the PC Mode.)
4
Programming data can be transferred from one transceiver
to another by connecting them via their external universal connectors. The operation is as follows (the transmit transceiver is
the source and the receive transceiver is a target).
The following data cannot be cloned.
• Tuning data
• Embedded message with password
• Model name data
• ESN (Electronic Serial Number) data
NX-300
REALIGNMENT
Key guide on the Read authorization password input screen.
• CONFRM ([ ] key):The password confirmation
• DELETE ([ ] key): Delete the least digit from the current
password number (Press and hold to
delete all password numbers)
• SELECT ([ ] key): Determine the least digit of the password number
1. Press and hold the [ ] key while turning the transceiver
power ON. If the Read authorization password is set to
the transceiver, the transceiver displays “CLONE LOCK”.
If the password is not set, the transceiver displays
“CLONE MODE”.
2. When you enter the correct password, and “CLONE
MODE” is displayed, the transceiver can be used as the
cloning source. The following describes how to enter the
password.
3.
• How to enter the password using the keypad (K3
model only);
]/[
] key is pressed while "CLONE LOCK" is
If the [
displayed, the Read authorization password input screen
is displayed.
If one of keys 0 to 9 is pressed while the Read authorization password input screen is displayed, the pressed number is displayed on the LCD.
Each press of the key shifts the display in order to the left.
When you enter the password and press the [ ] or [ ]
key, “CLONE MODE” is displayed if the entered password is correct. If the password is incorrect, “CLONE
LOCK” is redisplayed.
] and [
]
• How to enter the password using the [
keys (K, K3 models);
If the [
]/[
] key is pressed while "CLONE LOCK" is
displayed, the Read authorization password input screen
is displayed.
] key or [
] key is pressed while the Read
If the [
authorization password input screen is displayed, the
number (0 to 9) blinks on the LCD. When you press the
[ ] key, the currently selected number is determined. If
you press the [ ] key after entering the password in this
procedure, “CLONE MODE” is displayed if the entered
password is correct. If the password is incorrect, “CLONE
LOCK” is redisplayed.
4. Power ON the target transceiver.
5. Connect the cloning cable (part No. E30-3325-05) to the
universal connectors on the source and target.
6. Press the [ ] key on the source while the source displays
“CLONE MODE”. The data of the source is sent to the
target. While the target is receiving the data, “PROGRAM” is displayed. When cloning of data is completed,
the source displays “END”, and the target automatically
operates in the User mode. The target can then be operated by the same program as the source.
7. The other target can be continuously cloned. When the
[ ] key on the source is pressed while the source displays
“END”, the source displays “CLONE MODE”. Carry out
the operation in step 4 to 6.
Notes:
• Cannot be cloned if the password (overwrite password) is
programmed to the target.
• “Model Name” must be same to clone the transceiver.
Cloning cable
(E30-3325-05)
M
M
IC
1
4
IC
1
4
GH
I
2 ABC
GH
I
3 DEF
7
2 ABC
3 DEF
7
Fig. 2
8. Firmware Version Information
Press and hold the [Side1] key while turning the transceiver
power ON and then keep pressing and holding the [Side1]
key, the firmware version information appears on the LCD.
*
5
NX-300
DISASSEMBLY FOR REPAIR
1. Precautions for Waterproof
• Do not remove the black sheet from the reverse side of
the transceiver (refer to the illustration right). Removal of
this sheet decreases the waterproof efficiency of the
transceiver and may cause malfunctions if water seeps
into the transceiver.
• The orange packing material on the reverse side of the
transceiver is important with respect to the waterproof
efficiency of the transceiver. Do not place stickers or other
materials on or around the packing material shown in the
figure, or on the reverse side of the battery pack. Doing so
will impair the waterproof efficiency of the transceiver and
may cause it to break down. Additionally, in order to
prevent damage to the packing material, do not allow it to
come in contact with foreign materials.
■ Removing the TOP packing (G53-1762-02)
2. Precautions for Disassembly
■ Removing the TX-RX unit from the chassis
1. Remove the cord ASSY from the connector of the TX-RX
unit (CN900) z.
2. Remove the PTT FPC from the connector of the TX-RX
unit (CN901) x.
3. Remove the 14 screws c.
4. Anchor the screw hole of the TX-RX unit using the tip of a
pair of tweezers as shown in the figure. Then, lift the TXRX unit to remove it from the chassis v.
1. Pull on the TOP packing with your fingers to turn it back as
shown in the figure z.
2. Pull the TOP packing to the left to remove the packing that
is fit into the left groove of the chassis x.
3. Pull the TOP packing to the right to remove the packing
that is fit into the right groove of the chassis c.
4. Remove the TOP packing v.
Cord ASSY
3
CN900
1
CN901
PTT FPC
1
4
2
TX-RX unit
3 3
3
3
3
3
4
3
6
2
NX-300
DISASSEMBLY FOR REPAIR
2. Mount the chassis onto the case x.
3. Precautions for Reassembly
■ Mounting the chassis onto the case
1. Place the key top on the chassis. Then, fit the chassis
tightly into the groove of the key top z.
Note:
Confirm that the entire groove of the key top fits to the
chassis tightly.
Note:
After mounting the chassis onto the case, if the 18 key
part on the key top or the Auxiliary (Orange) key part of the
VOL/CH packing gets stuck inside the case as shown in
the figure, return it to the normal position using a soft
tipped item (e.g., finger) c.
Prying it with a pointed metal tool such as forceps, may
damage the key top or packing.
18 key part
2
Auxiliary
(Orange)
key
3
1
7
NX-300
DISASSEMBLY FOR REPAIR
■ Installing lithium cell (W09-0971-05)
1. Insert a lithium cell into one side of the socket (CN401).
2. Push the lithium cell with your fingers as shown in the
figure to insert the lithium cell into the socket.
■ Forming the VOL/CH FPC, Cord ASSY and
Universal connector FPC
Form the VOL/CH FPC, Cord ASSY and Universal
connector FPC as shown in the figure.
VOL/CH FPC
Control unit
CN401
Universal
Connector FPC
Cord ASSY
■ Affixing the keyboard ASSY (S79-0472-05)
Affix the keyboard ASSY to the Control unit as shown in
the figure.
After affixing the keyboard ASSY to the Control unit,
confirm that the three positioning holes of the keyboard
ASSY and the Control unit are not misaligned.
Keyboard
ASSY
Positioning holes
Control unit
■ Inserting the Volume and Channel switch into
the chassis
Insert the volume and channel switch into the chassis
with the VOL/CH FPC formed as shown in the figure.
VOL/CH FPC
8
■ Changing the channel selector from 16-channel
operation to free
1.
2.
3.
4.
Remove the channel selector knob.
Remove the circular nut.
Remove the mechanical stopper.
Reassemble the circular nut and channel selector knob
that were removed in steps 1 and 2, in their original
positions.
Channel selector knob Circular nut
Mechanical stopper
(K29-9408-13)
(N14-0844-04) (D32-0446-14)
NX-300
CIRCUIT DESCRIPTION
1. Overview
2. Frequency Configuration
The NX-300 is a UHF portable transceiver designed to
operate in the frequency range of 450 to 520MHz. The unit
consists of receiver, transmitter, phase-locked loop (PLL)
frequency synthesizer, base band parts, power supply, and
control circuits.
The receiver is a double-conversion superheterodyne
using the first intermediate frequency (IF) of 58.05MHz and
the second IF of 450kHz. Incoming signals from the antenna
are mixed with the local signal from the PLL circuit to produce the first IF of 58.05MHz. This is then mixed with the
57.6MHz second local oscillator output to produce the
450kHz second IF. The transmit signal frequency is generated by the PLL VCO, and modulated by the signal from the
DSP. It is then amplified and fed to the antenna.
CF
450kHz
ANT
TX/RX:450~520MHz
RF
AMP
SP
MCF
58.05MHz
19.2MHz
VC
TCXO
MIX
IF AMP
x3
57.6MHz
391.95~
461.95MHz
PA
AMP
TX
AMP
PLL
VCO
450~520MHz
Fig. 1
Base band circuit
1st MIX
ANT
SW
AF
AMP
MIC
MIC
AMP
Frequency configuration
3. Receiver System
3-1. RF Circuit
3-2. IF Circuit
An incoming RF signal from the antenna terminal is
passed through the antenna switch (D606, 607, 709 ,711)
and then the bandpass filter (L721, L722). The bandpass filter
is adjusted by a variable capacitor. The input voltage to the
variable capacitor is regulated by the voltage output from the
D/A converter (IC703). The signal is amplified by an RF amplifier (Q705), and passed through the bandpass filter (L713,
714, 715). The resulting signal is applied to the first mixer
(Q703), where it is mixed with the first local oscillator signal
output from the frequency synthesizer to produce the first IF
(58.05MHz).
The first IF signal is passed through a four-pole monolithic
crystal filter (XF700) to reject adjacent channel signals. The
filtered first IF signal is amplified by the first IF amplifier
(Q701) and then applied to the lF system IC (IC701). The IF
system IC provides a second mixer, AGC amplifier, and RSSI
(Received Signal Strength Indicator).
The second mixer mixes the first IF signal with the
57.6MHz of second local oscillator output and produces the
second IF signal of 450kHz.
The second IF signal is passed through the ceramic filter
(CF700) to reject the adjacent channel signal. The filtered
second IF signal is amplified by the AGC amplifier.
The signal from the AGC amplifier is input to the ASIC
(IC108) through the ceramic filter (CF701) and operational
amplifier (IC700 and IC410).
ANT
D606,D607
RF AMP
1st MIX
Q705 L713~L715 Q703
L612~L614 D709,D711 L721,L722
ANT
LPF
BPF
BPF
SW
MCF
XF700
IF AMP
Q701
CF701
IC701
MIX, AGC
BPF
IC700
BPF
2nd OSC
1st PLL OSC (PLL)
X500
VC
TCXO
Q700
x3
BPF
CF700
19.2MHz
IC410
IC704
IC108
ASIC
IC707
SW
IC713
(2/2)
IC703
VOL
IC408
IC409
IC413
INT. SP
SW
IC412
AMT
EXT. SP
INAMT
EXAMT
IC102
DSP
Fig. 2
RF and IF circuit
9
NX-300
CIRCUIT DESCRIPTION
3-3. Audio Amplifier Circuit
Q406
Audio processing (high-pass filter, low-pass filter, de-emphasized and so on) at FM mode and decoding at NXDN
mode are processed by DSP. The audio signal from IC108
and IC102 goes through the amplifier (IC704). The signal then
goes through a mute switch (IC707), amplifier (IC713), electronic volume control (IC703), and AF amplifier (IC408).
While busy, AMT becomes Low to turn IC707 on, and the
signal is fed to the AF switch. While INAMT is High, the AF
switch (IC409) selects the internal speaker, and the audio
signal is fed to the internal audio power amplifier (IC413), and
output to the internal speaker. While EXAMT is High, the AF
switch (IC409) selects the external speaker, and the audio
signal is fed to the external audio power amplifier (IC412),
and output to the external speaker. The power supply for
IC413 and IC412 is turned on while INAMT or EXAMT is High.
The speaker is switched by the logic of the speaker
switching terminal SSW on the universal connector. When
the SP-MIC is not attached, SSW becomes High. IC108 detects the logic of SSW and activates either INAMT or EXAMT.
B
Q407
INAMT
EXAMT
IC409
VDD
IC413
AF signal
from IC408
INT SP
SHUT DOWN
VDD
IC412
EXT SP
SHUT DOWN
Fig. 3
3-4. Squelch Circuit
It amplifies the demodulated noise signal from IC108 after
filtering through the BPF circuit. Then, the amplified signal is
converted to a DC signal by the detection circuit. The converted signal is fed back to IC108.
DET
IC108
Audio amplifier circuit
IC702(1/2) IC711(2/2)
ASQAPC
LPF
HPF
Q704
D705
IC711(1/2)
AMP
RECT
AMP
ASQDET
Fig. 4
Squelch circuit
4. Transmitter System
4-1. Audio Band Circuit
4-2. Base Band Circuit
The signal from the internal microphone goes through the
mute switch (Q5). When the SP-MIC is not attached, the
microphone switching terminal (MSW) on the universal connector becomes High, and the mute switch (Q5) is turned on.
When the SP-MIC is attached, MSW is connected to GND
inside the SP-MIC. For this reason, Q5 is turned off, the internal microphone is muted, and only the input of the external
microphone is supplied to the microphone amplifier. The signal from the microphone goes through the mute switch
(Q707), and is amplified by IC716 (1/2) and limited by the AGC
circuit which is composed of D703, D704, Q705 and Q706.
The audio signal output from the base band circuit is converted to digital data with a sampling frequency of 48 kHz.
This digital data is sent to the DSP (IC102), and voice signals
of 300Hz or lower and frequencies of 3kHz or higher are cut
off and an audio range of 300Hz to 3kHz is extracted. The
audio signal is then pre-emphasized in FM mode and synthesized with the signals, such as QT and DQT, as required, and
is then output from IC108. In Digital mode, the audio signal is
converted to the 4-Level FSK base band signal and output
from IC108. The DTMF and MSK base band signals are also
generated by the DSP and output by IC108.
LPF (IC705) works as a smoothing filter. The DAC (IC703)
assigns the base band signal to the VCO and VCTCXO (X500).
At this time, the level output according to the transmit carrier
is fine-adjusted according to each modulation method.
IC102 DSP
EXT. MIC
INT. MIC
Q5
Q707
IC716
(1/2)
SW
SW
AMP
Q4
MM
AGC
IC712
IC710
(1/2)
IC706
SW
AMP
LPF
IC108
ASIC
IC705
(2/2)
IC705
(1/2)
IC710
(2/2)
LPF
LPF
AMP
SCSW
IC703
IC501
X500
AMP
VCTCXO
AMP
VCO
IC504
MSW
D703,D704
Q705,Q706
Fig. 5
10
Audio band and Base band circuit
NX-300
CIRCUIT DESCRIPTION
4-3. VOX
4-5. APC Circuit
IC716 (2/2) amplifies the audio signal captured in the microphone. The signal is then converted into the DC voltage,
rectified by D706. The DC voltage activates the ASIC (IC108),
and the VOX starts.
The APC circuit always monitors the current flowing
through the RF power amplifier (Q606) and keeps a constant
current. The voltage drop at R642, R645 and R647 is caused
by the current flowing through the RF power amplifier and
this voltage is applied to the differential amplifier (IC600 1/2).
IC600 (2/2) compares the output voltage of IC600 (1/2) with
the reference voltage from IC108, and the output of IC600
(2/2) controls the VGG of Q602, Q603 and Q606 to make the
both voltages the same. The change of power high/low is
carried out by the change of the reference voltage. Q607,
Q608 and Q610 are turned on and Q604 and Q605 are turned
off in transmit and the APC circuit is active.
4-4. Drive and Final Amplifier
The signal from the T/R switch (D601 is on) is amplified by
the drive amplifier (Q601,Q602 and Q603) to 25~27dBm. The
output of the drive amplifier is amplified by the RF power
amplifier (Q606) to 5.0W (1W when the power is low). The
RF power amplifier is MOS FET. The output of the RF power
amplifier is then passed through the harmonic filter (LPF) and
antenna switch (D606, D607 are on) and applied to the
antenna terminal.
ANT
From
T/R SW
(D601)
Q601
Q602
Q603
Q606
D606,D607
Pre
Drive
Drive
AMP
Pre-Final
AMP
Final
AMP
ANT
SW
VDD
+B
LPF
VGG
R642
R645
R647
REF
VOL
(IC108)
IC600
(1/2)
IC600
(2/2)
Fig. 6 Drive and final amplifier and APC circuit
5. PLL Frequency Synthesizer
5-1. VCTCXO (X500)
5-2. VCO
VCTCXO (X500) generates a reference frequency of
19.2MHz for the PLL frequency synthesizer. This reference
frequency is applied to pin 9 of the PLL IC (IC502) and connected to the IF circuit as a 2nd local signal through the
Tripler. The VCTCXO oscillation frequency is determined by
the DC voltage of the VC terminal. The VC voltage is fixed to
1.65V by R500 and R501, and supplied to the VC terminal
through IC501. The modulation signal is also fed to the VC
terminal through IC501
The frequency adjustment is achieved by switching the
ratio of the dividing frequency that is not adjusted by the DC
voltage impressed to the VC. The resolution of the adjusting
frequency is approximately 4Hz.
There is a RX VCO and a TX VCO.
The TX VCO (Q509) generates a transmit carrier and the
RX VCO (Q508) generates a 1st local signal. For the VCO oscillation frequency, the transmit carrier is 450 to 520 MHz and
the 1st local signal is 391.95 to 461.95MHz.
The VCO oscillation frequency is determined by one system of operation switching terminal "T/R" and two systems of
voltage control terminals "C/V" and "V-assist".
The operation switching terminal, "T/R", is controlled by
the control line (/T_R) output from the ASIC (IC108). When
the /T_R logic is low, the VCO outputs the transmit carrier
and when it is high, it outputs a 1st local receive signal.
The voltage control terminals, "CV" and "V-assist", are controlled by the PLL IC (IC502) and ASIC (IC108) and the output
frequency changes continuously according to the applied
voltage. For the modulation input terminal, "VCO_MOD", the
output frequency changes according to the applied voltage.
This is used to modulate the VCO output. "VCO_MOD" works
only when "/T_R" is low.
11
NX-300
CIRCUIT DESCRIPTION
5-3. PLL IC (IC502)
X500
19.2MHz
IC502
VC
TCXO
PLL
IC
The desired frequency is set for the PLL IC by the ASIC
(IC108) through the 3-line "SDO1", "SCK1", "/PCS_RF" serial
bus. Whether the PLL IC is locked or not is monitored by the
ASIC through the “PLD” signal line. If the VCO is not the
desired frequency (unlock), the "PLD" logic is low.
5-4. Local Switch (D600, D601)
The connection destination of the signal output from the
buffer amplifier (Q600) is changed with the diode switch
(D601) that is controlled by the transmission power supply,
50T, and the diode switch (D600) that is controlled by the
receive power supply, 50R. If the 50T logic is high, it is connected to a send-side pre-drive (Q601). If the 50T logic is low,
it is connected to a receive-side mixer (Q703).
Q508,Q509
D506,D507,D510,D511
D514~D517,D519 Q512
Q600
D600,D601
BUFF
AMP
BUFF
AMP
T/R
SW
50C
50T
50R
to 1st Mixer
The PLL IC compares the differences in phases of the
VCO oscillation frequency and the VCTCXO reference
frequency, returns the difference to the VCO CV terminal and
realizes the "Phase Locked Loop" for the return control. This
allows the VCO oscillation frequency to accurately match
(lock) the desired frequency.
When the frequency is controlled by the PLL, the frequency convergence time increases as the frequency difference increases when the set frequency is changed. To
supplement this, the ASIC is used before control by the PLL
IC to bring the VCO oscillation frequency close to the desired
frequency. As a result, the VCO CV voltage does not change
and is always stable at approximately 2.5V.
Loop
Filter
VCO
to TX stage
Q504
SDO1
SCK1
/PCS_RF
CV
BUFF
AMP
VCO_MOD
150C
50C
Q505
IC504(1/2)
Q503
Ripple
Filter
IC503
ASSIST
LPF
Fig. 7
PLL block diagram
6. Control Circuit
The control circuit consists of the ASIC (IC108) and its peripheral circuits. IC108 mainly performs the following;
1) Switching between transmission and reception by PTT
signal input.
2) Reading system, zone, frequency, and program data
from the memory circuit.
3) Sending frequency program data to the PLL.
4) Controlling squelch on/off by the DC voltage from the
squelch circuit.
5) Controlling the audio mute circuit by decode data input.
12
6-1. ASIC
The ASIC (IC108) is a 32-bit RISC processor, equipped
with peripheral function and ADC/DAC.
This ASIC operates at 18.432MHz clock and 3.3V /1.5V
DC. It controls the flash memory, SRAM, DSP, the receive
circuit, the transmitter circuit, the control circuit, and the display circuit and transfers data to or from an external device.
NX-300
CIRCUIT DESCRIPTION
6-2. Memory Circuit
6-6. DSP
The memory circuit consists of the ASIC (IC108) and the
SRAM(IC103) and flash memory (IC101). The flash memory
has capacity of 32M-bit that contains the transceiver control
program for the ASIC and stores the data. It also stores the
data for transceiver channels and operating parameter that
are written by the FPU. This program can be easily written
from external devices. The SRAM has capacity of 1M-bit that
contains work area and data area.
The DSP circuit consists of a DSP (IC102) and processes
the base band signal. The DSP operates on an external clock
of 18.432MHz (the same as the IC108), the I/O section operates at 3.3V and the core section operates at 1.5V. The DSP
carries out the following processes:
• 4 Level FSK processing
• Analog FM pre-emphasis/de-emphasis
• Vocoder processing between audio codec and modulation/demodulation
• CAI processing, such as error correction encoding
• QT/DQT encoding/decoding
• LTR encoding/decoding
• DTMF encoding/decoding
• MSK encoding/decoding
• 2-tone encoding/decoding
• Compressor/expander processing
• Voice scrambler processing
• Transmit/receive audio filtering processing
• Microphone amplifier AGC processing
• Audio mute processing
• Modulation level processing
■ Flash memory
Note: The flash memory stores the data that is written by the
FPU (KPG-111D), tuning data (Deviation, Squelch, etc.) ,and
firmware program (User mode, Test mode, Tuning mode,
etc.). This data must be rewritten when replacing the flash
memory.
■ SRAM (Static memory)
Note: The SRAM has temporary data area and work area.
When the power supply is off, it is backed up by an internal
secondary lithium battery. Therefore, the saved data is not
lost.
■ Real-time clock
The clock function is based on real-time clock IC (IC106).
When the power supply is off, it is backed up by an internal
secondary lithium battery
6-3. LCD
The LCD is controlled using the bus lines on the connector
(CN1) of the Control unit (X53-426). It corrects the LCD contrast voltage using IC1.
6-4. Key Detection Circuit
Keys are detected using the key scan circuit in IC108. The
/KEYI* signals that are normally pulled down go high when
any key is pressed.
6-5. Low Battery Warning
The battery voltage is divided using R444 and R445 and is
detected by the ASIC (IC108). When the battery voltage falls
below the voltage set by the Low battery warning adjustment, the red LED blinks to notify the operator that it is time
to replace the battery. If the battery voltage falls even more
(approx. 5.8V), a beep sounds and transmission stops.
Low battery warning
The red LED blinks during
Battery condition
The battery voltage is low but
transmission.
The red LED blinks and the
the transceiver is still usable.
The battery voltage is low
warning tone beeps while
the PTT switch is pressed.
and the transceiver is not
usable to make calls.
7. Power Supply Circuit
The battery voltage (+B) is provided from the battery
terminal on the TX/RX unit (X57). The battery voltage passes
through the 2.5A fuse (F900), and goes to the RF final amplifier, AVR ICs (IC902, IC903), and Control unit (X53-426).
In the control unit, +B is connected to the DC/DC (IC407),
AVR ICs (IC411, IC708, IC416), and voltage detector IC
(IC414). The voltage detector watches the battery voltage.
If the battery voltage is 5.6V or higher, the detector outputs
High. While the output of IC414 is High, IC416 and Q409
provide 3.1V (31BU) to the backup-section.
When the VOL SW is turned on, SB1 becomes high (battery voltage). The DC/DC (IC407) operates if both SB1 and
the output of the detector are high. IC407 outputs 3.8V and it
activates IC404 (33M), IC405 (15M), and IC406 (33A). As a
result, the ASIC and DSP operate.
The SBC signal becomes High after the ASIC operates,
IC708 (5A), Q403 on the Control unit (SB2) and Q901 on the
TX-RX unit (SB3) are turned on. IC901 and IC903 operate by
turning on these AVR ICs and FET switches.
The 5UC signal becomes High when an option is installed
on the universal connector. Then IC411 (50U) operates.
When the /SAVE signal becomes High, IC902 (50C) operates. The output of IC902 is connected to three FET switches
(Q902, Q903, Q905). When the SBC signal becomes High,
IC903 (33C) operates. The FET switches are controlled by the
CPU. Q905 (50T) is turned on in transmit mode. Q902 (50R)
and Q903 (50IF) are turned on in receive mode.
When the VOL SW is turned off the /PSW signal
becomes Low. After detecting the /PSW signal, the ASIC
changes SBC signal to Low. Then the power supplies except
IC416 (31BU) stop.
13
NX-300
CIRCUIT DESCRIPTION
TX-RX unit (X57)
F900
2.5A
/SAVE
+B
50C
IC902
AVR
/5TC
Q905
50T SW
50T
5RC
Q902
50R SW
50R
IFC
Q903
50IF SW
50IF
SBC
RF Final AMP
APC
IC903
AVR IC
33C
Q901
SB3 SW
SB3
IC901
DC/DC
CN900
VCO
TX circuit
RX circuit
IF circuit
PLL, VCTCXO
TX/Busy LED
150C
Assist, Tune
8. Signaling Circuit
8-1. Encode (QT/DQT/LTR/DTMF/2-tone/MSK)
Each signaling data signal of QT, DQT, LTR, DTMF, 2-tone
and MSK is generated by the DSP circuit, superposed on a
modulation signal and output from IC108. The modulation
balance of the QT/DQT/LTR signal is adjusted by the D/A
converter(IC703) and the resulting signal is routed to the
modulation input of the VCO and VCXO (X500). Each deviation of the TX QT, DQT, LTR, DTMF and MSK tone is adjusted
by changing the output level of IC108 and the resulting signal
is routed to the VCO and VCXO. The RX DTMF tone is routed
to the receive audio signal system, and is output from the
speaker.
8-2. Decode (QT/DQT/LTR/DTMF/2-tone/MSK)
The audio signal is removed from the FM detection signal
sent to the DSP circuit and the resulting signal is decoded.
9. Compander Circuit
Control unit (X53)
CN404
5UC
IC411
AVR IC
50U
SBC
Q403
SB2 SW
SB2
IC708
AVR IC
5A
IC403
DC/DC
-10V
Q409
31BU
31BU
IC404
AVR
33M
IC405
AVR
15M
IC406
AVR
33A
SB1
Q402
Lvl Conv
/PSW
Q408
AND
Q401
Lvl Conv
/BINT
IC416
AVR IC
IC407
DC/DC
IC414
Detect
VOL SW
D408
OR
Fig. 8
14
SBC
D412
OR
Power supply circuit
Universal
BackLight
Key Light
Option
LCD Bias
SRAM, RTC
ASIC, DSP I/O,
Flach, LCD DRV
ASIC, DSP core
ASIC Analog,
Audio
IC108
ASIC
The term “compander” means compressor and expander.
The compander reduces noise by utilizing a compressor and
an expander. The transceiver contains a DSP(IC102) to perform this operation. The transceiver compander can be
turned on or off using the FPU.
NX-300
COMPONENTS DESCRIPTION
Control unit (X53-4260-XX)
Ref. No.
IC1
Part Name
Description
Transistor
SB2 switch
LCD contrast
Q404
FET
SB2 switch control
FET
AF AMP switch
Voltage regulator (AF AMP)
Part Name
IC
Ref. No.
Q403
Description
IC101
IC
FLASH ROM
Q405
IC102
IC
DSP
Q406,407
Transistor
SRAM
Q408,409
Transistor
DC switch
FET
DC switch
IC103
IC
IC104
IC
2 input AND gate
Q410
IC105
IC
Reset
Q411
FET
Level converter
RTC
Q412
FET
DC switch
IC106
IC
IC107
IC
Buffer
Q413~415 Transistor
DC switch
IC108
IC
ASIC
Q701
Transistor
OPT switch
FET
Tone switch
W/N noise switch
IC109
IC
2 input AND gate
Q702
IC401,402
IC
Bus switch
Q703
FET
Voltage doubling inverter
Q704
Transistor
SQL noise AMP
Transistor
MIC AGC
IC403
IC
IC404
IC
Voltage regulator (33M)
Q705,706
IC405
IC
Voltage regulator (15M)
Q707
FET
MIC mute
LED
12key backlight
IC406
IC
Voltage regulator (33A)
D1,2
IC407
IC
DC/DC converter
D3,4
LED
LCD backlight
IC408
IC
AF AMP
D5,6
LED
12key backlight
LED
LCD backlight
12key backlight
IC409
IC
AF switch
D7,8
IC410
IC
IF AMP
D9,10
LED
Voltage regulator (50U)
D11
Diode
LCD backlight switch
Diode
Reverse current prevention
Surge absorption
IC411
IC
IC412,413
IC
Audio AMP
D12~16
IC414
IC
Reset
D17~19
Zener diode
2 input AND gate
D20
Zener diode
PTT RF OPT control
Zener diode
EMC MSW SSW control
IC415
IC
IC416
IC
Voltage regulator
D21
IC417,418
IC
Dual bus buffer
D22
Diode
RXD control
Diode
TXD control
12key backlight switch
IC701
IC
I/O control
D23
IC702
IC
APC LPF
D101
Diode
D/A converter
D102
Diode
12key control
IC703
IC
Reverse current prevention
IC704
IC
RX AF LPF
D401~404 Diode
IC705
IC
Modulation LPF
D405,406
Diode
DC/DC converter
MIC AMP
D407
Diode
Reverse current prevention
Diode
DC/DC converter control
IC706
IC
IC707
IC
RX AF switch
D408
IC708
IC
Voltage regulator (5A)
D409,410
Diode
SP control
Diode
RTC BATT control
IC709
IC
Sidetone mute
D411
IC710
IC
MOD/MIC summing AMP
D412
Diode
DC switch control
Diode
RTC BATT control
IC711
IC
SQL BPF/SQL DC AMP
D413
IC712
IC
MIC switch
D414
Diode
TX LED switch
IC713
IC
1.65V REF/RX summing AMP
D415
Diode
RX LED switch
OPT switch
D416
Diode
33M control
Diode
33A control
IC714
IC
IC715,716
IC
VOX AMP
D417
Q1,2
Transistor
LCD backlight switch
D701
Diode
5A switch
Diode
PLD control
Q3
FET
LCD backlight switch
D702
Q4
FET
MIC shift control
D703,704
Diode
Detector
MIC shift switch
D705
Diode
Noise detector
Diode
Detector
Diode
VOX
Q5
FET
Q101,102
Transistor
12key backlight switch
D706
Q103
FET
12key backlight switch
D707
Q401,402
FET
Level converter
15
NX-300
COMPONENTS DESCRIPTION
TX-RX unit (X57-7370-10)
Ref. No.
16
Part Name
Ref. No.
Description
D506,507,
D510,511
Part Name
Description
Variable
Frequency control
capacitance diode
IC404
IC
OP AMP (RSSI/VAGC)
IC500
IC
Temperature sensor
D514~517 Variable
Frequency control
capacitance diode
IC501
IC
DC AMP for TCXO MOD
D518
Diode
IC502
IC
PLL IC
D519
IC503
IC
DC AMP for VCO tune
Variable
TX modulation
capacitance diode
IC504
IC
OP AMP (VCO MOD/APC)
D600,601
Diode
Ripple filter
Local switch
IC600
IC
Auto power control
D604
Zener diode
APC switch
IC700
IC
Buffer
D605
Zener diode
APC protect
IC701
IC
FM IC
D606,607
Diode
Antenna switch
IC702,703
IC
DC AMP for BPF
D700
Diode
Ripple filter
IC900
IC
50T control
IC901
IC
DC/DC converter
D702~704 Variable
Vari-cap tune
capacitance diode
IC902
IC
Voltage regulator (50C)
D705
Diode
IC903
IC
Voltage regulator (33C)
D706,708
Q503
Transistor
Ripple filter
Variable
Vari-cap tune
capacitance diode
Q504
FET
Buffer AMP
D709
Diode
Q505
Transistor
Buffer AMP
D710
Variable
Vari-cap tune
capacitance diode
RF AGC
Antenna switch
Q507
Transistor
Ripple filter
D711
Diode
Q508,509
FET
VCO oscillation
D900
LED
TX/RX LED
Q510,511
FET
T/R switch
D901
Diode
Reverse protection
Q512,600
Transistor
Buffer AMP
D902
Diode
50T control
Q601
Transistor
RF AMP
Q602
FET
RF AMP
Q603
FET
RF drive AMP
Q604
Transistor
APC switch
Q605
FET
APC switch
Q606
FET
RF final AMP
Q607
Transistor
APC switch
Q608
FET
APC switch
Q610
Transistor
APC switch
Q700
Transistor
2nd Local buffer AMP
Q701
Transistor
IF AMP
Q703
FET
Mixer
Q704
Transistor
Ripple filter
Q705
FET
RF AMP
Q706
FET
RF AGC
Q900
Transistor
TX/RX LED switch
Q901
FET
SB3 switch
Q902
FET
50R switch
Q903
FET
50IF switch
Q904
FET
DC/DC converter switch
Q905
Transistor
50T switch
D501
Diode
Ripple filter
D505
Diode
Bypass diode
Antenna switch
NX-300
PARTS LIST
indicates safety critical components.
∗ New Parts.
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
L: Scandinavia
Y: PX (Far East, Hawaii)
Y: AAFES (Europe)
K: USA
T: England
X: Australia
P: Canada
E: Europe
M: Other Areas
NX-300 (Y50-6120-XX)
CONTROL UNIT (X53-4260-XX)
New
Ref. No. Address parts
Parts No.
Description
Destination
NX-300
1
2
3
4
5
1B
1A
2B
1B
1A
∗
∗
∗
∗
∗
A02-4002-13
A02-4003-13
A62-1156-02
B09-0712-03
B11-1853-24
PLASTIC CABINET(6KEY)
PLASTIC CABINET(18KEY)
PANEL(TOP)
CAP
ACCESSORY
FILTER(LCD)
6
7
8
9
10
1A
3B
1A
1A
1B
∗
∗
∗
∗
∗
B11-1854-02
B11-1855-04
B38-0923-05
B42-7296-04
B43-1606-04
ILLUMINATION GUIDE(LCD)
ILLUMINATION GUIDE(TX/BUSY)
LCD ASSY
STICKER
BADGE
11
12
14
15
16
2D
2B
3A
2A
3B
∗
∗
∗
∗
∗
B62-2014-00
D32-0446-14
E29-1221-04
E29-1220-04
E58-0532-05
INSTRUCTION MANUAL
STOPPER(16CH)
RELAY HARDWARE(VCO-CHASSIS)
RELAY HARDWARE(VCO-PCB)
RECTANGULAR RECEPTACLE(SP/MIC)
17
18
19
20
21
3B
3A
2A
1A
2B
∗
∗
∗
∗
∗
E72-0425-03
F07-1931-04
G02-1836-13
G10-1373-04
G10-1384-04
TERMINAL BLOCK
COVER(OP BOARD)
EARTH SPRING(SP)
FIBROUS SHEET(SP)
FIBROUS SHEET(TOP PANEL)
23
24
25
26
27
2A
3A
3A
3A
3A
∗
∗
∗
G11-4272-14
G11-4331-04
G11-4428-04
G11-4429-04
G11-4440-04
RUBBER CUSHION(SP)
SHEET(AIR)
SHEET(PTT)
RUBBER SHEET(FET)
SHEET(AIR)
29
30
31
33
34
2A
2A
2A
2A
3B
∗
∗
∗
∗
G11-4458-14
G11-4459-04
G13-2129-14
G13-2258-04
G53-1762-02
SHEET(SP)
SHEET(TX-RX PCB)
CUSHION(TX-RX PCB)
CUSHION(50PIN FPC)
PACKING(TOP)
35
36
37
38
39
3B
3A
1B
1A
2B
∗
∗
∗
∗
∗
G53-1763-03
G53-1764-03
G53-1765-11
G53-1766-11
G53-1768-04
PACKING(TERMINAL BLOCK)
PACKING(OP BOARD)
PACKING(6KEY)
PACKING(18KEY)
PACKING(VOL,CH O-RING)
40
41
42
43
44
1B
2B
2A
2B
2A
∗
G53-1769-04
G53-1792-04
J19-5505-11
J19-5506-03
J19-5507-02
PACKING(CAP)
PACKING(SMA O-RING)
HOLDER(FG-SP)
HOLDER(VOL,CH)
HOLDER(OP BOARD)
45
46
47
48
49
2B
1C
2B
2B
3B
∗
∗
∗
∗
J21-8579-04
J29-0730-05
J30-1296-04
J87-0006-05
J87-0007-05
MOUNTING HARDWARE(FG-SP HOLDER)
BELT CLIP
ACCESSORY
SPACER(VOL)
FPC(LEAD FREE/VOL,CH)
FPC(LEAD FREE/UNIVERSAL)
50
52
53
54
55
2B
3A
2B
1A
3B
∗
∗
∗
∗
J99-0390-04
J99-0711-04
J99-0712-14
J99-0714-04
J99-0715-08
ADHESIVE SHEET(6KEY FPC)
ADHESIVE SHEET(PTT FPC)
ADHESIVE SHEET(6KEY FPC)
ADHESIVE SHEET(LCD)
ADHESIVE SHEET(UNIVERSAL)
56
57
58
3B
3A
1A
∗
∗
∗
J99-0725-04
K25-2001-03
K29-9405-03
ADHESIVE SHEET(TERMINAL BLOCK)
PUSH KNOB(PTT)
KNOB(PTT)
∗
∗
∗
K
K3
New
Ref. No. Address parts
Parts No.
Description
59
60
1A
1B
∗
∗
K29-9406-03
K29-9407-03
BUTTON KNOB(SIDE KEY)
KNOB(VOL)
61
1B
∗
K29-9408-13
KNOB(CH)
A
B
C
D
E
1B,1D
3B
3A
2A,2B
2B,3A
∗
∗
∗
N08-0564-04
N09-2426-14
N09-2440-15
N09-6549-04
N09-6554-05
DRESSED SCREW
ACCESSORY
HEXAGON HEAD SCREW(BATT -)
SPECIAL SCREW(CASE)
STEPPED SCREW(FG-SP HOLDER)
PAN HEAD SCREW(ANT/OP BOARD)
F
G
H
2B
∗
1C
1A,2A,2B
N14-0844-04
N30-3008-60
N83-2005-48
CIRCULAR NUT(VOL,CH)
PAN HEAD MACHINE SCREW(BELT CLIP)
PAN HEAD TAPTITE SCREW(PCB)
64
65
66
1A
2A
2A
∗
S79-0472-05
T07-0755-15
T91-0575-05
KEYBOARD ASSY(12KEY)
SPEAKER
MIC ELEMENT
67
68
69
70
72
2A
3A
2B
2A
2B
W09-0971-05
X41-3710-10
X41-3720-10
X42-3340-10
X60-3860-10
LITHIUM CELL
SWITCH UNIT(PTT FPC)
SWITCH UNIT(6KEY FPC)
CORD ASSY(50PIN FPC)
TERMINAL ASSY(SMA)
∗
∗
∗
∗
Destination
K3
CONTROL UNIT (X53-4260-XX) -10 :K -11 :K3
K
K3
D1 -10
D3 ,4
D7 ,8
B30-2215-05
B30-2215-05
B30-2215-05
LED
LED
LED
K3
K
K
C1
C2 -6
C7 ,8
C10
C11
CK73HB1A104K
CK73GB1E105K
CK73HB1A104K
CK73HB1A104K
CK73HB0J105K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
0.10UF
1.0UF
0.10UF
0.10UF
1.0UF
K
K
K
K
K
C12 -15
C16 ,17
C23 -27
C28 -34
C35
CK73HB1H471K
CC73HCH1H101J
CK73HB1H102K
CC73HCH1H101J
CK73HB1H102K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
470PF
100PF
1000PF
100PF
1000PF
K
J
K
J
K
C36
C37
C38
C40
C41
CK73HB1E682K
CK73HB1H102K
CC73HCH1H101J
CC73HCH1H221J
CC73HCH1H101J
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
6800PF
1000PF
100PF
220PF
100PF
K
K
J
J
J
C101-104
C105
C106
C107
C107,108
CK73HB1A104K
CK73HB0J105K
CK73HB1E103K
CK73HB1A104K
CK73HB1A104K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
0.10UF
1.0UF
0.010UF
0.10UF
0.10UF
K
K
K
K
K
C109,110
C111-113
C114
C115
C116,117
CK73HB1H102K
CK73HB1A104K
CK73HB0J105K
CK73HB1H471K
CK73HB1A104K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
1000PF
0.10UF
1.0UF
470PF
0.10UF
K
K
K
K
K
C118,119
C120,121
C122-124
C130
CK73HB0J105K
CK73HB1A104K
CK73HB1E103K
CK73HB1E103K
CHIP C
CHIP C
CHIP C
CHIP C
1.0UF
0.10UF
0.010UF
0.010UF
K
K
K
K
K
K3
K3
K3
17
NX-300
PARTS LIST
CONTROL UNIT (X53-4260-XX)
New
Ref. No. Address parts
Parts No.
Description
C131
CK73HB1A104K
CHIP C
0.10UF K
C133
C134
C135
C136
C137
CS77CP0J100M
CK73HB1E103K
CK73HB1H102K
CK73HB1E103K
CK73GB1E105K
CHIP TNTL
CHIP C
CHIP C
CHIP C
CHIP C
10UF
0.010UF
1000PF
0.010UF
1.0UF
6.3WV
K
K
K
K
C138-140
C141
C142
C143
C144
CK73HB1A104K
CC73HCH1H101J
CS77CP0J100M
CK73HB1E103K
CK73GB1E105K
CHIP C
CHIP C
CHIP TNTL
CHIP C
CHIP C
0.10UF
100PF
10UF
0.010UF
1.0UF
K
J
6.3WV
K
K
C145-148
C149
C150
C151-155
C156,157
CK73HB1A104K
CK73HB1E103K
CK73GB1E105K
CK73HB1A104K
CK73HB1H102K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
0.10UF
0.010UF
1.0UF
0.10UF
1000PF
K
K
K
K
K
C158
C159
C160,161
C401,402
C403-405
CK73HB1E103K
CK73HB1A104K
CK73HB1E682K
CK73HB1A104K
CS77AP1C2R2M
CHIP C
CHIP C
CHIP C
CHIP C
CHIP TNTL
0.010UF
0.10UF
6800PF
0.10UF
2.2UF
K
K
K
K
16WV
C406
C407,408
C409-412
C413
C414
CK73HB0J105K
CK73HB1H102K
CK73HB0J105K
CK73FB1A106K
CK73HB0J105K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
1.0UF
1000PF
1.0UF
10UF
1.0UF
K
K
K
K
K
CS77AP1A100M
CK73FB1A106K
CC73HCH1H221J
CK73HB1E103K
CK73FB1E475K
CHIP TNTL
CHIP C
CHIP C
CHIP C
CHIP C
10UF
10UF
220PF
0.010UF
4.7UF
10WV
K
J
K
K
C420
C421
C422
C424,425
C427
CK73HB1E103K
CK73HB1E682K
CC73HCH1H100C
CK73HB1A104K
CK73HB1E103K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
0.010UF
6800PF
10PF
0.10UF
0.010UF
K
K
C
K
K
C428
C429,430
C431
C432
C433
CC73HCH1H030C
CK73HB1A104K
CK73FB1A106K
CK73HB1E103K
CK73FB1A106K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
3.0PF
0.10UF
10UF
0.010UF
10UF
C
K
K
K
K
C434
C435-438
C439,440
C441
C442
CK73HB1E103K
CK73HB1A224K
CK73HB1A104K
CK73GB1E105K
CK73HB1H471K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
0.010UF
0.22UF
0.10UF
1.0UF
470PF
K
K
K
K
K
C443,444
C445
C446
C447
C448-450
CK73HB1E103K
CK73HB1H102K
CK73GB1E105K
CK73HB1H102K
CK73HB0J105K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
0.010UF
1000PF
1.0UF
1000PF
1.0UF
K
K
K
K
K
C451-453
C454
C455-457
C459
C460
CK73HB1E103K
CK73GB1E105K
CK73HB1H471K
CK73HB1H471K
CK73HB1E682K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
0.010UF
1.0UF
470PF
470PF
6800PF
K
K
K
K
K
C461-463
C464
C465
CK73HB1H471K
CK73HB1E103K
CK73HB1H102K
CHIP C
CHIP C
CHIP C
470PF K
0.010UF K
1000PF K
C415
C416
C417
C418
C419
18
∗
∗
∗
∗
∗
Destination
New
Ref. No. Address parts
Parts No.
Description
C466
C467,468
CK73HB1E682K
CK73HB1E103K
CHIP C
CHIP C
6800PF K
0.010UF K
C469,470
C701
C703
C704,705
C706
CK73HB1H102K
CK73HB1A104K
CK73GB0J475K
CK73HB1A104K
CC73HCH1H680J
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
1000PF
0.10UF
4.7UF
0.10UF
68PF
K
K
K
K
J
C707
C708
C709
C710
C711
CC73HCH1H270J
CK73HB1A104K
CK73HB0J105K
CK73HB1E103K
CK73HB1A104K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
27PF
0.10UF
1.0UF
0.010UF
0.10UF
J
K
K
K
K
C712
C713
C714
C715
C716
CK73HB1E103K
CK73HB1H332K
CK73HB1H122K
CK73HB1A104K
CK73HB1H681K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
0.010UF
3300PF
1200PF
0.10UF
680PF
K
K
K
K
K
C717
C718
C719
C720
C721
CK73HB1E103K
CK73HB1H152K
CK73HB1A104K
CK73HB1E103K
CK73HB1A104K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
0.010UF
1500PF
0.10UF
0.010UF
0.10UF
K
K
K
K
K
C722
C723
C724
C725
C726,727
CK73HB1E103K
CK73HB1A104K
CK73HB1E103K
CC73HCH1E181J
CK73HB1A104K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
0.010UF
0.10UF
0.010UF
180PF
0.10UF
K
K
K
J
K
C728
C730
C731,732
C734
C735
CK73HB1H331K
CK73HB1H331K
CK73HB1E103K
CK73HB1H102K
CK73HB1H122K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
330PF
330PF
0.010UF
1000PF
1200PF
K
K
K
K
K
C736,737
C738
C739
C740
C742
CK73HB1A104K
CK73HB1H102K
CK73HB1E682K
CK73HB1H102K
CK73GB1E105K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
0.10UF
1000PF
6800PF
1000PF
1.0UF
K
K
K
K
K
C743
C744-746
C747,748
C749,750
C751
CK73HB0J105K
CK73HB1E103K
CK73HB1A104K
CC73HCH1H470J
CK73GB1E105K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
1.0UF
0.010UF
0.10UF
47PF
1.0UF
K
K
K
J
K
C752,753
C755
C756
C757,758
C759,760
CC73HCH1H101J
CC73HCH1H470J
CK73HB1A104K
CK73GB0J475K
CK73HB1E103K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
100PF
47PF
0.10UF
4.7UF
0.010UF
J
J
K
K
K
C761
C762
C763
C764
C765-767
CC73HCH1H100D
CK73HB1A104K
CK73HB1E103K
CK73HB1H102K
CK73HB1A104K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
10PF
0.10UF
0.010UF
1000PF
0.10UF
D
K
K
K
K
C768
C771
C772
C775
C777
CK73HB1H102K
CK73HB1A224K
CK73HB1E103K
CC73HCH1H470J
CK73HB1H102K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
1000PF
0.22UF
0.010UF
47PF
1000PF
K
K
K
J
K
C778
C779
CK73HB0J105K
CK73HB1E103K
CHIP C
CHIP C
1.0UF K
0.010UF K
Destination
NX-300
PARTS LIST
CONTROL UNIT (X53-4260-XX)
Ref. No.
New
Address parts
Parts No.
Description
Destination
C780
C781,782
C785
CK73HB1A224K
CK73HB0J105K
CK73HB1A224K
CHIP C
CHIP C
CHIP C
0.22UF K
1.0UF K
0.22UF K
C786
C787
C788
C789
C790
CK73HB1E103K
CK73HB0J105K
CC73HCH1H150J
CC73HCH1H680J
CK73HB1A104K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
0.010UF
1.0UF
15PF
68PF
0.10UF
K
K
J
J
K
C791
C792
C793,794
C795
C796
CK73HB1A393K
CK73HB0J105K
CK73HB1A104K
CK73HB1E103K
CK73HB1A104K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
0.039UF
1.0UF
0.10UF
0.010UF
0.10UF
K
K
K
K
K
C797
C798
C799
C800
C801
CK73HB0J105K
CS77AP1A100M
CK73HB1A104K
CK73HB1H152K
CK73HB1C223K
CHIP C
CHIP TNTL
CHIP C
CHIP C
CHIP C
1.0UF
10UF
0.10UF
1500PF
0.022UF
K
10WV
K
K
K
C802
C803
C804
CK73HB1E103K
CK73HB1H102K
CC73HCH1H470J
CHIP C
CHIP C
CHIP C
0.010UF K
1000PF K
47PF
J
CN1
CN22
CN23
CN24
CN403
∗
∗
∗
∗
∗
E40-6755-05
E23-1325-05
E40-6758-05
E23-1325-05
E40-6813-05
FLAT CABLE CONNECTOR
TERMINAL
PIN ASSY
TERMINAL
PIN ASSY
CN404
CN405
CN701
CN710
∗
∗
E40-6421-15
E40-6754-05
E40-6586-05
E40-6757-05
PIN ASSY
FLAT CABLE CONNECTOR
SOCKET FOR PIN ASSY
PIN ASSY
F701
F53-0360-05
FUSE(0.25A)
CN401
J19-5386-05
HOLDER(LITHIUM CELL)
L1 ,2
L3
L4 -7
L8
L101,102
L92-0408-05
L92-0140-05
L92-0408-05
L92-0140-05
L92-0408-05
CHIP FERRITE
CHIP FERRITE
CHIP FERRITE
CHIP FERRITE
CHIP FERRITE
L33-1496-05
L92-0467-05
L92-0466-05
L92-0467-05
L92-0140-05
SMALL FIXED INDUCTOR
CHIP FERRITE
CHIP FERRITE
CHIP FERRITE
CHIP FERRITE
L92-0162-05
L92-0162-05
L92-0444-05
L92-0163-05
L92-0444-05
BEADS CORE
BEADS CORE
CHIP FERRITE
BEADS CORE
CHIP FERRITE
L77-1802-05
L77-3015-05
CRYSTAL RESONATOR(32768HZ)
TCXO(18.432MHZ)
R1
R2
R3
R4 -10
R11
RK73HB1J105J
RK73HB1J104J
RK73HB1J123J
RK73HB1J103J
RK73HB1J104J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
1.0M
100K
12K
10K
100K
J
J
J
J
J
R12
R14
R15
RK73HB1J103J
RK73HB1J472J
RK73HB1J000J
CHIP R
CHIP R
CHIP R
10K
4.7K
0.0
J 1/16W
J 1/16W
J 1/16W
L401
L402
L403
L409,410
L701
∗
∗
∗
L702
L704-709
L710-712
L713
L714-717
X101
X102
∗
1/16W
1/16W
1/16W
1/16W
1/16W
Ref. No.
New
Address parts
Parts No.
Description
Destination
R16
R17
RK73HB1J331J
RK73HB1J000J
CHIP R
CHIP R
330
0.0
J 1/16W
J 1/16W
R18
R19
R20
R21
R22 -24
RK73HB1J822J
RK73HB1J471J
RK73HB1J102J
RK73HB1J122J
RK73HB1J102J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
8.2K
470
1.0K
1.2K
1.0K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R25
R26
R27
R28 ,29
R30
RK73HB1J122J
RK73HB1J102J
RK73HB1J104J
RK73HB1J102J
RK73HB1J101J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
1.2K
1.0K
100K
1.0K
100
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R31
R32 -35
R40
R101,102
R103
RK73HB1J102J
RK73HB1J101J
RK73HB1J000J
RK73HB1J474J
RK73HB1J102J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
1.0K
100
0.0
470K
1.0K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R105
R106
R107
R108
R110,111
RK73HB1J104J
RK73HB1J472J
RK73HB1J104J
RK73HB1J474J
RK73HB1J104J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
100K
4.7K
100K
470K
100K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R112
R113
R114
R115
R116
RK73HB1J000J
RK73HB1J104J
RK73HB1J331J
RK73HB1J104J
RK73HB1J473J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
0.0
100K
330
100K
47K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
K3
R117
R118
R119
R120
R121-123
RK73HB1J000J
RK73HB1J473J
RK73HB1J104J
RK73HB1J474J
RK73HB1J104J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
0.0
47K
100K
470K
100K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
K3
R126
R127,128
R129-131
R132,133
R135-137
RK73HB1J101J
RK73HB1J000J
RK73HB1J101J
RK73HB1J104J
RK73HB1J104J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
100
0.0
100
100K
100K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R138
R139
R140
R141-143
R144
RK73HB1J473J
RK73HB1J104J
RK73HB1J000J
RK73HB1J104J
RK73HB1J471J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
47K
100K
0.0
100K
470
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R145-147
R148
R149
R150
R153,154
RK73HB1J104J
RK73HB1J151J
RK73HB1J000J
RK73HB1J102J
RK73HB1J104J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
100K
150
0.0
1.0K
100K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R155
R156,157
R158,159
R160,161
R162
RK73HB1J473J
RK73HB1J472J
RK73HB1J220J
RK73HB1J000J
RK73HB1J474J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
47K
4.7K
22
0.0
470K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R163
R165
R166
R167
R168
RK73HH1J104D
RK73HB1J102J
RK73HB1J104J
RK73HB1J102J
RK73HB1J000J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
100K
1.0K
100K
1.0K
0.0
D
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R170
R171-173
RK73HH1J103D
RK73HB1J000J
CHIP R
CHIP R
10K
0.0
D 1/16W
J 1/16W
K3
K3
K3
19
NX-300
PARTS LIST
CONTROL UNIT (X53-4260-XX)
New
Ref. No. Address parts
Parts No.
Description
Destination
New
Ref. No. Address parts
Parts No.
Description
Destination
R174-178
R180,181
R182
RK73HB1J104J
RK73HB1J104J
RK73HB1J474J
CHIP R
CHIP R
CHIP R
100K
100K
470K
J 1/16W
J 1/16W
J 1/16W
R471
R472
R473
RK73HB1J000J
RK73HB1J223J
RK73HB1J332J
CHIP R
CHIP R
CHIP R
0.0
22K
3.3K
J 1/16W
J 1/16W
J 1/16W
R183
R184
R185
R186
R187
RK73HB1J104J
RK73HB1J473J
RK73HB1J105J
RK73HB1J473J
RK73HB1J102J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
100K
47K
1.0M
47K
1.0K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R474,475
R477,478
R479
R480
R481
RK73HB1J333J
RK73HB1J000J
RK73HB1J102J
RK73HB1J273J
RK73HB1J474J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
33K
0.0
1.0K
27K
470K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R188
R189
R190
R191
R192
RK73HB1J473J
RK73HB1J104J
RK73HB1J102J
RK73HB1J474J
RK73HB1J102J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
47K
100K
1.0K
470K
1.0K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R482
R483
R484
R485
R486
RK73HB1J103J
RK73HB1J473J
RK73HB1J223J
RK73HB1J103J
RK73HB1J100J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
10K
47K
22K
10K
10
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R193,194
R401
R402
R403
R404
RK73HB1J104J
RK73HB1J152J
RK73HB1J151J
RK73HB1J152J
RK73HB1J151J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
100K
1.5K
150
1.5K
150
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R487-490
R491
R492
R493
R494-497
RK73HH1J223D
RK73HB1J104J
RK73HB1J474J
RK73HB1J000J
RK73HH1J104D
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
22K
100K
470K
0.0
100K
D
J
J
J
D
1/16W
1/16W
1/16W
1/16W
1/16W
R405
R406
R407,408
R409
R410-416
RK73HB1J152J
RK73HB1J000J
RK73HB1J103J
RK73HB1J470J
RK73HB1J471J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
1.5K
0.0
10K
47
470
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R498
R499
R500
R501
R502,503
RK73HB1J333J
RK73HB1J223J
RK73HB1J473J
RK73HB1J222J
RK73HB1J103J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
33K
22K
47K
2.2K
10K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R417
R418
R419,420
R424
R425
RK73HB1J000J
RK73HB1J471J
RK73HB1J000J
RK73HH1J683D
RK73HH1J333D
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
0.0
470
0.0
68K
33K
J
J
J
D
D
1/16W
1/16W
1/16W
1/16W
1/16W
R504
R506
R507-511
R512
R513-515
RK73HB1J102J
RK73HB1J222J
RK73HB1J102J
RK73HB1J101J
RK73HB1J102J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
1.0K
2.2K
1.0K
100
1.0K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R426-429
R431
R432,433
R434
R435,436
RK73HB1J000J
RK73HB1J474J
RK73HB1J000J
RK73HB1J393J
RK73HB1J104J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
0.0
470K
0.0
39K
100K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R516
R517
R518
R519-528
R529-531
RK73HB1J101J
RK73HB1J102J
RK73HB1J101J
RK73HB1J102J
RK73HB1J101J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
100
1.0K
100
1.0K
100
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R437
R438,439
R440
R441
R442
RK73HB1J471J
RK73HB1J104J
RK73HB1J000J
RK73HB1J153J
RK73HB1J102J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
470
100K
0.0
15K
1.0K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R532
R533-535
R536-540
R541
R542
RK73HB1J102J
RK73HB1J101J
RK73HB1J102J
RK73HB1J101J
RK73HB1J102J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
1.0K
100
1.0K
100
1.0K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R443
R444
R445
R446
R447
RK73HB1J474J
RK73HB1J564J
RK73HB1J154J
RK73HB1J274J
RK73HB1J104J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
470K
560K
150K
270K
100K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R543
R544
R545
R546,547
R548,549
RK73HB1J101J
RK73HB1J102J
RK73HB1J101J
RK73HB1J102J
RK73HB1J473J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
100
1.0K
100
1.0K
47K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R448
R449-452
R453
R454
R455
RK73HB1J103J
RK73HB1J474J
RK73HB1J104J
RK73HB1J474J
RK73HB1J102J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
10K
470K
100K
470K
1.0K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R701-707
R709-715
R716
R717-722
R723
RK73HB1J000J
RK73HB1J000J
RK73GB2A000J
RK73HB1J104J
RK73HB1J105J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
0.0
0.0
0.0
100K
1.0M
J
J
J
J
J
1/16W
1/16W
1/10W
1/16W
1/16W
R456
R457,458
R459,460
R461
R462
RK73HB1J474J
RK73HB1J104J
RK73HB1J102J
RK73HB1J103J
RK73HB1J102J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
470K
100K
1.0K
10K
1.0K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R724
R725
R726
R727-729
R730
RK73HB1J104J
RK73HB1J100J
RK73HB1J104J
RK73HB1J105J
RK73HB1J471J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
100K
10
100K
1.0M
470
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R463
R464
R465,466
R467
R468
R469
R470
RK73HB1J104J
RK73HB1J474J
RK73HB1J103J
RK73HB1J104J
RK73HB1J000J
RK73HB1J474J
RK73HB1J683J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
100K
470K
10K
100K
0.0
470K
68K
J
J
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
1/16W
1/16W
R731,732
R733
R735
R736
R737
R738
R739
RK73HB1J105J
RK73HB1J473J
RK73HB1J473J
RK73HB1J823J
RK73HB1J153J
RK73HB1J563J
RK73HB1J823J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
1.0M
47K
47K
82K
15K
56K
82K
J
J
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
1/16W
1/16W
20
K3
K3
K3
NX-300
PARTS LIST
CONTROL UNIT (X53-4260-XX)
Ref. No.
New
Address parts
Parts No.
Description
Destination
Ref. No.
New
Address parts
Parts No.
Description
Destination
R740
R741
R742,743
RK73HB1J000J
RK73HB1J474J
RK73HB1J103J
CHIP R
CHIP R
CHIP R
0.0
470K
10K
J 1/16W
J 1/16W
J 1/16W
R813
R814
R815
RK73HB1J273J
RK73HB1J564J
RK73HB1J104J
CHIP R
CHIP R
CHIP R
27K
560K
100K
J 1/16W
J 1/16W
J 1/16W
R744
R745
R746
R747
R748
RK73HB1J223J
RK73HB1J682J
RK73HB1J563J
RK73HB1J333J
RK73HB1J103J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
22K
6.8K
56K
33K
10K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R816
R818
R819,820
R821
R822,823
RK73HB1J683J
RK73HB1J104J
RK73HB1J103J
RK73HB1J104J
RK73HB1J103J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
68K
100K
10K
100K
10K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R749
R750
R751
R752
R753
RK73HB1J472J
RK73HB1J103J
RK73HB1J000J
RK73HB1J101J
RK73HB1J683J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
4.7K
10K
0.0
100
68K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R824
R825
R826
R827
R828,829
RK73HB1J393J
RK73HB1J104J
RK73HB1J334J
RK73HB1J184J
RK73HB1J000J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
39K
100K
330K
180K
0.0
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R754
R755
R756
R757
R758
RK73HB1J564J
RK73HB1J104J
RK73HB1J101J
RK73HB1J223J
RK73HB1J103J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
560K
100K
100
22K
10K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R830
R831
R832
R833
R834
RK73HB1J105J
RK73HB1J474J
RK73HB1J473J
RK73HB1J684J
RK73HB1J000J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
1.0M
470K
47K
680K
0.0
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R759
R761-764
R765
R766
R767
RK73HB1J101J
RK73HB1J223J
RK73HB1J334J
RK73HB1J000J
RK73HB1J103J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
100
22K
330K
0.0
10K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R835
R836
R837
R838
R839
RK73HB1J153J
RK73HB1J473J
RK73HB1J683J
RK73HB1J564J
RK73HB1J333J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
15K
47K
68K
560K
33K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R768
R769,770
R771
R775
R777
RK73HB1J224J
RK73HB1J334J
RK73HB1J153J
RK73HB1J183J
RK73HB1J473J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
220K
330K
15K
18K
47K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R840
R841
R842
R843
R844
RK73HB1J123J
RK73HB1J564J
RK73HB1J104J
RK73HB1J102J
RK73HB1J472J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
12K
560K
100K
1.0K
4.7K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R778
R779
R780
R782
R783
RK73HB1J333J
RK73HB1J473J
RK73HB1J104J
RK73HB1J104J
RK73HB1J183J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
33K
47K
100K
100K
18K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R845
R846
R847
R848
R849,850
RK73HB1J104J
RK73HB1J471J
RK73HB1J182J
RK73HB1J000J
RK73HB1J000J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
100K
470
1.8K
0.0
0.0
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R784
R785
R786
R787
R788
RK73HB1J104J
RK73HB1J682J
RK73HB1J000J
RK73HB1J124J
RK73HB1J473J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
100K
6.8K
0.0
120K
47K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R850
R851,852
RK73HB1J000J
RK73HB1J683J
CHIP R
CHIP R
0.0
68K
J 1/16W
J 1/16W
R31-0666-05
S60-0437-05
VARIABLE RESISTOR(VOL)
ROTARY SWITCH(CH)
R789
R790
R791
R793
R794
RK73HB1J154J
RK73HB1J102J
RK73HB1J474J
RK73HB1J102J
RK73HB1J104J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
150K
1.0K
470K
1.0K
100K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
D11
D12 -16
D17
D18 ,19
D20 ,21
MA2S111-F
1SS416
EMZ6.8N
HZC6.8-E
NNCD6.8G-A
DIODE
DIODE
ZENER DIODE
ZENER DIODE
ZENER DIODE
R795
R796
R797
R798
R799
RK73HB1J000J
RK73HB1J333J
RK73HB1J102J
RK73HB1J104J
RK73HB1J334J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
0.0
33K
1.0K
100K
330K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
D22 ,23
D101
D102
D401-405
D406
DA221
MA2S111-F
1SS416
1SS388F
HRB0502A
DIODE
DIODE
DIODE
DIODE
DIODE
R800
R801
R802
R803
R804
RK73HB1J474J
RK73HB1J473J
RK73HB1J474J
RK73HB1J103J
RK73HB1J000J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
470K
47K
470K
10K
0.0
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
D407
D408
D409,410
D411
D412
MA2S111-F
1SS301F
MA2S111-F
1SS416
1SS301F
DIODE
DIODE
DIODE
DIODE
DIODE
R805,806
R807
R808
R809
R810
R811
R812
RK73HB1J473J
RK73HB1J102J
RK73HB1J471J
RK73HB1J334J
RK73HB1J332J
RK73HB1J823J
RK73HB1J562J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
47K
1.0K
470
330K
3.3K
82K
5.6K
J
J
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
1/16W
1/16W
D413
D414,415
D416,417
D701
D702
1SS388F
1SS416
1SS388F
1SS301F
MA2S111-F
DIODE
DIODE
DIODE
DIODE
DIODE
RB706F-40
DIODE
VR1
S1
D703-706
2B
2B
∗
∗
∗
∗
∗
∗
∗
If a part reference number is listed in a shaded box, that part does not come with the PCB.
K
K3
K
K3
21
NX-300
PARTS LIST
CONTROL UNIT (X53-4260-XX)
TX-RX UNIT (X57-7370-10)
New
Ref. No. Address parts
D707
IC1
IC101
IC102
IC103
IC104
Parts No.
Description
DA221
LMC7101BIM5
Note 1
Note 1
Note 1
TC7SH08FU-F
DIODE
MOS-IC
ROM IC
MICROPROCESSOR IC
SRAM IC
MOS-IC
XC6109C29ANN
RV5C386A
SM5023CNDH-G
Note 1
TC7SH08FU-F
ANALOGUE IC
MOS-IC
MOS-IC
MOS-IC
MOS-IC
TC74LCX245FK
TC7WZ245FK-F
LM2682MMX
XC6204B332M
XC6205B152PRN
MOS-IC
MOS-IC
MOS-IC
MOS-IC
ANALOGUE IC
XC6204B332M
LT1616ES6-PBF
TC75S51FE(F)
TC7W66FK-F
MCP6021-E/OT
MOS-IC
ANALOGUE IC
MOS-IC
MOS-IC
MOS-IC
NJM2880U105ZB
TPA6201A1DRBR
XC61CC5602NR
TC7SET08FU-F
S-812C31BPI-G
ANALOGUE IC
ANALOGUE IC
MOS-IC
MOS-IC
ANALOGUE IC
TC7WH126FK
TC7WT125FUF
Note 1
TC75W51FK(F)
M62364FP-F
MOS-IC
MOS-IC
MOS-IC
MOS-IC
MOS-IC
IC704
IC705
IC706
IC707
IC708
TC75S51FE(F)
TC75W51FK(F)
TC75S51FE(F)
TC7W53FK(F)
XC6204B502PR
MOS-IC
MOS-IC
MOS-IC
MOS-IC
MOS-IC
IC709
IC710,711
IC712
IC713
IC714
TC7W53FK(F)
TC75W51FK(F)
TC7S66FUF
TC75W51FK(F)
TC7W53FK(F)
MOS-IC
MOS-IC
MOS-IC
MOS-IC
MOS-IC
IC715
IC716
TC75S51FE(F)
TC75W51FK(F)
MOS-IC
MOS-IC
IC105
IC106
IC107
IC108
IC109
∗
IC401
IC402
IC403
IC404
IC405
∗
∗
∗
IC406
IC407
IC408
IC409
IC410
∗
∗
∗
∗
IC411
IC412,413
IC414
IC415
IC416
∗
∗
IC417
IC418
IC701
IC702
IC703
∗
∗
Q1
Q2
Q3 ,4
Q5
Q101
2SA1362-F(GR)
2SC4617(S)
SSM3K15TE(F)
2SJ347F
2SA1832(GR)F
TRANSISTOR
TRANSISTOR
FET
FET
TRANSISTOR
Q102
Q103
Q401,402
Q403
Q404
2SC4617(S)
SSM3K15TE(F)
SSM6N16FE-F
2SA1955A-F
SSM3K15TE(F)
TRANSISTOR
FET
FET
TRANSISTOR
FET
SSM6N16FE-F
2SB1132(Q,R)
UMG3N
EMD12
2SA1955A-F
FET
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
SSM3K15TE(F)
FET
Q405
Q406
Q407
Q408
Q409
Q410
22
∗
∗
∗
Destination
New
Ref. No. Address parts
Q411
Q412
Q413
Q414,415
∗
Parts No.
Description
SSM6N16FE-F
SSM3K15TE(F)
2SA1955A-F
EMD12
FET
FET
TRANSISTOR
TRANSISTOR
Q701
Q702,703
Q704
Q705
Q706
2SA1832(GR)F
SSM3K15TE(F)
2SC4617(S)
2SC4738(GR)F
2SA1832(GR)F
TRANSISTOR
FET
TRANSISTOR
TRANSISTOR
TRANSISTOR
Q707
2SJ243-A
FET
TH1
TH701
ERTJ0EV104H
ERTJ0EV104H
THERMISTOR
THERMISTOR
∗
Destination
TX-RX UNIT (X57-7370-10)
D900
B30-2278-05
LED(RED/YELLOW)
C500
C501
C502
C503
C504
CK73HB1A104K
CC73HCH1H101J
CK73HB1H471K
CK73HB1A104K
CK73HB1C103K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
0.10UF
100PF
470PF
0.10UF
0.010UF
K
J
K
K
K
C505
C506
C508
C509
C511
CC73HCH1H101J
CC73HCH1H100C
CK73HB1C103K
CC73HCH1H100C
CK73FB0J106K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
100PF
10PF
0.010UF
10PF
10UF
J
C
K
C
K
C512
C513
C514-516
C517-519
C520
CK73HB1C103K
CC73HCH1H101J
CK73HB1C103K
CC73HCH1H101J
CK73GB1E105K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
0.010UF
100PF
0.010UF
100PF
1.0UF
K
J
K
J
K
C521
C522
C523,524
C525
C526
CC73HCH1H101J
CK73HB1A104K
CC73HCH1H101J
CC73HCH1H470J
CK73HB1A104K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
100PF
0.10UF
100PF
47PF
0.10UF
J
K
J
J
K
C527-529
C533
C534
C535
C536
CC73HCH1H101J
CK73HB1H471K
CC73HCH1H101J
CS77AA1VR15M
CC73HCH1H470J
CHIP C
CHIP C
CHIP C
CHIP TNTL
CHIP C
100PF
470PF
100PF
0.15UF
47PF
J
K
J
35WV
J
CC73HCH1H050B
CS77BA1D100M
C92-0863-05
C93-0787-05
CC73HCH1H030B
CHIP C
CHIP TNTL
CHIP TNTL
CERAMIC
CHIP C
5.0PF
10UF
0.047UF
0.1UF
3.0PF
B
20WV
35WV
50WV
B
C546
C547,548
C550
C553
C554
CK73HB1H472K
CC73HCH1H101J
CC73HCH1H050B
CC73HCH1H100B
CC73HCH1H470J
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
4700PF
100PF
5.0PF
10PF
47PF
K
J
B
B
J
C555
C556-559
C562
C565
C566
CK73HB0J105K
CK73HB1H471K
CK73HB0J105K
CC73HCH1H270J
CC73HCH1H560J
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
1.0UF
470PF
1.0UF
27PF
56PF
K
K
K
J
J
C567,568
C570
C571
CC73HCH1H0R5B
CC73HCH1HR75B
CC73HCH1H040B
CHIP C
CHIP C
CHIP C
0.5PF
0.75PF
4.0PF
B
B
B
C537
C539
C541
C542
C543
K3
K3
K3
∗
Note 1 : This part cannot be replaced. Therefore, this part is not supplied as a service part.
NX-300
PARTS LIST
TX-RX UNIT (X57-7370-10)
Ref. No.
New
Address parts
Parts No.
Description
C572
C573
CK73FB0J106K
CC73HCH1H050B
CHIP C
CHIP C
10UF
5.0PF
K
B
C574
C575,576
C577
C578
C579
CC73HCH1H020B
CC73HCH1H050B
CK73HB1H471K
CK73GB0J475K
CC73HCH1H040B
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
2.0PF
5.0PF
470PF
4.7UF
4.0PF
B
B
K
K
B
C580
C581
C582
C583
C584,585
CK73HB1H471K
CC73HCH1H0R5B
CK73HB1H471K
CC73HCH1H0R5B
CK73HB1H471K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
470PF
0.5PF
470PF
0.5PF
470PF
K
B
K
B
K
C586
C587
C588
C600
C601
CC73HCH1H070B
CK73HB1H471K
CC73HCH1H100B
CK73HB1A104K
CC73HCH1H101J
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
7.0PF
470PF
10PF
0.10UF
100PF
B
K
B
K
J
C602
C603
C604,605
C607
C610-612
CK73HB1A104K
CC73HCH1H100B
CK73HB1H471K
CC73HCH1H070B
CK73HB1H471K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
0.10UF
10PF
470PF
7.0PF
470PF
K
B
K
B
K
C613
C614,615
C617,618
C619
C621
CC73HCH1H070B
CK73HB1H471K
CK73HB1H471K
CK73HB1A104K
CC73HCH1H150J
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
7.0PF
470PF
470PF
0.10UF
15PF
B
K
K
K
J
C622
C623
C625
C626
C627
CK73HB1H471K
CC73HCH1H150J
CK73HB1H471K
CK73HB1A104K
CC73HCH1H100B
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
470PF
15PF
470PF
0.10UF
10PF
K
J
K
K
B
C628
C629
C630
C631
C632
CC73HCH1H100C
CK73HB1H471K
CK73GB1E105K
CS77AA1A6R8M
CK73HB1H471K
CHIP C
CHIP C
CHIP C
CHIP TNTL
CHIP C
10PF
470PF
1.0UF
6.8UF
470PF
C
K
K
10WV
K
C634-637
C639
C640
C641
C642,643
CK73HB1H471K
CC73HCH1H390J
CC73HCH1H470J
CC73HCH1H100C
CC73HCH1H151J
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
470PF
39PF
47PF
10PF
150PF
K
J
J
C
J
C645
C646
C647
C648,649
C650
CK73GB1C104K
CK73GB1E105K
C93-0941-05
CK73HB1C103K
C93-0937-05
CHIP C
CHIP C
CERAMIC
CHIP C
CERAMIC
0.10UF
1.0UF
18PF
0.010UF
12PF
K
K
50WV
K
50WV
C651
C652
C653
C654
C660
CK73HB1H471K
C93-0951-05
CK73HB1H471K
C93-0987-05
CC73GCH1H101J
CHIP C
CERAMIC
CHIP C
CERAMIC
CHIP C
470PF
47PF
470PF
7.5PF
100PF
K
50WV
K
50WV
J
C661
C662
C663
C664
C665
CK73HB1H471K
CC73GCH1H010B
CC73GCH1H101J
CC73GCH1H040B
CC73GCH1H020B
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
470PF
1.0PF
100PF
4.0PF
2.0PF
K
B
J
B
B
C666
C667
CC73GCH1H050B
CC73GCH1H1R5B
CHIP C
CHIP C
5.0PF
1.5PF
B
B
∗
Destination
Ref. No.
New
Address parts
Parts No.
Description
C668
C669
C670
CC73GCH1H080B
CC73GCH1H040B
CK73HB1H471K
CHIP C
CHIP C
CHIP C
8.0PF
4.0PF
470PF
B
B
K
C671
C672
C689-691
C700
C701
CC73HCH1H070B
CK73HB1H471K
CK73HB1A104K
CC73HCH1H070B
CK73HB1C103K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
7.0PF
470PF
0.10UF
7.0PF
0.010UF
B
K
K
B
K
C703
C704
C706
C707
C708
CK73HB1A104K
CC73HCH1H470J
CC73HCH1H100B
CC73HCH1H680J
CC73HCH1H101J
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
0.10UF
47PF
10PF
68PF
100PF
K
J
B
J
J
C709-711
C712
C713
C715
C717
CK73HB1A104K
CC73HCH1H680J
CK73FB1A106K
CK73HB1C103K
CK73HB1C103K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
0.10UF
68PF
10UF
0.010UF
0.010UF
K
J
K
K
K
CK73HB1A104K
CK73FB1A106K
CC73HCH1H100B
CK73HB1A104K
CC73HCH1H470G
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
0.10UF
10UF
10PF
0.10UF
47PF
K
K
B
K
G
C723,724
C725
C727,728
C729
C730
CK73HB1A104K
CK73HB1C103K
CK73HB1A104K
CK73FB1E474K
CK73HB1C103K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
0.10UF
0.010UF
0.10UF
0.47UF
0.010UF
K
K
K
K
K
C732
C733,734
C735
C736
C737
CK73HB1H471K
CK73HB1C103K
CC73HCH1H470G
CK73HB1C103K
CC73HCH1H020B
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
470PF
0.010UF
47PF
0.010UF
2.0PF
K
K
G
K
B
C738
C739
C740,741
C742
C743
CC73HCH1H220G
CC73HCH1H060B
CK73HB1C103K
CK73FB1A475K
CK73HB1C103K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
22PF
6.0PF
0.010UF
4.7UF
0.010UF
G
B
K
K
K
C744,745
C746
C747
C748
C749
CK73HB1H471K
CC73HCH1H090B
CC73HCH1H100B
CK73HB1H471K
CC73HCH1H020B
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
470PF
9.0PF
10PF
470PF
2.0PF
K
B
B
K
B
C750
C751
C752
C753
C754
CK73HB1C103K
CC73HCH1H100B
CK73HB1H471K
CC73HCH1H020B
CC73HCH1H030B
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
0.010UF
10PF
470PF
2.0PF
3.0PF
K
B
K
B
B
C755
C756
C758
C759,760
C761
CC73HCH1H040B
CC73HCH1H090B
CK73HB1H471K
CK73HB1A104K
CK73GB1E105K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
4.0PF
9.0PF
470PF
0.10UF
1.0UF
B
B
K
K
K
C764
C765
C766
C767
C768
CC73HCH1H1R5B
CK73HB1H471K
CK73GB1H104K
CC73HCH1H090B
CC73HCH1H010B
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
1.5PF
470PF
0.10UF
9.0PF
1.0PF
B
K
K
B
B
C769
CK73HB1H471K
CHIP C
470PF
K
C718
C719
C720
C721
C722
∗
∗
Destination
23
NX-300
PARTS LIST
TX-RX UNIT (X57-7370-10)
New
Ref. No. Address parts
Parts No.
Description
TERMINAL
SOCKET FOR PIN ASSY
SOCKET FOR PIN ASSY
FLAT CABLE CONNECTOR
TERMINAL
F53-0324-05
FUSE
L72-1017-05
L72-1020-05
CERAMIC FILTER
CERAMIC FILTER
L500
L503
L504
L508,509
L513
L41-4795-39
L92-0163-05
L40-1275-92
L40-2285-92
L40-1878-92
SMALL FIXED INDUCTOR(4.7U/2520
BEADS CORE
SMALL FIXED INDUCTOR(12NH/1608
SMALL FIXED INDUCTOR(220NH/160
SMALL FIXED INDUCTOR(18NH/1608
B
B
K
B
K
L514-519
L520
L521
L522
L523
L40-2285-92
L40-1878-67
L40-2278-67
L40-2285-92
L92-0446-05
SMALL FIXED INDUCTOR(220NH/160
SMALL FIXED INDUCTOR(18NH/8)
SMALL FIXED INDUCTOR(22NH/8)
SMALL FIXED INDUCTOR(220NH/160
BEADS CORE
4.0PF
9.0PF
5.0PF
18PF
2.0PF
B
B
B
J
B
L524-526
L527
L528
L598,599
L600
L40-2285-92
L92-0446-05
L40-2775-71
L92-0163-05
L40-2275-92
SMALL FIXED INDUCTOR(220NH/160
BEADS CORE
SMALL FIXED INDUCTOR(27NH/1005
BEADS CORE
SMALL FIXED INDUCTOR(22NH/1608
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
9.0PF
470PF
100PF
1000PF
470PF
B
K
J
K
K
L602
L603
L604
L605
L606
L40-1875-92
L40-1575-92
L92-0138-05
L40-6865-92
L41-1875-43
SMALL FIXED INDUCTOR(18NH/1608
SMALL FIXED INDUCTOR(15NH/1608
CHIP FERRITE
SMALL FIXED INDUCTOR(6.8NH/160
SMALL FIXED INDUCTOR(18NH/2015
CK73GB1H471K
CC73HCH1H470J
CC73HCH1H470J
CC73HCH1H470J
CC73HCH1H470J
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
470PF
47PF
47PF
47PF
47PF
K
J
J
J
J
L607
L609
L610
L611
L612-614
L92-0149-05
L34-4575-05
L92-0149-05
L41-2285-43
L34-4564-05
CHIP FERRITE
AIR-CORE COIL
CHIP FERRITE
SMALL FIXED INDUCTOR(220NH/201
AIR-CORE COIL
CC73HCH1H470J
CK73HB1H471K
CC73HCH1H470J
CK73HB1H471K
CK73GB1E105K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
47PF
470PF
47PF
470PF
1.0UF
J
K
J
K
K
L615
L701
L703
L704
L705,706
L40-1575-57
L40-5681-86
L41-4778-45
L40-1891-86
L92-0138-05
SMALL FIXED INDUCTOR(15.0N/5%/
SMALL FIXED INDUCTOR(0.56UH/16
SMALL FIXED INDUCTOR(47NH/1608
SMALL FIXED INDUCTOR(1.8U/1608
CHIP FERRITE
C92-0765-05
CK73GB1C224K
CK73HB1H102K
CK73HB1A104K
CK73GB1C224K
CHIP-TAN
CHIP C
CHIP C
CHIP C
CHIP C
4.7UF
0.22UF
1000PF
0.10UF
0.22UF
16WV
K
K
K
K
L707
L708
L709,710
L711
L713-715
L41-2785-39
L41-5685-39
L40-1875-92
L40-2275-92
L41-8268-14
SMALL FIXED INDUCTOR(0.27U/252
SMALL FIXED INDUCTOR(0.56U/252
SMALL FIXED INDUCTOR(18NH/1608
SMALL FIXED INDUCTOR(22NH/1608
SMALL FIXED INDUCTOR(8.2NH/201
CK73HB1H102K
CK73GB1E105K
CK73HB1H471K
CC73HCH1E181J
CK73GB1E105K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
1000PF
1.0UF
470PF
180PF
1.0UF
K
K
K
J
K
L716
L717
L720
L721,722
L723
L92-0138-05
L41-2285-14
L40-1075-92
L41-8268-14
L34-4564-05
CHIP FERRITE
SMALL FIXED INDUCTOR(220NH/201
SMALL FIXED INDUCTOR(10NH/1608
SMALL FIXED INDUCTOR(8.2NH/201
AIR-CORE COIL
CK73GB1C224K
CC73HCH1H220J
CK73HB1H471K
CK73GB1C224K
CK73GB1E105K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
0.22UF
22PF
470PF
0.22UF
1.0UF
K
J
K
K
K
L725
L726
L780
L900
L901
L40-8265-92
L41-3378-03
L40-1085-57
L92-0149-05
L33-1462-05
SMALL FIXED INDUCTOR(8.2NH/160
SMALL FIXED INDUCTOR(33N/2P/16
SMALL FIXED INDUCTOR(100N/5%/1
CHIP FERRITE
SMALL FIXED INDUCTOR
4.0PF
470PF
9.0PF
1.0PF
B
K
B
B
C774
C775
C776
C777,778
C779
CC73HCH1H030B
CK73HB1H471K
CC73HCH1H090B
CK73HB1H471K
CK73HB1C103K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
3.0PF
470PF
9.0PF
470PF
0.010UF
B
K
B
K
K
C780
C782
C783
C784-786
C788
CK73GB1H104K
CC73HCH1H0R5B
CK73GB1E105K
CK73HB1H471K
CK73GB1H104K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
0.10UF
0.5PF
1.0UF
470PF
0.10UF
K
B
K
K
K
C789
C790
C791
C792
C794,795
CK73HB1H471K
CK73HB1A104K
CK73HB1H471K
CK73HB1A104K
CK73HB1H471K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
470PF
0.10UF
470PF
0.10UF
470PF
K
K
K
K
K
C796
C798
C799
C800
C801
CC73HCH1H090B
CC73HCH1H1R5B
CK73HB1H471K
CC73HCH1H020B
CK73HB1H471K
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
9.0PF
1.5PF
470PF
2.0PF
470PF
C802,803
C804
C807
C809
C810
CC73HCH1H040B
CC73HCH1H090B
CC73HCH1H050B
CC73GCH1H180J
CC73HCH1H020B
CHIP C
CHIP C
CHIP C
CHIP C
CHIP C
C811
C849
C850
C900
C901,902
CC73HCH1H090B
CK73HB1H471K
CC73HCH1H101J
CK73GB1H102K
CK73HB1H471K
C903
C904-908
C910
C912-920
C922,923
C925-943
C944
C945,946
C947
C948,949
∗
C955,956
C957,958
C961
C962
C963
C964,965
C966
C967
C968
C969
24
∗
∗
Description
E23-1326-05
E40-6358-05
E40-6422-15
E40-6752-05
E23-1326-05
CHIP C
CHIP C
CHIP C
CHIP C
C970,971
C972-974
C975
C976
C977
Parts No.
CHIP C
CHIP C
CERAMIC
CHIP C
CHIP C
CC73HCH1H040B
CK73HB1H471K
CC73HCH1H090B
CC73HCH1H010B
∗
New
Ref. No. Address parts
CK73HB1H102K
CK73GB1E105K
C93-0987-05
CC73HCH1H470J
CK73HB1A474K
C770
C771
C772
C773
C950
C951
C952
C953
C954
Destination
CN600
CN737
CN900
CN901
CN902
∗
∗
∗
∗
∗
∗
F900
CF700
CF701
∗
∗
1000PF
1.0UF
7.5PF
47PF
0.47UF
K
K
50WV
J
K
Destination
NX-300
PARTS LIST
TX-RX UNIT (X57-7370-10)
Ref. No.
X500
XF700
New
Address parts
∗
∗
Parts No.
Description
Destination
L77-3016-05
L71-0640-05
TCXO
MCF
(19.2M/4P/12)
(58.05MHZ/16)
R430
R431,432
R500,501
R502
R503
RK73GB2A000J
RK73HB1J000J
RN73HH1J104D
RK73HB1J124J
RK73HB1J100J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
0.0
0.0
100K
120K
10
J
J
D
J
J
1/10W
1/16W
1/16W
1/16W
1/16W
R504
R505
R506
R511-514
R515
RK73HB1J104J
RK73HB1J000J
RK73HB1J473J
RK73HB1J100J
RK73HB1J472J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
100K
0.0
47K
10
4.7K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R519
R520
R521,522
R523
R527
RK73HB1J100J
RK73HB1J102J
RK73HB1J100J
RK73HB1J102J
RK73HB1J000J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
10
1.0K
10
1.0K
0.0
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R529
R530
R531
R532
R533
RK73HB1J102J
RK73HB1J473J
RK73HB1J683J
RK73HB1J000J
RK73HH1J184D
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
1.0K
47K
68K
0.0
180K
J
J
J
J
D
1/16W
1/16W
1/16W
1/16W
1/16W
R534
R535
R536
R537
R538
RK73HH1J473D
RK73HB1J151J
RK73HB1J000J
RK73HB1J102J
RK73HH1J391D
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
47K
150
0.0
1.0K
390
D
J
J
J
D
1/16W
1/16W
1/16W
1/16W
1/16W
R539
R541
R542-545
R546
R547
RK73HB1J106J
RK73HB1J103J
RK73HB1J000J
RK73HB1J104J
RK73HB1J000J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
10M
10K
0.0
100K
0.0
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R548
R549
R550
R552
R554,555
RK73HB1J104J
RK73HB1J271J
RK73HB1J154J
RK73HB1J274J
RK73HB1J473J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
100K
270
150K
270K
47K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R557
R558
R559
R560
R561
RK73HB1J152J
RK73HB1J474J
RK73HH1J181D
RK73HB1J220J
RK73HH1J181D
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
1.5K
470K
180
22
180
J
J
D
J
D
1/16W
1/16W
1/16W
1/16W
1/16W
R562
R563
R564
R565
R566
RK73HB1J102J
RK73HB1J473J
RK73HB1J154J
RK73HB1J101J
RK73HH1J474D
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
1.0K
47K
150K
100
470K
J
J
J
J
D
1/16W
1/16W
1/16W
1/16W
1/16W
R567
R568
R570,571
R572
R574-576
RK73HB1J472J
RK73HB1J474J
RK73HB1J000J
RK73HB1J100J
RK73HB1J000J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
4.7K
470K
0.0
10
0.0
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R599
R600
R601
R602
R603
RK73HB1J104J
RK73HB1J102J
RK73HB1J183J
RK73HB1J124J
RK73HB1J222J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
100K
1.0K
18K
120K
2.2K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R604
R605
RK73HB1J682J
RK73HB1J103J
CHIP R
CHIP R
6.8K
10K
J 1/16W
J 1/16W
∗
∗
∗
Ref. No.
New
Address parts
Parts No.
Description
Destination
R606
R607
R608
RK73HB1J331J
RK73HB1J222J
RK73HB1J470J
CHIP R
CHIP R
CHIP R
330
2.2K
47
J 1/16W
J 1/16W
J 1/16W
R609
R610
R612
R616
R617
RK73HB1J000J
RK73HB1J472J
RK73HB1J472J
RK73HB1J181J
RK73HB1J331J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
0.0
4.7K
4.7K
180
330
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R618
R620
R622
R623
R624
RK73HB1J220J
RK73HB1J000J
RK73HB1J101J
RK73HB1J103J
RK73HB1J473J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
22
0.0
100
10K
47K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R626
R627,628
R629
R630
R631
RK73HB1J121J
RK73HB1J000J
RK73HB1J273J
RK73HB1J333J
RK73HB1J470J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
120
0.0
27K
33K
47
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R632
R633
R634
R635
R636
RK73HB1J103J
RK73HB1J101J
RK73HB1J000J
RK73HB1J561J
RK73HB1J221J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
10K
100
0.0
560
220
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R639
R641
R642
R644
R645
RK73HB1J103J
RK73HB1J103J
RK73EB2ER39K
RK73HB1J470J
RK73EB2ER39K
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
10K
10K
0.39
47
0.39
J
J
K
J
K
1/16W
1/16W
1/4W
1/16W
1/4W
R646
R647
R648,649
R650
R651-654
RK73HB1J333J
RK73EB2ER39K
RK73HH1J154D
RK73GB2A000J
RK73HH1J274D
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
33K
0.39
150K
0.0
270K
J
K
D
J
D
1/16W
1/4W
1/16W
1/10W
1/16W
R655
R656
R657
R658
R659
RK73HB1J103J
RK73HB1J563J
RK73HB1J000J
RK73HB1J182J
RK73HB1J474J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
10K
56K
0.0
1.8K
470K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R660
R661
R663
R664
R665,666
RK73HB1J473J
RK73HB1J104J
RK73FB2B000J
RK73HB1J000J
RK73HB1J271J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
47K
100K
0.0
0.0
270
J
J
J
J
J
1/16W
1/16W
1/8W
1/16W
1/16W
R667
R669
R670
R701
R702
RK73EB2E823J
RK73HB1J471J
RK73HB1J224J
RK73HB1J561J
RK73HB1J334J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
82K
470
220K
560
330K
J
J
J
J
J
1/4W
1/16W
1/16W
1/16W
1/16W
R703
R704
R705
R709
R710
RK73HB1J100J
RK73HB1J102J
RK73HB1J000J
RK73HB1J103J
RK73HB1J000J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
10
1.0K
0.0
10K
0.0
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R712
R714
R717
R718
R719
RK73HB1J103J
RK73HB1J100J
RK73HB1J473J
RK73HB1J183J
RK73HB1J274J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
10K
10
47K
18K
270K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R720
RK73HB1J222J
CHIP R
2.2K
J 1/16W
25
NX-300
PARTS LIST
TX-RX UNIT (X57-7370-10)
New
Ref. No. Address parts
Parts No.
Description
Destination
R721
R722
R724
R725
RK73HB1J103J
RK73HB1J472J
RK73HB1J104J
RK73HB1J223J
CHIP R
CHIP R
CHIP R
CHIP R
10K
4.7K
100K
22K
J
J
J
J
1/16W
1/16W
1/16W
1/16W
R726
R727
R728
R730
R731
RK73HB1J183J
RK73HB1J222J
RK73HB1J221J
RK73HB1J000J
RK73HB1J103J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
18K
2.2K
220
0.0
10K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R733
R735
R736
R737
R738
RK73HB1J564J
RK73HB1J101J
RK73HB1J104J
RK73HB1J221J
RK73HB1J272J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
560K
100
100K
220
2.7K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R739
R740
R742
R743
R744
RK73HB1J221J
RK73HB1J470J
RK73HB1J472J
RK73HB1J681J
RK73HB1J221J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
220
47
4.7K
680
220
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R745
R746
R747
R748
R749
RK73HB1J102J
RK73HB1J104J
RK73HB1J154J
RK73HB1J104J
RK73HB1J184J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
1.0K
100K
150K
100K
180K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R750
R752,753
R755
R757
R758
RK73GB2A000J
RK73HB1J000J
RK73HB1J472J
RK73HB1J104J
RK73HB1J103J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
0.0
0.0
4.7K
100K
10K
J
J
J
J
J
1/10W
1/16W
1/16W
1/16W
1/16W
R759,760
R761
R762
R763
R764
RK73HB1J104J
RK73HB1J101J
RK73HB1J103J
RK73HB1J824J
RK73HB1J104J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
100K
100
10K
820K
100K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R765
R768
R769
R770
R771
RK73HB1J000J
RK73HB1J000J
RK73HB1J103J
RK73HB1J680J
RK73HB1J181J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
0.0
0.0
10K
68
180
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R772
R773
R774,775
R777
R778
RK73HB1J000J
RK73HB1J824J
RK73HB1J104J
RK73HB1J103J
RK73HB1J104J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
0.0
820K
100K
10K
100K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R779
R780
R781
R783
R784
RK73HB1J683J
RK73HB1J000J
RK73HB1J182J
RK73HB1J224J
RK73HB1J474J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
68K
0.0
1.8K
220K
470K
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R785
R786
R788
R790
R791
RK73HB1J104J
RK73HB1J000J
RK73HB1J104J
RK73HB1J104J
RK73HB1J000J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
100K
0.0
100K
100K
0.0
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
R792
R794,795
R796
R797
R798
RK73HB1J104J
RK73HB1J103J
RK73HB1J000J
RK73HB1J473J
RK73HB1J470J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
100K
10K
0.0
47K
47
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
New
Ref. No. Address parts
Description
Destination
RK73HB1J000J
RK73HB1J391J
RK73GB2A000J
RK73HB1J100J
RK73HB1J821J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
0.0
390
0.0
10
820
J
J
J
J
J
1/16W
1/16W
1/10W
1/16W
1/16W
R904
R905
R906
R907
R908
RK73HB1J000J
RK73HB1J330J
RK73HB1J474J
RK73GB2A100J
RK73HB1J473J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
0.0
33
470K
10
47K
J
J
J
J
J
1/16W
1/16W
1/16W
1/10W
1/16W
R909
R910-912
R913
R914
R915-917
RK73GB2A000J
RK73HB1J474J
RK73HB1J102J
RK73HB1J154J
RK73HB1J474J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
0.0
470K
1.0K
150K
470K
J
J
J
J
J
1/10W
1/16W
1/16W
1/16W
1/16W
R918,919
R920,921
R922
R923
R925
RK73HB1J102J
RK73HB1J473J
RK73HB1J102J
RK73HB1J123J
RK73HH1J334D
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
1.0K
47K
1.0K
12K
330K
J
J
J
J
D
1/16W
1/16W
1/16W
1/16W
1/16W
R926
R927
R928
R929
RK73HH1J223D
RK73HB1J102J
RK73HB1J000J
RK73HB1J102J
CHIP R
CHIP R
CHIP R
CHIP R
22K
1.0K
0.0
1.0K
D
J
J
J
1/16W
1/16W
1/16W
1/16W
S1
S70-0483-05
TACT SWITCH
D501
D505
D506,507
D510,511
D514-517
HSC119
DA221
1SV325F
1SV282-F
1SV282-F
DIODE
DIODE
VARIABLE CAPACITANCE DIODE
VARIABLE CAPACITANCE DIODE
VARIABLE CAPACITANCE DIODE
D518
D519
D600,601
D604
D605
HSC119
1SV278F
HSC277
HZU2ALL
HZU5CLL
DIODE
VARIABLE CAPACITANCE DIODE
DIODE
ZENER DIODE
ZENER DIODE
D606,607
D608
D700
D702-704
D705
HVC131
HSC119
HSC119
1SV286F
HSC119
DIODE
DIODE
DIODE
VARIABLE CAPACITANCE DIODE
DIODE
D706
D708
D709
D710
D711
1SV286F
1SV286F
HVC131
1SV286F
HVC131
VARIABLE CAPACITANCE DIODE
VARIABLE CAPACITANCE DIODE
DIODE
VARIABLE CAPACITANCE DIODE
DIODE
D901
D902
1SR154-400
HSC119
DIODE
DIODE
TC75W51FUF
LM73CIMKX-0
LMC7101BIM5
Note 1
LMC7101BIM5
MOS-IC
MOS-IC
MOS-IC
MOS-IC
MOS-IC
TC75W51FUF
TA75W01FUF
MCP6021-E/OT
TK10931VTL-G
LMC7101BIM5
MOS-IC
MOS-IC
MOS-IC
ANALOGUE IC
MOS-IC
TC75S51FE(F)
MOS-IC
IC404
IC500
IC501
IC502
IC503
IC504
IC600
IC700
IC701
IC702,703
IC900
26
Parts No.
R799
R900
R901
R902
R903
∗
∗
Note 1 : This part cannot be replaced. Therefore, this part is not supplied as a service part.
NX-300
PARTS LIST
TX-RX UNIT (X57-7370-10)
Ref. No.
IC901
IC902
IC903
New
Address parts
Parts No.
Description
XC9101D09AKR
TK11250CUCB
TK71733S
ANALOGUE IC
MOS-IC
BI-POLAR IC
2SC5383-T111
2SK879-F(Y)
2SC5636
2SC5383-T111
2SK508NV(K52)
TRANSISTOR
FET
TRANSISTOR
TRANSISTOR
FET
Q510
Q511
Q512
Q600,601
Q602
SSM6L05FU-F
2SJ347F
2SC5636
2SC5636
2SK3077F
FET
FET
TRANSISTOR
TRANSISTOR
FET
Q603
Q604
Q605
Q606
Q607
RD01MUS1-T113
2SC5383-T111
SSM3K15TE(F)
RD07MVS1BT122
DTC144EE
FET
TRANSISTOR
FET
FET
DIGITAL TRANSISTOR
2SK1824-A
EMD5
2SC5108(Y)F
2SC4215-F(Y)
3SK318
FET
TRANSISTOR
TRANSISTOR
TRANSISTOR
FET
2SC5383-T111
3SK318
2SK1830F
UMG9N
SSM6L05FU-F
TRANSISTOR
FET
FET
TRANSISTOR
FET
SSM5H01TU-F
2SA1955A-F
FET
TRANSISTOR
ERTJ0EV104H
THERMISTOR
Q503
Q504
Q505
Q507
Q508,509
Q608
Q610
Q700
Q701
Q703
∗
∗
∗
Q704
Q705
Q706
Q900
Q901-903
Q904
Q905
TH600
∗
Destination
Ref. No.
New
Address parts
Parts No.
Description
Destination
27
NX-300
EXPLODED VIEW
B
A
10
61
60
2
9
8
54
54
A
54
1
40
1
4
6
64
20
59
5
705
58
54
54
706
Control unit
Hx2
(X53)
Hx2
38
37
50
67
Option board
unit (X57 B/2)
69
70
29
33
53
H
707
65
709 H
44 Hx2
23
2
708
H
707 31
43
39
45
30
39
S1
D
Hx8
54
H
D
H
15
48
Hx2
66
47
E
TX-RX unit
(X57 A/2)
42
19
72
E
VR1
21
12
F
F
41
25
52
26
21
7
704
3
14
34
57
68
700
49
55
C
24
C
3
27
35
703
16
A
B
C
D
E
:N08-0564-04
:N09-2426-14
:N09-2440-15
:N09-6549-04
:N09-6554-05
F :N14-0844-04
G :N30-3008-60
H :N83-2005-48
56
36
17
701
E
18
B
E
702
28
Parts with the exploded numbers larger than 700 are not supplied.
If a part reference number is listed in a box on the exploded view of the PCB, that part does not come with the PCB. These parts must be ordered separately.
NX-300
PACKING
D
C
46. BELT CLIP
(J29-0730-05)
4. CAP
(B09-0712-03)
40. PACKING(CAP)
(G11-1769-04)
G. PAN HEAD MACHINE SCREW
(N30-3008-60)x2
1
A. DRESSED SCREW
(N08-0564-04)
711
11. INSTRUCTION MANUAL
(B62-2014-00)
712
2
711
3
713
Parts with the exploded numbers larger than 700 are not supplied.
29
NX-300
ADJUSTMENT
Fault diagnosis of the BGA IC
Overview: A flowchart for determining whether or not the transceiver can be powered on (the LCD does not function even if the
power switch is turned on) due to broken BGA parts.
BGA parts
• ASIC (IC108)
• DSP (IC102)
• FLASH (IC101)
• SRAM (IC103)
● Checking power supply voltage
Checking voltage
Points to be checked
33M IC404 (5 pin)
15M IC405 (5 pin)
33A IC406 (5 pin)
31BU IC416 (3 pin)
When an abnormal
value is confirmed.
Normal voltage
3.3V
1.5V
3.3V
3.1V
33M has an abnormal voltage.
[ASIC]
Remove L714 to check the voltage of the 33M.
If the voltage becomes normal, the ASIC is broken.
[DSP]
Remove L712 to check the voltage of the 33M.
If the voltage becomes normal, the DSP is broken.
[FLASH]
Remove L717 to check the voltage of the 33M.
If the voltage becomes normal, the FLASH is broken.
Power supply of each device is connected through the coil.
[ASIC]
33M:L714 15M:L715 33A:L716
[DSP]
33M:L712 15M:L711
[FLASH]
33M:L717
[SRAM]
31BU:L710
● Checking the clock
15M has an abnormal voltage.
[ASIC]
Remove L715 to check the voltage of the 15M.
If the voltage becomes normal, the ASIC is broken.
[DSP]
Remove L711 to check the voltage of the 15M.
If the voltage becomes normal, the DSP is broken.
When a normal value
is confirmed.
Checking the clock
Points to be checked
18.432MHz ASIC side R158
DSP side R159
32.768kHz IC106(1 pin)
● Checking the
Reset/Control signal
Normal voltage (3.3V)
18.432MHz
18.432MHz
32.768kHz
When an abnormal
value is confirmed.
When a normal value
is confirmed.
Normal voltage
3.3V
3.3V
3.3V
33A has an abnormal voltage.
[ASIC]
Remove L716 to check the voltage of the 33A.
If the voltage becomes normal, the ASIC is broken.
31BU has an abnormal voltage.
[SRAM]
Remove L710 to check the voltage of the 31BU.
If the voltage becomes normal, the SRAM is broken.
Checking the control signal input to the ASIC
Points to be checked
RESET IC105 (4 pin)
/BINT Q401 (6 pin)
/PSW Q402 (3 pin)
Checking an abnormal point
If the voltage is not corrected, there is a problem
other than the BGA parts.
When an abnormal
value is confirmed.
The BGA parts are not broken.
When a normal value
is confirmed.
Checking the control signal output from the ASIC
Points to be checked
/FRST C110
Normal voltage
3.3V
When a normal value
is confirmed.
30
When an abnormal
value is confirmed.
If the /FRST is always 0V, the ASIC is broken.
If the /FRST repeats 3.3V and 0V at intervals,
the ASIC, FLASH and SRAM may be broken.
NX-300
ADJUSTMENT
● Checking the output signal
from the ASIC
Points to be checked
SBC R432
When a normal value
is confirmed.
Normal voltage
3.3V
When a normal value
is confirmed.
Points to be checked
/DRST C109
● The LCD displays control
Points to be checked
/LCDRST R406
Normal voltage
3.3V
When a normal value
is confirmed.
Normal voltage
3.3V
When a normal value
is confirmed.
Points to be checked
/CS4 IC402 (7 pin)
Normal voltage
3.3V→0V→3.3V
When a normal value
is confirmed.
Points to be checked
5A IC708 (5 pin)
Normal voltage
5.0V
When an abnormal
value is confirmed.
Remove R432. If the ASIC side is 0V,
the ASIC/FALSH/SRAM may be broken.
When an abnormal
value is confirmed.
If the /DRST is 0V, the ASIC/FALSH/SRAM are broken.
When an abnormal
value is confirmed.
When an abnormal
value is confirmed.
Remove R406. If the ASIC side is 0V,
the ASIC/FALSH/SRAM may be broken.
If the /CS4 is 0V or 3.3V, the ASIC/FALSH/SRAM
may be broken.
When an abnormal
value is confirmed.
If 5A is 0V, parts other than the BGA are broken.
When a normal value
is confirmed.
It is unlikely that the BGA parts are broken.
● When an error display appears on the LCD.
The LCD displays "INIT ERROR1".
An error occurs when the ASIC internal RAM reads
or writes. The ASIC may be broken.
The LCD displays "INIT ERROR2".
An error occurs when the DSP internal RAM reads
or writes. The DSP may be broken.
The LCD displays "INIT ERROR3".
An error occurs when the SRAM internal RAM
reads or writes. The SRAM may be broken.
* Descriptions of signal names
1) RST(RESET) : ASIC reset signal
LOW → Reset
2) /BINT
: Battery final voltage monitoring LOW → Final voltage
3) /PSW
: Power switch signal
LOW → ON
4) /FRST
: FLASH reset signal
LOW → Reset
5) SBC
: Switch B control
HIGH → ON
6) /DRST
: DSP reset signal
LOW → Reset
7) /LCDRST
: LCD reset signal
LOW → Reset
8) /CS4
: LCD controller chip select signal LOW → Active
9) 5A
: Analog peripheral control 5.0V power supply
31
NX-300
ADJUSTMENT
Controls
Selector
Power switch / Volume
Orange key
[PTT]
Transmit
-
[0] to [9]
and
[#], [ ]
Use as the DTMF keypad.
If a key is pressed during
transmission, the DTMF
corresponding to the key
that was presses is sent.
-
*
“FNC” appears on the sub LCD display
Key
Function
Display
-
-
[Selector]
PTT switch
Universal
connector
Side1 key
Side2 key
MIC
1
4
3
2
ABC
5
JKL
GHI
7 PQ
DEF
6 MN
O
[
]
Function off
[
]
Analog/NXDN
Analog: “A”
NXDN: “N”
[Side1]
Function off
[Side2]
LCD all lights
LCD all point appears
[
High power/Low power
High: “H”
Low: “L”
]
-
[
]
Function off
[
]
Compander on/off
On:
icon appears
-
Beat shift on/off
On:
icon appears
YZ
9 WX
RS
8
TUV
#
0
[
Panel Test Mode
■ Test mode operation features
This transceiver has a test mode. To enter test mode,
press and hold the [ ] key while turning the transceiver
power ON. Before the transceiver enters test mode, the
frequency version information appears on the LCD momentarily. Test mode can be inhibited by programming. To
exit test mode, turn the transceiver power OFF. The following functions are available in test mode.
]
[Orange]
Function off
-
[PTT]
Transmit
-
[0] to [9]
and
[#], [ ]
Function off
-
*
• LED indicator
Red LED
Green LED
Lights during transmission.
Lights when there is carrier.
• Sub LCD indicator
■ Key operation
“FNC”
Appears at function on.
“FNC” not appears on the sub LCD display
Key
Function
Display
-
-
[Selector]
]
]
Push: Test channel down
Hold: Test channel down
continuously
Channel No.
[Side1]
Push: Squelch level up
Hold: Squelch off
Squelch level
Squelch off: icon appears
[Side2]
Wide/Narrow/Very narrow
Wide : “w”
Narrow : “n”
Very narrow : “v”
[
Shift to panel tuning mode
[
]
Channel No.
“FNC” appears on the
sub LCD display
]
Function on
[
]
MSK 1200bps and 2400bps 2400bps :
]
[Orange]
+25
An SQ5
[
[
32
Temperature
Push: Test channel up
Hold: Test channel up
continuously
[
Push: Test signaling up
Hold: Test signaling up
continuously
-
• LCD display in panel test mode
icon appears
Signaling No.
-
Sub LCD
display
1- 1
Signaling No.
Channel No.
Squelch level
(Analog mode only)
An : Analog narrow mode
Aw : Analog wide mode
Nn : NXDN narrow mode
Nv : NXDN very narrow mode
NX-300
ADJUSTMENT
■ Frequency and Signaling
• NXDN mode signaling
The transceiver has been adjusted for the frequencies
shown in the following table. When required, readjust them
following the adjustment procedure to obtain the frequencies
you want in actual operation.
No.
RX
TX
1
RAN1
RAN1
2
None
PN9
3
RAN1
Maximum deviation pattern
• Test frequency
CH
RX (MHz)
TX (MHz)
Panel Tuning Mode
1
485.05000
485.10000
■ Preparations for tuning the transceiver
2
450.05000
450.10000
3
519.95000
519.90000
4
485.00000
485.00000
5
485.20000
485.20000
6
485.40000
485.40000
7~16
-
-
Before attempting to tune the transceiver, connect the
unit to a suitable power supply.
Whenever the transmitter is turned, the unit must be connected to a suitable dummy load (i.e. power meter).
The speaker output connector must be terminated with a
8Ω dummy load and connected to an AC voltmeter and an
audio distortion meter or a SINAD measurement meter at all
times during tuning.
• Analog mode signaling
No.
■ Transceiver tuning (To enter tuning mode)
RX
TX
None
To enter tuning mode, press the [ ] key while the transceiver is in test mode. Use the [ ] key to write tuning data
]/[
] key to adjust tunthrough tuning modes, and the [
ing requirements (1 to 4096 appears on the LCD).
Use the [
] key to select the adjustment item through
tuning modes. Use the [ ] key to adjust 5 reference level
adjustments, and use the [Side2] key to switch between
Wide/Narrow/Very narrow.
1
None
2
None
100Hz Square Wave
3
LTR Data :
AREA=0, GOTO=12
HOME=12
ID=47, FREE=25
LTR Data :
AREA=0, GOTO=12
HOME=12
ID=47, FREE=25
4
QT : 67.0Hz
QT : 67.0Hz
5
QT : 151.4Hz
QT : 151.4Hz
6
QT : 210.7Hz
QT : 210.7Hz
7
QT : 254.1Hz
QT : 254.1Hz
8
DQT : D023N
DQT : D023N
2.6
9
DQT : D754I
DQT : D754I
An
10
DTMF : 159D
DTMF : 159D
11
None
DTMF Code 9
12
2-tone :
A : 304.7Hz
B : 3106.0Hz
2-tone :
A : 304.7Hz
B : 3106.0Hz
13
Single Tone : 979.9Hz
Single Tone : 979.9Hz
14
None
Single Tone : 1000Hz
15
None
MSK
16
MSK
MSK
• LCD display in panel tuning mode
CV voltage, AD value, etc
CNTR
256
Adjustment value
Adjustment point
(1~4096)
L
L'
Proper value guide
C
(Frequency adjust only)
H'
Adjustment
item
H
33
NX-300
ADJUSTMENT
■ Key operation
■ 5 reference level adjustments frequency
Function
Key
Push
Tuning point
Hold (1 second)
[Selector]
-
RX (MHz)
TX (MHz)
Low
450.05000
450.10000
Low’
467.55000
467.60000
[
]
Adjustment value up
Continuation up
Center
485.05000
485.10000
[
]
Adjustment value down
Continuation down
High’
502.55000
502.60000
High
519.95000
519.90000
[Side1]
Auto adjustment start
-
[Side2]
Wide/Narrow/Very narrow
-
[
]
Shift to panel test mode
-
[
]
To enter 5 reference level
adjustments
[
]
Writes the adjustment value
[
]
Go to next adjustment item
[Orange]
Back to last adjustment item
-
[PTT]
Transmit
[0] to [9]
and
[#], [ ]
-
*
■ Adjustment item and Display
Order
Adjustment item
Main LCD display
Sub LCD display
1
LCD Contrast
CNTR
-
2
3
4
5
6
7
8
9
10
11
34
Volume 1
(Counterclockwise Max)
Volume 2
(Clockwise Max)
RX Assist
TX Assist
RTC
High Power
Low Power
Balance
NXDN Deviation
Analog Max
Deviation
VOL1
VOL2
RAST
TAST
RTC
HIPWR
LOPWR
BAL
NDEV
ADEV
Aw
An
1 point ADJ
1~256
1 point ADJ
1~256
1 point ADJ
(VOL measurement value)
1~256
5 point ADJ
(CV voltage)
1~4096
5 point ADJ
(CV voltage)
1~4096
1 point ADJ
-
-
(Encode frequency)
-
-
Nv
Adjustment range
(VOL measurement value)
-
Nn
-62~-1/0/+1~+62
-
5
-
5
-
5
-
-
5
5
-
-
-
-
-
-
5
5
-
-
1~1024
1~1024
1~256
1~1024
1~1024
NX-300
ADJUSTMENT
Order
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Adjustment item
QT Deviation
DQT Deviation
LTR Deviation
DTMF Deviation
Single Tone
Deviation
MSK Deviation
CW ID Deviation
VOX 1
VOX 10
Sensitivity 1
Sensitivity 2
RSSI (Reference)
Squelch Open
Low RSSI
High RSSI
Squelch Tight
Battety Warning
Level
Main LCD display
QT
DQT
LTR
DTMF
TONE
MSK
CWID
VOX1
VOX10
SENS1
SENS2
RRSSI
SQL
LRSSI
HRSSI
SQLT
BATT
Sub LCD display
-
-
-
-
-
-
-
Aw
1
1
1
(RSSI measurement value)
(ASQDET measurement value)
(RSSI measurement value)
(RSSI measurement value)
(ASQDET measurement value)
(BATT measurement value)
Nv
1
1
1
1
1
1
1
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1
-
-
-
-
- *1
5
- *1
5
- *1
5
- *1
5
-
-
1~1024
1~1024
1~1024
1~1024
1~1024
1~1024
1~1024
1 point ADJ
1~256
1 point ADJ
(VOX measurement value)
(RSSI measurement value)
Nn
Adjustment range
1
(VOX measurement value)
(RSSI measurement value)
An
1~256
-
5
-
5
5
5
5
5
5
5
5
5
5
5
1~256
1~256
1~256
1~256
1~256
1~256
1~256
1 point ADJ
1~256
*1: The adjustment of NXDN Narrow is common with the adjustment of Analog Narrow.
35
NX-300
ADJUSTMENT
■ Panel tuning mode flow chart
Panel Test Mode
[ ]
[
36
]hold
[
LCD Contrast
CNTR
]press [ ]hold
[
Volume 1(CCW Max)
VOL1
]press [ ]hold
[
Volume 2(CW Max)
VOL2
]press [ ]hold
[
RX Assist
RAST
]press [
]hold
[
TX Assist
TAST
]press [
]hold
[
RTC
RTC
]press [
[
High Power
HIPWR
]press [ ]hold
[
Low Power
LOPWR
]press [ ]hold
[
Balance
BAL
]press [
[
NXDN Deviation
NDEV
]press [ ]hold
[
Analog Max Deviation
ADEV
]press [ ]hold
[
QT Deviation
QT
]press [ ]hold
Adjustment Item
N/W/VN
LCD Display
For all adjustment items, press the
[ ] key to write the adjustment value.
5 reference level
Adjustments
Low
L
[
]
5 reference level
Adjustments
Low-Center
L'
[ ]
[
]
[
]
5 reference level
Adjustments
Center
C
[
]
Center-High
H'
[ ]
[
]
High
H
[
]
]hold
[
]
5 reference level
Adjustments
[
Narrow
Narrow
]
[
[
Narrow
[
[
]
5 reference level
Adjustments
[
]
5 reference level
Adjustments
Adjustment Point
LCD Display
]
]
]
5 reference level
Adjustments exit
]hold
Narrow
[
Narrow
[
[Side2]
NXDN Deviation
NDEV
[Side2]
Analog Max Deviation
ADEV
]
DQT Deviation
DQT
]press [ ]hold
Narrow
[
LTR Deviation
LTR
]press [ ]hold
Narrow
[
DTMF Deviation
DTMF
]press [ ]hold
Narrow
[
Single Tone Deviation
TONE
]press [ ]hold
Narrow
[
MSK Deviation
MSK
]press [ ]hold
Narrow
[
CW ID Deviation
CWID
]press [ ]hold
Very
Narrow
[
[
VOX Level 1
VOX1
]press [ ]hold
[
VOX Level 10
VOX10
]press [ ]hold
[
Sensitivity 1
SENS1
]press [ ]hold
[
Sensitivity 2
SENS2
]press [ ]hold
[
RSSI(Reference)
RRSSI
]press [ ]hold
[
[
Squelch(Open)
SQL
]press [ ]hold
[
[
RSSI(Low)
LRSSI
]press [ ]hold
[
[
RSSI(High)
HRSSI
]press [ ]hold
[
[
Squelch(Tight)
SQLT
]press [ ]hold
[
[
Battery Warning Level
BATT
]press
Narrow
Narrow
Narrow
QT Deviation
QT
Wide
[Side2]
DQT Deviation
DQT
Wide
[Side2]
LTR Deviation
LTR
Wide
[Side2]
DTMF Deviation
DTMF
Wide
[Side2]
Single Tone Deviation
TONE
Wide
[Side2]
MSK Deviation
MSK
Wide
]
5 reference level
Adjustments
[
]
5 reference level
Adjustments
[Side2]
RSSI(Reference)
RRSSI
]
Narrow
[Side2]
Squelch(Open)
SQL
[Side2]
RSSI(Low)
LRSSI
[Side2]
RSSI(High)
HRSSI
]
Narrow
]
[Side2]
Squelch(Tight)
SQLT
RSSI(Reference)
RRSSI
[Side2]
Squelch(Open)
SQL
[Side2]
RSSI(Low)
LRSSI
]
Wide
[
[Side2]
]
Wide
[
5 reference level
Adjustments
]
Wide
[
]
Narrow
Wide
[
]
Narrow
]
[Side2]
[
5 reference level
Adjustments
Wide
[
]
Narrow
Very
Narrow
[ ]
]
[Side2]
RSSI(High)
HRSSI
Very
Narrow
[ ]
[Side2]
Very
Narrow
[ ]
[Side2]
Very
Narrow
[ ]
[Side2]
Very
Narrow
[ ]
[Side2]
5 reference level
Adjustments
5 reference level
Adjustments
5 reference level
Adjustments
5 reference level
Adjustments
Wide
[
]
5 reference level
Adjustments
NX-300
ADJUSTMENT
Test Equipment Required for Alignment
1.
Test Equipment
Standard Signal Generator
(SSG)
2.
Power Meter
3.
4.
9.
Deviation Meter
Digital Volt Meter
(DVM)
Oscilloscope
High Sensitivity
Frequency Counter
Ammeter
AF Volt Meter
(AF VTVM)
Audio Generator (AG)
10.
Distortion Meter
11.
12.
8Ω Dummy Load
Regulated Power Supply
5.
6.
7.
8.
Major Specifications
Frequency Range
400 to 520MHz
Modulation
Frequency modulation and external modulation
Output
-127dBm/0.1µV to greater than -20dBm/22.4mV
* When performing the Frequency adjustment, the following accuracy is necessary.
• 0.001ppm
Use a standard oscillator for adjustments, if necessary.
Input Impedance
50Ω
Operation Frequency
400 to 520MHz
Measurement Range
Vicinity of 10W
Frequency Range
400 to 520MHz
Measuring Range
10mV to 10V DC
Input Impedance
High input impedance for minimum circuit loading
DC through 30MHz
Frequency Range
10Hz to 1000MHz
Frequency Stability
0.2ppm or less
5A
Frequency Range
50Hz to 10kHz
Voltage Range
1mV to 10V
Frequency Range
50Hz to 5kHz or more
Output
0 to 1V
Capability
3% or less at 1kHz
Input Level
50mV to 10Vrms
Approx. 8Ω, 3W
5V to 10V, approx. 3A
Useful if ammeter equipped
■ The following parts are required for adjustment
1. Antenna connector adapter
The antenna connector of this transceiver uses an SMA
terminal.
Use an antenna connector adapter [SMA(f) – BNC(f) or
SMA(f) – N(f)] for adjustment. (The adapter is not provided as
an option, so buy a commercially-available one.)
2. Nut wrench
In order to turn the volume nut and the channel selector
nut, use a recommendation tool.
KENWOOD part No. : W05-1123-00
Connect the power cable properly between the battery jig
installed in the transceiver and the power supply, and be sure
output voltage and the power supply polarity prior to switching
the power supply ON, otherwise over voltage and reverse
connection may damage the transceiver, or the power supply
or both.
Note: When using the battery jig, you must measure the
voltage at the terminals of the battery jig. Otherwise, a slight
voltage drop may occur within the power cable, between the
power supply and the battery jig, especially while the
transceiver transmits.
SCHEMATIC DIAGRAM
3. Battery Jig (W05-1370-00)
100µ/25V
C3
470P/25V
C2
100P/25V
–
C1
- Terminal (Black)
1.8M
R1
S
+
+ Terminal (Red)
+ Terminal
(Red)
– Terminal
(Black)
Power cable
Power
supply
37
NX-300
ADJUSTMENT
4. Universal connector
• PC tuning
Use the interface cable (KPG-36/36A) for PC tuning or the
lead wire with plug (E30-3287-18) and screw (N08-0535-08)
for panel tuning. Connect the plug to the universal connector
of the transceiver and tighten the screw.
Connect the wires to the PCB in the connector case of
interface cable.
For output the wires out of the connector case, need to
process the connector case.
The lead wire with plug (E30-3287-18) and screw (N080535-08) terminals are as follows. Numbers are universal
connector terminal numbers.
KPG-36/36A
Caution
1. When connecting the plug to the universal connector of
the transceiver, a short circuit may occur. To prevent this,
be sure to turn the transceiver POWER switch off.
2. Since the RX AF output is a BTL output, there is a DC
component. Isolate this with a capacitor or transformer as
shown in the figure.
3. Do not connect an instrument between red or black and GND.
Remove the
screw
Connector case
• Universal connector
8Ω
PCB layout
100µ 10V
+
100µ 10V
1 : SSW
2 : SP+
3 : SP–
4 : MSW
5 : EMC
6 : ME
7 : PTT
8 : PF
+
10µ 10V
+
Audio generator
10 : E
9 : OPT
11 : 5V
12 : TXD
13 : RXD
14 : NC
Shield
• Panel tuning
2 : RED (RX AF OUTPUT)
3 : BLACK (RX AF OUTPUT)
5 : WHITE (MIC INPUT)
SCREW
6 : BROWN (MIC GND)
TUBE
7 : BLUE (PTT SW) GND → ON
8 : YELLOW (PF SW)
10 : BROWN (GND)
11 : GREEN (5M)
To transceiver
BLU (7)
PTT SW
BRN (10)
100µ 10V
RED (2)
+
8Ω
BLK (3)
AF Voltmeter
+
100µ 10V
WHT
(5) +
10µ 10V
BRN (6)
38
AF voltmeter
Audio generator
NX-300
ADJUSTMENT
Radio Check Section
Condition
Item
Panel test mode
1. Frequency
check
1) CH-Sig : 1-1
PTT : ON
2. High power
check
1) CH-Sig : 1-1
PTT : ON
2) CH-Sig : 2-1
PTT : ON
3) CH-Sig : 3-1
PTT : ON
3. Low power
check
1) CH-Sig : 1-1
PTT : ON
2) CH-Sig : 2-1
PTT : ON
3) CH-Sig : 3-1
PTT : ON
4. MIC
sensitivity
check
1) CH-Sig : 1-1
AG : 1kHz
PTT : ON
Measurement
PC test mode
Testequipment
Unit
1) Test Channel
Channel : 1
Test Signaling
Mode : Analog
Signaling : 1
PTT : Press [Transmit]
button.
1) Test Channel
Channel : 1
Test Signaling
Mode : Analog
Signaling : 1
PTT : Press [Transmit]
button.
2) Test Channel
Channel : 2
Test Signaling
Mode : Analog
Signaling : 1
PTT : Press [Transmit]
button.
3) Test Channel
Channel : 3
Test Signaling
Mode : Analog
Signaling : 1
PTT : Press [Transmit]
button.
1) Test Channel
Channel : 1
Test Signaling
Mode : Analog
Signaling : 1
PTT : Press [Transmit]
button.
2) Test Channel
Channel : 2
Test Signaling
Mode : Analog
Signaling : 1
PTT : Press [Transmit]
button.
3) Test Channel
Channel : 3
Test Signaling
Mode : Analog
Signaling : 1
PTT : Press [Transmit]
button.
1) Test Channel
Channel : 1
Test Signaling
Mode : Analog
Signaling : 1
AG : 1kHz
PTT : Press [Transmit]
button.
f. counter
Panel
Terminal
ANT
Power
meter
Ammeter
Adjustment
Unit
Parts
Method
Specifications/
Remarks
Check an internal
+0.05/+0.55ppm
temperature of radio +24.25Hz~
within 25˚C ± 2˚C.
+266.81Hz
@485.1MHz
Check
4.5W~5.5W
2.3A or less
0.7W~1.4W
1.4A or less
Deviation Panel
meter
Oscilloscope
AG
AF VTVM
ANT
Universal
connector
Adjust AG input to
12.5mV± 5.8mV
get a standard MOD. Note: The SSW
terminal (pin 1) of
the universal
connector must
be connected to
GND when
checking MIC
sensitivity.
39
NX-300
ADJUSTMENT
Condition
Item
5. Sensitivity
check
Panel test mode
1) CH-Sig : 1-1
SSG output
Wide: –117dBm
(0.32µV)
(MOD : 1kHz/± 3kHz)
Narrow: –117dBm
(0.32µV)
(MOD : 1kHz/± 1.5kHz)
PC test mode
Measurement
Testequipment
Unit
Terminal
1) Test Channel
SSG
Panel
AF VTVM
Channel : 1
Test Signaling
Oscilloscope
Mode : Analog
Signaling : 1
SSG output
Wide: –117dBm
(0.32µV)
(MOD : 1kHz/± 3kHz)
Narrow : –117dBm
(0.32µV)
(MOD : 1kHz/± 1.5kHz)
ANT
Universal
connector
Adjustment
Unit
Parts
Method
Check
Specifications/
Remarks
12dB SINAD or
more
Common Section
Condition
Item
Panel tuning mode
PC test mode
1) BATT terminal voltage:7.5V
2) SSG standard modulation
[Wide] MOD:1kHz,DEV:3kHz
[Narrow] MOD:1kHz,DEV:1.5kHz
2. LCD contrast 1) Adj item:[CNTR]
1) Adj item:[LCD Contrast]
Adjust:[***]
Press [Apply] button
Press [ ] key to store to store the
the adjustment value. adjustment value.
Measurement
Testequipment
Unit
Terminal
Adjustment
Unit
Parts
Method
Specifications/
Remarks
1. Setting
Panel
[Panel Adjust the LCD
tuning contrast by looking.
mode]
[
],
[
]
This item is
needed when the
LCD ASSY (B380923-05) is
replaced.
[PC test
mode]
[ ],[ ]
3. Volume
counterclockwise
4. Volume
clockwise
1) Adj item:[VOL1]
Adjust:[***]
1) Adj item:[VOL2]
Adjust:[***]
1) Adj item:
[Counterclockwise
Volume]
1) Adj item:
[Clockwise Volume]
[Panel tuning mode]
Turn the volume knob
counterclockwise fully.
Press [ ] key to store
the adjustment value.
[PC test mode]
Turn the volume knob
counterclockwise fully.
Press [Apply] button to
store the adjustment
value.
[Panel tuning mode]
Turn the volume knob
clockwise fully. Press
[ ] key to store the
adjustment value.
[PC test mode]
Turn the volume
knob clockwise
fully. Press [Apply]
button to store the
adjustment value.
40
This item is
needed when the
variable resistor
(R31-0666-05) is
replaced.
NX-300
ADJUSTMENT
Condition
Item
5. Assist
voltage
[RX]
[TX]
6. RTC
oscillation
frequency
adjust
7. Frequency
adjust
Panel tuning mode
PC test mode
Measurement
Testequipment
Unit
Terminal
1) Adj item:[Receive
1) Adj item:[RAST]
Assist]
Adjust:[****]
2) Adj item:[L RAST]→ 2) Adj item:[Low]
[Low’]
[L’ RAST]→[C RAST]→
[Center]
[H’ RAST]→[H RAST]
[High’]
Adjust:[****]
[High]
Press [ ] key to store
the adjustment value. Press [Apply All] button to
store the adjustment value.
1) Adj item:[TAST]
1) Adj item:[Transmit
Adjust:[ ****]
Assist]
2) Adj item:[L TAST]→ 2) Adj item:[Low]
[L’ TAST]→[C TAST]→
[Low’]
[H’ TAST]→[H TAST]
[Center]
[High’]
Adjust:[****]
PTT : ON (RF power
[High]
PTT: Press [Transmit]
is not output.)
Press [ ] key to store button.
the adjustment value. Press [Apply All] button to
store the adjustment value.
1) Adj item:[RTC]
1) Adj item:
Adjust:[***]
[RTC(Real-time clock)]
* The Frequency
adjustment can be
performed only in
PC test mode.
1) Adj item:
SSG
[Frequency]
SSG output : -20dBm
(22.4mV)
(CW (without
modulation))
Caution:
Perform the frequency
adjustment under the
following conditions.
• Temperature range
of +23˚C to +27˚C
(+73.4˚F to +80.6˚F).
(The temperature is
displayed on the
Frequency adjustment
screen of the KPG111D and the LCD
of the transceiver.)
• Use an accuracy of
0.001ppm for the
SSG. (Use a standard
oscillator if necessary.)
Adjustment
Unit
Parts
Panel
[Panel
tuning
mode]
[
],
[
]
Method
The sub LCD display
and [V] indicator on
the PC window
shows VCO lock
voltage. Change the
adjustment value to
[PC test get VCO lock voltage
mode] within the limit of the
[ ],[ ] specified voltage.
Specifications/
Remarks
2.5V± 0.1V
[PC test mode]
Press [Apply All]
button to store the
adjustment value
after all
adjustment point
was adjusted.
Note:
Confirm the VCO
lock voltage
approximately 3
seconds after the
adjustment value is
changed.
[Side1] [Panel tuning mode]
Press [Side1] key.
After automatic
adjustment adjusted
value is displayed on
LCD.
Press [ ] key to store
the adjustment value.
Panel
ANT
[PC test mode]
Press [Start] button of
“Auto Tuning”. Press
[Apply] button to store
the adjustment value
after the automatic
adjustment was
finished.
[PC test mode]
Press [Start] button of
“Auto Tuning”. Press
[Apply] button to store
the adjustment value
after the automatic
adjustment was
finished.
[PC test mode]
The value of
“IF20” will
become around
“0” after the
adjustment was
finished.
41
NX-300
ADJUSTMENT
Transmitter Section
Condition
Item
Panel tuning mode
1. High power
adjust
1) Adj item:[HIPWR]
Adjust:[****]
2) Adj item:
[L HIPWR]→
[L’ HIPWR]→
[C HIPWR]→
[H’ HIPWR]→
[H HIPWR]
Adjust:[****]
PTT : ON
Press [ ] key to store
the adjustment value.
1) Adj item:[LOPWR]
Adjust:[****]
2) Adj item:
[L LOPWR]→
[L’ LOPWR]→
[C LOPWR]→
[H’ LOPWR]→
[H LOPWR]
Adjust:[****]
PTT : ON
Press [ ] key to store
the adjustment value.
1) Adj item:[BAL]
Adjust:[***]
Deviation meter
LPF : 3kHz
HPF : OFF
2) Adj item:[L BAL]→
[L’ BAL]→[C BAL]→
[H’ BAL]→[H BAL]
Adjust:[***]
PTT : ON
Press [ ] key to store
the adjustment value.
2. Low power
adjust
3. Balance
adjust *2
Measurement
Testequipment
Unit
1) Adj item: [High
Power
Transmit Power]
meter
2) Adj item:[Low]
Ammeter
[Low’]
[Center]
[High’]
[High]
PTT : Press [Transmit]
button.
Press [Apply All] button to
store the adjustment value.
Panel
PC test mode
Terminal
ANT
Unit
Panel
Parts
Method
[Panel 5.0W
tuning
mode]
[
],
[
]
[PC test
mode]
[ ],[ ]
1) Adj item:
[Low Transmit Power]
2) Adj item:[Low]
[Low’]
[Center]
[High’]
[High]
PTT : Press [Transmit]
button.
Press [Apply All] button to
store the adjustment value.
0.8W
1) Adj item:[Balance] Deviation
Deviation meter
meter
Oscilloscope
LPF : 3kHz
HPF : OFF
2) Adj item:[Low]
[Low’]
[Center]
[High’]
[High]
PTT : Press [Transmit]
button.
Press [Apply All] button to
store the adjustment value.
The sub LCD display
shows the single tone
frequency that DSP
generates. The tone
frequency is alternately
switched to 20Hz and
2kHz by pressing
[Side1] key on the
front panel or checking
[2000Hz Sine Wave]
check box on the PC
window while
transmitting. Change
the adjustment value
to get same deviation
at 20Hz and 2kHz
within the limit of the
specified voltage.
*2: Refer to the “Mode, Signaling, Necessary adjustment and order” table on page 46.
42
Adjustment
Specifications/
Remarks
± 0.2W
2.3A or less
[PC test mode]
Press [Apply All]
button to store the
adjustment value
after all
adjustment point
was adjusted.
± 0.1W
1.2A or less
[PC test mode]
Press [Apply All]
button to store the
adjustment value
after all
adjustment point
was adjusted.
2kHz Tone
deviation is within
± 1.0% of 20Hz
tone deviation.
[PC test mode]
Press [Apply All]
button to store the
adjustment value
after all
adjustment point
was adjusted.
NX-300
ADJUSTMENT
Condition
Item
Panel tuning mode
4. NXDN
Deviation
adjust *2
1) Adj item:[Nn NDEV]
Adjust:[****]
Deviation meter
LPF : 3kHz
[Narrow]
HPF : OFF
2) Adj item:
[NnL NDEV]→
[NnL’ NDEV]→
[NnC NDEV]→
[NnH’ NDEV]→
[NnH NDEV]
Adjust:[****]
PTT : ON
Press [ ] key to store
the adjustment value.
[Very Narrow] 1) Adj item:[Nv NDEV]
Adjust:[****]
2) Adj item:
[NvL NDEV]→
[NvL’ NDEV]→
[NvC NDEV]→
[NvH’ NDEV]→
[NvH NDEV]
Adjust:[****]
PTT : ON
Press [ ] key to store
the adjustment value.
1) Adj item:[An ADEV]
5. Analog
Deviation
Adjust:[****]
2) Adj item:
adjust *2
[AnL ADEV]→
[Narrow]
[AnL’ ADEV]→
[AnC ADEV]→
[AnH’ ADEV]→
[AnH ADEV]
Adjust:[****]
Press [ ] key to store
the adjustment value.
[Wide]
1) Adj item:[Aw ADEV]
Adjust:[****]
2) Adj item:
[AwL ADEV]→
[AwL’ ADEV]→
[AwC ADEV]→
[AwH’ ADEV]→
[AwH ADEV]
Adjust:[****]
Press [ ] key to store
the adjustment value.
PC test mode
Measurement
Testequipment
Unit
1) Adj item:[ Maximum Deviation Panel
meter
Deviation(NXDN
Oscilloscope
Narrow)]
Deviation meter
LPF : 3kHz
HPF : OFF
2) Adj item:[Low]
[Low’]
[Center]
[High’]
[High]
PTT : Press [Transmit]
button.
Press [Apply All] button to
store the adjustment value.
1) Adj item:[ Maximum
Deviation(NXDN
Very Narrow)]
2) Adj item:[Low]
[Low’]
[Center]
[High’]
[High]
PTT : Press [Transmit]
button.
Press [Apply All] button to
store the adjustment value.
1) Adj item:[ Maximum
Deviation(Analog
Narrow)]
2) Adj item:[Low]
[Low’]
[Center]
[High’]
[High]
Press [Apply All] button to
store the adjustment value.
Terminal
ANT
1) Adj item:[ Maximum
Deviation(Analog
Wide)]
2) Adj item:[Low]
[Low’]
[Center]
[High’]
[High]
Press [Apply All] button to
store the adjustment value.
*2: Refer to the “Mode, Signaling, Necessary adjustment and order” table on page 46.
Adjustment
Unit
Panel
Parts
Method
[Panel 3056Hz
tuning
mode]
[
],
[
]
[PC test
mode]
[ ],[ ]
1337Hz
Specifications/
Remarks
2995~3117Hz
[PC test mode]
Press [Apply All]
button to store the
adjustment value
after all
adjustment point
was adjusted.
1311~1363Hz
[PC test mode]
Press [Apply All]
button to store the
adjustment value
after all
adjustment point
was adjusted.
Write the same
adjustment value of
“NXDN Deviation
[Narrow]” for each
adjustment point.
Transmit at each
adjustment point and
check that the Analog
deviation is between
2050Hz and 2150Hz.
Deviation meter
LPF: 15kHz
HPF: OFF
[Panel tuning mode]
PTT: ON
[PC test mode]
PTT: Press
[Transmit] button
Write the same
adjustment value of
“NXDN Deviation
[Narrow]” for each
adjustment point.
Transmit at each
adjustment point and
check that the Analog
deviation is between
4150Hz and 4250Hz.
Deviation meter
LPF: 15kHz
HPF: OFF
[Panel tuning mode]
PTT: ON
[PC test mode]
PTT: Press
[Transmit] button
2050~2150Hz
[PC test mode]
Press [Apply All]
button to store the
adjustment value
after all
adjustment point
was adjusted.
4150~4250Hz
[PC test mode]
Press [Apply All]
button to store the
adjustment value
after all
adjustment point
was adjusted.
43
NX-300
ADJUSTMENT
Condition
Item
Panel tuning mode
6. QT Deviation 1) Adj item:[An QT]
Adjust:[****]
adjust *2
Deviation meter
LPF : 3kHz
[Narrow]
HPF : OFF
PTT : ON
Press [ ] key to store
the adjustment value.
[Wide]
1) Adj item:[Aw QT]
Adjust:[****]
PTT : ON
Press [ ] key to store
the adjustment value.
7. DQT
Deviation
adjust *2
1) Adj item:[An DQT]
Adjust:[****]
Deviation meter
LPF : 3kHz
HPF : OFF
PTT : ON
Press [ ] key to store
the adjustment value.
[Narrow]
[Wide]
1) Adj item:[Aw DQT]
Adjust:[****]
PTT : ON
Press [ ] key to store
the adjustment value.
8. LTR
Deviation
adjust *2
1) Adj item:[An LTR]
Adjust:[****]
Deviation meter
LPF : 3kHz
HPF : OFF
PTT : ON
Press [ ] key to store
the adjustment value.
[Narrow]
[Wide]
1) Adj item:[Aw LTR]
Adjust:[****]
PTT : ON
Press [ ] key to store
the adjustment value.
PC test mode
Measurement
Testequipment
Unit
1) Adj item:[QT Deviation Deviation Panel
(Analog Narrow)]
meter
Oscilloscope
Deviation meter
LPF : 3kHz
HPF : OFF
PTT : Press [Transmit]
button.
Press [Apply] button to
store the adjustment value.
1) Adj item:[QT Deviation
(Analog Wide)]
PTT : Press [Transmit]
button.
Press [Apply] button to
store the adjustment value.
1) Adj item:[DQT
Deviation (Analog
Narrow)]
Deviation meter
LPF : 3kHz
HPF : OFF
PTT : Press [Transmit]
button.
Press [Apply] button to
store the adjustment value.
1) Adj item:[DQT
Deviation (Analog
Wide)]
PTT : Press [Transmit]
button.
Press [Apply] button to
store the adjustment value.
1) Adj item:[LTR
Deviation (Analog
Narrow)]
Deviation meter
LPF : 3kHz
HPF : OFF
PTT : Press [Transmit]
button.
Press [Apply] button to
store the adjustment value.
1) Adj item:[LTR
Deviation (Analog
Wide)]
PTT : Press [Transmit]
button.
Press [Apply] button to
store the adjustment value.
Terminal
ANT
*2: Refer to the “Mode, Signaling, Necessary adjustment and order” table on page 46.
44
Adjustment
Unit
Parts
Panel
[Panel
tuning
mode]
[
],
[
]
Method
Write the value as
followings.
513 (Reference
value)
Specifications/
Remarks
0.35kHz± 0.05kHz
[PC test
mode]
[ ],[ ]
0.75kHz± 0.05kHz
Write the value as
followings.
415 (Reference
value)
0.35kHz± 0.05kHz
0.75kHz± 0.05kHz
Write the value as
followings.
465 (Reference
value)
0.75kHz± 0.05kHz
1.00kHz± 0.05kHz
NX-300
ADJUSTMENT
Condition
Item
9. DTMF
Deviation
adjust *2
Panel tuning mode
PC test mode
Measurement
Testequipment
Unit
1) Adj item:[An DTMF] 1) Adj item:[DTMF
Deviation Panel
Adjust:[****]
Deviation (Analog
meter
Oscilloscope
Deviation meter
Narrow)]
LPF : 15kHz
Deviation meter
[Narrow]
HPF : OFF
LPF : 15kHz
PTT : ON
HPF : OFF
Press [ ] key to store PTT : Press [Transmit]
the adjustment value. button.
Press [Apply] button to
store the adjustment value.
[Wide]
1) Adj item:[Aw DTMF] 1) Adj item:[DTMF
Adjust:[****]
Deviation (Analog
PTT : ON
Wide)]
Press [ ] key to store PTT : Press [Transmit]
the adjustment value. button.
Press [Apply] button to
store the adjustment value.
10.TONE
1) Adj item:[An TONE] 1) Adj item:[Single
Deviation
Tone Deviation
Adjust:[****]
adjust *2
Deviation meter
(Analog Narrow)]
Deviation meter
LPF : 15kHz
[Narrow]
LPF : 15kHz
HPF : OFF
PTT : ON
HPF : OFF
Press [ ] key to store PTT : Press [Transmit]
the adjustment value. button.
Press [Apply] button to
store the adjustment value.
[Wide]
1) Adj item:[Aw TONE] 1) Adj item:[Single
Adjust:[****]
Tone Deviation
PTT : ON
(Analog Wide)]
Press [ ] key to store PTT : Press [Transmit]
the adjustment value. button.
Press [Apply] button to
store the adjustment value.
11.MSK
1) Adj item:[An MSK] 1) Adj item:[MSK
Deviation
Adjust:[****]
Deviation (Analog
adjust *2
Deviation meter
Narrow)]
LPF : 15kHz
Deviation meter
[Narrow]
HPF : OFF
LPF : 15kHz
PTT : ON
HPF : OFF
Press [ ] key to store PTT : Press [Transmit]
the adjustment value. button.
Press [Apply] button to
store the adjustment value.
[Wide]
1) Adj item:[Aw MSK] 1) Adj item:[MSK
Adjust:[****]
Deviation (Analog
PTT : ON
Wide)]
Press [ ] key to store PTT : Press [Transmit]
the adjustment value. button.
Press [Apply] button to
store the adjustment value.
12.CWID
1) Adj item:[Nv CWID] 1) Adj item:[CW ID
Deviation
Adjust:[****]
Deviation (NXDN
adjust *2
Deviation meter
Very Narrow)]
LPF : 15kHz
Deviation meter
[Very Narrow]
HPF : OFF
LPF : 15kHz
PTT : ON
HPF : OFF
Press [ ] key to store PTT : Press [Transmit]
the adjustment value. button.
Press [Apply] button to
store the adjustment value.
Terminal
ANT
Adjustment
Unit
Parts
Panel
[Panel
tuning
mode]
[
],
[
]
Method
Write the value as
followings.
540 (Reference
value)
Specifications/
Remarks
1.25kHz±0.05kHz
[PC test
mode]
[ ],[ ]
2.50kHz±0.05kHz
Write the value as
followings.
513 (Reference
value)
1.50kHz±0.05kHz
3.00kHz±0.05kHz
Write the value as
followings.
513 (Reference
value)
1.50kHz±0.05kHz
3.00kHz±0.05kHz
Write the value as
followings.
376 (Reference
value)
1.00kHz±0.10kHz
*2: Refer to the “Mode, Signaling, Necessary adjustment and order” table on page 46.
45
NX-300
ADJUSTMENT
Condition
Item
13.VOX 1
adjust
14.VOX 10
adjust
15.BATT
detection
writing
Panel tuning mode
Measurement
PC test mode
Testequipment
Unit
Terminal
1) Adj item:[VOX1]
1) Adj item:[VOX1]
AG
AG : 1kHz/45mV at
Adjust:[***]
AG : 1kHz/45mV at
MIC terminal
MIC terminal
1) Adj item:[VOX10] 1) Adj item:[VOX10]
Adjust:[***]
AG : 1kHz/3mV at
AG : 1kHz/3mV at
MIC terminal
MIC terminal
Panel
Universal
connector
1) Adj item:[BATT]
Adjust:[***]
PTT : ON
Panel
1) Adj item:[Battery
Power
Warning Level]
meter
PTT : Press [Transmit] DVM
button.
Adjustment
Unit
Parts
ANT
BATT
terminal
Specifications/
Remarks
Method
[Panel tuning mode]
After apply signal
from AG, press [ ]
key to store the
adjustment value.
[PC test mode]
After apply signal from
AG, press [Apply]
button to store the
adjustment value.
Press the PTT switch
or [Transmit] button
on the PC window.
Apply 6.20V to
battery terminal.
Confirm that one
pre-determined
numeric in the range
1 to 256 appears.
[Panel tuning mode]
Press [ ] key to store
the adjustment value.
16.BATT
detection
check
[PC test mode]
Press [Apply] button
to store the
adjustment value.
Check
The transceiver
can transmit
without causing
the LED to blink.
[Panel test mode]
1) Test Channel
1) CH-Sig : 1-1
Channel : 1
BATT terminal voltage
Test Signaling
: 6.0V
Mode : Analog
PTT : ON
Signaling : 1
BATT terminal voltage
: 6.0V
PTT : Press [Transmit]
button.
■ Mode, Signaling, Necessary adjustment and order
Mode
Signaling
Analog
Audio
QT
DQT
LTR
DTMF
2TONE
MSK
(FleetSync)
Wide
1. Balance adjust
2. Analog Deviation adjust [Wide]
1. Balance adjust
2. Analog Deviation adjust [Wide]
3. QT Deviation adjust [Wide]
1. Balance adjust
2. Analog Deviation adjust [Wide]
3. DQT Deviation adjust [Wide]
1. Balance adjust
2. Analog Deviation adjust [Wide]
3. LTR Deviation adjust [Wide]
1. Balance adjust
2. Analog Deviation adjust [Wide]
3. DTMF Deviation adjust [Wide]
1. Balance adjust
2. Analog Deviation adjust [Wide]
3. TONE Deviation adjust [Wide]
1. Balance adjust
2. Analog Deviation adjust [Wide]
3. MSK Deviation adjust [Wide]
NXDN
-
46
Necessary adjustment and order
Narrow
1. Balance adjust
2. Analog Deviation adjust [Narrow]
1. Balance adjust
2. Analog Deviation adjust [Narrow]
3. QT Deviation adjust [Narrow]
1. Balance adjust
2. Analog Deviation adjust [Narrow]
3. DQT Deviation adjust [Narrow]
1. Balance adjust
2. Analog Deviation adjust [Narrow]
3. LTR Deviation adjust [Narrow]
1. Balance adjust
2. Analog Deviation adjust [Narrow]
3. DTMF Deviation adjust [Narrow]
1. Balance adjust
2. Analog Deviation adjust [Narrow]
3. TONE Deviation adjust [Narrow]
1. Balance adjust
2. Analog Deviation adjust [Narrow]
3. MSK Deviation adjust [Narrow]
1. Balance adjust
2. NXDN Deviation adjust [Narrow]
Very Narrow
-
-
-
-
-
1. Balance adjust
2. NXDN Deviation adjust [Very Narrow]
3. CWID Deviation adjust [Very Narrow]
NX-300
ADJUSTMENT
Receiver Section
Panel tuning mode
PC test mode
[Panel test mode]
1) Test Channel
1) CH-Sig : 1-1
Channel : 1
Test Signaling
SSG output : -47dBm
(1mV)
Mode : Analog
Signaling : 1
(MOD:1kHz/±1.5kHz)
SSG output : -47dBm
(1mV)
(MOD:1kHz/± 1.5kHz)
2. Sensitivity 1 1) Adj item:[SENS1] 1) Adj item:[Sensitivity 1]
adjust
Adjust:[***]
2) Adj item:[Low]
2) Adj item:
[Low’]
[L SENS1]→
[Center]
[L’ SENS1]→
[High’]
[C SENS1]→
[High]
[H’ SENS1]→
Press [Apply All] button to
[H SENS1]
store the adjustment value.
Adjust:[***]
Press [ ] key to store
the adjustment value.
1. AF level
setting
3. Sensitivity 2 1) Adj item:[SENS2]
adjust
Adjust:[***]
2) Adj item:
[L SENS2]→
[L’ SENS2]→
[C SENS2]→
[H’ SENS2]
Adjust:[***]
SSG output :
-90dBm (7.08µV)
(MOD:1kHz/± 1.5kHz)
Press [ ] key to store
the adjustment value.
Measurement
Testequipment
Unit
SSG
DVM
AF VTVM
Dummy
load
Panel
1) Adj item:[Sensitivity 2] SSG
Panel
2) Adj item:[Low]
AF VTVM
[Low’]
Oscilloscope
[Center]
[High’]
SSG output :
-90dBm (7.08µV)
(MOD:1kHz /± 1.5kHz)
Press [Apply All] button to
store the adjustment value.
Terminal
Adjustment
Unit
ANT
Panel
Universal
connector
Panel
ANT
Universal
connector
Parts
Method
Volume Turn the Volume
knob to obtain
knob
0.63V AF output.
[Panel
tuning
mode]
[
],
[
]
Specifications/
Remarks
0.63V± 0.1V
Write the value as
followings.
[L SENS1] / [Low]
: 120
[L’ SENS1] / [Low’]
[PC test : 135
mode] [C SENS1] / [Center]
[ ],[ ] : 145
[H’ SENS1] / [High’]
: 160
[H SENS1] / [High]
: 173
The sub LCD display
shows the RSSI value.
Change the
adjustment value to
get maximum RSSI
value.
(Refer to below)
The value of the
sub LCD display
Condition
Item
NX-300
Adj Point
1
256
Adjustment value
3) Adj item:[H SENS2] 3) Adj item:[High]
Adjust:[***]
Press [Apply All] button to
Press [ ] key to store store the adjustment value.
the adjustment value.
Write the value as
followings.
[H SENS2] / [High]
: 245
47
NX-300
ADJUSTMENT
Condition
Item
4. RSSI
reference
adjust *3
Panel tuning mode
1) Adj item:[An RRSSI]
Adjust:[***]
2) Adj item:
[AnL RRSSI]→
[Analog
[AnL’ RRSSI]→
Narrow]
[AnC RRSSI]→
[AnH’ RRSSI]→
[AnH RRSSI]
Adjust:[***]
SSG output :
12dB SINAD level -3dB
(MOD:1kHz/± 1.5kHz)
[Analog
1) Adj item:[Aw RRSSI]
Wide]
Adjust:[***]
2) Adj item:
[AwL RRSSI]→
[AwL’ RRSSI]→
[AwC RRSSI]→
[AwH’ RRSSI]→
[AwH RRSSI]
Adjust:[***]
SSG output :
12dB SINAD level -3dB
(MOD:1kHz/± 3kHz)
[NXDN Very 1) Adj item:[Nv RRSSI]
Adjust:[***]
Narrow]
2) Adj item:
[NvL RRSSI]→
[NvL’ RRSSI]→
[NvC RRSSI]→
[NvH’ RRSSI]→
[NvH RRSSI]
Adjust:[***]
SSG output :
12dB SINAD level for
Analog Narrow -3dB
(MOD:1kHz/± 1.5kHz)
PC test mode
Measurement
Testequipment
Unit
Terminal
1) Adj item:[RSSI
SSG
Panel
Reference(Analog AF VTVM
Narrow)]
Oscilloscope
2) Adj item:[Low]
[Low’]
[Center]
[High’]
[High]
SSG output :
12dB SINAD level -3dB
(MOD:1kHz /± 1.5kHz)
ANT
Universal
connector
Adjustment
Unit
Parts
Method
[Panel tuning mode]
After input signal
from SSG, press [ ]
key to store the
adjustment value.
[PC test mode]
After input signal
from SSG, press
[Apply] button to
store the
adjustment value.
1) Adj item:[RSSI
Reference(Analog
Wide)]
2) Adj item:[Low]
[Low’]
[Center]
[High’]
[High]
SSG output :
12dB SINAD level -3dB
(MOD : 1kHz /± 3kHz)
1) Adj item:[RSSI
Reference (NXDN
Very Narrow)]
2) Adj item:[Low]
[Low’]
[Center]
[High’]
[High]
SSG output :
12dB SINAD level for
Analog Narrow -3dB
(MOD:1kHz/± 1.5kHz)
*3: The “RSSI reference adjust” of NXDN Narrow is common with the “RSSI reference adjust [Analog Narrow]”.
48
Specifications/
Remarks
NX-300
ADJUSTMENT
Condition
Item
5. Squelch
(Open)
adjust *4
Panel tuning mode
1) Adj item:[An SQL]
Adjust:[***]
2) Adj item:
[AnL SQL]→
[Analog
[AnL’ SQL]→
Narrow]
[AnC SQL]→
[AnH’ SQL]→
[AnH SQL]
Adjust:[***]
SSG output :
12dB SINAD level +1dB
(MOD:1kHz/± 1.5kHz)
[Analog
1) Adj item:[Aw SQL]
Adjust:[***]
Wide]
2) Adj item:
[AwL SQL]→
[AwL’ SQL]→
[AwC SQL]→
[AwH’ SQL]→
[AwH SQL]
Adjust:[***]
SSG output :
12dB SINAD level +1dB
(MOD:1kHz/± 3kHz)
[NXDN Very 1) Adj item:[Nv SQL]
Narrow]
Adjust:[***]
2) Adj item:
[NvL SQL]→
[NvL’ SQL]→
[NvC SQL]→
[NvH’ SQL]→
[NvH SQL]
Adjust:[***]
SSG output :
12dB SINAD level for
Analog Narrow -4dB
(MOD:400Hz/±1.1kHz)
PC test mode
Measurement
Testequipment
Unit
Terminal
1) Adj item:[Open
SSG
Panel
Squelch (Analog
AF VTVM
Narrow)]
Oscilloscope
2) Adj item:[Low]
[Low’]
[Center]
[High’]
[High]
SSG output :
12dB SINAD level +1dB
(MOD:1kHz/± 1.5kHz)
ANT
Universal
connector
Adjustment
Unit
Parts
Method
Specifications/
Remarks
[Panel tuning mode]
After input signal
from SSG, press [ ]
key to store the
adjustment value.
[PC test mode]
After input signal
from SSG, press
[Apply] button to
store the
adjustment value.
1) Adj item:[Open
Squelch (Analog
Wide)]
2) Adj item:[Low]
[Low’]
[Center]
[High’]
[High]
SSG output :
12dB SINAD level +1dB
(MOD:1kHz /± 3kHz)
1) Adj item:[Open
Squelch (NXDN
Very Narrow)]
2) Adj item:[Low]
[Low’]
[Center]
[High’]
[High]
SSG output :
12dB SINAD level for
Analog Narrow -4dB
(MOD:400Hz/± 1.1kHz)
*4: The “Squelch (Open) adjust” of NXDN Narrow is common with the “Squelch (Open) adjust [Analog Narrow]”.
49
NX-300
ADJUSTMENT
Condition
Item
6. RSSI at
-118dBm
adjust *5
Panel tuning mode
1) Adj item:[An LRSSI]
Adjust:[***]
2) Adj item:
[AnL LRSSI]→
[Analog
[AnL’ LRSSI]→
Narrow]
[AnC LRSSI]→
[AnH’ LRSSI]→
[AnH LRSSI]
Adjust:[***]
SSG output :
-118dBm (0.28µV)
(MOD:1kHz/± 1.5kHz)
[Analog
1) Adj item:[Aw LRSSI]
Wide]
Adjust:[***]
2) Adj item:
[AwL LRSSI]→
[AwL’ LRSSI]→
[AwC LRSSI]→
[AwH’ LRSSI]→
[AwH LRSSI]
Adjust:[***]
SSG output :
-118dBm (0.28µV)
(MOD:1kHz/± 3kHz)
[NXDN Very 1) Adj item:[Nv LRSSI]
Adjust:[***]
Narrow]
2) Adj item:
[NvL LRSSI]→
[NvL’ LRSSI]→
[NvC LRSSI]→
[NvH’ LRSSI]→
[NvH LRSSI]
Adjust:[***]
SSG output :
-118dBm (0.28µV)
(MOD:1kHz/± 1.5kHz)
PC test mode
Measurement
Testequipment
Unit
Terminal
1) Adj item:[Low RSSI SSG
Panel
(Analog Narrow)]
AF VTVM
2) Adj item:[Low]
Oscilloscope
[Low’]
[Center]
[High’]
[High]
SSG output : -118dBm
(0.28µV)
(MOD:1kHz/± 1.5kHz)
ANT
Universal
connector
Adjustment
Unit
Parts
Method
[Panel tuning mode]
After input signal
from SSG, press [ ]
key to store the
adjustment value.
[PC test mode]
After input signal
from SSG, press
[Apply] button to
store the
adjustment value.
1) Adj item:[Low RSSI
(Analog Wide)]
2) Adj item:[Low]
[Low’]
[Center]
[High’]
[High]
SSG output : -118dBm
(0.28µV)
(MOD:1kHz/±3kHz)
1) Adj item:[Low RSSI
(NXDN Very Narrow)]
2) Adj item:[Low]
[Low’]
[Center]
[High’]
[High]
SSG output : -118dBm
(0.28µV)
(MOD:1kHz/± 1.5kHz)
*5: The “RSSI at -118dBm adjust” of NXDN Narrow is common with the “RSSI at -118dBm adjust [Analog Narrow]”.
50
Specifications/
Remarks
NX-300
ADJUSTMENT
Condition
Item
Panel tuning mode
1) Adj item:[An HRSSI]
Adjust:[***]
2) Adj item:
[AnL HRSSI]→
[Analog
[AnL’ HRSSI]→
Narrow]
[AnC HRSSI]→
[AnH’ HRSSI]→
[AnH HRSSI]
Adjust:[***]
SSG output : -80dBm
(22.4µV)
(MOD:1kHz/± 1.5kHz)
[Analog
1) Adj item:[Aw HRSSI]
Wide]
Adjust:[***]
2) Adj item:
[AwL HRSSI]→
[AwL’ HRSSI]→
[AwC HRSSI]→
[AwH’ HRSSI]→
[AwH HRSSI]
Adjust:[***]
SSG output : -80dBm
(22.4µV)
(MOD:1kHz/± 3kHz)
[NXDN Very 1) Adj item:[Nv HRSSI]
Adjust:[***]
Narrow]
2) Adj item:
[NvL HRSSI]→
[NvL’ HRSSI]→
[NvC HRSSI]→
[NvH’ HRSSI]→
[NvH HRSSI]
Adjust:[***]
SSG output : -80dBm
(22.4µV)
(MOD:1kHz/± 1.5kHz)
1) Adj item:[An SQLT]
8. Squelch
(Tight)
Adjust:[***]
2) Adj item:
adjust
[AnL SQLT]→
[Analog
[AnL’ SQLT]→
Narrow]
[AnC SQLT]→
[AnH’ SQLT]→
[AnH SQLT]
Adjust:[***]
SSG output :
12dB SINAD level +6dB
(MOD:1kHz/± 1.5kHz)
[Analog
1) Adj item:[Aw SQLT]
Wide]
Adjust:[***]
2) Adj item:
[AwL SQLT]→
[AwL’ SQLT]→
[AwC SQLT]→
[AwH’ SQLT]→
[AwH SQLT]
Adjust:[***]
SSG output :
12dB SINAD level +6dB
(MOD:1kHz/± 3kHz)
7. RSSI at
-80dBm
adjust *6
PC test mode
Measurement
Testequipment
Unit
Terminal
1) Adj item:[High RSSI SSG
Panel
AF VTVM
(Analog Narrow)]
Oscilloscope
2) Adj item:[Low]
[Low’]
[Center]
[High’]
[High]
SSG output : -80dBm
(22.4µV)
(MOD:1kHz/± 1.5kHz)
ANT
Universal
connector
Adjustment
Unit
Parts
Method
Specifications/
Remarks
[Panel tuning mode]
After input signal
from SSG, press [ ]
key to store the
adjustment value.
[PC test mode]
After input signal
from SSG, press
[Apply] button to
store the
adjustment value.
1) Adj item:[High RSSI
(Analog Wide)]
2) Adj item:[Low]
[Low’]
[Center]
[High’]
[High]
SSG output : -80dBm
(22.4µV)
(MOD:1kHz/±3kHz)
1) Adj item:[High RSSI
(NXDN Very Narrow)]
2) Adj item:[Low]
[Low’]
[Center]
[High’]
[High]
SSG output : -80dBm
(22.4µV)
(MOD:1kHz/± 1.5kHz)
1) Adj item:[Tight
Squelch (Analog
Narrow)]
2) Adj item:[Low]
[Low’]
[Center]
[High’]
[High]
SSG output :
12dB SINAD level +6dB
(MOD:1kHz/± 1.5kHz)
1) Adj item:[Tight
Squelch (Analog
Wide)]
2) Adj item:[Low]
[Low’]
[Center]
[High’]
[High]
SSG output :
12dB SINAD level +6dB
(MOD:1kHz /± 3kHz)
*6: The “RSSI at -80dBm adjust” of NXDN Narrow is common with the “RSSI at -80dBm adjust [Analog Narrow]”.
51
NX-300
TERMINAL FUNCTION
Control unit (X53-4260-XX)
Pin No.
Name
I/O
Function
CN1
1
/CS
O
Name
I/O
Function
9
+B
O
Power output after passing through the fuse
10
SB1
I
Power input after power switch
LED_G
O
Green LED control output
CN404
Chip select output
2
/RES
O
LCD reset output
1
3
AO
O
Address bus 0 output
2
/EMG
O
Key matrix output (Emergency (Orange) key)
LED_R
O
Red LED control output
4
/WR
O
WR bus output
3
5
D0
I/O
Data bus 0
4
IFC
O
50IF switch control output
/SAVE
O
50C Reg. control output
6
D1
I/O
Data bus 1
5
7
D2
I/O
Data bus 2
6
I2CCK
O
TCXO thermometer clock output
/5TC
O
50T Reg./switch control output
8
D3
I/O
Data bus 3
7
9
D4
I/O
Data bus 4
8
I2CSDA
I
TCXO thermometer data input
SBC
O
SB3 switch control output
10
D5
I/O
Data bus 5
9
11
D6
I/O
Data bus 6
10
/T_R
O
TX/RX control output
TV2
O
RX tuning voltage 2 control output
12
D7
I/O
Data bus 7
11
13
VDD
O
3.3V LCD power supply output
12
ASSIST
O
VCO tuning voltage control output
TV1
O
RX tuning voltage 1 control output
14
VSS
-
GND
13
15
VDD
O
3.3V LCD power supply output
14
VAGC
I
AGC voltage input
5RC
O
50R switch control output
16
V1
-
LCD drive power supply
15
17
V2
-
LCD drive power supply
16
TCXO_MOD
O
TCXO modulation output
PGND
-
GND
18
V3
-
LCD drive power supply
17
19
V4
-
LCD drive power supply
18
RSSI
I
RSSI voltage input
LCD drive power supply
19
PGND
-
GND
20
CV
I
CV voltage input
AGND
-
GND
20
V5
O
CN23
1
ME
-
Internal MIC GND
21
2
EMC
I
Internal MIC input
22
NC
-
No connection
NC
-
No connection
3
SP+
O
BTL output + for internal speaker
23
4
SP+
O
BTL output + for internal speaker
24
+B
I
Power input after passing through the fuse
+B
I
Power input after passing through the fuse
5
SP-
O
BTL output - for internal speaker
25
6
SP-
O
BTL output - for internal speaker
26
+B
I
Power input after passing through the fuse
+B
I
Power input after passing through the fuse
7
6_/KEYI1
I
Key matrix input (KEYI1 for 6-key)
27
8
6_/KEYO2
O
Key matrix output (KEYO2 for 6-key)
28
NC
-
No connection
NC
-
No connection
9
BL_SB
O
LCD backlight voltage output
29
10
6_/KEYO0
O
Key matrix output (KEYO0 for 6-key)
30
AGND
-
GND
PTT
I
PTT input
11
6_/KEYO1
O
Key matrix output (KEYO1 for 6-key)
31
12
BL_SB
O
LCD backlight voltage output
32
Side_G
O
Key matrix output (SIDE1,2 key)
Side_1
I
Key matrix input (SIDE1 key)
13
6_/KEYI0
I
Key matrix input (KEYI0 for 6-key)
33
14
AGND
-
GND
34
W/N
O
W/N control output
35
SDO1
O
PLL serial data output
CN403
1
33A
O
3.3V for volume level
36
Side_2
I
Key matrix input (SIDE2 key)
/PCS_RF
O
PLL enable output
2
VOL_GND
-
GND for volume level
37
3
VOL
I
Volume level input for audio control
38
/DSW
O
APC voltage discharge switch control output
APC
O
APC control output
4
EN3
I
Encoder pulse input
39
5
AGND
-
GND
40
/APCSW
O
APC switch control output
VCO_MOD
O
VCO modulation output
6
EN4
I
Encoder pulse input
41
7
EN1
I
Encoder pulse input
42
THP
I
Thermistor voltage input
Encoder pulse input
43
PLD
I
PLL lock detect input
8
52
Pin No.
EN2
I
NX-300
TERMINAL FUNCTION
Pin No.
Name
I/O
Function
Pin No.
Name
I/O
Function
44
RFAGC
O
RF AGC control output
22
RXEO
O
45
SCK1
O
PLL clock output
23
RXEI
I
Refer to “CN710 26-pin
46
GND
-
GND
24
TXI
I
connector specification”
47
S_DET
I
Battery select input
25
OPT6
O
described on pages 56 to 59.
26
POW
O
48
GND
-
GND
49
NC
-
No connection
50
IF_DET
I
IF input
CN405
TX-RX unit (X57-7370-10 A/2)
Pin No.
Name
I/O
Function
1
SSW
I
EXT/INT speaker switch input
2
SP+
O
BTL output + for external speaker
1
LED_G
I
Green LED control input
3
SP-
O
BTL output - for external speaker
2
/EMG
I
Key matrix input (Emergency (Orange) key)
4
MSW
I
EXT/INT MIC switch input
3
LED_R
I
Red LED control input
5
EMC
I
External MIC input
4
IFC
I
50IF switch control input
6
ME
-
External MIC GND
5
/SAVE
I
50C Reg. control input
7
PTT
I
External PTT input
6
I2CCK
I
TCXO thermometer clock input
8
PF
I
Programmable function key input
7
/5TC
I
50T Reg./switch control input
9
OPT
Option interface I/O
8
I2CSDA
O
TCXO thermometer data output
10
E
-
GND
9
SBC
I
SB3 switch control input
11
5V
O
5V output
10
/T_R
I
TX/RX control input
12
TXD
O
Serial data output
11
TV2
I
RX tuning voltage 2 control input
13
RXD
I
Serial data input
12
ASSIST
I
VCO tuning voltage control input
14
NC
-
No connection
13
TV1
I
RX tuning voltage 1 control input
14
VAGC
O
AGC voltage output
15
5RC
I
50R switch control input
16
TCXO_MOD
I
TCXO modulation input
I/O
CN701 (for production)
1~20
CN710
CN900
1
OPT1
I/O
17
GND
-
GND
2
OPT3
I/O
18
RSSI
O
RSSI voltage output
3
26P_RD
I
19
GND
-
GND
4
26P_TD
O
20
CV
O
CV voltage output
5
NC
-
21
GND
-
GND
6
OPT4
O
22
NC
-
No connection
7
OPT10
O
23
NC
-
No connection
8
OPT5
O
24
+B
O
Power output after passing through the fuse
9
AGND
-
25
+B
O
Power output after passing through the fuse
10
AGND
-
Refer to “CN710 26-pin
26
+B
O
Power output after passing through the fuse
11
AI
I
connector specification”
27
+B
O
Power output after passing through the fuse
12
AO
O
described on pages 56 to 59.
28
NC
-
No connection
13
AGND
-
29
NC
-
No connection
14
5V
O
30
GND
-
GND
15
OPT9
I
31
PTT
O
PTT output
16
DTI
I
32
Side_G
I
Key matrix input (SIDE1,2 key)
17
OPT8
I/O
33
Side_1
O
Key matrix output (SIDE1 key)
18
OPT11
O
34
W/N
I
No connection (Test pad)
19
OPT7
I/O
35
SDO1
I
PLL serial data input
20
OPT2
I/O
36
Side_2
O
Key matrix output (SIDE2 key)
21
TXO
O
37
/PCS_RF
I
PLL enable input
53
NX-300
TERMINAL FUNCTION
Pin No.
Name
I/O
Option board unit (X57-7370-10 B/2)
Function
38
/DSW
I
APC voltage discharge switch control input
39
APC
I
APC control input
40
/APCSW
I
APC switch control input
1
OPT1
I/O
41
VCO_MOD
I
VCO modulation input
2
OPT3
I/O
42
THP
O
Thermistor voltage output
3
26P_RD
I
43
PLD
O
PLL lock detect output
4
26P_TD
O
44
RFAGC
I
RF AGC control input
5
NC
-
45
SCK1
I
PLL clock input
6
OPT4
O
46
GND
-
GND
7
OPT10
O
47
S_DET
O
Battery select output
8
OPT5
O
48
GND
-
GND
9
DGND
-
49
NC
-
No connection
10
AGND
-
50
IF_DET
O
IF output
11
NC
-
CN901
Pin No.
Name
I/O
Function
CN737
12
NC
-
1
PTT
I
Internal PTT input
13
AGND
-
2
GND
-
GND
14
5V
O
3
Side_G
O
Key matrix output (SIDE1,2 key)
15
OPT9
I
4
Side_1
I
Key matrix input (SIDE1 key)
16
DTI
5
Side_2
I
Key matrix input (SIDE2 key)
17
OPT8
Refer to “CN737 Option board
connector specification”
described on pages 60 to 63.
I
I/O
18
OPT11
O
19
OPT7
I/O
20
OPT2
I/O
21
TXO
O
22
RXEO
O
23
RXEI
I
24
TXI
I
25
OPT6
O
26
POW
O
Solder Pad
Name
I/O
Signal
Type
Rating and Condition
Function
PTT2
O
Digital
PTT output
PTT1
I
Digital
PTT input
Parameter
Min
Typ
Max
Unit
10k
Ω
[Output]
Output Impedance
[Input]
VIH
2.8
3.3
V
VIL
0
0.5
V
VIH
2.8
3.3
V
VIL
0
0.5
V
[Input]
MDSW
GND
TXD
I
-
O
Digital
GND
Digital
Man down switch input
GND
Serial data output
Allowable current value
mA
VOH(Io=-5mA)
4.0
-
5.3
V
VOL(Io=5mA)
0
-
0.8
V
19200
bps
VIH
2.8
-
5.3
V
VIL
0
-
0.8
V
19200
bps
10k
Ω
Baud Rate
RXD
I
Digital
Serial data input
RSSI
O
Analog
RSSI output
Baud Rate
54
Output Impedance
NX-300
TERMINAL FUNCTION
Universal connector
Pin No.
Name
I/O
1
SSW
I
Signal
EXT/INT speaker switch input.
Digital
Rating and Condition
Function
Type
L: External speaker ON
H: Internal speaker ON
Parameter
Min
Typ
Max
Unit
VIH
2.8
-
5.3
V
VIL
0
-
0.7
V
1.3
1.8
W
3000
Hz
1.4
W
[ 8Ω load ]
Max output power
2
SP+
O
Analog BTL output + for external speaker.
(1kHz, Batt=7.5V)
DC Bias
Allowable Frequency
2.5
300
V
[ 16Ω load ]
Max output power
3
SP-
O
Analog BTL output + for external speaker.
0.9
(1kHz, Batt=7.5V)
DC Bias
2.5
Allowable Frequency
300
L: External MIC ON
VIH
2.8
H: Internal MIC ON
VIL
0
7.7
V
3000
Hz
-
5.3
V
-
0.5
V
12.5
17.3
mV
3000
Hz
-
kΩ
EXT/INT MIC switch input.
4
MSW
I
Digital
Audio Level
(STD deviation)
5
EMC
I
Analog External MIC input.
DC Bias
Allowable Frequency
Input impedance
6
ME
-
-
7
PTT
I
Digital
8
PF
I
VIH
2.8
-
5.3
V
VIL
0
-
0.7
V
V (PF2 key ON)
2.2
-
2.8
V
Analog Programmable function key input. V (PF1 key ON)
1.7
-
2.2
V
I
Digital
10
E
-
-
11
5V
-
Power
O
1.8
External MIC GND
L: PTT ON
OPT
TXD
-
Digital
V (PF1, PF2 key ON)
1.3
-
1.7
V
Man down input
VIH
2.8
-
5.3
V
Programmable active H/L
VIL
0
-
0.7
V
4.9
5.0
5.1
V
GND
5V power supply output
Output Voltage
(Output control is FPU
(Iout = 100mA)
programmable)
Maximum Current
Serial data output.
-
-
0.2
A
VOH (Io=-5mA)
4.0
-
5.3
V
VOL (Io=5mA)
0
-
Baud Rate
13
RXD
I
Digital
Serial data input.
NC
-
-
0.8
V
19200
bps
VIH
2.8
-
5.3
V
VIL
0
-
0.8
V
115200
bps
Baud Rate
14
V
External PTT input.
9
12
3.3
300
Not used
(reserved for future option)
55
NX-300
TERMINAL FUNCTION
CN710 26-pin connector specification
Pin No.
Name
1
OPT1
6
OPT4
8
OPT5
I/O
Rating and Condition
Signal Type
Parameter
Min
Typ
Max
Unit
[Input]
I/O
Digital
VIH
2.8
3.3
V
VIL
0
0.5
V
VOH
2.8
3.5
V
VOL
0
0.5
V
VIH
2.8
3.3
V
VIL
0
0.5
V
[Output]
17
OPT8
18
OPT11
2
OPT3
19
OPT7
20
OPT2
[Output]
25
OPT6
VOH
2.8
3.5
V
VOL
0
0.5
V
VIH
2.8
3.3
V
VIL
0
[Input]
I/O
Digital
[Input]
3
26P_RD
I
Digital
Baud rate
0.5
V
19200
bps
3.5
V
[Output]
4
26P_TD
O
Digital
VOH
2.8
VOL
0
Baud rate
15
7
11
12
16
56
OPT9
OPT10
AI
AO
DTI
I
O
I
O
I
Analog
Analog/Digital
Analog
Analog
Analog
0.5
V
19200
bps
Input Amplitude (Square wave)
-
3.3
-
Vp-p
Coupling Capacitor
-
0.01
-
uF
Input Impedance
22k
-
-
Ω
Allowable Frequency
300
-
3000
Hz
Output Amplitude (1kHz, 60% deviation)
0.9
1.3
1.7
Vp-p
Coupling Capacitor
0.1
22k
Ω
3000
Hz
0.5
0.7
Vp-p
0.1
-
uF
Output Impedance
Allowable Frequency
300
Input Amplitude (1kHz, 60% deviation)
0.3
-
12k
Coupling Capacitor
Input Impedance
-
Ω
3000
Hz
50
70
mVp-p
0.1
-
uF
Allowable Frequency
300
Output Amplitude (1kHz, 60% deviation)
30
-
35k
Coupling Capacitor
Output Impedance
uF
-
Ω
3000
Hz
1.1
1.4
Vp-p
0.1
-
uF
Allowable Frequency
300
Input Amplitude (1kHz, 60% deviation)
0.8
-
Input Impedance
22k
-
-
Ω
Allowable Frequency
300
-
3000
Hz
Coupling Capacitor
NX-300
TERMINAL FUNCTION
Pin No.
Name
I/O
Signal Type
Rating and Condition
Parameter
Min
Typ
Max
Unit
Output Amplitude (1kHz, 60% deviation)
21
22
23
TXO
RXEO
RXEI
O
O
I
Analog
Analog
Analog
while external MIC
160
260
360
mVp-p
while internal MIC
-
130
-
mVp-p
Coupling Capacitor
-
0.1
-
uF
Output Impedance
-
-
2.2k
Ω
Allowable Frequency
300
Output Amplitude (1kHz, 60% deviation)
450
640
3000
Hz
830
mVp-p
Coupling Capacitor
-
Output Impedance
-
0.1
-
uF
-
2.2k
Ω
Allowable Frequency
300
-
3000
Hz
Input Amplitude (1kHz, 60% deviation)
450
640
830
mVp-p
Coupling Capacitor
0.1
Input Impedance
22k
Allowable Frequency
300
uF
Ω
3000
Hz
Input Amplitude (1kHz, 60% deviation)
24
14
26
TXI
5V
I
O
Analog
Power
POW
O
Power
AGND
-
GND
NC
-
-
9
10
13
5
while external MIC
160
260
360
mVp-p
while internal MIC
-
130
-
mVp-p
Coupling Capacitor
-
0.1
-
uF
Input Impedance
22k
-
-
Ω
Allowable Frequency
300
-
3000
Hz
Output Voltage
5
Output Current
V
78
Output Voltage
7.5
Output Current
Allowable current value
(Total current of 3 pins)
mA
V
100
mA
100
mA
-
57
NX-300
TERMINAL FUNCTION
CN710 26-pin connector specification
Pin No.
Name
Device
I/O
Conection
Function
[COR]
Conv/LTR
L: Not activity receiving
H: Activity receiving
[TOR]
Conv/LTR
L: Not activity receiving
1
OPT1
ANI board
O
Aux Input
H: Activity receiving (Sub Tone or LTR ID is OK)
[LOK]
Conv
L: TX Complete
H: Not TX Complete
LTR
L: TX Link Complete (until TX finishes)
H: Not TX Link Complete
2
3
58
OPT3
26P_RD
4
26P_TD
5
NC
6
OPT4
7
OPT10
8
OPT5
9
AGND
10
AGND
11
AI
12
AO
13
AGND
14
5V
15
OPT9
VGS-1
I
BUSY
ANI board
I
KEY
VGS-1
I
PLAY
ANI board
-
-
BUSY indication
TX requirement input
PLAY indication
-
VGS-1
I
SO
ANI board
-
-
VGS-1
O
SI
-
-
-
ANI board
O
PTT
PTT signal output
VGS-1
O
EN
Enable
ANI board
-
-
VGS-1
O
USEL
ANI board
O
Emergency
VGS-1
O
RST
ANI board
-
A-
VGS-1
-
AGND
ANI board
-
A-
VGS-1
-
AGND
ANI board
-
-
VGS-1
I
AO
ANI board
-
-
VGS-1
O
AI
ANI board
-
A-
VGS-1
-
AGND
ANI board
-
-
VGS-1
O
5C
ANI board
I
Sidetone
VGS-1
-
-
Serial data input
Serial data output
-
UART speed select output
Emergency signal output
Reset output
GND
AGND
GND
AGND
VGS Audio input
VGS Audio output
GND
AGND
Note: POW and 5V can not be used simultaneously.
5V power supply
Sidetone input
-
NX-300
TERMINAL FUNCTION
Pin No.
Name
16
DTI
17
OPT8
18
OPT11
19
OPT7
20
OPT2
21
TXO
22
RXEO
23
RXEI
24
TXI
25
OPT6
26
POW
Device
I/O
Conection
Function
ANI board
I
Data Out
VGS-1
-
-
ANI board
I
Tone Control
VGS-1
-
-
ANI board
O
Man-Down
VGS-1
-
-
ANI board
I
MIC Mute
VGS-1
-
-
ANI board
I
Aux Output
VGS-1
-
-
-
ANI board
-
-
-
VGS-1
-
-
-
ANI board
-
-
-
VGS-1
-
-
-
ANI board
-
-
-
VGS-1
-
-
-
ANI board
-
-
-
VGS-1
-
-
-
ANI board
-
-
-
VGS-1
-
-
-
ANI board
O
A+
VGS-1
-
-
Data signal input
Speaker mute signal input
Man-Down output
MIC mute signal input
Emergency signal input
Switched B output
Note: POW and 5V can not be used simultaneously.
59
NX-300
TERMINAL FUNCTION
CN737 Option board connector specification
Pin No.
Name
1
OPT1
6
OPT4
8
OPT5
I/O
Rating and Condition
Signal Type
Parameter
Min
Typ
Max
Unit
[Input]
I/O
Digital
VIH
2.8
3.3
V
VIL
0
0.5
V
VOH
2.8
3.5
V
VOL
0
0.5
V
VIH
2.8
3.3
V
VIL
0
0.5
V
[Output]
17
OPT8
18
OPT11
2
OPT3
19
OPT7
20
OPT2
[Output]
25
OPT6
VOH
2.8
3.5
V
VOL
0
0.5
V
VIH
2.8
3.3
V
VIL
0
[Input]
I/O
Digital
[Input]
3
26P_RD
I
Digital
Baud rate
0.5
V
19200
bps
3.5
V
[Output]
4
26P_TD
O
Digital
VOH
2.8
VOL
0
Baud rate
15
7
OPT9
OPT10
I
O
Analog
Analog/Digital
-
3.3
-
Vp-p
Coupling Capacitor
-
0.01
-
uF
Input Impedance
22k
-
-
Ω
Allowable Frequency
300
-
3000
Hz
Output Amplitude (1kHz, 60% deviation)
0.9
1.3
1.7
Vp-p
Coupling Capacitor
0.1
Output Impedance
11
NC
-
-
-
12
NC
-
-
Input Amplitude (1kHz, 60% deviation)
DTI
I
Analog
V
bps
Input Amplitude (Square wave)
Allowable Frequency
16
0.5
19200
300
uF
22k
Ω
3000
Hz
0.8
1.1
1.4
Vp-p
-
0.1
-
uF
Input Impedance
22k
-
-
Ω
Allowable Frequency
300
-
3000
Hz
while external MIC
160
260
360
mVp-p
while internal MIC
-
130
-
mVp-p
-
0.1
-
VuF
-
-
Coupling Capacitor
Output Amplitude (1kHz, 60% deviation)
21
TXO
O
Analog
Coupling Capacitor
Output Impedance
Allowable Frequency
60
300
2.2k
Ω
3000
Hz
NX-300
TERMINAL FUNCTION
Pin No.
22
23
Name
RXEO
RXEI
I/O
O
I
Signal Type
Analog
Analog
Rating and Condition
Parameter
Min
Typ
Max
Unit
Output Amplitude (1kHz, 60% deviation)
450
640
830
mVp-p
Coupling Capacitor
-
0.1
-
uF
Output Impedance
-
-
2.2k
Ω
Allowable Frequency
300
-
3000
Hz
Input Amplitude (1kHz, 60% deviation)
450
640
830
mVp-p
Coupling Capacitor
0.1
Input Impedance
22k
Allowable Frequency
300
uF
Ω
3000
Hz
Input Amplitude (1kHz, 60% deviation)
24
14
TXI
5V
I
O
Analog
Power
26
POW
O
Power
9
DGND
-
GND
AGND
-
GND
NC
-
-
10
13
5
while external MIC
160
260
360
mVp-p
while internal MIC
-
130
-
mVp-p
Coupling Capacitor
-
0.1
-
uF
Input Impedance
22k
-
-
Ω
Allowable Frequency
300
-
3000
Hz
Output Voltage
5
Output Current
V
78
Output Voltage
7.5
Output Current
V
100
Allowable current value
(Total current of 3 pins)
mA
mA
mA
100
mA
-
61
NX-300
TERMINAL FUNCTION
CN737 Option board connector specification
Pin No.
Name
Device
I/O
Conection
Function
[COR]
Conv/LTR
L: Not activity receiving
H: Activity receiving
[TOR]
Conv/LTR
L: Not activity receiving
1
OPT1
ANI board
O
Aux Input
H: Activity receiving (Sub Tone or LTR ID is OK)
[LOK]
Conv
L: TX Complete
H: Not TX Complete
LTR
L: TX Link Complete (until TX finishes)
H: Not TX Link Complete
2
3
62
OPT3
26P_RD
4
26P_TD
5
NC
6
OPT4
7
OPT10
8
OPT5
9
DGND
10
AGND
11
12
13
AGND
14
5V
15
OPT9
VGS-1
I
BUSY
ANI board
I
KEY
VGS-1
I
PLAY
ANI board
-
-
BUSY indication
TX requirement input
PLAY indication
-
VGS-1
I
SO
ANI board
-
-
VGS-1
O
SI
-
-
-
ANI board
O
PTT
PTT signal output
VGS-1
O
EN
Enable
ANI board
-
-
VGS-1
O
USEL
ANI board
O
Emergency
VGS-1
O
RST
ANI board
-
A-
VGS-1
-
DGND
Serial data input
Serial data output
-
UART speed select output
Emergency signal output
Reset output
GND
DGND
ANI board
-
A-
VGS-1
-
AGND
NC
-
-
-
-
NC
-
-
-
-
ANI board
-
A-
VGS-1
-
AGND
ANI board
-
-
VGS-1
O
5C
ANI board
I
Sidetone
VGS-1
-
-
GND
AGND
GND
AGND
Note: POW and 5V can not be used simultaneously.
5V power supply
Sidetone input
-
NX-300
TERMINAL FUNCTION
Pin No.
Name
16
DTI
17
OPT8
18
OPT11
19
OPT7
20
OPT2
21
TXO
22
RXEO
23
RXEI
24
TXI
25
OPT6
26
POW
Device
I/O
Conection
Function
ANI board
I
Data Out
VGS-1
-
-
ANI board
I
Tone Control
VGS-1
-
-
ANI board
O
Man-Down
VGS-1
-
-
ANI board
I
MIC Mute
VGS-1
-
-
ANI board
I
Aux Output
VGS-1
-
-
-
ANI board
-
-
-
VGS-1
-
-
-
ANI board
-
-
-
VGS-1
-
-
-
ANI board
-
-
-
VGS-1
-
-
-
ANI board
-
-
-
VGS-1
-
-
-
ANI board
-
-
-
VGS-1
-
-
-
ANI board
O
A+
VGS-1
-
-
Data signal input
Speaker mute signal input
Man-Down output
MIC mute signal input
Emergency signal input
Switched B output
Note: POW and 5V can not be used simultaneously.
63
A
1
B
C
NX-300
D
E
F
G
H
I
J
PC BOARD
CONTROL UNIT (X53-4260-XX) -10: K, -11: K3
Component side view (J79-0131-19)
2
3
S2
1
S3
4
S4
7
S13
*
4
S5
2
S6
5
S7
8
S12
0
6
D1
D2
D5
5
7
D6
D10
D9
8
S8
3
S9
6
S10
9
S11
#
10
Ref. No. Address Ref. No. Address Ref. No. Address
IC1
6K
D4
3Q
D14
7M
IC415
8K
D5
5B
D15
7L
Q1
7K
D6
7B
D16
7L
Q2
7L
D7
10O
D17
9L
Q3
6L
D8
10Q
D18
4L
Q4
4L
D9
7D
D19
4L
Q5
4L
D10
7C
D20
8M
D1
5D
D11
7L
D21
8M
D2
5C
D12
7M
D22
8L
D3
3O
D13
7M
D23
9L
11
12
13
64
14
R848
J79-0131-19
R849
R853
9
J
K
L
M
N
O
P
Q
PC BOARD
R
S
NX-300
CONTROL UNIT (X53-4260-XX) -10: K, -11: K3
Component side view (J79-0131-19)
CN22
D3
1
2
D4
3
C15
D18
G
D19
S
Q4
R20
R22
R23
R24
R26
D
L1
L2
G
S
D
R27 Q5
R21
R25
C16
C17
R40
C13
C14
4
14
1
AGND
6_/KEYI0
BL_SB
6_/KEYO1
6_/KEYO0
BL_SB
6_/KEYO2
6_/KEYI1
SP–
SP–
SP+
SP+
EMC
ME
CN23
C2
R16
C12
R14
TH1
R3
C41
R2
R1
R17
D11
D13
C11
D14
Q2
Q1
L4
C35
C37
R28 C25
C27
L5
C32
L6
R31 C38
L7
R19 C36
R32 C34
R34 C29
C33
1
C40
R11
6
7
R406
8
D21
D20
R35
R33
D22
R30
C24
C26
D12
L3
4 3
C30
C31
5 1
IC415
R500
C23
D16
D15 R18
R483
C10
C452
R29
C28
V5
V4
V3
V2
V1
VDD
VSS
VDD
D7
D6
D5
D4
D3
D2
D1
D0
/WR
AO
/RES
/CS
CN1
1
C1
D
R12
R10
R9
R8
R7
R6
R5
R4
C7
Q3
S
G
IC1
R15
20
C3
3
5
5
C4
C8
4
C6
C5
D23
D17
9
CN24
D7
D8
10
Component side
Layer 1
Layer 2
Layer 3
Layer 4
Layer 5
Layer 6
11
Foil side
12
13
65
14
A
1
B
C
NX-300
D
E
F
G
I
J
PC BOARD
CONTROL UNIT (X53-4260-XX) -10: K, -11: K3
Foil side view (J79-0131-19)
2
R467
R460
C427
R402
D409
R472
R105
R110
R119
R148
R122
R123
C116
CN101
CN102
C101
R185
R172
R180
R432
R160
R161
C106
C105
R192
R190
R181
R183 CN105
C154
C148
R130 CN104
C141
C153
C146
R174
R158
1
L8
IC106
L708
C159
10
6
R470 C428
R463
R138
CN405
3
5
4
3 4
Q411
NC
RXD
TXD
5V
E
OPT
PF
PTT
ME
EMC
MSW
SP–
SP+
SSW
C446
1 6
14
+ C405
+
C157
C156
R157
R187
R156
3
1
R159
4
1
IC107
6
R162 C130
8
R102
C109
R103
C113
R107
R121
C117
R143
R126
R129
R131
C134
R166
4
R111
R113
R115 C107
C104
R116 C112
R118 C111
IC104
4 3
5 1
D102
5
1
1
X102
R165
X101
IC411
5
C143
1
L714
R478
5
+ C404
R491
R477
3
L712
C406
C407
Q404
IC404
L713
C403
4
D
5 1
C102
R101
L717
L705 C158
5
C443
S
L711
IC401
4 1
IC414
G
Q413 R438
R492
9
8
R117
C103
IC102
D415
IC403
R493
2
3 4
1
C453 C464 R546
C408
R409
3
3
Q402
1 6
R128
R127
IC109
4 3
IC417
IC418
R454 R451 C466
Q403
R444
R132
R140
R139
R193
C120
R137
R145
R142
C121
R141 R135
C119
4
4
R482 R480 C432
4
6 1
IC416
C448
C442
R502
R503
CN403
C401
C454
8
50
S
R545
C451 R498
R542
D416
CN402 C441
C444 R486
R538 R540
R534 R536
1 5
R548 L702
R448
R530 R532
IC410
C467 C412
R449
3 4
R528
R450
R527 R526
R499 C434
R445
R524 C465
C421
4 3
Q401
R520 R522
6 1
C409
R516 R518
D407
R437
R435 R436
R439
R512 R514
S
D Q412
R469
G
R461
R481
C433
R465
D412
D408
R452
C431
R456
R473
EN2
+B
SB1
EN3
AGND
EN4
EN1
VOL_GND
VOL
33M
G
Q410 D
R150
R136
1
1
Q408
4 3
6 1
C456 10
R504 C455
R507 C462
R508 C463
R509
R510 C457
1
R506 C461
C460
C459
R501
D411
D413
R485
2
R479
Q409
R194
R147
R146
1
10
5
CN404
R466 R464
7
49
4 3
6 1
L403
C413
D414
6 1
Q415
R447
R544
R541
R537
R533
R529
–
R543
R539
R535
R531
CN401
IC402
20
L707 R547
1
+
E
IF_DET
NC
S_DET
GND
SCK1
GND
RFAGC
PLD
THP
VCO_MOD
/APCSW
APC
/PCS_RF
/DSW
Side_2
SDO1
W/N
Side_1
Side_G
PTT
GND
NC
+B
NC
+B
+B
NC
+B
NC
GND
GND
CV
GND
RSSI
5RC
TCXO_MOD
VAGC
TV1
ASSIST
TV2
SBC
/T_R
I2CSDA
/5TC
I2CCK
/SAVE
IFC
LED_R
/EMG
LED_G
6
4
4 3
4
8
C Q406
R523
R519
R515
R511
3
Q414
5
11
5
IC406
R133
4
R407
R441 R408
R443 C402
R525
R521
R517
R513
R549 C468
1
3
B
C425
D417
L402
C419
R431
C469
IC405
R725
6
IC407
3 4
Q407
4 3
6 1
C450
C447
C417
R424
1
R471
R434
C418
L409
R484
D410
R497
C430
IC408 R475 1
8
4 3
C439
IC412
5 1
R487
4
5
C420 R433
C435
C436 R488
R494
L704
C414
C411
6 1
5
1
R462
R459
R455
R458
R453
D405
R425
C424
R446
C422
D406
4
C449
C445
L401
C416
5
4
1
C415 +
R442
Q405
4 3
R457
IC409
L410
C410
R496
C429
R474 1
8
C440
IC413
R489
4
5
C437
C438 R490
R495
C123
L709
5
8
C470
3
8
H
C144
C136
C137
R404
10
Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No.
IC101
5K
IC404
9D
IC417
6F
IC711
6S
Q404
9E
Q701
6Q
D404
5M
D416
IC102
5I
IC405
3F
IC418
6F
IC712
6N
Q405
3E
Q702
4R
D405
4B
D417
IC103
4K
IC406
5C
IC701
7Q
IC713
4Q
Q406
5E
Q703
6R
D406
4C
D701
IC104
3H
IC407
5B
IC702
5R
IC714
5R
Q407
4E
Q704
7R
D407
9D
D702
IC105
4L
IC408
4C
IC703
7P
IC715
5P
Q408
7C
Q705
5O
D408
7C
D703
IC106
8I
IC409
3C
IC704
3P
IC716
5N
Q409
7A
Q706
5O
D409
3D
D704
IC107
7I
IC410
8E
IC705
9N
Q101
3K
Q410
8A
Q707
4N
D410
4D
D705
IC108
7K
IC411
9F
IC706
7N
Q102
3K
Q411
8G
D101
3L
D411
7A
D706
IC109
6G
IC412
4D
IC707
3P
Q103
3L
Q412
9D
D102
6G
D412
8C
D707
IC401
5F
IC413
3D
IC708
9Q
Q401
8D
Q413
9C
D401
4M
D413
7A
IC402
4F
IC414
9A
IC709
4R
Q402
8C
Q414
6C
D402
5M
D414
6F
IC403
7F
IC416
8A
IC710
6N
Q403
8D
Q415
6C
D403
5M
D415
7F
11
12
13
66
14
J
K
L
M
N
O
P
Q
R
S
NX-300
PC BOARD
CONTROL UNIT (X53-4260-XX) -10: K, -11: K3
Foil side view (J79-0131-19)
R777
C715
C711
C732
S
C731
4
IC714
1
8
5
R790 R785 C760
IC711
R803
C752
D
6
C802
R810
R809
R799
C753
C764
Q704
R808
7
R827
C771
TH701
C768
R826
R819
R824
8
D702
D705
R718
D701
C780
R821
CN710
5
1
C742
IC708
3
C751
C728
POW 26
TXI
RXEO
OPT2
OPT11
DTI
5V
AO
AGND
OPT5
OPT4
26P_TD
OPT3 2
R724 C718
8
C736 R764
1
CN709
25 OPT6
RXEI
TXO
OPT7
OPT8
OPT9
AGND
AI
AGND
OPT10
NC
26P_RD
1 OPT1
C737
R726
24
19
R722
1
18
R721
IC701
R731
R729
6
13
7
12
R720
R719 R728
R723
R727
R791
4
S
5
R798
C755
C803
G
R743 C804
C765
L706
R732 R717
C716
C734
R771
R778
C705
1
Q703
C708 C707
R811 R739
IC702
C701
1
C763
4
R741 C719
Q701
CN708
RXD
8
R805
R736
C713 R751 R850
CN707
TXD
4
5
5
R747
5
R797
C720
5
4
R806
C723
4
8
IC709
C706
8
C746
1
R818 R807
R748
C704
R769
R770
R779
R768 R754
R749
R815
CN706
GND
1
CN705
MAN
DOWN
24
L701
CN711
C757
R730
CN704
RSSI
C738
C758
R782
CN712
R804
CN703
PTT1
C801
IC703
R786
R775
R796
C735
R784
R767
R752
R756
R759
C740
C743
D
C778 R814
CN702
PTT2
C775
R816 R812
R813
R794
R787 C749
R783
1
IC715
R820 R825
C785
3 4
3
C717 C722
R755
R758
Q702 G
IC713
R716
R714
R715
R711
Q705
R706
R704
R702
12
R800
R802
C761
8
C777
G
13
1 5
5
R761
R757 R744
C779
2
20
C772
F701
C724
C727
C709
1
R713
R712
R710
D
Q706
IC710
C750
R765
C756
R709
R707
R705
19
R738
C712
R745 R750
R793
C710
R742
R737
R733
4 3
5 1
R766 C725
IC704
R703
S
G
C787
R831
D707 D706
R740
8
4
R795
4 3
5
L101
IC705
C150
1
C739
R763
C730
R746 C714
R828
R841 C744
C747 R780
4
L715
C721
IC706
R417
R762
C800
L716
L102
R801
R789
R788 C748
C137
C149
3 4
6 1
C136
R191
C144
+
R182 R419
C155 R173 R426
R171 R184 R440
R189 R186
R188 C147
4
+
5
R840
C759
IC712
1 5
C799
R175
R178
R177
R176
C151
C152
R168
C160 C138
C131 C139
C133
C143
R170 R163 C140
C161
C142
X101
R427
R428
R429
R420
C145
R158
R470 C428
R463
4
D404
R413
1
R753 C745
CN701
R822
R154
R155
R153
8
IC716
CN106
R192
R190
R181
R183 CN105
C154
C148
R130 CN104
C141
C153
C146
R174
IC108
R185
R172
R180
R432
1
C762
R156
R834 C796
C788 C786
IC707
8
2
R735
4
R852 R851
R833 R835
C789 C791
R102
C157
C156
R157
R187
C110
R167
C135
R412
R838 C794
R839
L717
R468
Q707
R837 C793
D
CN103
C101
IC101
C106
C105
G
S
D403
D
5
C782 C781
R823
R411
S
R844 R843
D402
C797
1
CN102
C102
R101
D401
R410
D703
R845
C792
R836 C790 R832 R830
IC105
3 2
4
C124
R149
C103
C767
R847
C795
R846 R842
C122
R120
CN101
IC103
C108
R401
R403
R405
R414
R415
R416
R144
R418
R829
R701
R108
D101
C726
+
C766
C798
S
Q103
C118
G
L710
D
R112
R106
C114
R111
R113
R115 C107
R117 R114
C115
D704
Q101
Q102
1
9
4
C703
J79-0131-19
10
Component side
ress Ref. No. Address
D416
9E
M
4B
D417
5C
4C
D701
8R
9D
D702
8R
7C
D703
4O
3D
D704
3O
4D
D705
8R
7A
D706
6O
8C
6O
D707
7A
6F
Layer 1
Layer 2
Layer 3
Layer 4
Layer 5
Layer 6
11
Foil side
12
13
7F
67
14
A
1
B
C
NX-300
D
E
F
G
H
I
J
PC BOARD
TX-RX UNIT (X57-7370-10) (A/2)
Component side view (J79-0128-19 A/2)
2
R530
1
IC600
8
5
R659
G
R664
+
+
Q604
C626
R601
5
C555
R705
R629
C601
C717
C622
R798
C723
C947
R904
C902
5
R735
R795
R797
5
R792
C722
C713
R725
S
8
IC404
4
1
R703
R709
C724
CN701
R731 VAGC
C720
C760
13
R794
C736
R721
12
4
R738
C735
1
IC700
3
R736
C711
C759
6
L500
R726
R722
C710
CN700
RSSI
C792
R719
IC701
C709
X500
1
4
IC500
3
R727
R714
R501
R505
C727
R717
R570
C509
R796
R720
CF701
24
1
C500
C501
R572
C502
C505
C508
R500
R718
C503
3
1
IC501
R704
4
5
R502
R712
D604
R635
R603
C602
R602
4
S
D
R660
8
IC504
C729
Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address
IC404
10G
IC700
8H
Q504
3D
Q610
5I
D501
7B
D900
8P
IC500
9B
IC701
9E
Q505
6C
Q704
6L
D505
4B
D901
5M
5P
IC501
8C
IC702
7K
Q507
7C
Q900
9P
D518
7D
D902
IC502
7E
IC900
4P
Q604
6J
Q901
7N
D604
7J
IC503
5C
IC901
9O
Q605
3I
Q902
7M
D605
6I
IC504
7H
IC902
5N
Q607
4I
Q904
9O
D608
5I
IC600
4J
Q503
7B
Q608
4J
Q905
4N
D700
6L
68
R655
R633
J79-0128-19 A/2
13
R654
D605
R600
R724
C703
12
4
R656
C600
L599
1
R547
R548
L598
R567
R512
R511
C517
C513
R670
C641
Q608
C653
R657
C631
C554
C518
R513
D518
R557
Q507
R504
C511
C516
R546
C728
R503
R555
C528
R554
R506
C523
C519
R552
C562
19
18
12
13
R523
C522
R519
25
IC502
C512
C525
C521
C526
C514
R549
R514
C506
11
C527
R521
R550
C558
Q505
C572
R515
C559
1
7
C515
C504
10
R522
R534
C529
R520
C535
6
R574
9
R651
C672
D608
L504
L513
C524
8
C543
C553
R648
R658
R669
4
C537
C550
R536
C539
3
C520
4 3
5
IC503
D501
6 1
Q610
C536
1
Q503
TH600
C637
R539
D505
R533
R527
+
7
R566
C542
R535
6
R653
Q607
R532
+
C640
R652
C534
R641
R538
C541
4
5
R531
L503
+
R649
G
D
S
Q605
C651
R537
3
14
C649
C646
C628
G
Q504
S
D
R529
C533
CN500
CV
R541
C630
C
J
K
L
M
N
O
P
Q
R
PC BOARD
S
NX-300
1
TX-RX UNIT (X57-7370-10) (A/2)
Component side view (J79-0128-19 A/2)
2
C946
R642
R645
R647
R648
C640
CN901
1
4
C641
IC600
PTT 1
GND
Side_G
Side_1
Side_2 5
R654
C636
R655
C945
C971
C943
8
5
4
IC900
1 5
3
Q905
R927
5V
S1
D901
C958
C956
6
4
C761
C626
C951
TXI
Q704
C955
OPT6
POW
R910
R905
C948
OPT1
R907
R902
R909
C908
C904
C906
C910
C915
C919
R432
C926
C930
C934
C938
C941
D900
C912
C917
R431
C925
C928
C932
C936
C940
+
L901
8
OPT4
DGND
OPT3
R903
R900
AGND
1
OPT10
B
E
B
Q900
C
IC901
C
5
Q904
3
4
1
4
C953
9
J79-0128-19 B/2
8
C962
C974
5
/EMG 2
LED_G
IFC
LED_R
I2CCK
/SAVE
I2CSDA
/5TC
/T_R
SBC
ASSIST
TV2
VAGC
TV1
TCXO_MOD
5RC
RSSI
GND
CV
GND
NC
GND
+B
NC
+B
+B
+B
NC
NC
GND
PTT
Side_G
W/N
Side_1
SDO1
Side_2
/PCS_RF
/DSW
/APCSW
APC
THP
VCO_MOD
RFAGC
PLD
GND
SCK1
GND
S_DET
IF_DET 50
R914
1
49 NC
R904
CN900
C973
C907
R923
C967
R926
R925
R430
C933
C929
C937
C966
R928
C914
C905
C916
C918
C920
C922
C927
C923
C931
C935
C939
R901
OPT5
OPT2
C950
C949
C942
7
OPT7
R913
R911
S D
G G
D S
OPT11
Q901
Q902
R918
R916
3
R758
S D
G G
D S
C977
4
1
R763
IC702
5
R764
C766
6
OPT8
R906
D604
S
RXEI
DTI
C957
R633
C622
R908
D902
R755
D700
C900
C903
Q604
OPT9
IC902
F900
5
RXEO
1
3
+
4
TXO
C964
C961
L900
G
R922
R920
S
D
R921
C963
R661
R659
R660
R629
TX-RX UNIT
(X57-7370-10) (B/2)
C913
C976
Q608
3
3
C969
R651
10
C972
Component side
Layer 1
Layer 2
Layer 3
Layer 4
Layer 5
Layer 6
11
Foil side
12
13
69
14
A
1
B
C
NX-300
D
E
F
G
H
I
J
PC BOARD
TX-RX UNIT (X57-7370-10) (A/2)
Foil side view (J79-0128-19 A/2)
2
C650
3
C662
L723
R774
R762
4
C777
R761
R769
C741
C742
L714
R753
C764
R760
C767
C776
L713
D704
C770
L717
C778
C
C768
C772
R770
C773
C774
C782
L715
R771
R765
C786
C785
70
14
G S
Q705
G D
C784
C791
S
C769
L7
R778
C789
13
R783
R780
Foil side
12
G
D
S
11
R781
Component side
Layer 1
Layer 2
Layer 3
Layer 4
Layer 5
Layer 6
C780
C788
R799
Q706
C779
R775
L720
C795
C901
R784
3
C783
L721
C796
5
R768
R772
D705
10
1
IC703
R779
C944
R773
C800
C798
R919
9
R777
R786
L716
C802
D706
C794 R785
S D
G G
D S
Q903
R917
C807
L722
8
RXD1
R791
C799
R912
C811
L726
26P_RD
OPT1 1
C804
D708
R788 C801
C970
NC
C968
OPT4
C809
C810
C849
D710
C965
DGND
OPT10
TXD1
C850
NC
OPT5
2 OPT3
R790
AGND
AGND
26P_TD
C954
NC
5
OPT9
+
D709
C803
D711
1
OPT8
DTI
C952
OPT11
CN600
L725
IC903
OPT7
4
OPT2
R915
3
TXO
CN737
RXEO
5V
7
R929
6
C652
C663
C664
OPT6 25
D606
D607
L612
C666
5
RXEI
C647
C660
L611
C665
TXI
R666
R665
C668
J79-0128-19 B/2
26 POW
R663
C975
C661
L613
C669
R667
4
C667
L614
TX-RX UNIT
(X57-7370-10) (B/2)
C654
C775
D703
C771 R759
D702
R757 C765
C758
R7
J
K
L
M
N
O
P
Q
R
S
NX-300
PC BOARD
1
TX-RX UNIT (X57-7370-10) (A/2)
Foil side view (J79-0128-19 A/2)
2
C650
C645
L610
C643
C547
R544
C648
R545
R543
L517
L515
R576
D507
D516
D511
L526
D
C570
R599
L520
D519
C574
G
R563
7
R562
C603
Q510 R568
C582
R558
S D
G G
D S
6
C580
C584
C585
R564
C588
C586
Q512
L528
R565
C607
R605
C576
L527
Q511
G
D
S
C578
L523
8
C706
9
L701
Q700
R702
R571
R733
C701
R701
Q701
C734
CF700
10
R710
C718
R730
C721
R737
C707
L703
C700
C719
C708
C704
C790
R728
L704
L707
L780
C712
L705
C725
C738
XF700
C715
C732
C733
C730
C739
R740
C764
C745
5
D601
C743
R743
C746
Q509
S
R560
C577
R607
C604
Q600
C740
L708
R561
D514
D
Q508
G
R608
R606
R604
R609
R739
L516
D510
C571
S
R628
C689
L600
Q601
C744
C737
65
R624
C748
G S
Q703
G D
R749
R616
CN702
BPF
R747
R745
R752
R750
C758
R748
R753
R746
C752
R623
C614
C756
R744
42
C587
C605
C565
L524
C583
L711
C750
L706
C690
C610
R612
R610
R742
L522
C581
C611
S
C741
R618
D600
L709
C749
C755
L710
C671
C613
C619
C747
C754
C753
R622
L615
L602
C567
L521
C617
C612
L519
C573
C615
R617
4
D517
C579
C670
S G
Q602
D S
CN902
L604
C575
C623
R620
L603
R626
C621
C618
C751
L605
R631
R630
C625
R632
R627
R634
C691
C557
C566
C568
G
+
L514
R575
L518
L525
S
3
C548
D515
R559
C627
Q603
D506
C629
R636
C634
D
R650
G
Q606
R644
C639
C652
C647
D
L606
C635
R542
C556
C546
C632
L509
R639
L609
R646
L508
L607
C642
11
J79-0128-19 A/2
Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address
IC703
8H
Q600
7P
Q703
9K
D511
4R
D601
8O
D706
8E
IC903
7D
Q601
7N
Q705
10F
D514
4Q
D606
5H
D708
8E
Q508
5P
Q602
6N
Q706
10E
D515
4P
D607
5G
D709
6G
Q509
6Q
Q603
4N
Q903
8D
D516
4R
D702
10I
D710
7E
Q510
7R
Q606
4L
D506
4P
D517
4R
D703
10I
D711
6F
Q511
6R
Q700
9R
D507
4Q
D519
5R
D704
10H
Q512
7Q
Q701
10O
D510
4Q
D600
7M
D705
10E
12
13
71
14
A
B
NX-300
C
D
E
SCHEMATIC DIAGRAM
1
LCD
5
6
OUTPUT
5 V-
A
A0
/RES
/CS
2
1
/WR
4
3
D1
D0
6
5
D3
D2
7
D4
9
8
D6
D5
12
10
D7
13
11
VSS
VDD
14
V1
VDD
16
15
V3
V2
18
13
14
GND
VOLTAGE
DOUBLING
INVERTER
A
A
A
A
19
R4 10k
R5 10k
47
R6 10k
R409
5
R7 10k
6
R8 10k
4.92V
7
R9 10k
VIN
R12 10k
C1+
C2-
C7
C2+
8
10k
5
R408
7
10k
8
20
10
GND
B8
B7
A8
B6
A7
B5
A6
B4
A5
B3
A4
B2
A3
B1
A2
oE
A1
4
B2
GND
B1
A2
G
A1
VCC
3
DIR
/WR
2
A0
1
7
9
8
7
D0
C402
D1
0.1u
A
D2
6
/CS4
D3
5
D4
4
IC401,402
D5
3
BUS SW
D6
2
D7
1
DIR
VCC
6
C401
0.1u
0.1u
NC
R10 10k
18
C1-
VoUT
C404
2.2u16
+
17
1000p
3
16
C408
2
4
15
1000p
1
C403
2.2u16
+
100k
R11
C40
220p
C2 1u
C1 0.1u
C3 1u
C4 1u
12
A
C407
-9.74V
IC401
TC74LCX245FK
11
C405
2.2u16
+
IC403
LM2682MMX
A
R407
6
A
3.28V
C406
1u
C41
100p
-7.13V
3
17
V5
V4
33M
1
/LCDRST
IC402
TC7WZ245FK-F
0
A
A
2
V+
5
R406
3
INPUT+
0.1u
12k
INPUT-
C8
-t
IC1
LMC7101BIM5
4
R3
TH1
100k
R2
LCD CONTRAST
100k
2
C6 1u
R1
C5 1u
CN1
-7.24V
1M
20
CONTROL UNIT (X53-4260-XX)
19
6
5
A
L707
A
A
33M
5A
SB2
D101,Q101-103
∗Q101
2SA1832(GR)F
∗R112
R410 470
0
R411 470
D401
1SS388F
4.7k
12KEY
CONTROL
∗Q103
SSM3K15TE(F)
S11
KEYO3
R414
470
0
470k
∗R108
KEYO1
KEYO2
R413 470
D401-404
470p
A
BLC
R412 470
∗C115
/KEYI0
6
S12
A
D11,Q1-3
1
2
3
S2
S5
S8
R415
470
5
Q1
2SA1362-F(GR)
470
4
5
6
S3
S6
S9
7
8
9
S4
S7
S10
R144
0
C12
470
/KEYI2
/KEYI3
470p
6_KEYO1
R418
/KEYI4
Side_G
BL_SB
6_/KEYI0
6_/KEYI1
Side_1
Side_2
6_KEYO0
A
33M
S13
470
6_KEYO2
4.7k
R14
R17
330
1u
C11
D11
MA2S111-F
C10
D8
A
R416
R15
0
Q2
2SC4617(S) R16
0.1u
D7
150
150
R404
R402
B30-2215-05
D4
D3
8
Q3
SSM3K15TE(F)
5
7
/KEYI1
LCD BACKLIGHT SW
LCD BACKLIGHT
31BU
KEYO0
D404
1SS388F
0
D403
1SS388F
∗R117
330
D402
1SS388F
∗R114
1u
∗C114
MA2S111-F
∗D101
∗R106
∗D6
A
4
12KEY BACKLIGHT SW
∗Q102
2SC4617(S)
0.1u
∗C108
1.5k
1.5k
∗D9 ∗R405
∗D5 ∗R403
1.5k
∗D10
B30-2215-05
∗D2
∗D1
∗R401
12KEY BACKLIGHT
R417 0
9
5
6
6
A16
/WR
7
/RD
/CS2
7
/CS0
/RD
7
9
D6
D2
D7
D3
D0
D5
D2
D7
D8
D10
D12
D14
6
5
E1
E6
VSS2
VCC2
F3
F1
DQ6
F4
NC3
NC2
F6
G1
oE
DQ2
DQ7
G2
NC1
A11
SRAM
DQ5
8
9
1u
D1
C6
C4
C3
D1
A5
C1
B5
D0
LCONT
A7
A4
WE
B4
6
D5
B6
B3
B2
D6
A2
B1
A6
A5
A2
A4
DQ4
A7
A14
A8
DQ0
A13
A6
A12
A8
A6
A2
H6
A10
A6
A18
H5
VSS1
A5
A3
A13
VCC1
IC103
CE2
A12
A14
H3
H4
C118
DQ1
A9
A1
A10
A11
DQ3
A3
A14
A10
7
H2
A15
A4
A1
H1
A1
A5
G6
A3
A9
A16
A0
A15
A20
G5
CE
G3
A11
A19
G4
A0
A12
5
7
RESET
470k
A12
D4
R120
A8
C1
A2
B6
B5
1000p
A8
C3
C2
A6
D
C4
A16
A2
RESET
WP/ACC
B3
B4
/WP
A17
/FRST
C110
A17
A4
A13
B1
A9
A6
B2
A4
A13
A3
WE
A18
RY/BY
DQ4
VSS2
C6
A15
A1
E1
A0
DQ0
E2
E3
E4
DQ5
DQ2
DQ7
E5
E6
F1
CE
A16
F3
F2
DQ8
DQ10
DQ12
F4
DQ14
F5
A21
DQ6
D1
C5
A10
DQ3
A5
H6
A14
DQ1
A4
H5
D4
D2
A1
FLASH
VSS1
D5
D3
A5
IC101
DQ15
A1
D
H4
DQ13
A9
D6
H3
A20
/WR
D4
H2
A11
A19
CN103
D1
D3
H1
D6
A15
VCC
A7
C106
0.01u
G6
5
DQ11
A3
D15
NC
F6
D13
C105
1u
G5
DQ9
A7
6
G3
G4
A3
D9
D11
oE
A2
L717
G1
G2
L710
D
A0
6
D
Q101
Q102
Q103
D1
R106 R108 R112 R114 R117 R401 R403 R405 C108 C114 C115
D101
D10
D5
D6
D9
D2
X53-4260-XX
-10
NO
K
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
1u 470p
-11
330
1.5k 1.5k 1.5k 0.1u
0
K3 B30-2215-05 B30-2215-05 B30-2215-05 B30-2215-05 B30-2215-05 B30-2215-05 MA2S111-F 2SA1832(GR)F 2SC4617(S) SSM3K15TE(F) 4.7k 470k
0
7
72
X53-426 1/10
F
G
H
I
J
NX-300
SCHEMATIC DIAGRAM
CONTROL UNIT (X53-4260-XX)
HD2
5
5
6
6
5
6
R126 100
HD1
B11
A11
C101
D6
0.1u
D7
D8
D9
D10
D11
D12
5
CN102
D13
D14
C102
0.1u
C10
B10
A10
D9
C9
B9
A9
D8
C8
B8
A8
470k
R101
D15
D10
D
A7
/RD
/HDS2
C103
A0
0.1u
A1
A2
A3
7
CN101
A4
A5
A6
A7
C104
0.1u
A8
A9
CVDD5
A19
A20
INT3
CVSS9
INT2
DVDD5
INT1
D6
INT0
D7
C7
D7
A6
B6
C6
D6
A5
B5
C5
D5
A4
B4
C4
A3
B3
C3
A2
B2
N12
R128 0
R135 100k
L11
M11
FSDET
N11
C119 1u
R141 100k
L10
INT3
M10
N10
R150 1k
K9
/DINT
/SYMTIM
12
D10
NMI
D11
HBIL
D12
IACK
HD4
BDX2
D13
BDX0
L9
R136 100k
M9
N9
D15
HD0
L8
HD5
DVSS6
CVDD6
HRDY
CVSS10
IC102
HDS1
BFSX2
DSP
DVSS8
BFSX0
HDS2
CVDD4
HINT
A1
CVSS7
A2
BCLKX2
A3
BCLKX0
HD6
A4
BDR2
A5
HCNTL1
A6
BDR0
A7
A8
BFSR2
A9
BFSR0
CVDD7
A21
BCLKR2
DVSS9
BCLKR0
D
DVSS5
HCNTL0
BCLKR1
R129 100
R143 100k
HD0
N8
K7
C121 0.1u
L7
R130 100
R145 100k
N7
M7
R131 100
/MCCSXCN
N6
C120 0.1u
M6
L6
R146 100k
K6
BCLKX2
BCLKX0
N5
R147 100k
M5
BDR2
L5
R139
K5
100k
R193 100k
N4
MCDOCN
BFSR2
M4
R194 100k
L4
/MCCSRCN
BCLKR2
K4
BCLKR0
N3
M3
R132
N2
100k
R140
0
N1
12
BFSR1
BDR1
MCDICN
11
M2
DVDD2
CVSS4
M1
L3
L2
MP_MC
L1
BIo
HoLD
IAQ
K2
K3
HoLDA
K1
XF
J4
J3
J2
MSC
IoSTRB
MSTRB
H4
J1
R_W
IS
H3
H2
DS
READY
PS
H1
G3
G4
HR_W
G1
HCS
CVDD2
G2
F1
CVSS3
DVSS1
HAS
F3
F4
F2
CVDD1
A14
A15
E1
E2
E3
A13
A12
D1
E4
A11
HD7
D2
A10
D3
DVDD1
D4
C1
CVSS2
C2
B1
A22
CVSS6
11
BDX2
M8
DVDD6
A0
/DWUP
R137 100k
K8
D14
CVSS1
MCSCKAF
R142 100k
D9
A1
33M
SCTAMI
M12
D8
DVDD4
B7
15M
N13
BDX1
BFSX1
M13
DVDD3
L12
DVSS2
CLKMD1
L13
K10
CLKMD2
K11
K12
K13
HPI16
HD2
J10
J11
ToUT
CLKMD3
DVSS7
CVSS8
A13
MCDIAF
R127 0
BCLKX1
A12
33M
0.1u
L711
R118 47k
J12
100k
R116 47k
J13
H10
TDI
TDo
TRST
R121
C117
L712
EMU0
0.1u
H11
H12
R115 100k
C113
R111 100k
R113 100k
H13
G13
G12
TCK
TMS
CVSS5
CVDD3
G11
G10
HPIENA
F12
F11
F13
DVSS3
CLKoUT
F10
X1
EMU1 oFF
6
HD3
X2_CLKIN
D0
100k
R107
1000p
1k
D0
R103
E13
E12
D1
E11
D3
D2
D13
E10
D1
D2
D11
C13
C12
C11
B13
D12
D3
D4
D5
A16
DVSS4
B12
A18
A17
D4
D5
6
A16
A17
RS
5
C109
R102
470k
33M
X2_CLKIN
7
8
9
12
/HRDY
/DRST
100k
0.1u
11
MCDOAF
BFSX2
R123
C116
R122
100k
100k
R119
100k
R110
/WR
/CS3
C112
0.1u
0.1u
C107
0.1u
C111
5
100k
R105
A15
A14
A13
A12
A11
A10
/MCCSAF
7
7
7
8
8
9
5RC
9
LCONT
RESET
A
BER_EN
13
13
13
0
0
R713
3
SCTXD
R714
BCLKX2
BCLKX2
1
2
5
4
6
10
11
12
19
20
RESET
0
0
R715
7
R712
0
R710
RXD0
0
R711
8
0
INT3
R709
9
13
0
0
R705
14
R707
0
R706
15
BDX2
BDX2
0
R703
16
0
0
R704
17
/SCSS
0
R701
BCLKR2
R702
18
BDR2
BFSR2
LCONT
CN701
X53-426 2/10
K
L
NX-300
M
N
O
SCHEMATIC DIAGRAM
CONTROL UNIT (X53-4260-XX)
HD2
HD2
GPIo7
5
ASQDET
5
9
OSCIN
SDA
8
OSCOUT
INTRB
CLKC
VSS
INTRA
32K
I2CCK
I2CSDA
C15
D13
D15
D14
E15
D15
7
/WR
6
/RD
LED_R
/RINT
R138
C159
A15
A16
B14
C14
LED_G
15
47k
A13
/CS4
0.1u
D
D16
D12
D13
/CS3
C13
/CS2
18
B13
CN105
A14
/CS0
B12
/HRDY
/HDS2
C122
4
CD
VSS
VoUT
VIN
7
MCSCKCN
R16
RTS0
1
R15
CTS0
U15
AMT
R149
3.282V
T15
33M
V15
26P_TD
0
V14
RXD2
RESET
3.28V
T18
RXD0
2
C124
3
D
0.01u
150
R148
0.01u
IC105
XC6109C29ANN
R18
TXD0
18
16
11
11
12
T14
/OINT
R153
100k
R154
12
15
100k
14
R155 47k
J4
IFIR
MICIR
DT5
DT6
DT7
DT8
DT9
DT10
DT11
DT12
DT13
DT14
DT15
WRITE
READ
BHE
BLE
CS4
CS3
CS2
CS1
CS0
HRADY
HDS2
TXD0
RXD0
RTS0
CTS0
TXD1
RXD1
TXD2
RXD2
TXD3
RXD3
BCLKR0
D14
DT4
R156 4.7k
7
I2CCK
I2CSDA
/PTT
/PTT
SDO1
SCK1
STSW
LCONT
RESET
/WP
LCONT
SCK0
9
SDO0
5RC
8
/EVCS
R157 4.7k
TONESW
5RC
7
ADC5
BCLKX0
L708
10
B15
D11
DT3
R163 100k
4
D17
D10
VDD
SCL
D18
D9
32768Hz
3
32KOUT
F16
D8
IC106
RV5C386A
X101
2
E17
D7
32K
1
E18
D6
0.01u
RTC
G16
D5
14
DT2
ADC4
C123
D
F17
D4
DT1
SPCS12
D3
4
oUTY
F18
DT0
H1
GND
G15
D2
ADD21
G3
INA
3
HD0
5
VCC
H16
D1
0
INB
D0
2 INPUT
AND GATE
ADD20
CV
S_DET
C160 6800p
1
G17
ADD19
SPCS11
100k
R133
IC104
TC7SH08FU-F
2
H15
CN106
ADD18
T5
J16
A20
ADD17
R419
L709
ADD16
W_/N
P15
A19
ADD15
SPCS10
6
ADD14
SPo1
N15
A18
D
D
M15
ADD13
U6
470k
A17
K15
A16
ADD12
SPI1
9.5mV
R165
1k
J15
ADD11
T8
1
A15
ADD10
V7
D
ADD9
U7
VC
P16
A14
ADD8
SPCK1
R162
VCC
2
ADD7
V6
4
GND
ADD6
SPCS02
0.01u
oUTPUT
M16
ADD5
T4
3
L16
A13
100k
C130
1
INHN
XTN
D
2
K16
A12
R166
6
X102
18.432MHz
3
XT
VDD
P17
A11
C134
5
BUFFER
VSS
Q
A9
0.01u
4
N17
A10
IC107
SM5023CNDH-G
22
R159
L713
M17
ADC1
D5
A8
K17
SPCS01
A7
ADD4
SPCS00
J17
A6
ADD3
SPo0
N18
A5
U4
A4
ADD2
SPI0
M18
ADD1
SPCK0
L18
A3
ADD0
T6
K18
A2
USRCKI
SDT
J18
A1
6
CKo
V4
6
H18
A0
5
R14
5
DSPCK
U5
A11
32I
0
B11
/RINT
XTALo
SCK
A12
CN104
C10
32K
XTALI
A9
B4
A10
0
R161
A4
22
R160
33M
31BU
33M
R158
6
F3
AUD_IREFC
AD12_IREFF
14
V5
6
X2_CLKIN
A
14
14
15
RSSI
15
7
7
33MAS
11
33A-1
RXD3
12
8
I2CCK
18
I2CSDA
13
16
9
16
18
18
11
13
/MNDNU
11
SPCS10
RESET
RXD
TXD
R716
A
X53-426 3/10
TXD
CN707
RXD
CN708
GND
CN706
MAN
DOWN
CN705
PTT1
CN703
12
RSSI
CN704
PTT2
CN702
0
12
8
9
13
8
9
13
8
13
17
32K
PFKEY
VOX
A
MOD
MIC
A
11
18
17
12
TONE
BEEP
8
7
15
14
16
33MAS
7
SPCS10
RESET
9
BLC
13
D
D
THP
VAGC
10k
C161
R170
A
C140
0.1u
A
3p
C428
100k
R463
D1
E3
E2
D2
IFVR
IFADCN
IFADCP
FCDADC
ADC2
ADC3
IFR
DAC0
ADC0
SQDAC
BooT
TEST3
TEST2
TEST1
TEST0
RSTo
NC30
DGND4
DGND5
DGND6
DGND7
DGND8
DGND9
DGND10
DGND11
DGND12
DGND13
DGND14
DGND15
AVCC1
AVCC2
NC36
AVCC4
AVCC5
AVCC6
NC35
AVCC8
AVCC9
AVCC10
NC34
AGND2
AGND3
AGND4
AGND5
AGND6
AGND7
AGND8
AGND9
NC1
NC2
NC3
NC4
NC5
NC6
NC7
NC8
NC9
NC10
NC11
NC12
NC13
NC14
NC15
NC16
NC17
NC18
NC19
NC20
NC21
NC22
NC23
NC24
NC25
NC26
NC27
NC28
NC29
J14
K14
P13
P12
P8
P7
B3
A5
C4
T2
C17
U16
D3
E4
V16
F4
G4
H4
T3
K4
L3
M1
U3
E5
F5
G5
H5
J5
K5
L1
E6
A1
A2
B1
B2
A17
A18
B17
B18
U17
U18
V17
V18
U1
U2
V1
V2
A3
C3
C5
B16
D4
D6
C16
C18
F15
R13
T16
T17
N4
T1
SCHEMATIC DIAGRAM
C142
10u6.3
+
ASSIST
G1
G2
E1
F2
F1
C2
V3
L15
N16
L17
G18
R17
RST
BSCAN1
BSCAN0
RTCK
TRST
TCK
TDo
TMS
TDI
TI
PWM2
PWM1
KEYo4
KEYo3
KEYo2
KEYo1
KEYo0
KEYI4
KEYI3
KEYI2
KEYI1
KEYI0
MICADC1
MoDDAC
MICADC0
SPDAC
MICVR
ADC9
ADC8
ADC7
ADC6
R
6800p
RFAGC
RSSI
ASQAPC
R168
0
1k
P18
E16
H17
U13
U14
T13
R11
R12
R10
V8
P4
R4
U12
V13
T12
U11
V12
T11
U10
V11
R9
T10
L2
K3
K2
K1
J3
J2
J1
H3
H2
Q
1000p
/FRST
C135
NC
R167
/KEYO3
/KEYO2
/KEYO1
/KEYO0
/KEYI4
/KEYI3
/KEYI2
/KEYI1
/KEYI0
C133 10u6.3
+
RXAF
C131 0.1u
BATT
VOL
P
S
T
NX-300
CONTROL UNIT (X53-4260-XX)
HD2
GPIo7
GPIo7
HD2
A
33A-1
IC108
ASIC
R470
68k
IFADCN
A
14
15
14
15
15
33A-1
7
33MAS
33A-1
18
16
11
18
16
11
17
17
SPCS10
12
9
12
13
BLC
9
X53-426 4/10
U
V
NX-300
W
X
Y
SCHEMATIC DIAGRAM
CONTROL UNIT (X53-4260-XX)
HD2
C459
GPIo7
MCo1
MCI1
MCCK1
MCCS0
MCo0
MCI0
MCCK0
AGCDAC
470p
C456
470p
C455
470p
C462
470p
C155 0.1u
C463
C148 0.1u
C147 0.1u
C154 0.1u
C457
470p
33A
33M
C139 0.1u
C137 1u
C138 0.1u
C145 0.1u
C146 0.1u
C153 0.1u
C152 0.1u
3
D11
A8
R3
MCDOCN
SB1
D
MCDICN
MCSCKCN
/MCCSAF
MCDOAF
IC703
M62364FP-F
7
D/A
CONVERTER
D
MCDIAF
MCSCKAF
R173
0
C158
oUTY
GND
INA
0.01u
4
VCO_MOD
TCXO_MOD
C743 1u
VIN1
C740 1000p
VIN8
1
R429
0
2
3
VoUT1
VoUT8
4
VIN2
VoUT2
VoUT7
SCK0
/EVCS
R759 100
5
6
LD
CLK
VDD
GND
SDO0
R756 100
R752 100
7
RESET
VIN7
23
PLD
20
24
/MCCSXCN
PLD
21
/MCCSRCN
/EMG
VDAREF
1k
R172 0
/UDET
20
R187
D10
B9
D
/DINT
C7
19
/DWUP
D7
8
/DRST
D8
DI
N1
D0
IFC
M3
B10
14
5RC
M2
18
L4
A7
5
/SAVE
T_/R
P1
TV1
N2
B8
L705
21
14
15
MM
9
D
VIN3
0
D
15
VoUT3
R171
N3
12
/APCSW
TV2
R1
C9
2 INPUT
AND GATE
15
1
/LCDRST
M4
B7
D
IC109
TC7SH08FU-F
DSW
P2
D9
D
/5TC
P3
17
3
FSDET
R2
/BINT
2
/SYMTIM
R6
C8
33A
33M
+B
BATT
/PSW
1k
VCC
1k
INB
R190
R5
R428 0
C12
20
1SS416
/MNDNU
R192
D12
22
MCCX1
1
2
D102
R181 100k
C11
17
MCCR1
10
REVERSE
CURRENT
PREVENTION
17
ENC1
C738
MCCK2
9
24
23
1000p
MCCS2
R178 100k
19
14
VIN6
MCo2
ENC2
16
VoUT6
VoINT
R177 100k
16
VFRM
T9
ENC3
10
RSSIT
V9
R176 100k
VoUT4
PSRIF
PSRPLL
U9
ENC4
VoUT5
PSRRF
R175 100k
D
15
RXSLT
V10
R427 0
RXRVE
A
A
+B
SB1
INAMT
T7
11
PSTIF
PSTPLL
R7
12
TMoD
PSTPA
R8
VIN4
TRAMP
U8
VIN5
FSDET
TXRVE
19
5
19
EXAMT
13
SIMDT
A
14
SIMCK
SYMTIM
9
4
6
1k
0
SIMRST
8
R740
GPIo1
GPIo0
EN2
SBC
5UC
A6
BATT
GPIo2
1k
DSR
B6
/PCS_RF
GPIo3
100k
C6
C157
GPIo4
B5
1000p
GPIo5
R504
470k
GPIo6
E8
R191
GPIo7
7
A
R174
C156
GPIo8
6
EN1
E9
1000p
GPIo9
S1
CHANNEL SELECTOR
7
8
EN4
R507
A
47k
GPIo10
5
F14
100k
GPIo11
4
AGND
1k
D
G14
3
EN3
A 1k
R508
17
M14
2
VOL
R509
ENC1
ENC2
R185 1M
DVDD1
ENC4
A
18
/SCSW
R182
470k
DVDD3
DVDD2
N14
R186
DVDD5
DVDD4
P10
47k
R189 R188
DVDD6
VOL_GND
2.2k
R510
1k
CN403
1
R506
L403
L715
R183 100k
DVDD8
DVDD7
P9
A
33A
VOL
ENC3
M5
N5
2.2k
L716
D
E7
R180 100k
DVDD9
E13
C141
DVDD10
H14
VR1
POWER SW/AF VOL
C461
A
R501
L714
100p
DVDIo1
L14
C151 0.1u
DVDIo3
DVDIo2
P11
6800p
33A
A
R184
47k
DVDIo5
DVDIo4
P6
VOL SW/ENC
470p
L5
C144 1u
DVDIo6
19
470p
C460
L102
D
E10
C143 0.01u
DGND1
C150 1u
DGND2
DVDIo7
E11
C149 0.01u
DGND3
E12
C136 0.01u
A
15M
L101
33A-1
LCONT
21
D
IFADCN
14
15
11
12
14
16
15
14
14
14
15
15
16
18
16
7
33MAS
33A-1
17
16
18
11
21
17
SPCS10
IFADCN
12
BLC
18
9
9
13
X53-426 5/10
13
9
13
Z
AA
AB
AC
AD
NX-300
SCHEMATIC DIAGRAM
CONTROL UNIT (X53-4260-XX)
19
19
5A
33A
19
D702
R819
MA2S111-F
10k
6.8k
R785
PLD
ASQDET
Q701
C719 2SA1832(GR)F
R798 100k
C755 47p
0.1u
R803
OPT SW
1
A
R736
C713
R751
R850
82k
3300p
0
0
R748
330k
180k
R826
R827
-t
R821 100k
C780 0.22u
1000p
C768
0.1u
330k
TH701
100k
C802
0.01u
R810
3.3k
0 01u
C760
IN-A
oUTA
2
3
VDD
0.22u
470
33k
330k
R824
39k
A
C803
W/N
NOISE SW
8
7
5
APC/ASQ
SMF
6
A
APC LPF
D705
RB706F-40
C771
Q704
2SC4617(S)
R799
C753 100p
1000p
VDD
15k
oUTA
oUTB
C752 100p
R778
47p
R771
C804
1
IN-A
IN-B
2
VSS
IN+A
IN+B
3
4
68p
C706
IC702
TC75W51FK(F)
C734
1000p
R809
C764
1000p
R808
C723
0.1u
A
14
oUTB
680p
NOISE
DETECTOR
A
8
82k
SQL BPF/
BPF/SQL DC AMP
IN+A
C716
5
R739
27p
C707
R743
10k
IC711
TC75W51FK(F)
IN-B
ASQAPC
6
33k
7
A
VSS
ASQ DET
4
10k
R747
IN+B
A
C765
470k
R741
OPT10
PLD
CONTROL
R790
1k
A
A
SQL
NOISE AMP
Q703
SSM3K15TE(F)
A
24
18
10k
20
20
20
22
14
14
TXO
AMT
R426
/SCSW
0
C726
R766
6
0
7
8
C725
C711
1k
C756
R800
0.1u
470k
0.01u
A
R777
C727
R765
0.1u
330k
0.01u
oUTA
3
C778
2
1u
1
R818
A
22
C779
1.65V REF/
RX SUMMING AMP
0.01u
A
47k
A
22
22
1
2
A
0.1u
C724
R745
6.8k
10k
C712
47k
0.01u
R750
1
CoMMoN
IN-A
100k
2
INH
VCC
oUTB
A:VREF
/B:RX SUM
C745
C715
R735
VEE
CH0
68k
0.1u
RXEI
BEEP
3
IN+A
VDD
4
GND
CH1
180p
R753
RXEO
A
VSS
IN-B
100k
56k
4
8
IN+B
1000p
4
R815
5
oUT
6
7
0
VSS
IN-
C761
10p
R804
56k
3
VDD
5
IC707
TC7W53FK(F)
470k
1u
2
R746
IN+
RF AF SW
5
R802
C714
C709 R738
1200p
RXAF
1
C777
IC713
TC75W51FK(F)
SCSW(RXAF)
IC704
TC75S51FE(F)
RX AF LPF
14
23
0.1u
A
R793
RXAF SMF
R779
330k
2
14
A
A
10k
A
R749
TONESW
4.7k
3
4
TONE SW
Q702
SSM3K15TE(F)
INH
CH0
VEE
CH1
GND
A
6
5
A
1k
0.01u
W_/N
1
2
560k
0.1u
1k
82k
C705
R811
R807
OPT6
APC
R814
47k
47k
14
TXO
R805
R806
STSW
AO
INH
R797
C746
A
3
4
7
VCC
0.01u
CH0
100k
8
0.01u
IC714
TC7W53FK(F)
8
7
10k
VCC
CH1
47k
CoMMoN
6
1
R758
R770
C717
C732
0.01u
R755
15k
C722
R737
R742
CoMMoN
IC709
TC7W53FK(F)
R733
VEE
SIDE TONE MUTE
GND
330k
A
R769
0.01u
A
5
C731
0.1u
C710
0.01u
TONE
220k
560k
C704
OPT SW
47k
C763
0.01u
AI
R768
R754
0.01u
C720
OPT9
VGS REC SEL
C708
0.1u
15
23
16
15
21
16
16
15
15
21
21
23
23
23
IFADCN
10
IFADCN
18
18
9
13
18
9
13
9
13
X53-426 6/10
AE
AF
NX-300
AG
AH
AI
SCHEMATIC DIAGRAM
CONTROL UNIT (X53-4260-XX)
R472
1
33k
0.1u
R474
C429
R489
3
MA2S111-F
0.22u
A
22k
4
SP CONTROL
D410
MA2S111-F
C438
R490
0.22u
22k
VoGND
BYPASS
VDD
IN+
Vo+
IN-
1k
6
100k
IC412
TPA6201A1DRBR
33k
C439 0.1u
0.01u
C430
1
0.1u
R475
R467
IN_oUT2
oUT_IN2
5
C427
1
R446 270k
GND
0.1u
CoNT2
C424
4
1u
100k
AUDIO
AMP
4
IN_oUT1
oUT
oUT_IN1
AF SW
IN-
SP+
5
R495
C447
R460
7
8
1k
IC409
TC7W66FK-F
5
VSS
A 3
VCC
VDD
CoNT1
IN+
2
6
R497 100k
3
1
0
2
R433
R455
C420
0.01u
AF AMP
IC408
TC75S51FE( F)
7
R484
22k
SP DRIVE
SP-
8
1u
INAMT
EXAMT
2
C437
SHUTDoWN
C450
A
C440 0.1u
D409
1k
100k
R462
1k
R457
100k
R442
A
1k
R447
IC413
TPA6201A1DRBR
AUDIO
AMP
R459
470k
R443
AF AMP SW
Q405
SSM6N16FE-F
C449
R496 100k
Q407
UMG3N
Q405
C445
0.1u
0
1000p
R471
1000p
15k
C425
VOLTAGE
REGULATOR
(AF AMP)
22k
5A
+B
R : 5.14V
Q406
2SB1132(Q,R)
Q406,407
R441
19
33A
19
33A
19
C422 10p
2
C435
R487
3
0.22u
A
22k
4
SHUTDoWN
Vo-
BYPASS
GND
IN+
VDD
IN-
Vo+
8
7
PGND
6
5
100k
R453
R434
39k
A
R458
C436
R488
R494
100k
0.22u
22k
100k
20
23
19
EXTSP+
EXTSP22
14
22
1
2
22
14
ME
MIC
MOD
TXO
D707
DA221
100k
C785
470k
R831
0.22u
R825
GND
IN+B
4
VSS
12k
R841
560k
5
6
IN-B
3
IN+A
7
8
1
A
IN-A
oUTA
VDD
oUTB
VOX AMP
0
33k
Q705
2SC4738(GR)F
R823
10k
DETECTOR
0
68k
68k
1u
R851
R852
C781
1u
0.1u
D704
RB706F-40
C782
C767
R822
C788
15p
R832 C790
47k
10k
0.1u
C766
IN/oUT
VCC
5
1M
MIC AGC
D703
RB706F-40
1
2
oUT/IN
3
GND
IC712
TC7S66FUF
CoNT
4
0.01u
C759
A
C737
0.1u
R839
R830
0
A
R440
0.1u
100k
C799
R782
1
R789
150k
IN+
0.1u
C747
0.1u
VDD
2
R780
100k
VSS
5
3
47k
IN-
C762
47k
A
0.1u
oUT
1
R840
A
R801
R775
18k
6800p
4
120k
R788
MIC AMP
IC716
TC75W51FK(F)
DETECTOR
C739
1200p
IC706
TC75S51FE(F)
MIC AA
R787
18k
A : MIC SUM1/
B : VOX
680k
R829
C735
R783
R833
1u
VOX AMP
R795
R767 10k
C748
22k
0.1u
0.039u
A
C772
C750
47p
C791
15k
2
0.01u
R761
C721
IN+
R835
68p
2
VDD
C789
0.01u
5
A : MOD SUM/
B : MIC SUM2
3
VOX
D706
R828 RB706F-40
0
C787
C786
VSS
A
330p
IN-
oUT
68k
10k
5
IN-B
IN+B
6
oUTB
7
oUTA
1
4
MOD/MIC
SUMMING AMP
2 IN-A
3
IN+A
4
VSS
VDD
8
C744
0.01u
0.1u
IC715
TC75S51FE(F)
IC710
TC75W51FK(F)
C728
22k
R816
1
C736
2
IN-A
oUTA
VDD
oUTB
IN+A
IN-B
7
8
3
4
VSS
6
IC705
TC75W51FK(F)
IN+B
5
C718
1500p
R757
22k
47p
A
A
R744
DETECTOR
C775
R820
27k
0.022u
VOX
R812
100k
DI
R813
4.7u
5.6k
33k
C801
/SCSW
0
R786
100k
R794
330p
47p
C730
22k
R796 C758 CN712
C749
R762
C800
1500p
MODULATION
LPF
MOD SMF
R784
R763 22k
4.7u
MM
C757 CN711
R764 22k
0.1u
R836
C792
47k
1u
R837
C793
68k
0.1u
R834
R838
C794
0
560k
0.1u
A
Q706
2SA1832(GR)F
MM
SCSW(MIC)
MIC SW
19
16
15
21
21
21
DTI
16
15
TXI
16
15
23
23
23
IFADCN
IFADCN
18
18
13
13
9
18
9
X53-426 7/10
9
13
AJ
AK
AL
AM
AN
NX-300
SCHEMATIC DIAGRAM
CONTROL UNIT (X53-4260-XX)
SWITCH UNIT (X41-3720-10)
CN23
14
AGND
A 6_/KEYI0
13
BL_SB
12
R22 1k
6_KEYO1
11
R23 1k
6_KEYO0
10
R20 1k
6_/KEYI0
R21 1.2k
BL_SB
6_KEYO1
6_KEYO0
R25 1.2k
6_KEYO2
6_/KEYI1
9
BL_SB
9
R24 1k
6_KEYO2
8
R26 1k
6_/KEYI1
7
SP-
6
SP-
5
SP+
4
SP+
3
EMC
2
ME
1
A
L2
C16
SP+
100p
SURGE
ABSORPTION
C17
D19
D18
HZC6.8-E
D18,19
100P
L1
SP-
A
R846
MIC
SHIFT
SW
A
3.32V
Q707
2SJ243-A
CN24
A
PTT RF OPT
CONTROL
D21
NNCD6.8G-A
CN405
1
L4
1k
2
L5
EXTSPD12
R28
1SS416
1k
4
L6
R30
100
D14
1SS416
ME
9
3
5
L7
6
R31
7
1k
8
R32
D414
5V
VOLTAGE REGULATOR (50U)
9
100
TX LED SWITCH
L8
L3
4
D22
DA221
C34 100p
C36 6800p
C33 100p
C31 100p
1k
R547
A2
GND
4
PTT
PF
OPT
E
5V
TXD
RXD
NC
2
1k
3
4
D415
1SS416
A
RX LED
SWITCH
VCC
G1
A1
G2
Y2
Y1
GND
A2
8
7
6
5
BER_CLK
C464
/SCSS
TXD
RXD
RXD0
RXD CONTROL
D23
TXD CONTROL
A
0.01u
DUAL BUS
BUFFER
BER_DATA
BER_EN
Y2
3
R546
A
BFSX2
ME
D22
IC418
TC7WH125FUF
1
BER_EN
EMC
5
6
G2
Y1
7
8
VCC
A1
2
IC417
TC7WH126FK
G1
1
0.01u
C452
oUTY
GND
C30 100p
C29 100p
1u
C446
4
INA
DUAL BUS
BUFFER
IC415
SCTXD
14
SURGE
ABSORPTION
C453
0.01u
3
2
INB
VCC
5
1
100
MSW
A
47k
LEVEL
CONVERTER
100 13
SP-
D17
IC417
2 INPUT
AND
GATE
R33
SP+
D23
DA221
R34
D17
EMZ6.8N
1SS416
C38 100p
VoUT
NoISEBYPASS
TXD0
RXD0
13
DSR
GND
2
C443 3
IC415
TC7SET08FU-F
Q411
SSM6N16FE-F
100k
R491
1SS416
10k
R502
R500
47k
D16
R483
0
RTS0
D414
10k
Q411
5UC
PFKEY
RXD3
R478
470
R19
8.2k
0
R468
R18
/PTT
/UDET
CTS0
R503
100
A
A
11
R35 12
0.01u
CoNTRoL
IC411
NJM2880U105ZB
1
D15
1SS416
C441
1u
D13
1SS416
VIN
5
+B
A
10
A
SSW
UNIVERSAL CONNECTOR
D20
NNCD6.8G-A
R29
EXTSP+
EMC MSW SSW
CONTROL
A
C37 1000p
C32 100p
C35 1000p
A
C28 100p
A
C27 1000p
REVERSE
CURRENT PREVENTION
Q4
SSM3K15TE(F)
C26 1000p
D12-16
470p
C15
A
C25 1000p
MIC
SHIFT
CONTROL
C24 1000p
4.7k
0.1u
CN22
C23 1000p
R844
1k
C796
R843
A
100k
R27
1u
MIC
Q5
2SJ347F
C797
MIC
MUTE
C14
1.8k
R847
100k
C798
10u10
+
A
470
R845
C795
0.01u
100k
R842
33A
SP
470p
C13
0
470p
R40
6KEY
16
19
5A
33M
9
0
R477
16
MM
19
19
15
15
21
21
16
15
21
13
23
23
IFADCN
IFADCN
18
Side_1,Side_2,Side_G
9
23
18
18
9
9
13
X53-426 8/10
AO
AP
NX-300
AQ
AR
AS
SCHEMATIC DIAGRAM
CONTROL UNIT (X53-4260-XX)
IC405
4
C419
4.7u
1000p
R431
SHDN
5
470k
R452
470k
FB
C469
VIN
470k
R451
4
470k
R449
10k
560k
R448
MA2S111-F
R437
470k
Q404
SSM3K15TE(F)
470k
A
R450
470
150k
R791
R444
3
2
D407
CE
VSS
NC
1u
C751
VoUT
1u
C742
1
REVERSE
CURRENT
PREVENTION
R445
1u
5A SW
Q403
2SA1955A-F
SB2
C421
3.82V
1u
C468
C411
A
SB2 SW
7.55V
A
L704
1
VIN
470k
7.5V
VIN
5
3
47k
C414
VOUT
2
0.01u
5
3
1SS388F
R549
3.31V
3
SW
GND
1
IC708
XC6204B502PR
4.99V
D701
1SS301F
VSS
33A
33A
100k
Q401
SSM6N16FE-F
6800p
C413
CE
VSS
NC
2
1
10u
4
VIN
5
VoUT
1u
IC405
XC6205B152PRN
C410
R454
D417
IC406
XC6204B332M
SB1
LEVEL CONVERTER
R435
R436
33A
CONTROL
VOLTAGE REGULATOR (33A)
470k
A
10
5A
CE
100k
Q402
SSM6N16FE-F
100k
A
NC
R439
VOLTAGE REGULATOR (5A)
IC406
4
100k
A
R725
15M
R438
R456
2
3.82V
VOLTAGE REGULATOR (15M)
15M
+B
L409
A
1.5V
L402
BooST
6
D406
HRB0502A
C418
IC407
LT1616ES6-PBF
0.01u
68k
1SS388F
220p
C417
C470
R424
10u
D405
33k
3.82V
1u
1u
C409
L702
1
VIN
VOUT
3.82V
C412
5
47k
C467
33M
33M
1SS388F
R548
2
R425
VSS
3
C415
10u10
+
C416
CE
NC
1000p
22u
0.01u
4
3.284V
DC/DC CONVERTER
L401
L410
D416
IC404
XC6204B332M
+B
D405,406,IC407
33M
CONTROL
VOLTAGE
REGULATOR (33M)
A
A
5A
SB2
A
A
SB2 SW CONTROL
BATT
/BINT
/PSW
SB1
PGND
0
SBC
R432
SBC
PGND
19
19
33A
IFADCN
15
15
15
21
21
21
9
9
9
F701
CN710
POW
0.25A
OPT6
19
OPT6
TXI
L706
18
C701
RXEI
21
P10
P07
A1
P06
R726 100k
26P_TD
RXD2
R724 100k
R722 100k
R721 100k
R720 100k
R719 100k
RXEO
TXO
OPT2
R730
470
12
11
DTI
9
OPT9
8
OPT8
7
OPT7
P05
P03
P02
P04
6
1M
1M
R732
1M
R731
1M
R729
R728
1M
R723
1M
A
OPT5
OPT10
OPT4
26P_TD
26P_RD
18
9
X53-426 9/10
23
21
20
OPT7
19
OPT11
18
OPT8
17
DTI
16
OPT9
15
5V
14
13
OPT1
23
TXO
OPT2
12
OPT3
IFADCN
23
22
AO
CN709
A
RXEI
RXEO
4.7u
L701
23
24
AGND
AI
OPT6
OPT5
OPT4
OPT3
OPT2
OPT1
25
TXI
C703
AO
R727
21
OPT8
OPT11
10
10
15
OPT11
26P_TD
18
19
OPT7
26P_RD
A
5
A2
1
A
GND
INT
4
22
24
R718 100k
14
13
P13
15
P16
P15
P14
P11
IC701
VCC
P01
R420
0
SDA
I/O CONTROL
23
/OINT
P12
3
9
20
SCL
2
100k
R717
I2SDA
19
P00
I2CCK
16
17
21
15
P17
A0
18
0.1u
26
OPT6
A
AI
11
AGND
10
AGND
9
OPT5
8
OPT10
7
OPT4
6
NC
5
26P_TD
4
26P_RD
3
OPT3
2
OPT1
1
AT
AU
AV
AW
SCHEMATIC DIAGRAM
AX
NX-300
Note : The components marked with a dot ( ● ) are parts of layer 1.
CONTROL UNIT (X53-4260-XX)
DC SW
DC SW
POWER SUPPLY
CN402
7.49V
Q414
EMD12
BATT INT
0
7.49V
R493
+B
Q415
EMD12
A
A
6.05V
1
2
VoUT
VIN
LED_R
4
3
IFC
10k
/SAVE
A
I2CCK
7.46V
A
/5TC
D412
1SS301F
R469
DC SW
VOLTAGE
REGULATOR
7.49V
R481
470k
10k
470k
R465
I2CSDA
Q412,413
DC SW
CONTROL
IC416
S-812C31BPI-G
3.32V
Q413
2SA1955A-F
A
T_/R
TV2
ASSIST
RTC BATT
CONTROL
1
VIN
NC
oN/oFF
2
VoUT
VIN2
3
10k
R485
1SS416
Q409
2SA1955A-F
C465
VAGC
1000p
5RC
TCXO_MOD
6
21
RSSI
C454
A
DC SW
CV
C466
1u
R513 1k
SBC
3
4
R515 1k
/SAVE
5
R516 100
I2CCK
6
/5TC
7
I2CSDA
8
R517 1k
R518 100
R519 1k
SBC
9
R520 1k
/T_R
10
R521 1k
TV2
11
R522 1k
ASSIST
12
R523 1k
TV1
13
R524 1k
VAGC
14
R525 1k
5RC
15
R526 1k TCXO_MOD
16
PGND
17
RSSI
18
PGND
19
R527 1k
R528 1k
CV
A
PGND
15
R486
Side_G
R480
0.01u
A
SDO1
A
Side_2
33k
R498
0.01u
∗R849
/PCS_RF
9
C451
22k
1.33V
R499
VINVIN+
VSS
3
2
1.33V
C432
Side_1
W_/N
C444
5
VoUT
IF AMP
1
10k
0.01u
R482
C434
IC410
MCP6021-E/OT
A
4
A
27k
IFADCN
/PTT
∗R848
10
VDD
33A
DSW
0.01u
APC
/APCSW
A
15
15
21
21
9
9
VCO_MOD
THP
PLD
RFAGC
TX-RX UNIT : OPTION BOARD SECTION (X57-7370-10) (B/2)
CN737
SCK1
AGND
26
POW
25
OPT6
24
TXI
23
RXEI
22
RXEO
21
TXO
20
OPT2
19
OPT7
18
OPT11
17
OPT8
16
DTI
15
OPT9
14
5V
13
AGND
12
NC
11
NC
10
AGND
9
DGND
8
OPT5
7
OPT10
6
OPT4
5
NC
4
26P_TD
3
26P_RD
2
OPT3
1
OPT1
26P RD
POW
OPT6
AGND
OPT10
TXI
RXEI
RXEO
OPT3
OPT2
OPT7
OPT11
OPT8
DTI
OPT9
DGND
oPT5
POW
OPT4
OPT9
OPT1
TXO
26
+B
27
NC
28
NC
29
AGND
30
31
R530 100
Side_G
32
R531 100
Side_1
33
R532 1k
W_/N
34
R533 100
SDO1
35
R534 100
Side_2
36
R535 100
/PCS_RF
37
R536 1k
/DSW
38
R537 1k
APC
39
R538 1k
/APCSW
40
R539 1k
VCO_MOD
41
R540 1k
THP
42
R541 100
R542 1k
R543 100
PLD
43
RFAGC
44
SCK1
R544 1k
A
45
GND
46
S_DET
47
GND
48
NC
IF_DET
49
50
X53-4260-XX R848
-10
K
0
-11
K3
NO
R849
NO
0
oPT11
oPT8
RXEI
DTI
RXEo
RXEO
OPT3
25
+B
TXI
RXEI
DTI
24
+B
oPT7
TXI
OPT8
+B
oPT6
OPT5
OPT10
23
oPT4
OPT6
OPT11
NC
oPT1
POW
OPT7
22
oPT3
5V
AGND
21
NC
oPT2
OPT1
OPT5
20
AGND
PTT
R545 100
DGND
OPT2
OPT4
S_DET
A
R529 100
oPT10
DGND
TXO
15
2
IFC
3.24V
Q410
SSM3K15TE(F)
1
/EMG
LED_R
2.98V
A
LED_G
R514 1k
6800p
A
1k
D411
R479
RTC BATT
CONTROL
CN401
D413
D413
31BU
1SS388F
4
A
TV1
VSS
A
1u
C448
470k
R492
Q412
SSM3K15TE(F)
5
3.32V
10u
10u
3.3k
3.32V
C433
C431
R473
SCTAMI
R511 1k
R512 100
TX-RX UNIT(X57-7370-10) (A/2)-CN900
470k
R464
10k
D408
1SS301F
R461
R466
CN404
LED_G
/EMG
NC
A
470p
RESET
C442
SB1
IC414
XC61CC5602NR
Q408
EMD12
DC/DC
CONVERTER
CONTROL
VSS
DC SW
D408
oPT9
TXo
5V
5V
26P TD
81
X53-426 10/10, X57-737 (B/2) 1/1
AY
AZ
NX-300
BA
BB
BC
SCHEMATIC DIAGRAM
TX-RX UNIT (X57-7370-10) (A/2)
THP
CN900
3
LED_R
0
C905 47p
LED_R
C906 47p
IFC
1
/SAVE
6
I2CCK
7
/5TC
I2CCK
SBC
C912 47p
+B
/T_R
5RC
TV2
0.22u
RSSI
21
GND
22
NC
R430
23
NC
0
24
+B
25
+B
26
+B
27
+B
D902
50T CONTROL
PTT
C951
GND
31
2
47k
47p
30
1
R908
C925
NC
3
VIN
VoUT
GND
oN/oFF
33C
4
NP/VREF
3
R : 3.285V
T : 59.4mV
PTT
SBC
1k
R : 4.974V
T : 4.987V
R : 4.35mV
T : 4.99V
Q905
2SA1955A-F
IC900
TC75S51FE(F)
D902
HSC119
29
R : 3.32V
T : 3.35V
5
R929
R : 3.27V
T : 62.3mV
NC
1
VOLTAGE
REGULATOR(33C)
CV
C923 47p
NP
C965
CV
470k
GND
20
28
2
R432 0
19
VoUT
/SAVE
1k
IN+
VDD
5
Q905
VSS
IN-
R922
1k
4
oUT
50T CONTROL
50T
1u
C971
C922 47p
R915
RSSI
GND
IC903
TK71733S
1
C952
18
R927
2
R : 4.97V
T : 5V
R431 0
1000p
C954
GND
GND
R : 4.97V
T : 5V
0.22u
CONTROL UNIT(X53-4260-XX)-CN404
17
4
CoNT
0.22u
C970
C956
TCXO_MOD
C920 47P
VIN
3
R : 4.974V
T : 4.25V
W_/N
2
R : 4.977V
T : 5.038V
Side_1
50R
SWITCH
35
SDO1
36
Side_2
37
/PCS_ RF
38
/DSW
SDO1
470k
W_/N
R911
C928 47p
C929 47p
Side_2
50R
R918
R : 5.5mV
T : 4.81V
C930 47p
R : 0.314V
T : 70mV
Q902
SSM6L05FU-F
5RC
1k
R : 3.28V
T : 68.5mV
0.47u
34
/5TC
Side_G
C927 47p
R916
Side_1
470k
C977
Side_G
33
2
50T
SWITCH
C926 47p
32
1000p
6
C919 47p
TCXO_MOD
1u
VAGC
C918 47p
16
C957
5RC
5
1u
15
C958
VAGC
1000p
14
C955
TV1
C917 47p
1000p
TV1
VOLTAGE
REGULATOR(50C)
IC902
TK11250CUCB
4
1000p
R : 7.49V
T : 7.26V
C916 47p
C964
C915 47p
0.22u
ASSIST
C968
TV2
12
470p
11
0.22u
C914 47p
13
LR
C969
/T_R
10
R : 6.57V
T : 79mV
LED_R
1u
SBC
10
R902
R903
820
470p
I2CSDA
LG
D900
B30-2278-05
390
470p
C944
/5TC
I2CSDA
9
R900
C901
C910 47p
8
Q900
UMG9N
LED_G
/SAVE
C908 47p
R : 100mV
T : 6.38mV
C961
5
TX/RX LED
TX/RX LED
SWITCH
IFC
C907 47p
47k
4
Side_2
C963
Side_1
R920
Side_G
47k
5
/EMG
R921
Side_2
50C
R928
2
47p
4
C946 47p
3
Side_1
LED_G
C976
2
Side_G
C945 47p
SIDE 2
GND
PTT
C943 47p
PTT
LED_G
C904 47p
C913 47p
PTT
SIDE 1
1
1
CN901
1
S1
SWITCH UNIT
(X41-3710-10)
C931 47p
Q903
SSM6L05FU-F
ASSIST
45
SCK1
46
GND
47
S_DET
48
GND
49
NC
50
IF_DET
C939 47p
C940 47p
Q904
DC/DC
CONVERTER
SWITCH
C941 47p
R901
470k
L901
68u
33
IC901
XC9101D09AKR
1SR154-400
2.5A
REVERSE
PROTECTION
0.1u
VSS
LSEN
VoUT/FB
VIN
CC/GAIN
CE/SS
CLK
DC/DC
CONVERTER
8
7
6
5
22k
3
4
150k
0
1u
C950
4.7u16
+
C953 R914
C949
1u
C948
4
L900
D901
470p
C900
F900
10
2
EXT
R926
1
470p
R : 7.23V
T : 7.06V
R907
470p
470p
C902
S
C947
R904
0
1000p
C903
150C
C962
R905
IF_DET
R909
X57-737 (A/2) 1/4
R : 14.28V
T : 14.32V
Q904
SSM5H01TU
0
47p
82
1k
R : 3.276V
T : 3.331V
SCK1
C942
CN902
R913
R : 5.1mV
T : 55.4mV
1u
RFAGC
SB3
SWITCH
3
C966
22p
44
PLD
R910
C938 47p
R906
C937 47p
1u
C974
PLD
R : 7.478V
T : 7.338V
Q901
SSM6L05FU-F
C972
43
R : 7.494V
T : 7.353V
C936 47p
12k
C967
THP
VCO_MOD
1k
R925
330k
42
/APCSW
C935 47p
IFC
180p
R923
VCO_MOD
APC
C934 47p
470k
41
R917
/APCSW
R919
470k
APC
40
50IF
470k
39
50IF
SWITCH
R912
/DSW
C933 47p
1u
C973
T : 4.974V
/PCS_RF
C932 47p
3
4
BD
BE
BF
BG
BH
NX-300
SCHEMATIC DIAGRAM
TX-RX UNIT (X57-7370-10) (A/2)
THP
THP
50T
R : 1.1V
T : 1.27V
C588
Q505
2SC5636
270
470p
C559
150k
18n
R550
R : 0.79V
T : 0.81V
5p
5p
10
10p
R521
12n
C550
47p
C537
C553
470p
R : 4.94V
T : 4.98V
3p
L504
C558
C543
C525
L513
/T R
1
R549
50C
TX
10p
BUFFER AMP
50C
+B
+B
100k
R500
2
100p
0.1u
C527
1
R519
100p
100p
0.1u
C528
C516
4.7k
C511
10u
R567
R504
100k
4
100p
10
C522
1k
VCC
GND
Max out
C526
25
Clock
/CS
Mod in
24
19
C521
3
Fin
21
VCCcp2
23
Fvco
10
4
R523
8
7
NC
/OSC AC GND
OSC
9
11
10
OSCout
VCC SOC
12
GND OSC
VCC digital
/Fvco
R522
5
LD/PS1
/Fin
Data
C513
100p
17
CPout2
6
CPout1
VCCcp1
0
R574
IC502
PLL IC
C523
3
SDO1
INPUT-
TCXO_MOD
INPUT+
0.01u
VCC cp2
20
R505
0
10p
C509
10p
16
LD/PS2
L598
5
100k
470p
R501
0.1u
C502
0.1u
C503
V-
V+
3
15
4.7u
R506
47k
1 OUTPUT
2
14
R502
120k
IC501
LMC7101BIM5
DC AMP for
TCXO MOD
13
L599
18
TCXO MOD
C500
0.01u
100p
C506
oUTPUT
X500
19.2MHz
33C
C515
0.01u
10
L500
GND
50T
C508
VCC
100p
C501
C505
R503
VC
10
C514
10
0.01u
1
ADDR
SMBDAT
R572
3
2
C512
0.01u
GND
R570
0
ALERT
C504
6
I2CSDA
VDD
0.01u
5
TEMP SENSOR
SMBCLK
22
IC500
LM73CIMKX-0
4
I2CCK
R514
33C
/PCS_RF
SCK1
PLD
R511 10
C517 100p
R512 10
C518 100p
R513 10
C519 100p
19.2M
R : 4.15V
T : 18mV
D507,511,516,517
470p
C577
L525
220n
R559
180
Q508
2SK508NV(K52)
4p
C571
0.5p
C568
220n
L518
BUFFER AMP
R : 0.96V
T : 0.43V
R564
R : 4V
T : 4.03V
C586
150k
7p
47k
R563
C584 470p
27n
100
T/R
SWITCH
R : 3.25V
T : 9.7mV
1k
470p
R562
4.7u
C578
L523
470k
Q510,511
1.5k
RIPPLE FILTER
10u
2.2k
0.1u
RIPPLE
FILTER
R568
R : 4.26V
T : 6.94mV
R : 0.14mV
T : 4.08V
C572
18k
120k
R603
C602
220k
R : 0.15mV
T : 1.84mV
C582
R558
R : 1.4V
T : 4.38V
L528
R : 1mV
T : 4.17V
Q511
2SJ347F
Q510
SSM6L05FU-F
470k
470p
C587
470p
220n
180
C585
L526
Q509
2SK508NV(K52)
R : 4.27V
T : 4.28V
R565
470p
C580
0.5p
R561
2p
Q512
2SC5636
C583
C579
4p
0.75p
1SV278F
C574
C570
R : 2.5mV
T : 1.01V
100k
47k
47k
R601
5
R670
R602
VSS
C576
VCO
OSCILLATION
R599
R554
R : 4.978V
T : 5.06V
1k
47p
0
6
C600
0.1u
1u
C601
VCO_MOD
C555
4
18n
Q507
2SC5383-T111
2
3
100k
100k
R547 C554
0.1u
R546
C542
470k
220n
5p
TX
MODULATION
IC504
TC75W51FUF
8
1
VDD
7
R600
10M
R555
R552
270k
L527
L524
D519
100p
180k
R539
R548
100p
R : 1.11V
T : 18mV
APC
APC
47p
R534
INPUT-
47k
100p
C562
1u
D505
BYPASS
DIODE
27p
0.5p
D516
D517
220n
L517 220n
1SV282-F
L515
D507
1SV325F
100p
4700p
C546
0
C567
470p
220n
220n
1k
R520
C529
1u
C524
4.7k
Q512
0.5p
VCO
OSCILLATION
D519
0
R566
4
INPUT+
ASSIST
3
V-
2 V+
22
C581
C565 L520
D511
OP AMP
(VCO MOD/APC)
5
R533
1 OUTPUT
3
C520
R515
D501
HSC119
R : 14.33V
T : 14.41V
C536
IC503
LMC7101BIM5
Q503
2SC5383-T111
150C
D505
DA221
DC AMP for VCO TUNE
R : 13.73V
T : 13.82V
22n
D518
HSC119
C557 R576
FREQUENCY CONTROL
R : 14.34V
T : 14.43V
56p
R560
C573
5p
R : 2.5mV
T : 4.2V
1SV282-F 1SV282-F
L519
L509
C548
R545
0
0
R542
C541
0.047u35
+
C539
R535 10u20
+
150
0
RIPPLE
FILTER
L521
TX VCO
R543
D501,Q503
D514
220n
220n
L516
D506
L514
C547
10k
R541
1SV325F
1k
47k
R530
1SV282-F
C566
390
R536
50IF
0
D515
470p
D510
1SV282-F 1SV282-F
220n
100p
470p
0
RX VCO
L503
R538
0
C535
0.15u35
+
0
C556 R575
1k
R532
R527
L508
R537
R531
100p
C534
50R
R544
L522
220n
FREQUENCY CONTROL
CV
Q504
2SK879-F (Y)
68k
C533
R529
D506,510,514,515
CN500
C575
5p
BUFFER AMP
R557
CV
2
3
50R
50IF
4
4
150C
X57-737 (A/2) 2/4
BI
BJ
NX-300
BK
BL
BM
SCHEMATIC DIAGRAM
TX-RX UNIT (X57-7370-10) (A/2)
100k
-t
470p
TH600
50T
C637
THP
CN600
RF AMP
R618
R624
47k
L605
470p
6.8n
TX
15p
C670
0
R627
0
H : 0.62V
L : 0.42V
10k
R620
0
C623
120
L603
L604
15p
15n
R626
470p
C691
0.1u
100
C618
15n
L615
R622
470p
R623
H : 4.65V
L : 4.64V
C614
18n
470p
0.1u
7p
330
7p
L602
C615
C690
R617
C671
470p
180
4.7k
R612
LOCAL
SWITCH
47
C613
C621 R628
22
0.1u
D600
R608
+B
APC PROTECT
R658
IN1+
IN2-
VEE
IN2+
Q610
EMD5
7
6
APC SWITCH
5
R : 13mV
T : 3.71V
470p
Q607
DTC144EE
APC SWITCH
Q605
SSM3K15TE(F)
R : 7.11V
T : 1.52V
Q608
2SK1824-A
R657
APC
SWITCH
0
R : 18mV
T : 3.92V
APC SWITCH
/APCSW
R : 1.59V
T : 1.52V
R661
3
R660
AUTO POWER
CONTROL
270k 270k
470p
C636
10k
R641
150k
R664
oUT-B
47k
4
8
VCC
IN1-
100k
oUT1
3
470p
1
2
C653
0.39
0.39
R647
0.39
R645
R642
100
0.1u
10p
C651
/DSW
150k
IC600
TA75W01FUF
R649
APC
SWITCH
R : 3.294V
T : 40mV
470k
C641
R648
R : 61mV
T : 110mV
R633
C626
D604
HZU2ALL
470p
C622
APC SWITCH
R659
10k
56k
470
R655
270k
R656
HSC119
R654
270k
R669
47p
Q604
2SC5383-T111
1.8k
470p
D608
R653 R652
R629
27k
R : 0.65V
T : 140mV
C672
R651
R : 3.274V
T : 11.2mV
C631
6.8u10
+
D605
HZU5CLL
560
R : 63mV
T : 128mV
C640
R635
0
0.1u
470p
470p
C619
HSC277
D600
33C
C617
50T
+B
C612
50C
C611
HSC277
470p
R616
D601
0
Q601
2SC5636
C610
R609
7p
22n
C607
4.7k
2.2k
L600
C689
470p
330
C605
470p
R606
10k
R : 1.48V
T : 1.36V
C604
6.8k
R604
R605
10p
R607
Q600
2SC5636
C603
R : 2.5mV
T : 2.37V
LOCAL SWITCH
R610
R : 1.81V
T : 1.89V
TX
R : 4.75V
T : 4.8V
BUFFER AMP
Q602
2SK3077F
R : 5mV
T : 0.64V
RF AMP
1st LO
19.2M
0
0.1u
8
C711
9
C720
0.1u
10
10p
R709
11
12
AMAGCINPUT
FMIFINPUT
AGCAMPoUTPUT
FMIFDECoUPLING1
RFAGCoUTPUT
FMIFDECoUPLING2
RSSIoUTPUT
LIMoUTPUT
AMSW
QUADINPUT
FMDEToUTPUT
AMDEToUTPUT
R719
18
270k
VAGC
16
R721 10k
15
R722 4.7k
14
C759 0.1u
13
R725 22k
RSSI
OP AMP
(RSSI/VAGC)
10k
47p
100k
R792
47k
7
0.1u
2.2k
IN+B
VSS
IN-B
IN+A
oUTB
IN-A
VDD
oUTA
0.01u
R727
C736
IN
C792
100
0.1u
OUT
2.2k
0
R720
C727
R735
8
CF701
450kHz
R796
18k
C722
R797
47k
R717
C717
0.01u
R712
4
VIN+
5
6
R718
47
R798
IC404
TC75W51FUF
R795
10k
R : 2.03V
T : 85mV
3
VSS
VIN-
VDD
1 VoUT
2
1k
R704
5
0.1u
C723
RX
CN700
18k
IC700
MCP6021-E/OT
220
C760 0.1u
17
R726
0
R739
10k
R714
R705
C740
0.01u
0.01u
C725
0.1u
C724
10u
C719
10u
C713
CN701
R731
IN
220
22p
C728 0.1u
19
C729
10k
AMIFDECoUPLING
20
Q701
0.01u
2SC4215-F(Y)
6p
7
NoISEAMPINPUT
OUT
R737
47p
C721
NoISEAMPoUTPUT
AMIFINPUT
IF AMP
R724 100k
21
XF700
58.05MHz
C734
C739
R710
VCC
22
R : 0.697V
T : 3.6mV
C738
6
CoMPINPUT
560k
100k
C735
5
0.1u
CoMPoUTPUT
0.01u
R736
C710
0.1u
C718
MIXoUTPUT
R733
23
2.7k
C709
0.1u
GND
R738
0.1u
10
4
RFINPUT
oSC(E)
2p
0.1u
R703
oSC(B)
C737
3
C730
R730
0
2
24
0.47u
1
C790
IN
R : 4.694V
T : 5mV
IC701
TK10931VTL-G
R : 2.66V
T : -0.8V
CF700
450kHz
OUT
C703
470p
FM IC
2nd LOCAL
BUFFER AMP
10
C732
68p
L780
Q700
2SC5108(Y)F
0.01u
0.01u
220
47p
R728
47n
1.8u
C715
10p
L704
C704
330k
100n
L703
C712
7p
C706
C707
C701
0.01u
R571
0
100p
R702
C733
C708
R : 0.731V
T : 3.6mV
C700
L705
R : 4.849V
T : 5mV
68p
560
R701
50R
L701
560n
4
3
2
1
R794
R : 1.81V
T : -100mV
10k
50IF
150C
4
X57-737 (A/2) 3/4
VAGC
50R
RSSI
IF_DET
BUFFER
4
150C
BN
BO
BP
BQ
BR
NX-300
SCHEMATIC DIAGRAM
Note : The components marked with a dot ( ● ) are parts of layer 1.
R : 0.5mV
T : 1.615V
L613
4T
C665
C667
2p
1.5p
L614
4T
82k
4p
8p
C669
470p
5p
C668
R667
ANT
C666
C662
L611
220n
270
R666
270
0.01u
0.01u
L612
4T
100p
D607
HVC131
R665
0.1u
C648
1u
C649
C645
C663
1p
D606
HVC131
4p
100p
C664
0
C975
C660
7.5p
C654
12p
18p
C650
C647
7T
47p
L609
150p
L610
C652
C642
39p
C639
47
0
33k
R644
R646
10k
470p
R639
470p
C635
18n
220
L606
L607
10p
1u
C632
R636
470p
C628
10p
47
R650
H : 2.33V
L : 1.626V
10k
R631
470p
R632
33k
C625
R630
H : 2.8V
L : 1.96V
C627
TX
C629
Q603
R : 14mV RD01MUS1-T113
T : 2.81V
150p
C634
470p
C643
RF DRIVE AMP
R663
1
ANTENNA SWITCH
Strip line
C661
RF FINAL AMP
Q606
RD07MVS1BT122
R : 12mV
T : 2.34V
7.5p
TX-RX UNIT (X57-7370-10) (A/2)
C646
0
C630
R634
2
50T
470p
100k
0.1u
Q705
3SK318
R : 1.99V
T : 45mV
68k
R779
C786
4
470p
180
C785
0.5p
R771
470p
68
R : 0.87V
T : 42.7mV
C782
R775
RF AMP
R770
470p
R778
L717
220n
R : 4.89V
T : 47mV
C789
2p
C810
D711
470p
1u
C784
0
C783
R772
0
8.2n
3p
L715
C774
9p
C776
100k
470p
D704
R760
1SV286F
8.2n
4p
L714
C770
3
100k
C788
18p
HVC131
C809
8.2n
HVC131
4p
D709
C803
470p
C779
C777
0.01u
L716
L725
R768
R765 C778
0
C775
D703
100k
9p
C772
1p
1SV286F
1.5p
L713
1p
470p
100k
470p
9p
C764
C767
D702
R757
C773
1SV286F
R749
180k
C765
C750
0
0.01u
150k
MIXER
470p
220
C748
R744
470p
R : 2.96V
T : 46mV
R747
R : 1.29V
T : 43mV
9p
680
C746
R743
47
470p
R740
0
ANTENNA SWITCH
R : 4.54V
T : 46mV
C768
8.2n
R750 R752 C758 R753
0
0.01u
C745
D702-704
VARI-CAP TUNE
R759
L711
100k
R : 3.14V
T : 46mV
270n
L707
C756
9p
Q703
3SK318
560n
C743
1k
R745
R : 4.53V
T : 47mV
50R
R746
CN702
BPF
L708
1st LO
10p
C747
470p
C752
470p
C744
4.7u
C742
0.01u
C741
L706
R : 4.94V
T : 4mV
C771
2p
100k
2p
4p
4.7k
R748
C753
22n
C749
R : -35mV
T : 0.808V
C755
R742
10p
18n
C751
L710
18n
C754
3p
L709
R : 4.94V
T : 3.8mV
4T
L723
+B
D706,708,710
0
1SV286F 100p
D710
100k
R790
8.2n
4p
L722
C802
33n
R791
9p
C850 L726
C811
5p
5
470p
100k
470p
C849
R788
C801
9p
C804
100k
HSC119
D705
220k
R783
1.8k
R781
0
C807
R : 6.71V
T : 13.6V
RF AGC
100
R761
R786
470k
470p
R784
R : 3.8mV
T : 42mV
R785
R : 137mV
T : 43mV
Q706
2SK1830F
C794
RF AGC
VARI-CAP TUNE
1SV286F
D706
R : 6.71V
T : 13.6V
8.2n
470p
D708
10n
1.5p
L721
0
C800
2p
9P
C798
C795
1SV286F
L720
C796
RX
R799
R780
470p
C791
10k
R773
820k
INPUT-
4
R : 69.8mV
T : 1.633V
TV1
R : 0.308V
T : 1.63V
5
100k
INPUT+
10k
3
V-
V+
R774
0.1u
4
OUTPUT
470p
10k
C799
R762
C780
INPUT-
2
R769
10k
INPUT+
1
5
V+
820k
V-
R763
OUTPUT
100k
0.1u
R758
C766
3
1u
C761
R : 14.26V
T : 14.3V
2
R777
IC703
LMC7101BIM5
R764
1
Q704
2SC5383-T111
TV2
150C
6
DC AMP for BPF
IC702
LMC7101BIM5
RIPPLE
FILTER
4.7k
R755
D700
HSC119
RIPPLE
FILTER
470p
DC AMP for BPF
R : 13.65V
T : 13.72V
R : 14.28V
T : 14.32V
C769
0
4
7
85
X57-737 (A/2) 4/4
UNIVERSAL CONNECTOR
20
1
ME
EMC
SP+
SP+
SP-
SP-
6_/KEYI1
6_/KEYO2
BL_SB
6_/KEYO0
6_/KEYO1
BL_SB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
6KEY/SP/MIC
1
AGND
6_/KEYI0
10
CHANNEL
SSW
RXD
TXD
5V
E
OPT
PF
PTT
ME
EMC
MSW
SPSP+
NC
D5
14
D3
AGND
26
SB1
+B
EN2
EN1
EN4
AGND
EN3
VOL
VOL_GND
CN23
AGND
oPT3
OPTION PCB
oPT4
oPT5
INH
MDWN
TCNT
DI
X57-737 B/2
DGND
oPT2
oPT1
SB2
C3
OPT1
OPT3
26P_RD
26P_TD
NC
OPT4
OPT10
OPT5
AGND
AGND
AI
AO
AGND
5V
OPT9
DTI
OPT8
OPT11
OPT7
OPT2
TXO
RXEO
RXEI
TXI
OPT6
POW
1
POWER SW/
AF VOL
TXI
1
CN710
RXEI
OPT1
OPT3
26P_RD
26P_TD
NC
OPT4
OPT10
OPT5
DGND
AGND
AI
AO
AGND
5V
OPT9
DTI
OPT8
OPT11
OPT7
OPT2
TXO
RXEO
RXEI
TXI
OPT6
POW
CN737
SToN
5A
86
33A
CN403
RXEo
TXo
LCD ASSY
NX-300
INTERCONNECTION DIAGRAM
SWITCH UNIT
SELECTOR
X41-372
1
/CS
CN1
/RES
AO
/WR
D0
D1
D2
D4
CONTROL PCB
D6
X53-426
D7
VDD
VSS
VDD
V1
V2
V3
V4
20
V5
CN405
CN701
NX-300
INTERCONNECTION DIAGRAM
CN900
LED_G
/EMG
LED_R
IFC
/SAVE
I2CCK
/5TC
I2CSDA
SBC
/T_R
TV2
ASSIST
TV1
VAGC
5RC
TCXO_MOD
GND
RSSI
GND
CV
GND
NC
NC
+B
+B
+B
+B
NC
NC
GND
PTT
Side_G
Side_1
W/N
SDO1
Side_2
/PCS_RF
/DSW
APC
/APCSW
VCO_MOD
THP
PLD
RFAGC
SCK1
GND
S_DET
GND
NC
IF_DET
50
ANT
SWITCH UNIT
X41-371
CN901
TX-RX PCB
PTT
PTT
GND
X57-737 A/2
Side_G
Side_1
Side_1
Side_2
Side_2
-
1
LED_G
/EMG
LED_R
IFC
/SAVE
I2CCK
/5TC
I2CSDA
SBC
/T_R
TV2
ASSIST
TV1
VAGC
5RC
TCXO_MOD
PGND
RSSI
PGND
CV
AGND
NC
NC
+B
+B
+B
+B
NC
NC
AGND
PTT
Side_G
Side_1
W/N
SDO1
Side_2
/PCS_RF
/DSW
APC
/APCSW
VCO_MOD
THP
PLD
RFAGC
SCK1
GND
S_DET
GND
NC
IF_DET
BATT
CORD ASSY
X42-334
S
1
+
CN404
50
87
NX-300
BLOCK DIAGRAM
SM5023CNDH-G
IC107
X102
18.432MHz
33A 15M 33M
IC101
IC103
Flash
ROM
SRAM
DSP
VC
TCXO
33M
BSHIFT
X53-4260-XX (Control unit)
IC102
/DRST,DCLK,/SYMTIM,
/RSSITIM,/DINT,
/SWUP,FSDET,/HINT
MCD1AF,/MCSCKAF,/MCCSAF,MCD0AF,
MCD1CN,/MCCXCN,/MCD0CN,/
MCCSRCN,MCSCKCN
BUS SW
D0~15,A0~20,/RD,/WR,/CS0,/CS2,/CS3,/CS4/HDS2,/HRDY
/LCDRST
33M
TXD0
RXD0
RTS0
CTS0
DSR
/PTT
/UDET
RXD3
ENC1
ENC2
ENC3
ENC4
/BINT
/PSW
IC703
M62364FP-F(7/8)
LCDCNT
IC403
LMC7101BIM5
DAC
N100C
Q101 2SA1832(G,R)F
Q102 2SC4617(S)
Q103 SSM3K15TE(F)
SB2 5A
IF_DET
Q704
2SC4617(S)
BPF
AMP
IC702
IC702
TC75W51FK(F)(1/2) TC75W51FK(F)(2/2)
LPF
LPF
BLC
SB2
D1,2,5,6
D9,10
5A
BLC
MM
SCSW
/AMT
STSW
EXAMT
INAMT
BEEP
TONESW
/MNDNU
5UC
AVR
BLC
Q1 2SA1362(GR)-F
Q2 2SC4617(S)
Q3 SSM3K15TE(F)
BL_SB
Q415
EMD12
Q414
EMD12
ASIC
IC108
/SCSW
AMT
IC704
TC75S51FE(F)
RXAF
LPF
LED-G
DC SW
IC707
TC7W53FK(F)
SBC
LED-R
DC SW
Q702
SSM3K15TE
33A
+B
SBC
TV1
TV2
TONE
IC703
M62364FP-F
DAC
(3/8,4/8)
SW
SDO0,SCK0
/EVCS
TONESW
RSSI , THP , VAGC , CV , S-DET
/EMG , /PTT , Side_1 , Side_2,Side_G , IFC ,
5RC , 5TC , /DSW , /APCSW,SBC , /T_R ,
ASSIST , SDO1 , SCK1 , PLD
IC706
TC75S51FE(F)
IC710
TC75W51FK(F)(1/2)
LPF
SUM
MIC
CN701 (for production)
/RINT
32K
I2CCK,I2CSDA
TO DSP
IC403
RV5C386A
IC705
TC75W51FK(F)(2/2)
MOD
RTC
I/O Expander
IC701
/OINT
LPF
CN710 26pin Option Board
KEYO 0,1,2,3
/KEYI 0,1,2,3,4
OPT1,2,3,4,5,6,7,8,11
26P_RD
26P_TD
OPT10
OPT9
DTI
AO
AI
RXEI
RXEO
TXI
TXO
POW
5A
X101 32.768kHz
88
IC410
MCP6021-E/OT
33M
IC711
TC75W51FK(F)(2/2)
ASQAPC
AVR
LCD Back Light
CN404 50pin Board to Board
RESET
ASQDET
VOX
VOL
BATT
PFKEY
12key Back Light
D3,D4
D7,D8
IC105
XC6109C29ANN
DTI from ANI
CN1 to LCD Module
IC401 TC7MZ245FK
IC402 TC7WZ245FK-F
KEY Matrix
(12key)
IC705
TC75W51FK(F)(1/2)
LPF
NX-300
BLOCK DIAGRAM
IC404
XC6204B332M
L401 , D406 , D405
IC407 LT1616ES6-PBF
AVR
DCDC
Converter
33M
+B
SBC
IC405
XC6205B152PRN
AVR
15M
D408
1SS301F
Q402 SSM6N16FE-F
DCSW
/PSW
Q401 SSM6N16FE-F
IC406
XC6204B332M
SB1
Q408
EMD12
IC414
XC61CC5602NR
RESET
/BINT
IC416
S-812C31BPI-G
AVR
33A
DCSW
SCTAM1
AVR
Q413 2SA1955A-F
Q412 SSM3K15TE(F)
DCSW
31BU
CN401
Li Battery
D412
1SS301F
SBC
Q403 2SA1955A-F
Q404 SSM3K15TE(F)
Q409 2SA1955A-F
Q410 SSM3K15TE(F)
CN403
DCSW
SB2
+B
SB1
33A
VOL
BATT
IC708 XC6204B502PR
5A
DCDC
-10V
ENC1
ENC2
ENC3
ENC4
IC403 LM2682MMX
AVR
50U
D705
RB706F-40
IC711
TC75W51FK(F)(1/2)
Rect
AMP
IC411
NJM2880U105ZB
5UC
ASQDET
CN23
APC
AVR
Q405
SSM6N16FE-F
IC703
M62364FP-F(8/8)
INAMT
EXAMT
DO
DAC
EXAMT
AMP
VOX
MUTE
IC714
TC7W53FK(F)
IC715
TC75S51FE(F)
Rect
D706
RB706F-40
VOX
AMP
IC716
TC75W51FK(F)(2/2)
OPT6
AO to VGS
CN405
RXD3
50U
Q4 SSM3K15TE(F)
Q5 2SJ347F
IC716
TC75W51FK(F)(1/2)
Q707
2SJ243-A
MUTE
AMP
MUTE
MUTE
MM
MSW
D703,704 RB706F-40
Q705 2SC4738(GR)F
Q706 2SA1832(GR)F
Q411
SSM6N16FE-F
AGC
AI from VGS
IC712
TC7S66FUF
/SCSW
EMC
MSW
SSW
PTT
PFKEY
OPT
5V
TXD
RXD
NC
MSW
/UDET
/PTT
PFKEY
IC417
TC7WH126FK(2/2)
IC709
TC7W53FK(F)
IC412
TPA6201A1DRBR
AMP
IC415
TC7SET08FU-F
STSW
DAC
DAC
VCO_MOD
SCRXD
RXD0
SUM
TXD0
SCTXD
IC703
M62364FP-F(2/8)
BER_EN
IC703
M62364FP-F(1/8)
BER_CLK
BER_DATA
TCXO_MOD
IC710
TC75W51FK(F)(2/2)
RTS0
OPT9
AI from VGS
DAC
IC409
IC408 TC75W66FK-F
TC75S51FE(F)
BEEP
SUM
INAMT
OPT10
IC703
IC703
M62364FP-F(6/8) M62364FP-F(5/8)
6key
Back Light
IC413
TPA6201A1DRBR
IC418
TC7WT125FUF
IC713
TC75W51FK(F)(2/2)
KEY
Matrix
(6key)
BL_SB
Q701 2SA1832(GR)F
MUTE
Selector
knob
6_KEYO2
6_KEYO1
6_KEYO0
6_KEYI0
6_KEYI1
Q406 2SB1132(Q,R)
Q407 UMG3N
+B
DAC
Volume
AVR
N100C
DI
89
NX-300
BLOCK DIAGRAM
X57-7370-10 (TX-RX unit)
CN900
Q507
2SC5383-T111
Ripple
Filter
Q510 SSM6L05FU
Q511 2SJ347F
50C
IC500
LM73CIMKX-0
Temp.
Sensor
33C
Q600
2SC5636
Loop
Filter
IC504
TC75W51FUF(1/2)
DC SW
SB3
SBC
TX : 450.00~520.00MHz
RX : 391.95~461.95MHz
+B
Q901
SSM6L05FU
VCO MOD
150C
Ripple
Filter
Q503
2SC5383-T111
IC503
LMC7101BIM5
ASSIST
LPF
Q904 SSM5H01TU
IC901 XC9101D09AKR
DCDC
Converter
AVR
IC902
TK11250CUCB
150C
Q700 2SC5108(Y)F
x3
CF700 450kHz
50C
50R
/SAVE
BPF
IC700
MCP6021-E10T
CF701
450kHz
IF
AMP
BPF
Q701
2SC4215-F(Y)
IC903 TK71733S
AVR
33C
IF_DET
IF AMP
IC701
TK10931VTL-G
Q902 SSM6L05FU
50R
50IF
5RC
Q903 SSM6L05FU
50IF
VAGC
DC SW
IFC
Q905 2SA1955A-F
DC SW
50T
IC404
TC75W51FUF(1/2)
RSSI
IC404
TC75W51FUF(2/2)
DC SW
SB3
/EMG
D900
/5TC
S1
IC900 TC75S51FE(F)
/EMG , LED_R , LED_G , APC ,
/DSW , /APCSW , CV , ASSIST ,
VCO_MOD , TV1 , TV2 , /T_R ,
PTT , Side_1 , Side_2 , Side_G
Q900
UMG9N
RSSI , THP , VAGC , CV , S_DET , IF_DET
90
BUFF
AMP
Q512
2SC5636
Q508,509 2SK508NV(K52)
D506,507 1SV325F
D519 1SV278-F
BUFF
D506,507,508,509
AMP
50C
D514,515,516,517
1SV282-F*4
Q505
2SC5636
CV
PLD
BUFF
AMP
VCO
Q504
2SK879(Y)F
PLL
SDO1
SCK1
/PCS RF
VC
TCXO
IC501
X500 19.2MHz
LMC7101BIM5
/T_R
IC502
VC
TCXO_MOD
T/R
SW
50C
I2CCK
I2CSDA
LED_R
LED_G
DC
SW
IF
AMP
NX-300
BLOCK DIAGRAM
TX/RX: 450~520MHz
Q603
RD01MUS1
Q606
RD07MVS1B
D606,607
D709,711
HVC131*4
T/R
SW
PreDrive
AMP
Drive
AMP
PreFinal
AMP
Final
AMP
ANT
SW
5T
Q610
EMD5
Q604
2SC5383-T111
DC SW
LPF
5T
Q602
2SK3077F
5T
Q601
2SC5636
5T
5R
D600,601
HSC277*2
DC SW
/APCSW
IC600
TA75W01FUF
/DSW
APC
LPF
+B
Q607
DTC144EE
MCF
Q605
SSM3K15TE
Filter
Q608
2SK1824-A
DC SW
ASQ
APC
IC504
TC75W51FUF(2/2)
Protect
/APCSW
IC702
LMC7101BIM5
Q703
3SK318
1st
MIXER
TUNE
Q204
3SK318
BPF
L713,714,715
RF
AMP
TUNE
D710
1SV286F
TV2
IC703
LMC7101BIM5
TV1
D706,708
1SV286F*2
XF700
58.05MHz
2SC5383-T111
Q704
Ripple
D702,703,704
1SV286F*3
1st Local : 391.95~461.95MHz
150C
TUNE
BPF
Notch
L721,722
L726
50R
+B
+
-
BATT
7.5V
CN901
S_DET
PTT
Side_1
PTT
S
Side1
Side_2
Side_G
Side2
91
92
IC108
ASIC
C709
92.5mVrms
C811
-118.5dBm
IC704
SMF
VCO
C790
64mVrms
(at MIC terminal)
C586
C603
C588
PLL
IC716
C762
47.4mVrms
C756
C607
RXLO
D600
D601
2.6dBm
IC706
125.9mVrms
IC707
IC710
Q600
Q705
LNA
92.8mVrms
SCFC
C795
-119.0dBm
Transmitter Section
-118.5dBm
RF (Center Frequency)
Receiver Section
AF (1kHz)
Q703
Q601
IC108
ASIC
DSP
IC102
IC703
C613
Q602
7.9dBm
IC408
SP Drive
XF700
C670
IC409
C634
IC703
C660
33.0dBm
2PIN-4PIN
IC703
500mVrms
CF701
CF
IC700
C451
IC410
C432
(-66.5dBm)
IC504
C562
348mVrms(W)
27.6mVrms(W)
174mVrms(N)
13.8mVrms(N)
348mVrms(W)
174mVrms(N)
VCO
To make measurements in the AF section,
connect the AC level meter.
(ANT input : -53dB,1kHz FM, 3kHz DEV (Wide))
In the RF section, use a 1000pF coupling
capacitor.
(The display shows the SSG input value
required to obtain 12dB SINAD without
local level.)
C727
(-61.0dBm)
IF2 (450kHz)
AG is set to the MIC input becomes (3kHz/1.5kHz) at 1kHz
MOD
(Wide/Narrow).
5.0W
To make measurements in the AF section, connect the
AC level meter.
In the RF section, use a 1000pF coupling capacitor.
C555
352mVrms(W)
176mVrms(N)
352mVrms(W)
176mVrms(N)
IC413
410mVrms(W)
205mVrms(N)
C438
Q606
22.6dBm
IC710
IC701
C792
(-56.5dBm)
FM IC
123mVrms
Audio Amp
C730
-103.0dBm
412mVrms(W)
206mVrms(N)
AF (1kHz)
C424
Q603
13.0dBm
IC705
Q701
IF Amp
124mVrms
C734
-119.0dBm
MCF
391.8mVrms(W)
195.9mVrms(N)
RF (Center Frequency)
C721
69.8mVrms
IC713
92.7mVrms
8.7mVrms
DAC
C758
Mixer
-105.0dBm
IF1 (58.05MHz)
NX-300
LEVEL DIAGRAM
NX-300
OPTIONAL ACCESSORIES
KNB-47L (Li-ion BATTERY PACK)
KNB-48L (Li-ion BATTERY PACK)
■ External View
■ External View
■ Specifications
■ Specifications
Voltage ................ 7.4V
Battery capacity ... 1950mAh
Voltage ................ 7.4V
Battery capacity ... 2550mAh
■ Schematic Diagram
■ Schematic Diagram
DISCHARGING TERMINALS
DISCHARGING TERMINALS
S
S
560kΩ
Thermal switch
(Breaker)
PROTECTION
CIRCUIT
PROTECTION
CIRCUIT
THERMISTOR
10kΩ ±0.5%
DIODE
S
Thermal switch
(Breaker)
T
CHARGING TERMINALS
THERMISTOR
10kΩ ±0.5%
DIODE
S
T
CHARGING TERMINALS
93
NX-300
SPECIFICATIONS
GENERAL
Models .............................................................................
Frequency Range .............................................................
Number of Channels ........................................................
Zones ...............................................................................
Max. Channels per Zone .................................................
Channel Spacing ..............................................................
Operating Voltage ............................................................
Battery Life (with KNB-48L) .............................................
K : Basic Model K3 : w / 12-key Model
450~520 MHz
512
128
250
Analog : 12.5/25 kHz Digital : 6.25/12.5 kHz
7.5V DC ± 20%
5-5-90 duty cycle
: more than 12.5 hours
10-10-80 duty cycle : more than 8.5 hours
Operating Temperature Range ........................................ –22°F to +140°F (–30°C to +60°C)
Frequency Stability .......................................................... ± 1.0 ppm
Antenna Impedance ........................................................ 50Ω
Dimensions (W x H x D) (Projections not included)
Radio only ................................................................... 2.28” x 5.02” x 1.63” (58 x 127.5 x 41.3 mm)
with KNB-47L .............................................................. 2.28” x 5.02” x 1.63” (58 x 127.5 x 41.3 mm)
with KNB-48L .............................................................. 2.28” x 5.02” x 1.91” (58 x 127.5 x 48.5 mm)
Weight
Radio only ................................................................... 8.82 oz (250g)
with KNB-47L .............................................................. 13.23 oz (375g)
with KNB-48L .............................................................. 14.29 oz (405g)
RECEIVER
Sensitivity ........................................................................ Digital @6.25kHz (3% BER) : 0.20µV Digital @12.5kHz (3% BER) : 0.25µV
Analog (12dB SINAD) : 0.25µV
Selectivity ........................................................................ Analog @25kHz : 72dB Analog @12.5kHz : 65dB
Intermodulation Distortion ............................................... Analog : 70dB (± 50, 100kHz)
Spurious Response .......................................................... Analog : 70dB
Audio Distortion ............................................................... Less than 3%
Audio Output ................................................................... 500mW / 8Ω
TRANSMITTER
RF Power Output .............................................................
Spurious Response ..........................................................
FM Hum and Noise .........................................................
Audio Distortion ...............................................................
Modulation .......................................................................
5W / 1W
70dB
Analog @25kHz : 45dB Analog @12.5kHz : 40dB
Less than 3%
16K0F3E, 11K0F3E, 8K30F1E, 8K30F1D, 8K30F7W, 4K00F1E, 4K00F1D,
4K00F7W, 4K00F2D
Analog measurements made per TIA/EIA 603
KENWOOD reserves the right to change specifications without prior notice or obligation.
2967-3, Ishikawa-machi, Hachioji-shi, Tokyo, 192-8525 Japan
P.O. BOX 22745, 2201 East Dominguez Street, Long Beach,
CA 90801-5745, U.S.A.
Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands
Via G. Sirtori, 7/9 20129 Milano, Italy
6070 Kestrel Road, Mississauga, Ontario, Canada L5T 1S8
Bolivia, 239-08020 Barcelona, Spain
Rembrücker Str. 15, 63150 Heusenstamm, Germany
Leuvensesteenweg 248 J, 1800 Vilvoorde, Belgium
(A.C.N. 001 499 074)
16 Giffnock Avenue, Centrecourt Estate, North Ryde, N.S.W. 2113 Australia
L’Etoile Paris Nord 2, 50 Allée des Impressionnistes,
Bp 58416 Villepinte, 95944 Roissy Ch De Gaulle Cedex
Unit 3712-3724, Level 37, Tower one Metroplaza, 223 Hing Fong Road,
Kwai Fong, N.T., Hong Kong
KENWOOD House, Dwight Road, Watford, Herts.,
WD18 9EB United Kingdom
1 Ang Mo Kio Street 63, Singapore 569110
A
1
B
C
NX-300
D
E
F
G
H
I
J
K
L
M
N
P
PC BOARD
Q
PC BOARD
CONTROL UNIT (X53-4260-XX) -10: K, -11: K3
Component side view (J79-0131-19)
2
O
R
S
NX-300
CONTROL UNIT (X53-4260-XX) -10: K, -11: K3
Component side view (J79-0131-19)
CN22
D3
1
2
D4
3
3
C15
D18
G
D19
S
Q4
R20
R22
R23
R24
R26
D
4
D
R21
R25
C16
C17
R40
C13
C14
L1
L2
G
S
R27 Q5
S2
1
S3
4
S4
7
S13
*
4
14
1
AGND
6_/KEYI0
BL_SB
6_/KEYO1
6_/KEYO0
BL_SB
6_/KEYO2
6_/KEYI1
SP–
SP–
SP+
SP+
EMC
ME
C5
CN23
C2
D11
L4
C35
C37
R28 C25
C27
L5
C32
L6
R31 C38
L7
C26
D12
C23
R30
C24
1
C40
R11
6
7
R406
8
D21
D20
S8
3
S9
6
S10
9
S11
#
R35
R33
D22
R19 C36
R32 C34
R34 C29
C33
4 3
R500
C30
C31
5 1
IC415
8
D15 R18
D16
L3
C452
R29
C28
D14
Q2
C10
D9
R483
D10
D13
C11
Q1
D6
R17
V5
V4
V3
V2
V1
VDD
VSS
VDD
D7
D6
D5
D4
D3
D2
D1
D0
/WR
AO
/RES
/CS
CN1
R16
C12
R14
TH1
R3
C41
R2
R1
C1
D
1
R15
7
R12
R10
R9
R8
R7
R6
R5
R4
C7
Q3
S
G
S5
2
S6
5
S7
8
S12
0
5
20
C3
3
IC1
6
5
C4
C8
4
C6
D1
D2
D5
5
D23
D17
R848
R849
R853
9
9
CN24
J79-0131-19
D7
D8
10
10
Component side
Ref. No. Address Ref. No. Address Ref. No. Address
IC1
6K
D4
3Q
D14
7M
IC415
8K
D5
5B
D15
7L
Q1
7K
D6
7B
D16
7L
Q2
7L
D7
10O
D17
9L
Q3
6L
D8
10Q
D18
4L
Q4
4L
D9
7D
D19
4L
Q5
4L
D10
7C
D20
8M
D1
5D
D11
7L
D21
8M
D2
5C
D12
7M
D22
8L
9L
D3
3O
D13
7M
D23
11
12
Layer 1
Layer 2
Layer 3
Layer 4
Layer 5
Layer 6
11
Foil side
12
13
13
64
14
65
14
A
1
B
C
NX-300
D
E
F
G
I
J
K
L
M
N
S
NX-300
C710
R742
R737
R733
C732
D
S
4
IC714
R805
1
8
5
R790 R785 C760
IC711
R803
C752
D
6
R799
C753
C764
C802
R810
R809
Q704
R808
C765
L706
7
R827
TH701
C768
C771
R826
8
D702
D705
R718
CN709
D701
C780
R819
R824
L701
24
19
R722
1
18
R721
IC701
R731
R729
6
13
7
12
R720
R719 R728
R723
R727
R791
4
S
5
R798
C755
C803
R741 C719
Q701
CN706
GND
G
R743 C804
CN705
MAN
DOWN
C716
C734
R771
R778
C705
1
Q703
C708 C707
IC702
R732 R717
1
C763
R811 R739
CN704
RSSI
R736
C713 R751 R850
CN703
PTT1
CN708
RXD
8
4
C701
4
5
R806
R747
5
R797
C720
5
R815
4
5
C723
4
8
IC709
C706
8
C746
1
R818 R807
R748
C704
R769
R770
R779
R768 R754
R749
CN707
TXD
3
C731
C778 R814
CN702
PTT2
C775
R816 R812
R813
C801
IC703
1
1
IC715
R820 R825
C785
3 4
25 OPT6
RXEI
TXO
OPT7
OPT8
OPT9
AGND
AI
AGND
OPT10
NC
26P_RD
1 OPT1
C737
R726
R730
24
2
C717 C722
R755
R758
Q702 G
IC713
R716
R714
R715
R711
Q705
R706
R704
R702
1 5
R752
R756
R759
C740
C743
C738
CN711
C757
8
C777
G
D
R786
R784
R775
R796
C735
R787 C749
R783
R821
CN710
5
1
C742
IC708
3
C751
C728
POW 26
TXI
RXEO
OPT2
OPT11
DTI
5V
AO
AGND
OPT5
OPT4
26P_TD
OPT3 2
R724 C718
8
R761
R757 R744
C779
2
20
S
12
R800
R802
C761
R804
C709
1
19
R822
Q706
R833 R835
C789 C791
C772
F701
R794
C750
R765
C756
R709
R707
R705
R703
R701
R713
R712
R710
C712
R745 R750
R793
C724
C727
R766 C725
4 3
5 1
C726
D704
D
C787
R831
13
C758
C736 R764
1
5
L101
R738
5
CN712
R782
IC705
9
4
C703
R404
C150
4 3
4
L715
IC710
C739
R763
C730
R746 C714
CN701
D707 D706
R740
8
4
C747 R780
R762
C800
L716
L102
1
R767
C721
IC706
R789
R788 C748
C137
C149
R801
1
R753 C745
R828
R841 C744
R795
3 4
6 1
C133
C144
C136
5
R840
C759
IC712
1 5
R417
S
R427
R428
R429
R420
C799
+
R191
+
R182 R419
C155 R173 R426
R171 R184 R440
R189 R186
R188 C147
C160 C138
C131 C139
8
4
IC707
8
1
R735
4
R852 R851
IC716
C762
R175
R178
R177
R176
C151
C152
R168
IC108
R138
L714
1
D404
C145
R170 R163 C140
C161
C142
L708
C159
10
6
5
C143
R834 C796
C788 C786
R413
IC411
1
R838 C794
R839
R154
R155
R153
IC106
X101
C110
R167
C135
R412
G
Q707
R837 C793
CN106
R192
R190
R181
R183 CN105
C154
C148
R130 CN104
C141
C153
C146
R174
R470 C428
R463
R468
D
5
C782 C781
G
CN103
C101
IC101
C106
C105
S
R823
R411
D703
R844 R843
CN102
D402
C797
1
D401
R410
R829
R845
C792
R836 C790 R832 R830
IC105
3 2
4
C124
R149
C767
R847
C795
R846 R842
C122
R120
CN101
IC103
C108
R401
R403
R405
R414
R415
R416
R144
R418
C766
C798
S
G
Q103
D
+
R108
D101
R158
1
L8
C157
C156
R157
R187
R185
R172
R180
R432
R160
R161
5
CN405
3
C118
C102
R101
R156
3
3 4
Q411
14
4
1 6
NC
RXD
TXD
5V
E
OPT
PF
PTT
ME
EMC
MSW
SP–
SP+
SSW
C446
+
1
+ C405
R159
4
1
IC107
6
R162 C130
1
R491
R477
8
R102
C109
R103
C113
R107
R121
C117
R143
R126
4
C114
R105
R110
R119
R148
R122
R123
C116
R129
R131
C134
R166
X102
R165
5
L710
L717
L713
+ C404
R112
R106
D403
D415
C406
C407
R111
R113
R115 C107
C104
R116 C112
R118 C111
IC104
4 3
5 1
IC102
C403
1
5 1
R117 R114
C115
C103
L705 C158
5
R478
5
C123
L709
4
C443
IC404
D102
8
IC418
Q404
3
1
C453 C464 R546
IC403
4
D
R128
R127
IC109
4 3
4
8
R132
R140
R139
R193
C120
R137
R145
R142
C121
R141 R135
C119
IC417
C408
R409
S
L712
R502
R503
4 1
IC414
G
L711
IC401
C401
R493
2
3 4
Q413 R438
R492
9
R447
3
3
Q402
1 6
R150
R136
1
1
R482 R480 C432
4
6 1
IC416
C448
C442
D414
R454 R451 C466
Q403
R444
10
5
50
CN403
R194
R147
R146
1
20
L707 R547
49
C454
R545
C451 R498
R542
D416
CN402 C441
C444 R486
R538 R540
R534 R536
1 5
R548 L702
R448
R530 R532
IC410
C467 C412
R449
3 4
R528
R450
R527 R526
R499 C434
R445
R524 C465
C421
4 3
Q401
R520 R522
6 1
C409
R516 R518
D407
R437
R435 R436
R439
R512 R514
S
D Q412
R469
G
R461
R481
C433
R465
D412
D408
R452
C431
R456
R473
EN2
+B
SB1
EN3
AGND
EN4
EN1
VOL_GND
VOL
33M
S
IC402
11
Q408
4 3
6 1
C456 10
R504 C455
R507 C462
R508 C463
R509
R510 C457
1
R506 C461
C460
C459
R501
D411
D413
R485
G
Q410 D
2
R479
Q409
4
8
CN404
6 1
7
C413
4 3
R466 R464
L403
R725
6 1
Q415
R459
–
R544
R541
R537
R533
R529
CN401
1
+
5
C Q406
IF_DET
NC
S_DET
GND
SCK1
GND
RFAGC
PLD
THP
VCO_MOD
/APCSW
APC
/PCS_RF
/DSW
Side_2
SDO1
W/N
Side_1
Side_G
PTT
GND
NC
+B
NC
+B
+B
NC
+B
NC
GND
GND
CV
GND
RSSI
5RC
TCXO_MOD
VAGC
TV1
ASSIST
TV2
SBC
/T_R
I2CSDA
/5TC
I2CCK
/SAVE
IFC
LED_R
/EMG
LED_G
6
4 3
R133
4
R407
R441 R408
R443 C402
E
R523
R519
R515
R511
Q414
4
3
B
R543
R539
R535
R531
IC406
3
IC405
5
R525
R521
R517
R513
R549 C468
1
Q407
4 3
6 1
C425
D417
L402
C469
C419
R431
IC407
3 4
R471
C450
C447
6
6 1
5
1
R462
R434
C417
R424
1
C449
C445
4
R455
R458
R453
C418
L409
R484
D410
R497
C430
IC408 R475 1
8
4 3
C439
IC412
5 1
R487
4
5
C420 R433
C435
R494
C436 R488
L704
C414
C411
R442
Q405
4 3
R457
IC409
1
D405
R425
C424
R446
C422
D406
4
5
R496
C429
R474 1
8
C440
IC413
R489
4
5
C437
C438 R490
R495
Q101
Q102
C410
IC704
R402
5
8
C416
R
CONTROL UNIT (X53-4260-XX) -10: K, -11: K3
Foil side view (J79-0131-19)
D409
L401
Q
R777
C715
C711
R467
R460
C427
C470
L410
C415 +
P
PC BOARD
R472
3
O
PC BOARD
CONTROL UNIT (X53-4260-XX) -10: K, -11: K3
Foil side view (J79-0131-19)
2
8
H
J79-0131-19
10
10
Component side
Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address
IC101
5K
IC404
9D
IC417
6F
IC711
6S
Q404
9E
Q701
6Q
D404
5M
D416
9E
IC102
5I
IC405
3F
IC418
6F
IC712
6N
Q405
3E
Q702
4R
D405
4B
D417
5C
IC103
4K
IC406
5C
IC701
7Q
IC713
4Q
Q406
5E
Q703
6R
D406
4C
D701
8R
IC104
3H
IC407
5B
IC702
5R
IC714
5R
Q407
4E
Q704
7R
D407
9D
D702
8R
IC105
4L
IC408
4C
IC703
7P
IC715
5P
Q408
7C
Q705
5O
D408
7C
D703
4O
IC106
8I
IC409
3C
IC704
3P
IC716
5N
Q409
7A
Q706
5O
D409
3D
D704
3O
IC107
7I
IC410
8E
IC705
9N
Q101
3K
Q410
8A
Q707
4N
D410
4D
D705
8R
IC108
7K
IC411
9F
IC706
7N
Q102
3K
Q411
8G
D101
3L
D411
7A
D706
6O
6O
IC109
6G
IC412
4D
IC707
3P
Q103
3L
Q412
9D
D102
6G
D412
8C
D707
IC401
5F
IC413
3D
IC708
9Q
Q401
8D
Q413
9C
D401
4M
D413
7A
IC402
4F
IC414
9A
IC709
4R
Q402
8C
Q414
6C
D402
5M
D414
6F
IC403
7F
IC416
8A
IC710
6N
Q403
8D
Q415
6C
D403
5M
D415
7F
11
12
13
66
14
Layer 1
Layer 2
Layer 3
Layer 4
Layer 5
Layer 6
11
Foil side
12
13
67
14
A
1
B
C
NX-300
D
E
F
G
H
I
J
K
L
M
N
O
P
PC BOARD
Q
R
PC BOARD
TX-RX UNIT (X57-7370-10) (A/2)
Component side view (J79-0128-19 A/2)
S
NX-300
TX-RX UNIT (X57-7370-10) (A/2)
Component side view (J79-0128-19 A/2)
2
2
C649
C630
C646
C969
4
IC900
1 5
3
R920
S1
C961
C958
6
C956
IC902
4
Q902
OPT6
OPT11
POW
R910
R905
C948
OPT1
R907
R902
R909
OPT5
C908
+
C904
C906
C910
C915
R432
C919
C926
C930
C934
D900
C912
C917
R431
OPT2
C950
L901
8
OPT4
DGND
OPT3
R903
1
1
4
AGND
OPT10
B
E
B
Q900
C
C
IC901
C953
5
Q904
3
4
R900
R914
1
9
J79-0128-19 B/2
8
C962
C974
5
LED_G
/EMG 2
LED_R
IFC
/SAVE
I2CCK
I2CSDA
/5TC
SBC
/T_R
TV2
ASSIST
TV1
VAGC
5RC
TCXO_MOD
RSSI
GND
GND
CV
GND
NC
NC
+B
+B
+B
+B
NC
NC
GND
PTT
Side_G
Side_1
W/N
SDO1
Side_2
/PCS_RF
/DSW
APC
/APCSW
VCO_MOD
THP
PLD
RFAGC
SCK1
GND
S_DET
GND
IF_DET 50
C973
C907
R923
C967
R926
R925
R430
C933
C929
C937
C966
R928
C914
C905
C916
C918
C920
C922
C927
C923
C931
C935
C939
R901
7
OPT7
R913
R911
R918
S D
G G
D S
49 NC
C942
6
OPT8
Q901
S D
G G
D S
C977
R916
C925
C928
C932
C936
C938
C941
R797
C729
C963
1
3
C761
R758
3
C940
C723
R792
R795
C951
C955
CN900
R735
C722
5
RXEI
DTI
C949
R904
5
C947
C766
5
RXEO
OPT9
R908
D902
R906
4
1
1
C713
R725
C902
8
IC404
4
R794
R703
R709
C724
CN701
R731 VAGC
C720
C760
13
4
R721
12
C736
1
IC700
3
C735
R714
C711
C759
R722
6
L500
R726
R736
CN700
RSSI
C792
R719
IC701
C709
X500
1
4
IC500
3
R727
C710
R738
S
R798
R796
C727
IC702
R705
5
C717
C622
R763
R704
R629
C601
R712
TXO
TXI
Q704
4
5V
C957
D604
R764
R601
5
R922
R755
D700
C626
R603
C602
R602
4
R720
R501
C500
C502
C501
R505
R927
Q604
R635
TX-RX UNIT
(X57-7370-10) (B/2)
C964
F900
C900
+
8
C555
R717
R570
C509
C946
CN901
L900
+
D605
IC504
R921
D901
C903
1
R547
R718
C503
3
IC501
1
C505
CF701
24
1
R642
R661
Q905
G
4
5
R502
C508
R572
68
S
D
C672
D608
R600
R724
R500
C971
C943
C913
8
R670
Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address
IC404
10G
IC700
8H
Q504
3D
Q610
5I
D501
7B
D900
8P
IC500
9B
IC701
9E
Q505
6C
Q704
6L
D505
4B
D901
5M
5P
IC501
8C
IC702
7K
Q507
7C
Q900
9P
D518
7D
D902
IC502
7E
IC900
4P
Q604
6J
Q901
7N
D604
7J
IC503
5C
IC901
9O
Q605
3I
Q902
7M
D605
6I
IC504
7H
IC902
5N
Q607
4I
Q904
9O
D608
5I
IC600
4J
Q503
7B
Q608
4J
Q905
4N
D700
6L
13
R659
R660
R633
J79-0128-19 A/2
12
1
C600
L599
R546
R548
L598
R567
R512
R511
C517
D518
R557
Q507
R504
C511
C513
C945
R664
C631
C554
C518
R513
R552
C562
C516
C653
3
C976
Q608
R657
PTT 1
GND
Side_G
Side_1
Side_2 5
C636
R655
5
R656
R669
R555
C528
R554
R506
C523
C519
25
19
18
12
13
C522
R519
7
IC502
C512
C525
C521
C526
R549
C703
11
C527
R521
R550
C558
Q505
R515
C572
C535
C514
1
R523
C728
C506
10
C559
C515
C504
9
R522
R534
C529
R520
L513
R514
R503
R654
R658
L504
6
R574
8
C543
C553
C524
C520
4 3
4
C537
C550
R536
C539
3
D501
6 1
Q610
5
IC503
Q503
TH600
C637
R539
D505
C536
R527
+
7
R533
1
R535
6
R566
C542
C641
IC600
Q607
R532
+
R653
4
R641
R538
5
R651
C534
R531
L503
C541
4
R648
R652
R645
R530
+
C640
R647
G
D
S
Q605
3
R649
R537
C651
C628
G
Q504
S
D
R529
C533
CN500
CV
R541
14
1
10
C972
Component side
Layer 1
Layer 2
Layer 3
Layer 4
Layer 5
Layer 6
11
Foil side
12
13
69
14
A
1
B
C
NX-300
D
E
F
G
H
I
J
K
L
M
N
O
P
PC BOARD
Q
R
NX-300
PC BOARD
TX-RX UNIT (X57-7370-10) (A/2)
Foil side view (J79-0128-19 A/2)
S
TX-RX UNIT (X57-7370-10) (A/2)
Foil side view (J79-0128-19 A/2)
2
2
C650
R543
C546
L517
L515
R576
D516
D511
D
C570
R599
L520
D519
C574
G
R563
C584
C585
R564
Q510 R568
7
R562
C582
R558
C588
C586
C603
C578
L523
C706
9
L701
Q700
R702
R571
R733
C701
R701
Q701
C734
CF700
10
R710
C718
R730
C721
R737
C707
L703
C700
C719
C708
C704
C790
R728
L704
L707
L780
C712
L705
C725
C738
XF700
C715
C732
C733
C739
R740
C745
Q512
L528
R565
R607
R605
S D
G G
D S
6
C580
8
C730
C743
R743
C746
D507
R608
C604
Q600
C740
L708
Q509
S
R560
C577
S
R612
R606
C576
L527
Q511
G
D
S
D601
R739
L526
C571
D
Q508
G
R616
CN702
BPF
R745
G S
Q703
G D
R561
D514
L525
C689
R604
R609
C756
C748
L516
D510
R559
C587
C607
C610
L524
C583
C605
C565
5
C581
L600
Q601
C690
L514
R575
D506
R624
C744
L522
R628
R623
C614
C613
R742
R610
L709
C749
C755
D702
R757 C765
C670
S G
Q602
D S
C671
C737
D703
C771 R759
C623
R620
L603
R626
R618
C567
L521
L711
R747
R749
L605
R631
R630
C625
R632
R627
R634
C619
C747
C754
R752
R750
C764
L713
C767
C770
C772
C775
C758
R748
R753
D704
R746
L714
C776
R760
C627
R650
CN902
C768
C773
R622
L615
L602
L519
C579
C611
R744
C752
C575
4
D517
C573
C615
R617
C557
C566
C568
C617
D600
C750
C774
L715
L717
C778
R765
C786
R770
L710
R761
C742
C782
C753
R769
R771
C629
R636
L606
C634
R644
C639
C621
L509
R639
L609
C652
R762
C769
4
C741
C785
G S
Q705
G D
C784
70
C777
R778
C751
S
L706
C789
13
R783
C791
11
J79-0128-19 A/2
Foil side
12
G
D
S
R780
Layer 1
Layer 2
Layer 3
Layer 4
Layer 5
Layer 6
11
R781
Component side
C780
C788
R799
Q706
C779
R775
L720
C795
C901
R784
3
C783
R772
C796
5
R768
L721
D705
10
1
IC703
R779
C944
R773
C800
C798
R919
9
R777
R786
L716
D706
C794 R785
S D
G G
D S
R917
C807
C802
L604
C612
R774
R912
Q903
RXD1
C691
R791
L722
8
TXD1
C647
L723
26P_RD
OPT1 1
C804
D708
R788 C801
2 OPT3
C968
NC
C965
OPT10
D709
C803
C799
DGND
OPT4
D606
D607
NC
OPT5
26P_TD
D710
C970
AGND
+
C809
7
C811
NC
AGND
C850
L726
5V
R790
L518
3
C548
D515
G
CN600
R542
C556
S
C618
C810
OPT9
C849
OPT8
DTI
5
OPT11
R544
L508
D
Q603
C662
D711
1
OPT7
IC903
OPT2
G
Q606
L725
4
TXO
R915
3
RXEO
CN737
RXEI
C954
OPT6 25
TXI
C952
6
R929
26 POW
D
C663
C664
C632
C635
C660
L612
C666
5
R646
L611
C665
J79-0128-19 B/2
C547
R545
C642
R666
R665
C668
C643
C648
C654
R663
C975
C661
L613
C669
R667
TX-RX UNIT
(X57-7370-10) (B/2)
4
C667
L614
C645
L610
L607
3
14
1
Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address
IC703
8H
Q600
7P
Q703
9K
D511
4R
D601
8O
D706
8E
IC903
7D
Q601
7N
Q705
10F
D514
4Q
D606
5H
D708
8E
Q508
5P
Q602
6N
Q706
10E
D515
4P
D607
5G
D709
6G
Q509
6Q
Q603
4N
Q903
8D
D516
4R
D702
10I
D710
7E
Q510
7R
Q606
4L
D506
4P
D517
4R
D703
10I
D711
6F
Q511
6R
Q700
9R
D507
4Q
D519
5R
D704
10H
Q512
7Q
Q701
10O
D510
4Q
D600
7M
D705
10E
12
13
71
14
NX-300
SCHEMATIC DIAGRAM
TX-RX UNIT (X57-7370-10) (A/2)
13
8
9
12
8
12
BLC
BLC
9
13
12
9
13
13
9
13
BLC
9
13
18
18
9
13
13
18
13
18
9
13
18
9
13
18
9
18
9
13
13
13
Side_1,Side_2,Side_G
9
13
18
18
18
9
9
9
REVERSE
PROTECTION
3
3
4
4
50IF
150C
4
82k
R667
0.1u
4p
8p
C669
100k
C788
5p
C668
4p
C666
470p
C661
1p
C662
L611
220n
270
R666
270
R665
C664
7.5p
C975
7.5p
12p
C654
18p
C650
C648
0.01u
C649
0.1u
1u
0.01u
C645
C646
4T
L723
R778
Q705
3SK318
470p
C789
2p
RF AMP
R770
R : 1.99V
T : 45mV
68k
R779
C786
470p
180
C785
R771
0.5p
470p
68
R : 0.87V
T : 42.7mV
C782
R775
1u
470p
R : 4.89V
T : 47mV
470p
8.2n
3p
L715
C774
C810
D711
0
C784
R772
0
C783
R768
100k
18p
HVC131
C809
8.2n
HVC131
D709
4p
C803
L725
L717
220n
C779
0.01u
470p
L716
C777
9p
100k
470p
1SV286F
8.2n
R760
C775
C776
0
D704
4p
L714
C770
9p
C772
D703
100k
470p
1SV286F
8.2n
9p
C764
1.5p
L713
C767
D702
100k
470p
1SV286F
R757
1p
R759
100k
180k
R749
150k
1p
CN700
RSSI
RIPPLE
FILTER
R : 14.26V
T : 14.3V
2
3
4
150C
150C
4
OUTPUT
C791
V+
INPUT+
10k
INPUT-
2
4
3
OUTPUT
R : 0.308V
T : 1.63V
V-
5
V+
INPUT+
R : 69.8mV
T : 1.633V
INPUT-
4
0
D710
1SV286F 100p
8.2n
100k
R790
33n
R791
9p
C850 L726
C811
5p
470p
C849
4p
L722
9p
C807
R : 6.71V
T : 13.6V
C802
C804
D708
VARI-CAP TUNE
1SV286F
8.2n
9P
C798
1SV286F
10k
R762
470p
C769
V-
1
820k
10k
Q704
2SC5383-T111
5
R773
R794
R : 1.81V
T : -100mV
1
R777
IC703
LMC7101BIM5
100k
2.2k
oUTA
R : 14.28V
T : 14.32V
RIPPLE
FILTER
R774
0.1u
VDD
1
DC AMP for BPF
IC702
LMC7101BIM5
0.1u
R727
2
C780
C792
DC AMP for BPF
R : 13.65V
T : 13.72V
3
820k
0.1u
IN
IN-A
R763
0
OUT
oUTB
4
0.1u
CF701
450kHz
C727
IN+A
C766
8
VSS
IN-B
47p
100k
R792
47p
47k
C722
R797
7
IN+B
100k
C735
5
R736
10k
IC404
TC75W51FUF
R795
10k
R : 2.03V
T : 85mV
R796
470p
0.01u
0
1.5p
L721
C796
RF AGC
OP AMP
(RSSI/VAGC)
6
0.01u
R712
0
R780
4.7k
IC700
MCP6021-E/OT
R786
470k
100k
R725 22k
R784
R : 3.8mV
T : 42mV
470p
13
R : 137mV
T : 43mV
Q706
2SK1830F
D706
R : 6.71V
T : 13.6V
R788
C759 0.1u
470p
C801
14
10n
100k
R722 4.7k
0
C800
2p
470p
15
C795
470p
AMDEToUTPUT
16
R721 10k
L720
R785
AMSW
QUADINPUT
FMDEToUTPUT
C760 0.1u
R799
RF AGC
10k
17
C729
50IF
150C
ANTENNA SWITCH
R765 C778
C794
LIMoUTPUT
220
RX
BUFFER
4
C773
C799
RSSIoUTPUT
0.01u
RX
HSC119
RFAGCoUTPUT
FMIFDECoUPLING2
VAGC
R739
D705
FMIFDECoUPLING1
CN701
R731
270k
18
220
C740
220k
AGCAMPoUTPUT
C728 0.1u
R719
19
IN
R783
AMAGCINPUT
FMIFINPUT
C725
0.1u
10u
4
5
0
50R
0
0.01u
470p
C750
220
C748
R744
470p
R : 2.96V
T : 46mV
MIXER
R747
R : 1.29V
T : 43mV
9p
680
C746
R743
47
0
1.8k
AMIFDECoUPLING
20
OUT
R737
0.01u
Q701
2SC4215-F(Y)
18k
R705
50R
ANT
R : 4.54V
T : 46mV
C768
C771
R748
22n
L711
270n
R740
470p
D702-704
VARI-CAP TUNE
R750 R752 C758 R753
R781
NoISEAMPINPUT
IF AMP
R724 100k
21
R726
APC
3
C647
L610
4p
C755
C756
9p
100k
10p
C754
3p
R746
Q703
3SK318
R : 3.14V
T : 46mV
0
0.01u
C745
50R
1k
BPF
R745
100k
10p
C747
4.7u
C744
470p
470p
CN702
560n
1st LO
C751
2p
6p
NoISEAMPoUTPUT
AMIFINPUT
22
C734
C739
CoMPINPUT
VCC
560k
22p
CoMPoUTPUT
0.01u
T/R
SWITCH
10
7T
47p
L609
150p
150p
C652
C642
C643
39p
33k
47
C639
R646
R644
10k
470p
470p
18n
C630
C635
R639
10p
1u
C632
R636
220
L606
470p
L607
10p
C627
C629
2p
C765
470p
0.01u
4.7k
R : 4.53V
T : 47mV
C743
C732
220
C733
R728
C753
XF700
58.05MHz
C738
MIXoUTPUT
23
R : 0.697V
T : 3.6mV
2p
GND
R733
C737
0.1u
C703
RFINPUT
oSC(E)
C730
R730
0
27n
100
470p
C749
10k
12
C600
0.1u
R742
100
11
10k
RIPPLE FILTER
1.5p
R : -35mV
T : 0.808V
R761
10p
Q510,511
R : 0.14mV
T : 4.08V
2p
L614
4T
D706,708,710
24
R714
RIPPLE
FILTER
18n
L708
L707
10
C724
47k
C720
C719
470k
R709
R : 3.25V
T : 9.7mV
C752
R : 1.59V
T : 1.52V
R661
8
10u
R568
C742
R : 4.94V
T : 4mV
L705
7
0.1u
oSC(B)
0.47u
C721
0
9
R : 4.26V
T : 6.94mV
R563
470p
C582
R710
C711
C713
4.7u
C578
R565
C587
470p
C585
220n
180
C584 470p
100k
6
C717
220k
L528
C580
470p
R561
2p
L526
0.75p
C574
C570
1SV278F
R599
5
R670
C710
0.1u
5
0.1u
VIN-
VSS
R : 1mV
T : 4.17V
4
C718
VDD
6
R : 0.15mV
T : 1.84mV
C709
0.1u
1k
4
0.5p
C567
D519
Q507
2SC5383-T111
2
3
R : 1.4V
T : 4.38V
10
R704
470k
R : 4.978V
T : 5.06V
IC504
TC75W51FUF
1
8
VDD
7
470k
3
0.1u
0.1u
R558
C790
R703
Q511
2SJ347F
Q510
SSM6L05FU-F
1
2
IN
0.1u
INPUT-
R : 4.27V
T : 4.28V
TX
MODULATION
OUT
C723
10M
R566
VCO
OSCILLATION
HVC131
R : 4.694V
T : 5mV
IC701
TK10931VTL-G
R : 2.66V
T : -0.8V
CF700
450kHz
0.5p
Q509
2SK508NV(K52)
L710
18n
1k
R539
C583
R562
5
R : 2.5mV
T : 1.01V
L523
OP AMP
(VCO MOD/APC)
18n
47k
R552
270k
5p
C667
FM IC
2nd LOCAL
BUFFER AMP
Q512
2SC5636
D519
R554
C562
1u
27p
220n
D516
D517
220n
L517 220n
1SV282-F
D507,511,516,517
D505
C576
C565 L520
1SV282-F 1SV282-F
L519
0
L515
D507
4700p
C546
470p
1SV325F
100p
C548
220n
0
R542
0
D511
C557 R576
220n
1.8u
0.01u
10k
47
470p
APC
SWITCH
0.01u
L706
R664
47k
R660
270k 270k
R656
470p
Q608
2SK1824-A
0
R : 18mV
T : 3.92V
L709
R : 4.94V
T : 3.8mV
R : 7.11V
T : 1.52V
R657
APC SWITCH
L704
47p
Q700
2SC5108(Y)F
L527
L524
C579
4p
R : 2.5mV
T : 4.2V
R632
R631
33k
C625
R630
470p
C653
47p
R653 R652
470p
C636
10k
56k
270k
R651
C640
0.39
0.39
R647
0.39
R645
R642
IN2+
AUTO POWER
CONTROL
C651
/DSW
R : 13mV
T : 3.71V
Q605
SSM3K15TE(F)
100n
7p
47n
68p
7p
C715
10p
L780
C586
150k
C704
330k
C712
R564
R571
0
L703
68p
C700
C706
L613
4T
C665
APC SWITCH
5
Q607
DTC144EE
APC SWITCH
100p
R702
C628
10k
15p
C623
120
L603
15n
R626
470p
L604
C691
0.1u
100
C618
15n
L615
R622
470p
R623
18n
0.1u
C631
6.8u10
+
D605
HZU5CLL
100
R633
0.1u
470p
VEE
6
0
0.1u
470p
C619
470p
C617
C612
HSC277
D600
C622
D604
HZU2ALL
C626
R641
150k
C708
C707
C701
0.01u
220n
L525
R559
VCO
OSCILLATION
560
R701
470p
C577
C575
5p
R : 4V
T : 4.03V
180
4p
C571
0.5p
C568
220n
L518
D514
D515
1SV282-F 1SV282-F
220n
L516
220n
L514
D506
1SV325F
100p
Q508
2SK508NV(K52)
R : 0.96V
T : 0.43V
L612
4T
100p
22
R618
C614
330
L602
C690
R617
470p
180
C611
470p
R616
4.7k
C610
R612
4.7k
R610
2.2k
22n
L600
C689
0.1u
R607
470p
330
C605
10k
470p
R606
R605
100p
C528
C516
0.01u
4.7k
R567
R506
47k
1k
GND
Max out
24
25
Mod in
Clock
/CS
21
23
22
19
R523
8
7
NC
/OSC AC GND
OSC
9
11
10
OSCout
GND OSC
VCC SOC
12
C513
100p
VCC digital
Data
R505
0
10p
C509
TCXO_MOD
C547
0.5p
C663
D607
Q610
EMD5
7
C741
470p
C637
R604
C604
270
6.8k
150k
18n
R550
10
L513
R521
470p
470p
R549
5p
C550
C559
7
5
IN2-
R769
DC/DC
CONVERTER
8
6
IN1+
R755
CLK
20
0.01u
10p
0
10k
R541
C541
0.047u35
+
0
L509
BYPASS
DIODE
4
INPUT+
R : 1.11V
T : 18mV
L701
560n
R : 0.731V
T : 3.6mV
47k
VoUT/FB
CC/GAIN
CE/SS
10
R514
C512
0.01u
R570
0
C504
0.01u
100p
C508
C506
1k
R529
470p
R530
47k
68k
R531
C535
0.15u35
+
LSEN
VIN
oUT-B
D700
HSC119
3
4
VSS
4
IN1-
R649
R : 4.849V
T : 5mV
BUFFER AMP
D606
HVC131
8
VCC
oUT1
3
2.7k
0
EXT
1
2
100k
L900
2.5A
2
150k
10p
R764
F900
10
3
Q512
C581
100p
+B
10k
TXo
R907
4
1
R909
V-
22
R717
R904
0
S
1 OUTPUT
2 V+
C573
0
0
IC600
TA75W01FUF
50R
VIN+
DTI
470k
C641
1st LO
VSS
47p
IC503
LMC7101BIM5
R : 13.73V
T : 13.82V
IC901
XC9101D09AKR
R : 7.23V
T : 7.06V
R659
10k
19.2M
10u
IF_DET
RXEI
oPT9
R536
R917
R : 14.33V
T : 14.41V
D505
DA221
DC AMP for VCO TUNE
Q503
2SC5383-T111
150C
0
C942
CN902
R : 14.34V
T : 14.43V
150C
470
R655
270k
R560
5p
1.5k
50
IF_DET
RIPPLE
FILTER
56p
22n
R557
NC
D501,Q503
1k
R : 14.28V
T : 14.32V
Q904
SSM5H01TU
68u
R913
L521
D518
HSC119
GND
49
L901
DC/DC
CONVERTER
SWITCH
C941 47p
R901
48
R545
FREQUENCY CONTROL
R : 3.276V
T : 3.331V
C566
TX VCO
R : 7.478V
T : 7.338V
SCK1
Q904
S_DET
50IF
L522
C572
oPT8
C940 47p
R574
100k
CV
C533
390
1SV282-F
18k
GND
C939 47p
C519 100p
RX VCO
120k
46
100p
C534
0
0
47k
SCK1
R : 5.1mV
T : 55.4mV
5p
C537
100k
R500
470p
R501
0.1u
C502
0.1u
C503
C500
1u
0
C539
R535 10u20
+
150
0.47u
R916
470k
C977
R538
470p
R601
RFAGC
45
SB3
SWITCH
3
HSC119
R654
/APCSW
3
L503
R543
Q901
SSM6L05FU-F
C518 100p
R513 10
D510
C556 R575
R555
44
PLD
C505
C501
0.22u
C970
1000p
1u
C971
1000p
470p
C969
C961
47k
R920
47k
R921
C963
470k
100p
C964
0.22u
C968
C965
0.22u
1u
C957
1u
C958
0.22u
R : 7.494V
T : 7.353V
THP
PLD
0
220n
0
VCO_MOD
C558
47p
C976
S1
C955
1000p
C956
1000p
C952
1000p
C954
R915
470k
R532
IFC
1k
L508
1k
47p
VCO_MOD
/APCSW
C935 47p
470k
C945 47p
oPT11
R919
APC
C938 47p
47
5V
R911
22k
43
R849
NO
0
470k
/APCSW
50IF
SWITCH
R912
0.01u
R498
R499
C444
VINVIN+
VSS
3
2
C951
40
/DSW
1.8k
R669
R648
R : 61mV
T : 110mV
R : 3.294V
T : 40mV
H : 2.33V
L : 1.626V
C660
50T
R758
TXO
0.22u
4
5
VDD
VoUT
OPT1
APC
0
1u
26P RD
OPT9
/DSW
39
42
TXI
RXEO
OPT3
38
C933 47p
50
R544
R537
R527
1k
R : 3.28V
T : 68.5mV
50IF
R634
0
R738
OPT1
C932 47p
C937 47p
RXEo
5RC
Q903
SSM6L05FU-F
T : 4.974V
/PCS_RF
Q604
2SC5383-T111
C672
470p
D608
C736
OPT3
1
/PCS_ RF
C936 47p
X53-4260-XX R848
-10
K
0
-11
K3
NO
50R
C931 47p
37
TX
H : 2.8V
L : 1.96V
+B
0.01u
2
1
Side_2
TX
R663
R658
APC
SWITCH
100p
10
C522
6.8n
R627
H : 0.62V
L : 0.42V
100
2
OPT1
Side_2
R519
R624
47k
R735
OPT3
36
oPT6
RXEI
DTI
C930 47p
1
2.2k
26P_RD
R : 5.5mV
T : 4.81V
0.1u
C527
R720
26P_TD
3
SDO1
C526
100p
18k
4
3
SDO1
C521
2
R718
4
35
R : 0.65V
T : 140mV
3
26P_TD
26P_RD
OPT4
49
C929 47p
R918
3
1 VoUT
NC
NC
IF_DET
50R
SWITCH
10
2
OPT4
5
48
W_/N
50R
4
47
6
5
47
GND
Q902
SSM6L05FU-F
R522
R798
6
NC
S_DET
Side_1
R : 0.314V
T : 70mV
CV
Q504
2SK879-F (Y)
2.2k
OPT4
46
W_/N
C928 47p
oPT7
TXI
OPT8
GND
Side_1
34
41
POW
OPT5
OPT10
45
33
H : 4.65V
L : 4.64V
L605
470p
0.1u
R512 10
220n
FREQUENCY CONTROL
R603
OPT10
SCK1
2
R : 4.977V
T : 5.038V
5
0.1u
26P_RD
7
OPT5
DGND
A
44
Side_G
CN500
C602
OPT4
7
8
DGND
R544 1k
RFAGC
/5TC
C927 47p
470p
APC SWITCH
100p
R : 4.15V
T : 18mV
R602
OPT10
OPT10
8
9
R543 100
43
C926 47p
LD/PS1
VCC
C517 100p
D506,510,514,515
1k
OPT5
9
R542 1k
PLD
Side_G
C615
7p
C670
0
APC PROTECT
R : 63mV
T : 128mV
R629
27k
19.2M
R600
AGND
R541 100
R545 100
oPT5
OPT6
OPT11
42
32
PTT
VCCcp1
Fin
R511 10
BUFFER AMP
47p
AGND
41
THP
PTT
50T CONTROL
R : 4.974V
T : 4.25V
0
NC
10
VCO_MOD
R540 1k
31
R : 3.285V
T : 59.4mV
VCCcp2
C671
7p
R620
0
2
100k
11
R539 1k
GND
Fvco
C613
15p
50T
6
CPout1
/Fin
/Fvco
SCK1
PLD
1u
A
OPT5
A
11
10
40
30
R922
1k
4
oUT
CPout2
/PCS_RF
100k
R547 C554
L701
AI
AGND
/APCSW
R538 1k
NC
IN-
2
50T
SWITCH
16
17
SDO1
Q905
VSS
LOCAL
SWITCH
R : 3.274V
T : 11.2mV
3
R548
NC
39
29
3
C511
10u
C555
12
APC
47k
VDD
R504
100k
0.1u
12
R537 1k
47p
IN+
5
R546
AO
38
2
33C
D600
R608
IC502
C523
C542
4.7u
/DSW
oPT1
POW
OPT7
R536 1k
oPT4
5V
AGND
37
oPT2
OPT1
OPT5
36
/PCS_RF
NC
R908
5
180k
5V
AGND
DTI
OPT9
Side_2
R535 100
28
C925
33C
HSC277
PLL IC
VCC cp2
L598
INPUT-
R533
OPT9
R534 100
+B
1
INPUT+
47k
15
35
27
IC900
TC75S51FE(F)
D902
HSC119
14
15
4.7u
4
R534
15
34
+B
50T
V-
V+
3
L599
LD/PS2
R502
C536
OPT9
W_/N
SDO1
+B
26
50T
100p
DTI
R532 1k
R533 100
25
R : 3.27V
T : 62.3mV
Q905
2SA1955A-F
100p
16
33
+B
2
13
18
1 OUTPUT
R : 4.35mV
T : 4.99V
C529
16
OPT8
Side_1
NC
24
D902
50T CONTROL
+B
0
560
0.01u
0.01u
1k
DTI
OPT11
R531 100
23
0
1k
R : 4.974V
T : 4.987V
R520
OPT8
31
32
R430
C524
OPT11
17
PTT
Side_G
NC
SBC
C515
10
oUTPUT
120k
IC501
LMC7101BIM5
DC AMP for
TCXO MOD
4.7k
18
17
30
22
+B
7p
C514
10
L500
1u
18
OPT8
29
oPT3
OPT2
OPT4
NC
AGND
GND
R929
C520
OPT11
OPT7
28
21
ADDR
TCXO MOD
R515
OPT7
NC
CV
C923 47p
4
NP/VREF
VOLTAGE
REGULATOR(33C)
D501
HSC119
19
27
CV
oN/oFF
1
X500
19.2MHz
33C
1u
19
TXO
OPT2
+B
3
R432 0
GND
GND
470k
OPT2
26
20
2
33C
1u
C974
P05
20
14
CN709
23
20
+B
19
C934 47p
DGND
OPT3
25
RSSI
C922 47p
50C
D601
C621 R628
C761
23
IFADCN
OPT2
13
OPT3
23
TXO
13
26P_TD
A
21
+B
RSSI
2
VCC
GND
5
VoUT
VIN
50C
R609
R635
R572
3
C601
21
21
RXEI
RXEO
24
R530 100
oPT10
DGND
23
+B
1
SMBDAT
R : 3.32V
T : 3.35V
IC903
TK71733S
R431 0
GND
GND
100p
21
TXO
AGND
OPT10
TXI
S_DET
A
R529 100
22
NC
18
R : 4.97V
T : 5V
R : 4.97V
T : 5V
VDD
ALERT
VC
22k
15
RXEO
14
AI
10
RXEI
22
5V
AO
23
23
AGND
A
OPT6
OPT5
OPT4
OPT3
OPT2
OPT1
23
22
POW
OPT6
21
17
4
SMBCLK
R503
R926
OPT7
RXEI
RXEO
C703
OPT8
7
TXI
AGND
TCXO_MOD
C920 47P
I2CSDA
1u
C973
OPT9
8
OPT6
24
20
TCXO_MOD
6
TEMP SENSOR
1
C972
DTI
9
25
24
CV
16
NP
R910
10
25
TXI
19
C919 47p
GND
VoUT
5
470p
15
OPT8
OPT11
OPT6
15
18
5RC
GND
12k
C967
15
OPT11
26P_TD
POW
OPT7
OPT7
26P_RD
0
19
R528 1k
RSSI
PGND
15
6
470k
470
11
18
19
17
VAGC
C918 47p
R906
L706
R726 100k
26P_TD
RXD2
R724 100k
R722 100k
R721 100k
R720 100k
R730
6
A2
16
PGND
VAGC
4
I2CCK
/SAVE
1k
2
R925
330k
P06
R526 1k TCXO_MOD
C917 47p
14
5
R927
3
CoNT
180p
R923
P07
A1
P04
A
INT
P03
22
24
GND
15
TV1
VIN
C962
P10
I/O CONTROL
14
5RC
IC902
TK11250CUCB
4
TV1
VOLTAGE
REGULATOR(50C)
C966
22p
VCC
OPT2
12
VAGC
R525 1k
R527 1k
13
13
R524 1k
R : 7.49V
T : 7.26V
C916 47p
150k
IC701
R719 100k
R718 100k
14
13
P13
15
P16
P15
16
P11
P02
R420
0
P12
SDA
TXO
26
C915 47p
ASSIST
BUFFER AMP
R : 1.48V
T : 1.36V
LOCAL SWITCH
C607
47
IC500
LM73CIMKX-0
5RC
TV2
10p
+B
/T_R
33
21
SCL
RXEI
RXEO
AGND
26
TV2
R905
20
23
DSR
RXD0
19
5
I2SDA
4
I2CCK
P01
15
P14
21
P17
5
TXI
CN737
11
TX
10p
LR
+B
ASSIST
OPT6
R717
BER_CLK
/SCSS
TXD
RXD
0.01u
DUAL BUS
BUFFER
POW
OPT6
19
C464
A
CN710
SCK1
/T_R
R : 6.57V
T : 79mV
LED_R
SBC
0.1u
PLD
10
12
TV1
I2CSDA
C914 47p
CONTROL UNIT(X53-4260-XX)-CN404
2
3
1
NC
oN/oFF
6
VIN
VoUT
VIN2
VSS
5
4
10k
R485
D413
1SS388F
1
R482
10k
0.01u
33k
THP
C946 47p
1
VoUT
VSS
4
1u
C448
470k
R492
3.3k
10u
R473
10u
C431
C433
R479
R450
150k
C434
D23
DA221
9
VCO_MOD
SBC
C912 47p
TX-RX UNIT(X57-7370-10) (A/2)-CN900
470k
R481
470k
R451
470k
R449
10k
560k
R448
MA2S111-F
R444
R445
6800p
1k
APC
C943 47p
0
R493
2
VIN
470p
3
R452
470k
C421
SBC
BATT
R432
CN401
470k
R791
D407
C751
VSS
2
3
NC
1u
D701
1SS301F
0
/BINT
/PSW
SB1
PGND
DSW
0.01u
9
0.25A
IFADCN
18
9
9
C451
/APCSW
26P TD
9
9
/PCS_RF
I2CSDA
9
TX
Q600
2SC5636
C603
Q601
2SC5636
R650
ANTENNA SWITCH
Strip line
TV1
8
9
12
Side_2
8
470p
10
C588
Q505
2SC5636
BUFFER AMP
R : 1.81V
T : 1.89V
R : 1.1V
T : 1.27V
R : 2.5mV
T : 2.37V
Q602
2SK3077F
R : 5mV
T : 0.64V
RF AMP
R : 4.75V
T : 4.8V
C634
470p
Q603
R : 14mV RD01MUS1-T113
T : 2.81V
Q606
RD07MVS1BT122
R : 12mV
T : 2.34V
RF DRIVE AMP
RF AMP
R : 0.79V
T : 0.81V
R : 0.5mV
T : 1.615V
RF FINAL AMP
TV2
12
A
9
6
12
C910 47p
10p
R902
R903
820
C944
/5TC
C553
12n
CN600
VAGC
12
A
SDO1
9
3
A2
11
ASSIST
/5TC
3p
L504
47p
D900
B30-2278-05
390
470p
100k
-t
RSSI
PTT2
CN702
CN701
C442
4.7u
R431
470k
NC
470k
R464
10k
R461
C419
1000p
L409
4
VoUT
VIN
5
1u
C742
1
CE
CE
3
C414
470k
1.33V
W_/N
∗R849
21
17
Y1
GND
TV2
R522 1k
C913 47p
+B
4
C469
6
5
SHDN
3
FB
GND
2
1
BooST
SW
VIN
D406
HRB0502A
C418
0.01u
68k
1SS388F
220p
D405
33k
R425
10u
C417
R424
1000p
C470
C413
10u
4
VIN
5
VoUT
VSS
2
C468
0.01u
1u
C432
5V
A
0
IF AMP
Side_1
21
RXD CONTROL
10
D
IC410
MCP6021-E/OT
A
21
D22
19
23
A
21
F701
/OINT
IFADCN
R480
21
18
Y2
R521 1k
I2CCK
TH600
50T
IF_DET
23
IFADCN
IFADCN
Side_G
15
0.1u
10
NC
/PTT
∗R848
15
C701
/T_R
6800p
TX-RX UNIT : OPTION BOARD SECTION (X57-7370-10) (B/2)
21
23
R486
15
OPT1
23
IFADCN
33A
15
13
23
IFADCN
CV
C466
15
7
R520 1k
7
R900
C901
I2CCK
THP
50T
APC
23
RSSI
NC
8
9
A
0.01u
A0
G2
SBC
C908 47p
6
Q900
UMG9N
LED_G
/SAVE
R : 4.94V
T : 4.98V
C525
LG
VCO_MOD
23
21
33A
IFADCN
P00
VCC
A1
R519 1k
15
RXD
BER_DATA
BER_EN
1SS416
D415
RX LED
SWITCH
G1
8
3.24V
Q410
SSM3K15TE(F)
1.33V
18
7
PGND
TXD
D23
TXD CONTROL
/5TC
I2CSDA
/SAVE
R : 100mV
T : 6.38mV
ASSIST
23
IFADCN
21
VAGC
5RC
21
A
A
SBC
5V
9
R517 1k
R518 100
2.98V
27k
2
4
RXD0
BFSX2
TXD0
PGND
6
5
TX/RX LED
TX/RX LED
SWITCH
1
1u
C950
4.7u16
+
C953 R914
21
A
C465
1000p
TCXO_MOD
1u
I2CCK
50C
C543
IFC
C907 47p
C949
21
RTC BATT
CONTROL
A
R516 100
R523 1k
TV1
C454
DC SW
5
IFC
1u
21
1SS416
/SAVE
4
C906 47p
Side_1
Side_2
C948
21
D411
R515 1k
5
LED_R
470p
16
15
RTC BATT
CONTROL
4
4
Side_2
0
C905 47p
1SR154-400
16
15
A
Q409
2SA1955A-F
3
IFC
Side_1
LED_R
470p
16
15
A
Q412
SSM3K15TE(F)
A
D413
470
A
3.32V
LED_R
R514 1k
SIDE 2
3
C947
16
15
ASSIST
2
PTT
Side_G
D901
16
15
TV2
1
/EMG
3
C902
21
16
15
IC416
S-812C31BPI-G
3.32V
Q413
2SA1955A-F
T_/R
R513 1k
LED_G
2
50C
THP
/T R
1
R928
/EMG
470p
16
VOLTAGE
REGULATOR
7.49V
31BU
Q404
SSM3K15TE(F)
10
9
19
DC SW
R511 1k
R512 100
GND
Side_G
LED_G
THP
C904 47p
2
C900
19
I2CSDA
Q412,413
DC SW
CONTROL
470k
3.32V
19
1
MIC SW
R437
19
13
16
R469
R465
A
SBC
100k
1k
R546
3
A
BER_EN
D22
DA221
D17
EMZ6.8N
C36 6800p
C34 100p
C33 100p
C31 100p
1k
R547
GND
Y2
1
2
R477
9
D412
1SS301F
A
IC418
TC7WH125FUF
4
3
DUAL BUS
BUFFER
A
MM
470k
5
A2
Y1
6
8
7
G2
VCC
A1
2
IC417
TC7WH126FK
G1
1
C452
0.01u
oUTY
GND
C30 100p
C29 100p
1u
C446
4
INA
14
SURGE
ABSORPTION
C453
3
2
100
I2CCK
7.46V
SB2 SW CONTROL
16
MM
REVERSE
CURRENT
PREVENTION
D17
IC415
SCTXD
100 13
E
/SAVE
/5TC
A
IC417
2 INPUT
AND
GATE
R33
OPT
IFC
RFAGC
47k
LEVEL
CONVERTER
C38 100p
R34
0.01u
Q706
2SA1832(GR)F
SCSW(MIC)
C415
10u10
+
C416
1u
C412
C467
0.01u
1u
1
4
VoUT
NoISEBYPASS
C443 3
0.01u
5
VCC
INB
1
100k
IC415
TC7SET08FU-F
Q411
SSM6N16FE-F
NC
470p
C13
100k
VIN
GND
CoNTRoL
2
1
R491
1u
IC405
XC6205B152PRN
C16
100p
C17
100P
D19
D18
HZC6.8-E
C14
470p
1.8k
IC411
NJM2880U105ZB
C441
1u
1SS416
1SS416
R502
R500
47k
D16
R483
0
R478
470
R19
0.1u
A
10k
10k
Q411
RTS0
560k
C794
RXD3
0
R829
R838
8.2k
68k
0.1u
11
PF
LED_R
A
Q403
2SA1955A-F
SB2
5A
DETECTOR
1u
C793
68k
5UC
10k
0
47k
R837
PFKEY
R823
68k
1u
R851
C781
D704
RB706F-40
R834
0.1u
C792
R18
47k
R836
0
15p
R832 C790
10k
0.1u
C766
A
D414
7.55V
15
17
SPCS10
IFADCN
1SS416
D15
IN+B
33k
R503
100
0.1u
15
21
D14
D13
A
10
A
R35 12
A
R468
1
2
R822
C788
L8
L3
PTT
/EMG
A
SIDE 1
CN404
LED_G
CN901
1
LED_G
1000p
C903
16
1SS416
GND
4
VSS
R841
560k
5
6
IN-B
IN+A
3
12k
1M
Q705
2SC4738(GR)F
100
TX LED SWITCH
D408
1SS301F
SB2 SW
A
SP-
ME
PTT
10k
10k
1M
17
SPCS10
16
18
1SS416
5
470k
R831
7
8
VDD
oUTB
2
IN-A
oUTA
0.01u
1
0
A
C708
R840
/PTT
A
A : MIC SUM1/
B : VOX
R839
MIC AGC
9
R466
A
SP+
EMC
RESET
A
A
SSW
MSW
SB1
LEVEL CONVERTER
R435
SB2
UNIVERSAL CONNECTOR
1
2
100k
C785
C786
A
R852
1
0.22u
R825
10k
5
IN-B
2 IN-A
3
IN+A
4
VSS
IN+B
6
oUTB
7
8
VDD
oUTA
R820
R813
27k
0.022u
5.6k
C801
MM
R812
100k
R794
47p
VOX
/SCSW
0
R786
C749
C744
0.01u
0.1u
2
1
C736
oUTA
IN-A
0.1u
VOX AMP
8
D414
5V
33M
0.1u
2
0.039u
/UDET
R806
1k
IN+
A
R775
18k
C799
47k
C705
VDD
1
1u
560k
R795
1
R814
47k
7
SB1
Q408
EMD12
DC/DC
CONVERTER
CONTROL
A
1M
R732
15
6
470k
IC414
XC61CC5602NR
1
1
PTT
A
SCTAMI
1M
R731
15
R805
5
3
2
C782
1k
R807
TXO
2
VSS
0.01u
OPT6
IN-
C791
CTS0
A
INH
R797
C746
A
oUT
IN/oUT
5
4
0.1u
A
MIC AMP
C767
GND
6
15k
680k
IC716
TC75W51FK(F)
D703
RB706F-40
VCC
CH1
7
14
AO
5
L7
R32
A
DETECTOR
3
VCC
CH0
VEE
R833
R835
68p
1u
0.1u
5
TONE SW
Q702
SSM3K15TE(F)
INH
47k
oUT/IN
4
CoMMoN
120k
GND
3
IC706
TC75S51FE(F)
IN+
C789
R830
CoNT
2
VDD
3
D706
R828 RB706F-40
0
C787
C762
4
330k
5
0
0.01u
IN-
68k
C772
R440
14
3
+B
A
C759
100k
18k
C735
MIC AA
R816
oUT
1200p
8
47p
VSS
A : MOD SUM/
B : MIC SUM2
R801
0.01u
0.01u
4
MOD/MIC
SUMMING AMP
IC712
TC7S66FUF
10k
0.1u
IC714
TC7W53FK(F)
R787
100k
47k
R783
R767 10k
R782
1
C775
IC715
TC75S51FE(F)
IC710
TC75W51FK(F)
9
5A SW
1M
R729
17
SPCS10
RESET
R27
23
R770
47p
22k
R789
150k
C732
4.7k
R761
C721
C747
0.1u
R755
DETECTOR
0.01u
C737
0.1u
14
2
L6
R30
100
VOX AMP
R780
100k
C722
DI
A
47k
R742
R749
330p
6800p
R733
A
C728
22k
R788
IC709
TC7W53FK(F)
CoMMoN
330k
4.7u
C750
VCC
0.01u
CH0
0.1u
R757
22k
8
R769
A
7
C731
R744
OPT SW
47k
SIDE TONE MUTE
3
220k
VEE
R768
560k
CH1
R754
GND
C720
C704
TONESW
VDD
1
22
VGS REC SEL
C739
22
0.01u
A
C800
1500p
330k
A
A
14
1
4
1k
1SS416
MIC
MOD
A
5
0.1u
330p
oUTB
1.65V REF/
RX SUMMING AMP
33k
A
IN+A
0.01u
4
C779
470k
4
OPT9
18
TONE
CN405
R28
ME
3.82V
100k
Q402
SSM6N16FE-F
5A
L5
EXTSP-
VOX
VIN
D408
R456
R439
7.5V
A
L704
1
1u
L4
1k
VOLTAGE REGULATOR (50U)
A
3
R800
0.1u
100k
C730
22k
VSS
C756
MOD SMF
22
R762
4.7u
R796 C758 CN712
8
R765
R818
R784
R763 22k
MODULATION
LPF
7
C727
1
A
IN-B
47k
1u
IN+B
0.1u
oUTA
C778
2
C718
R777
0.01u
IN-A
3
6
1
CoMMoN
4
A:VREF
/B:RX SUM
2
INH
VCC
IN+A
100k
1k
3
VEE
CH0
C715
0.01u
A
A
21
C411
1k
D707
DA221
C757 CN711
VOUT
A
R29
D12
ME
1
2
A
10k
C724
6.8k
R745
C712
24
23
14
18
A
EXTSP+
22
33A
47k
R728
11
Q4
SSM3K15TE(F)
A
5
2
1M
16
11
R847
REVERSE
CURRENT PREVENTION
33A
3
3.31V
D21
NNCD6.8G-A
100k
VSS
DC SW
100k
Q401
SSM6N16FE-F
IC708
XC6204B502PR
R723
16
100k
A
D12-16
EMC MSW SSW
CONTROL
D20
NNCD6.8G-A
22k
PTT RF OPT
CONTROL
MIC
SHIFT
CONTROL
CE
NC
A
6.05V
R436
4.99V
1SS388F
R549
BATT INT
CN900
SWITCH UNIT
(X41-3710-10)
Q415
EMD12
R454
D417
IC406
XC6204B332M
Q414
EMD12
100k
100k
33A
CONTROL
VOLTAGE REGULATOR (33A)
4
R438
VOLTAGE REGULATOR (5A)
IC406
7.49V
+B
7.49V
10
5A
CN24
+B
A
R725
A
R494
3.82V
VOLTAGE REGULATOR (15M)
MIC
C37 1000p
0.22u
1
IC407
LT1616ES6-PBF
A
CN22
470p
R488
ME
C32 100p
5
14
IC705
TC75W51FK(F)
8
CH1
C745
R750
0.01u
R735
47k
33A-1
18
C795
1k
1.5V
C35 1000p
Vo+
6
2
3.82V
15M
C28 100p
IN-
R843
EMC
L702
15M
C27 1000p
VDD
PGND
3
3.82V
IC405
SP
C26 1000p
IN+
7
4
SP+
C25 1000p
GND
MIC
MUTE
8
SP+
2
47k
A
4.7k
33k
C430
0.1u
R475
BYPASS
Vo-
C15
100k
R453
R434
39k
C436
A
1SS388F
R548
1
VIN
VOUT
3
A
5
SP-
C23 1000p
4
6
5
33M
Q5
2SJ347F
C797
1u
TXO
R764 22k
R815
7
68k
0.1u
BEEP
33MAS
11
3.32V
Q707
2SJ243-A
C796
100k
R467
0.01u
C427
22k
3
SHUTDoWN
MIC
SHIFT
SW
A
23
16
A
470
0.1u
33k
C429
0.1u
R474
5
IN_oUT2
4
GND
R487
0.22u
A
100k
R842
1u
C450
C447
1k
6
CoNT2
oUT_IN1
IN_oUT1
1
3
C435
L2
0
IC412
TPA6201A1DRBR
2
A
R846
33A
C798
10u10
+
100k
R845
R495
22k
0.01u
R490
C439 0.1u
100k
1000p
100k
0
6
0
180p
RXEI
7
18
SP+
R844
R472
22k
C438
1
7
SP-
R40
0.22u
AUDIO
AMP
6_/KEYI1
R26 1k
C24 1000p
IN-
SP+
8
VSS
33M
9
22u
CE
NC
C410
1u
C449
C445
Vo+
5
1000p
R460
7
oUT_IN2
VCC
CoNT1
8
1k
R455
C420
0.01u
1000p
C425
0.1u
1k
100k
R462
R457
4
SURGE
ABSORPTION
6
10
6_KEYO2
4
3.284V
6KEY
C409
33A
+B
5A
R441
15k
100k
1k
R447
R442
330k
180k
R826
R827
-t
R821 100k
1000p
C780 0.22u
TH701
100k
C802
C768
0.1u
470
C765
R808
0.01u
R810
3.3k
0 01u
VDD
IN+
R484
R458
14
1500p
C743 1u
C711
RXEO
14
17
470k
R443
1
C760
oUTA
IN-A
oUTB
8
VDD
2
3
IN+A
IN-B
6
7
4
18
R766
R804
4
VSS
IN-B
VDD
4
GND
470k
oUT
1
VIN1
C740 1000p
20
D
16
2
C803
1000p
VDD
IN-
A
R802
3
5
IN+B
oUTB
8
STSW
7
33A
5A
33A
33k
15k
R778
2
3
1
oUTA
IN-A
oUTB
IN-B
6
8
VSS
56k
6
7
6
C428
100k
VDD
5
C761
10p
IC707
TC7W53FK(F)
C725
/SCSW
LCONT
SP CONTROL
BYPASS
3
22
0.1u
14
6.8k
R785
C714
R746
56k
IN+
2
RF AF SW
5
A
0
MA2S111-F
22k
D18,19
7
A
C748
14
1
R753
24
VIN8
2
VoUT1
23
VoUT8
3
4
VDD
VIN2
VoUT2
VoUT7
VIN7
GND
21
22
1200p
TCXO_MOD
VCO_MOD
R429
0
/EVCS
R759 100
5
6
LD
RESET
20
19
1u
SCSW(RXAF)
IC704
TC75S51FE(F)
C709 R738
AI
R173
R489
GND
19
82k
15
7
0.01u
oUTY
C158
SCK0
SDO0
R756 100
R752 100
8
7
CLK
DI
D0
VDAREF
18
17
C738
RXAF
1000p
A
5
MCDIAF
MCSCKAF
0.1u
22
C777
IC713
TC75W51FK(F)
C763
D/A
CONVERTER
D
3p
15
IN+A
VSS
IN+B
24
IC703
M62364FP-F
7
12
15
0.1u
0.01u
MCDOAF
C437
0.22u
A
Vo-
20
0
RX AF LPF
14
11
L402
L401
L410
D416
IC404
XC6204B332M
R31
RXAF SMF
23
12
BL_SB
R426
/SCSW
R779
/MCCSAF
C424
4
4
TV1
VoUT3
VIN3
VIN6
16
VoUT6
9
R428 0
TV2
VoUT4
10
11
12
VIN5
13
MCSCKCN
14
R185 1M
R183 100k
R180 100k
PLD
D
MCDICN
14
TXO
10k
R3
MCDOCN
20
2
D409
C422 10p
14
R758
A8
/MCCSXCN
PLD
oUT
BL_SB
6_KEYO1
L1
SP-
13
6_KEYO0
R24 1k
6_/KEYI1
9
SP-
8
R497 100k
AF SW
IN-
0
0.01u
D11
/MCCSRCN
/EMG
5
VSS
A 3
A
C717
B9
1k
R172 0
/UDET
0
R187
D10
B10
D
/DINT
C7
A7
1
/DWUP
D7
VIN4
/DRST
D8
470k
N1
R191
IFC
M3
B8
14
5RC
M2
C9
15
R427 0
L4
2
VDD
IC409
TC7W66FK-F
R446 270k
R793
47k
P1
IN+
R23 1k
6_KEYO2
EXTSP-
14
MM
1
0
SQL
NOISE AMP
C726
/SAVE
T_/R
C440 0.1u
D410
MA2S111-F
SP DRIVE
R433
A
22
21
VoUT5
D
A
Q703
SSM3K15TE(F)
R850
0
R748
15
15
0
W/N
NOISE SW
1k
Q405
SSM6N16FE-F
SHUTDoWN
22k
AF AMP
IC408
TC75S51FE( F)
R22 1k
6_KEYO0
IC413
TPA6201A1DRBR
AUDIO
AMP
1
INAMT
EXAMT
20
D
100k
R186
47k
R189 R188
R184
47k
R171
N2
B7
15
12
/APCSW
330k
R21 1.2k
R496 100k
Q407
UMG3N
A
A
20
AMT
/LCDRST
M4
D9
D
2 INPUT
AND GATE
DSW
P2
C8
D
/5TC
P3
17
Q704
2SC4617(S)
R20 1k
6_KEYO1
EXTSP+
GND
R2
/BINT
IC109
TC7SH08FU-F
INA
FSDET
3300p
0.22u
C764
1000p
R799
C753 100p
330k
R824
39k
3
/SYMTIM
R6
1000p
1k
C156
R5
/PSW
1k
C157
R190
1000p
C12
1SS416
/MNDNU
R192
20
VCC
C11
47p
R809
D705
A
RB706F-40
C771
10k
D102
R181 100k
C752 100p
BL_SB
0
NOISE
DETECTOR
A
R751
REVERSE
CURRENT
PREVENTION
17
ENC1
D12
14
INB
R178 100k
2
R177 100k
C804
1000p
C713
82k
5
T9
ENC3
ENC2
19
/PCS_RF
V9
16
R176 100k
BATT
ENC4
R736
L705
R175 100k
D
U9
N3
4
INAMT
T7
R1
APC/ASQ
SMF
33A
R7
V10
APC LPF
33M
R8
C734
A
5
EXAMT
IN+B
C723
0.1u
IC702
TC75W51FK(F)
+B
BATT
5UC
U8
14
19
SBC
B6
A6
5
680p
68p
DSR
C6
C706
100k
VSS
R743
10k
C716
82k
A
SB1
B5
IFADCN
A
33A-1
17
R739
SQL BPF/
BPF/SQL DC AMP
R471
R459
A
R811
A
R463
C142
10u6.3
+
C140
0.1u
ASSIST
6800p
R170
10k
C161
A
THP
VAGC
RFAGC
RSSI
ASQAPC
R168
0
D
33MAS
18
470k
R741
3
C707
A
IC711
TC75W51FK(F)
R771
C456
A
2
10
27p
470p
470p
C455
470p
C462
C457
470p
C155 0.1u
C463
A
SB1
A
33k
ASQAPC
1
470p
33A
15M
33M
C148 0.1u
C146 0.1u
C147 0.1u
C154 0.1u
5
15k
IFVR
9
ASQ DET
6_/KEYI0
AF AMP SW
10k
R747
R : 5.14V
R25 1.2k
Q405
R803
AGND
A 6_/KEYI0
DC/DC CONVERTER
33M
CONTROL
VOLTAGE
REGULATOR (33M)
POWER SUPPLY
CN402
R716
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
8
+B
A
TXD
20
EN2
VOLTAGE
REGULATOR
(AF AMP)
C755 47p
OPT SW
A
19
Q406
2SB1132(Q,R)
Q406,407
R798 100k
E9
E8
D405,406,IC407
CN23
14
1M
11
4
7
6
A
R174
19
R727
16
1k
1k
10k
0.1u
11
33A-1
11
EN1
9
W_/N
7
33MAS
16
R507
R504
OPT10
8
15
7
18
1k
17
15
14
15
7
6
F14
D1
IFADCN
IFADCP
E3
D2
E2
FCDADC
ADC2
ADC3
G1
G2
IFR
DAC0
E1
ADC0
F2
F1
SQDAC
BooT
C2
V3
TEST3
L15
TEST2
TEST1
N16
L17
TEST0
G18
RSTo
1000p
/FRST
C135
IFADCN
5
EN4
Q701
C719 2SA1832(GR)F
68k
D
14
R470
1k
R167
/KEYO3
/KEYO2
/KEYO1
/KEYO0
/KEYI4
/KEYI3
/KEYI2
/KEYI1
/KEYI0
8
TONE
A
BEEP
A
AGCDAC
AGND
S1
CHANNEL SELECTOR
7
APC
14
17
R17
P18
RST
BSCAN1
E16
BSCAN0
H17
RTCK
U13
TRST
U14
TCK
T13
TDo
R11
TMS
R12
TDI
R10
TI
V8
PWM2
PWM1
P4
KEYo4
R4
KEYo3
U12
KEYo2
T12
V13
KEYo1
KEYo0
U11
KEYI4
T11
V12
KEYI3
KEYI2
U10
KEYI1
V11
KEYI0
R9
MICADC1
L2
T10
MoDDAC
SPDAC
MICADC0
K3
K2
ADC9
MICVR
K1
J3
ADC8
ADC7
NC
A
MCI0
MCCK0
4
R819
PLD
CONTROL
R790
1k
ASQDET
R737
MCCS0
EN3
R509
D
G14
3
A 1k
ENC1
ENC2
M14
2
VOL
D702
MA2S111-F
PLD
C710
0.01u
TXD3
1k
R740
MCCK1
C153 0.1u
N14
C152 0.1u
P10
C151 0.1u
P9
C150 1u
N5
R182
470k
MCI1
RXD2
C139 0.1u
C137 1u
L715
C141
TXD2
ENC4
M5
VOL_GND
R510
R508
CN403
1
2.2k
VOL
D
E7
A
33A
R506
L403
ENC3
100p
RXD1
MCo1
C138 0.1u
C136 0.01u
E13
C149 0.01u
K14
P13
P12
P8
P7
B3
A5
C4
T2
C17
U16
D3
E4
V16
F4
G4
H4
T3
K4
L3
M1
U3
E5
F5
G5
H5
J5
K5
L1
E6
A1
A2
B1
B2
A17
A18
B17
B18
U17
U18
V17
V18
U1
U2
V1
V2
A3
C3
C5
B16
D4
D6
J14
DGND4
DGND5
DGND6
DGND7
DGND8
DGND9
DGND10
DGND11
DGND12
DGND13
DGND14
DGND15
AVCC1
AVCC2
NC36
AVCC4
AVCC5
AVCC6
NC35
AVCC8
AVCC9
AVCC10
NC34
AGND2
AGND3
AGND4
AGND5
AGND6
AGND7
AGND8
AGND9
NC1
NC2
NC3
NC4
NC5
NC6
NC7
NC8
NC9
NC10
NC11
NC12
NC13
NC14
NC15
NC16
NC17
NC18
NC19
NC20
NC21
MCCX1
C145 0.1u
H14
C144 1u
L14
C143 0.01u
P11
2.2k
L716
19
VR1
POWER SW/AF VOL
C461
A
R501
L714
19
DTI
0
0
R713
R714
C16
TXD1
SPCS10
RESET
0
R712
0
0
R715
0
R710
0
R711
R709
0
R707
0
0
R705
0
R706
0
R703
NC22
MCCR1
11
RXD
A
19
VOL SW/ENC
6800p
470p
L5
P6
L102
33A
19
C460
D
E10
19
THP
DC SW
DC SW
19
470p
TXI
SCTXD
BCLKX2
BCLKX2
RXD0
INT3
BDX2
BDX2
/SCSS
BCLKR2
BDR2
BFSR2
R702
RESET
C18
MCCK2
CTS0
16
/MNDNU
NC23
RTS0
33A-1
13
F15
MCCS2
RXD0
15
18
NC24
MCo2
TXD0
14
8
R13
HDS2
15
9
NC25
VoINT
I2CCK
I2CSDA
12
T16
VFRM
HRADY
11
13
NC26
RSSIT
CS0
32K
13
T17
CS1
PFKEY
13
NC27
PSRPLL
33MAS
13
N4
PSRIF
CS2
9
/PTT
NC28
T1
NC30
PSRRF
CS3
8
LCONT
NC29
J4
F3
ADC1
D5
IFIR
RXSLT
CS4
18
B3
MICIR
BLE
MIC
8
9
LCONT
A4
470k
RXRVE
7
BER_EN
Q101
Q102
Q103
D1
D101
R106 R108 R112 R114 R117 R401 R403 R405 C108 C114 C115
D10
D5
D6
D9
X53-4260-XX
D2
-10
NO
NO
NO
NO
K
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
-11
1u 470p
330
1.5k 1.5k 1.5k 0.1u
K3 B30-2215-05 B30-2215-05 B30-2215-05 B30-2215-05 B30-2215-05 B30-2215-05 MA2S111-F 2SA1832(GR)F 2SC4617(S) SSM3K15TE(F) 4.7k 470k
0
0
PSTPLL
BHE
R157 4.7k
A
RESET
PSTIF
READ
5RC
/PTT
LCONT
WRITE
MOD
5RC
7
E11
DT15
C131 0.1u
5RC
7
E12
DT14
C133 10u6.3
+
RXAF
BFSX2
7
RSSI
D0
A7
100k
R155 47k
6
0
R704
B6
PSTPA
MCo0
R154
14
TMoD
DT13
R156 4.7k
D1
D5
T14
/OINT
R153
100k
16
11
RESET
C1
100k
R166
C134
18
12
RESET
A5
V14
RXD2
15
9
V15
26P_TD
TRAMP
DT12
J2
100k
33M
0
12
C6
B4
R149
RESET
11
12
LCONT
B5
1
T15
TXRVE
DT11
ADC6
11
MCDOAF
LCONT
C3
VIN
AMT
3.282V
D1
C4
VoUT
3.28V
U15
DT10
J1
4
11
VSS
R15
CTS0
FSDET
H3
12
CD
RTS0
2
SIMDT
SYMTIM
DT9
BATT
0
N1
3
SIMCK
DT8
H2
R140
R16
ASIC
DT7
VOL
100k
RXD0
DT6
VOX
N2
7
T18
SIMRST
R163 100k
R132
R18
TXD0
D
DT5
ADC5
0.01u
IC105
XC6109C29ANN
IC108
ADC4
BCLKR0
GPIo0
DT4
SPCS12
BCLKR0
D14
/HDS2
C122
N3
M3
B12
DT3
H1
BCLKR2
K4
A14
/HRDY
GPIo1
G3
L4
CN105
/CS0
/MCCSRCN
8
9
0.01u
18
B13
GPIo2
DT2
0
R194 100k
C13
/CS2
BFSR2
M4
D13
/CS3
DT1
SPCS11
N4
0.1u
D
A13
/CS4
GPIo3
DT0
T5
R193 100k
MCDOCN
LED_G
15
47k
GPIo4
ADD21
SPCS10
100k
B14
C14
ADD20
SPo1
K5
C159
A16
/RD
LED_R
/RINT
R138
GPIo5
U6
R139
7
8
6
INTRA
A15
/WR
7
CLKC
VSS
E15
D15
GPIo6
ADD19
CV
S_DET
C160 6800p
8
9
INTRB
D15
D14
BDR2
L5
0.1u
C116
R123
R122
100k
100k
R119
100k
R110
/WR
/CS3
C112
0.1u
0.1u
C111
100k
R105
A15
A14
A13
A12
A11
A10
7
1u
22
5
8
OSCOUT
GPIo7
ADD18
W_/N
D6
33M
33M
R159
BCLKX0
R147 100k
M5
BFSR1
BDR1
BCLKX0
N5
M2
DVDD2
CVSS4
M1
L3
L2
MP_MC
L1
BIo
IAQ
HoLD
K3
K2
BCLKX2
SDA
C15
D13
GPIo8
ADD17
R419
L710
A2
B2
33M
SCTAMI
L711
N13
BDX1
BFSX1
M13
DVDD3
L12
DVSS2
CLKMD1
L13
K10
CLKMD2
K11
K12
K13
HPI16
CLKMD3
HD2
HoLDA
K1
XF
J4
J3
J2
MSC
IoSTRB
MSTRB
R_W
H4
J1
IS
H3
H2
DS
READY
PS
H1
G3
G4
HR_W
G1
HCS
CVDD2
G2
F1
CVSS3
DVSS1
HAS
F3
F4
F2
CVDD1
A14
A15
E1
E2
E3
A13
A12
D1
E4
A11
HD7
D2
A10
D3
A1
5
C107
0.1u
/WR
7
WE
A4
A2
A14
DQ4
A7
A8
A13
A6
15M
0.1u
C117
100k
R121
R118 47k
J10
J11
ToUT
R116 47k
J12
J13
H10
TDI
TDo
EMU0
R115 100k
H11
H12
TRST
EMU1 oFF
R111 100k
R113 100k
H13
G13
G12
TMS
CVSS5
CVDD3
G11
G10
HPIENA
F12
F11
F13
DVSS3
CLKoUT
F10
X1
HD3
X2_CLKIN
TCK
100k
R107
1000p
1k
D0
R103
E13
E12
BCLKR0
4
D16
ADD16
SPI1
Side_G
E1
E6
VSS2
VCC2
F3
F1
DQ6
F4
NC3
NC2
F6
G1
oE
DQ2
DQ7
G2
DQ0
B1
A6
A2
A12
A6
A18
H6
SRAM
DQ5
A5
A14
NC1
A8
A13
H5
IC103
A6
A10
A12
H4
A11
A3
A14
7
H3
VSS1
A5
A10
R120
A12
5
D0
BCLKR2
DVSS9
9
D4
7
C109
A21
BCLKR1
C118
VCC1
DQ1
A9
CE2
A11
DQ3
A1
A1
H1
H2
A3
A10
A4
A9
A5
A1
A20
A15
A3
A19
G6
A16
CE
G3
A15
G5
A0
A11
G4
A0
A12
A8
C1
A2
B6
B5
1000p
A8
C3
C2
A6
D
C4
A16
A2
RESET
A17
WP/ACC
B4
B3
A17
/WP
/FRST
C110
A4
A4
B2
A13
B1
A6
A13
A4
A5
A9
A3
A9
A18
WE
DQ4
VSS2
C6
C5
A21
DQ6
D1
A15
A1
E1
A0
E2
DQ0
E3
E4
DQ5
DQ2
E5
A16
E6
F1
CE
F3
F2
DQ8
DQ10
F5
F4
DQ12
NC
DQ7
A14
DQ3
A1
H6
D4
D2
A10
/WR
H5
D5
D3
DQ1
RY/BY
D6
D
H4
D6
A1
FLASH
VSS1
A3
D4
H3
IC101
DQ15
CN103
D3
DQ14
F6
0.01u
H2
A5
A7
D1
H1
A20
A3
C106
G6
A19
DQ13
D1
BFSR0
CVDD7
HCNTL0
7
D
5
VCC
E11
BFSR2
A9
D6
D2
D7
D3
D0
D5
D2
D7
D8
D10
D12
D14
5
DQ11
A2
D15
G5
A7
L717
C105
1u
G4
D3
A8
3
R146 100k
K6
/MCCSAF
A0
D11
D2
A7
/KEYI4
6
D13
E10
BDR0
CVSS6
/RD
/CS2
/RD
/CS0
A16
A11
D13
HCNTL1
A6
6
DQ9
D1
BDR2
A5
L6
9
OSCIN
SCL
B15
D11
D12
GPIo9
T8
R418
7
7
G3
D2
A4
M6
D10
L708
10
VDD
GPIo10
ADD15
V7
S13
470
6_KEYO2
BL_SB
6_/KEYI0
6_/KEYI1
Side_1
Side_2
6_KEYO0
A
S10
6_KEYO1
S7
6
D9
D12
BCLKX0
HD6
CVSS1
S4
A15
D11
A3
5
oE
D3
C13
BCLKX2
DVSS5
9
G1
D4
C12
C11
CVSS7
A2
2
32KOUT
D17
GPIo11
ADD14
SDO1
470p
33M
G2
D5
A16
B13
HINT
A1
1
C120 0.1u
DVDD6
A0
/MCCSXCN
D18
D9
IC106
RV5C386A
RTC
R131 100
N6
F16
D8
32K
R145 100k
M7
E17
DVDD1
ADD13
SPCK1
B2
CVDD4
D6
D7
R130 100
N7
E18
ADD12
V6
A2
/KEYI3
BFSX0
HDS2
L7
D5
14
0.01u
D
C121 0.1u
G16
DVDD2
U7
B3
C3
BFSX2
DSP
DVSS8
D
Q3
SSM3K15TE(F)
6
D4
D5
A3
HDS1
C123
K7
F17
D4
DVDD3
ADD11
SCK1
9
B4
C4
IC102
N8
D3
4
oUTY
F18
DVDD4
ADD10
SPCS02
8
A4
HRDY
CVSS10
GND
G15
D2
DVDD5
ADD9
T4
7
C12
470
A9
D5
CVDD6
3
HD0
H16
D1
2 INPUT
AND GATE
5
VCC
INA
DVDD6
ADD8
STSW
0
A8
DVSS6
INB
G17
D0
ADD7
SPCS01
C104
R144
HD5
1
H15
DVDD7
SPCS00
S9
A7
HD0
J16
CN106
IC104
TC7SH08FU-F
2
HD0
P15
A19
A20
MCDICN
M8
N15
A18
6
D
ADD6
SPo0
S6
/KEYI2
D15
M15
DVDD8
U4
S3
470
C5
R143 100k
D14
A17
J15
K15
A16
D
BDX2
R129 100
A15
DVDD9
ADD5
/WP
6
B5
L8
9.5mV
470k
11
K8
1
R165
1k
DVDD10
ADD4
/EVCS
5
A6
BDX0
VC
P16
A14
D
L709
/DWUP
R137 100k
VCC
2
DVDIo1
ADD3
SPI0
4
R416
A5
R162
GND
TXD
CN707
S8
BDX2
D13
N9
4
oUTPUT
M16
A13
ADD2
V5
A5
HD4
R136 100k
M9
3
RXD
CN708
S5
CN101
A4
0.1u
R17
330
4.7k
R14
S2
R15
1u
C11
D11
MA2S111-F
0.1u
C10
D7
A3
7
IACK
L9
C130
0.01u
1
A12
DVDIo2
SDO0
5
7
/KEYI1
D6
XT
INHN
/SYMTIM
D
2
VDD
XTN
L16
DVDIo3
0
470
B6
C6
R150 1k
K9
/DINT
3
VSS
K16
A11
X102
18.432MHz
DVDIo4
ADD1
TONESW
R415
3
2
8
0
Q2
2SC4617(S) R16
D8
A1
A2
A6
5
6
N10
BUFFER
GND
CN706
1
Q1
2SA1362-F(GR)
150
150
R404
R402
B30-2215-05
D4
D3
A0
0.1u
D7
INT3
M10
Q
P17
A10
IC107
SM5023CNDH-G
4
R141 100k
N17
DVDIo5
SCK0
S12
A
B7
C119 1u
L10
M17
A9
DGND1
ADD0
SCK
/KEYI0
LCD BACKLIGHT SW
A
C103
6
D11,Q1-3
LCD BACKLIGHT
/RD
HBIL
D12
DVDD4
C7
FSDET
N11
K17
DGND3
DGND2
DVDIo6
I2CSDA
470
0
A8
NMI
DVDD1
A
470k
∗R108
SSM3K15TE(F)
A
B8
L713
12
D11
J17
A
USRCKI
RXD3
R414
C8
A7
/HDS2
S11
A9
D8
A8
MCSCKAF
R142 100k
D10
N18
33A-1
CKo
RXD3
∗Q103
D
KEYO3
D404
1SS388F
12KEY
CONTROL
0.1u
KEYO2
R413 470
D403
1SS388F
∗C115
C102
KEYO1
R412 470
D401-404
D402
1SS388F
0
470p
4.7k
∗R106
330
1u
∗C114
2SC4617(S)
∗R117
D15
KEYO0
R411 470
0
∗R114
D401
1SS388F
∗D101
MA2S111-F
R410 470
D14
31BU
BLC
R101
∗R112
∗Q102
0.1u
∗C108
1.5k
1.5k
∗D9 ∗R405
R417 0
12KEY BACKLIGHT SW
2SA1832(GR)F
∗D10
1.5k
∗D5 ∗R403
∗D6
∗R401
12KEY BACKLIGHT
D13
M11
D8
D9
M18
33A-1
DVDIo7
A9
CN102
5A
SB2
B9
R135 100k
SWITCH UNIT (X41-3720-10)
C459
GPIo7
DSPCK
0
R161
33M
∗Q101
D12
5
C9
A7
R128 0
L11
GPIo7
HD2
32I
R14
A
A
D9
INT0
D7
L18
XTALo
R160
D11
A10
INT1
D6
K18
XTALI
I2CCK
D10
B10
INT2
DVDD5
N12
32768Hz
D9
INT3
CVSS9
M12
X101
D8
L707
A
C10
A20
J18
A1
A6
C124
D7
C401
0.1u
0.1u
C113
D6
0.1u
D101,Q101-103
B30-2215-05
∗D2
∗D1
R102
470k
C101
6
A19
H18
A0
6
A5
MAN
DOWN
CN705
1
DVSS4
B12
A11
D10
A11
A4
0.01u
D7
A17
A18
B11
BUS SW
D6
2
DIR
IC401,402
D5
3
CVDD5
B11
A3
RSSI
CN704
4
HD1
A12
D4
A12
A2
PTT1
CN703
VCC
CVSS8
D3
5
DVSS7
A
A13
A10
R127 0
BCLKX1
/CS4
MCDIAF
100k
A1
0.1u
B4
5
6
R133
oE
D1
D2
6
A4
22
32K
5
32K
I2CCK
I2CSDA
A2
7
C402
R158
/RINT
150
A3
B1
8
D0
GPIo7
A
14
CN104
R148
B2
6
7
9
HD2
AUD_IREFC
AD12_IREFF
X2_CLKIN
MCSCKCN
A4
1
ASQDET
6
R126 100
HD2
L101
/HRDY
/DRST
A5
B3
A0
RS
1
100k
B4
DIR
VCC
2
33M
33M
R4 10k
A6
A1
/WR
D4
A
A7
B5
10
G
3
0
R701
A
B6
10k
8
A2
C1
A
20
A8
7
GND
CVSS2
A
19
GND
B7
R408
4
B2
B1
A22
VOLTAGE
DOUBLING
INVERTER
R5 10k
47
R6 10k
R409
5
R7 10k
6
5
A16
A17
B1
GND
R8 10k
VIN
VoUT
4.92V
7
R9 10k
C1+
R12 10k
C2+
C7
NC
R10 10k
18
C1C2-
C404
2.2u16
+
17
8
B8
0.1u
3
4
16
1000p
2
/CS
A0
R11
C40
220p
13
15
C408
C403
2.2u16
+
2
3
4
6
5
7
8
9
10
11
12
14
13
16
15
C2 1u
C1 0.1u
11
14
C406
1u
1
10k
IC401
TC74LCX245FK
12
1000p
-9.74V
/RES
/WR
D1
D0
D3
D2
D4
D6
D5
D7
VSS
VDD
V1
VDD
V3
V2
17
C4 1u
3.28V
C405
2.2u16
+
IC403
LM2682MMX
A
R407
6
A
A
IC402
TC7WZ245FK-F
C2
100p
C3 1u
20
A
-7.13V
C41
19
1
OUTPUT
0
/LCDRST
470k
5 V-
33M
0.1u
5
C5 1u
C6 1u
V+
6
A
A
2
5
R406
3
INPUT+
C407
12k
INPUT-
C8
R2
-t
IC1
LMC7101BIM5
4
R3
TH1
100k
100k
LCD CONTRAST
18
CN1
-7.24V
1M
V4
V5
6
5
L712
GPIo7
SPCK0
6
T6
5
6
SDT
5
6
V4
5
6
U5
5
6
HD2
C10
5
X2_CLKIN
R1
HD2
31BU
HD2
CONTROL UNIT (X53-4260-XX)
The components marked with a dot (●) are parts of layer 1.
Note :
LCD
NX-300
NX-300
INTERCONNECTION DIAGRAM
6KEY/SP/MIC
POWER SW/
AF VOL
AO
/WR
D0
D1
LCD ASSY
D2
CONTROL PCB
D4
X53-426
D6
D7
VDD
VSS
VDD
V1
V2
V3
V4
LED_G
/EMG
LED_R
IFC
/SAVE
I2CCK
/5TC
I2CSDA
SBC
/T_R
TV2
ASSIST
TV1
VAGC
5RC
TCXO_MOD
GND
RSSI
GND
CV
GND
NC
NC
+B
+B
+B
+B
NC
NC
GND
PTT
Side_G
Side_1
W/N
SDO1
Side_2
/PCS_RF
/DSW
APC
/APCSW
VCO_MOD
THP
PLD
RFAGC
SCK1
GND
S_DET
GND
NC
IF_DET
50
V5
ANT
SWITCH UNIT
X41-371
CN901
TX-RX PCB
PTT
PTT
GND
X57-737 A/2
Side_G
Side_1
Side_1
Side_2
Side_2
-
/RES
CN900
BATT
CN1
/CS
D5
1
LED_G
/EMG
LED_R
IFC
/SAVE
I2CCK
/5TC
I2CSDA
SBC
/T_R
TV2
ASSIST
TV1
VAGC
5RC
TCXO_MOD
PGND
RSSI
PGND
CV
AGND
NC
NC
+B
+B
+B
+B
NC
NC
AGND
PTT
Side_G
Side_1
W/N
SDO1
Side_2
/PCS_RF
/DSW
APC
/APCSW
VCO_MOD
THP
PLD
RFAGC
SCK1
GND
S_DET
GND
NC
IF_DET
1
D3
1
CORD ASSY
X42-334
S
2
3
4
5
6
7
8
1
CN404
ME
EMC
SP+
SP+
SP-
SP-
6_/KEYI1
9
6_/KEYO2
11
12
13
10
BL_SB
6_/KEYO0
6_/KEYO1
BL_SB
AGND
+B
SB1
EN2
EN1
EN4
EN3
AGND
VOL
VOL_GND
CN23
6_/KEYI0
10
14
SELECTOR
1
33A
SWITCH UNIT
X41-372
CHANNEL
+
CN403
INTERCONNECTION DIAGRAM
50
OPT1
OPT3
26P_RD
26P_TD
NC
OPT4
OPT10
OPT5
AGND
AGND
AI
AO
AGND
5V
OPT9
DTI
OPT8
OPT11
OPT7
OPT2
TXO
RXEO
RXEI
TXI
OPT6
POW
20
20
1
SSW
1
RXD
TXD
5V
E
OPT
PF
PTT
ME
EMC
MSW
SPSP+
NC
14
26
CN701
AGND
UNIVERSAL CONNECTOR
DGND
oPT2
oPT1
SB2
C3
TXI
RXEI
RXEo
TXo
CN737
CN405
OPT1
OPT3
26P_RD
26P_TD
NC
OPT4
OPT10
OPT5
DGND
AGND
AI
AO
AGND
5V
OPT9
DTI
OPT8
OPT11
OPT7
OPT2
TXO
RXEO
RXEI
TXI
OPT6
POW
1
CN710
AGND
oPT3
oPT4
oPT5
INH
MDWN
TCNT
DI
SToN
5A
X57-737 B/2
OPTION PCB
86
87
NX-300
NX-300
BLOCK DIAGRAM
BLOCK DIAGRAM
X53-4260-XX (Control unit)
33A 15M 33M
IC103
DSP
SRAM
33M
AVR
/PSW
IC406
XC6204B332M
/BINT
15M
DCSW
Q401 SSM6N16FE-F
IC102
RESET
DCSW
SCTAM1
N100C
Q101 2SA1832(G,R)F
Q102 2SC4617(S)
Q103 SSM3K15TE(F)
SB2 5A
DCSW
31BU
D412
1SS301F
SBC
D3,D4
D7,D8
IC708 XC6204B502PR
5A
RESET
IC410
MCP6021-E/OT
33M
DCDC
-10V
IF_DET
AVR
50U
Q704
2SC4617(S)
D705
RB706F-40
IC711
TC75W51FK(F)(1/2)
BPF
AMP
Rect
AMP
5UC
LPF
CN23
APC
AVR
BLC
Q1 2SA1362(GR)-F
Q2 2SC4617(S)
Q3 SSM3K15TE(F)
BL_SB
Q415
EMD12
Q414
EMD12
ASIC
IC108
DAC
/SCSW
AMT
MUTE
RXAF
IC713
TC75W51FK(F)(2/2)
LPF
SUM
LED-G
DAC
IC409
IC408 TC75W66FK-F
TC75S51FE(F)
DAC
IC412
TPA6201A1DRBR
AMP
STSW
EXAMT
CN405
LED-R
Q702
SSM3K15TE
33A
SBC
TV1
TV2
TONE
IC703
M62364FP-F
DAC
(3/8,4/8)
OPT9
AI from VGS
SDO0,SCK0
/EVCS
AMP
VOX
MUTE
SW
IC709
TC7W53FK(F)
IC714
TC7W53FK(F)
D706
RB706F-40
VOX
AMP
IC716
TC75W51FK(F)(2/2)
EMC
MSW
SSW
PTT
PFKEY
OPT
5V
TXD
RXD
NC
MSW
/UDET
/PTT
PFKEY
RXD3
RSSI , THP , VAGC , CV , S-DET
/EMG , /PTT , Side_1 , Side_2,Side_G , IFC ,
5RC , 5TC , /DSW , /APCSW,SBC , /T_R ,
ASSIST , SDO1 , SCK1 , PLD
IC715
TC75S51FE(F)
Rect
OPT6
AO to VGS
TONESW
50U
Q4 SSM3K15TE(F)
Q5 2SJ347F
IC706
TC75S51FE(F)
IC710
TC75W51FK(F)(1/2)
IC712
TC7S66FUF
IC716
TC75W51FK(F)(1/2)
Q707
2SJ243-A
LPF
SUM
MUTE
AMP
MUTE
MUTE
MM
MSW
/SCSW
I2CCK,I2CSDA
TO DSP
AGC
D703,704 RB706F-40
Q705 2SC4738(GR)F
Q706 2SA1832(GR)F
AI from VGS
MIC
/RINT
32K
CN701 (for production)
6key
Back Light
BL_SB
IC413
TPA6201A1DRBR
INAMT
OPT10
IC703
IC703
M62364FP-F(6/8) M62364FP-F(5/8)
KEY
Matrix
(6key)
IC707
TC7W53FK(F)
SBC
DC SW
+B
INAMT
EXAMT
DO
Q701 2SA1832(GR)F
IC704
TC75S51FE(F)
DC SW
AVR
Q405
SSM6N16FE-F
IC703
M62364FP-F(8/8)
BLC
MM
SCSW
/AMT
STSW
EXAMT
INAMT
BEEP
TONESW
/MNDNU
5UC
Selector
knob
6_KEYO2
6_KEYO1
6_KEYO0
6_KEYI0
6_KEYI1
Q406 2SB1132(Q,R)
Q407 UMG3N
+B
Q411
SSM6N16FE-F
D1,2,5,6
D9,10
5A
IC411
NJM2880U105ZB
ASQDET
IC702
IC702
TC75W51FK(F)(1/2) TC75W51FK(F)(2/2)
LPF
ENC1
ENC2
ENC3
ENC4
IC403 LM2682MMX
IC711
TC75W51FK(F)(2/2)
Volume
AVR
N100C
BEEP
SB2
+B
SB1
33A
VOL
BATT
IC105
XC6109C29ANN
BLC
LCD Back Light
CN403
DCSW
SB2
ASQDET
VOX
VOL
BATT
PFKEY
AVR
Q403 2SA1955A-F
Q404 SSM3K15TE(F)
Q409 2SA1955A-F
Q410 SSM3K15TE(F)
ASQAPC
12key Back Light
AVR
Q413 2SA1955A-F
Q412 SSM3K15TE(F)
TXD0
RXD0
RTS0
CTS0
DSR
/PTT
/UDET
RXD3
ENC1
ENC2
ENC3
ENC4
/BINT
/PSW
DAC
IC414
XC61CC5602NR
IC417
TC7WH126FK(2/2)
LCDCNT
Q408
EMD12
IC416
S-812C31BPI-G
D0~15,A0~20,/RD,/WR,/CS0,/CS2,/CS3,/CS4/HDS2,/HRDY
IC703
M62364FP-F(7/8)
SB1
AVR
33A
/LCDRST
LPF
IC703
M62364FP-F(1/8)
IC703
M62364FP-F(2/8)
LPF
SUM
DAC
DAC
VCO_MOD
SCRXD
RXD0
/OINT
IC710
TC75W51FK(F)(2/2)
TXD0
SCTXD
I/O Expander
IC701
IC705
TC75W51FK(F)(1/2)
BER_EN
IC705
TC75W51FK(F)(2/2)
MOD
RTC
BER_CLK
BER_DATA
TCXO_MOD
IC403
RV5C386A
RTS0
33M
D408
1SS301F
Q402 SSM6N16FE-F
CN401
Li Battery
BUS SW
+B
SBC
IC405
XC6205B152PRN
DTI from ANI
CN1 to LCD Module
DCDC
Converter
MCD1AF,/MCSCKAF,/MCCSAF,MCD0AF,
MCD1CN,/MCCXCN,/MCD0CN,/
MCCSRCN,MCSCKCN
IC403
LMC7101BIM5
CN404 50pin Board to Board
AVR
33M
/DRST,DCLK,/SYMTIM,
/RSSITIM,/DINT,
/SWUP,FSDET,/HINT
IC401 TC7MZ245FK
IC402 TC7WZ245FK-F
L401 , D406 , D405
IC407 LT1616ES6-PBF
IC415
TC7SET08FU-F
Flash
ROM
IC404
XC6204B332M
IC418
TC7WT125FUF
IC101
VC
TCXO
BSHIFT
SM5023CNDH-G
IC107
X102
18.432MHz
CN710 26pin Option Board
88
DI
KEYO 0,1,2,3
/KEYI 0,1,2,3,4
OPT1,2,3,4,5,6,7,8,11
26P_RD
26P_TD
OPT10
OPT9
DTI
AO
AI
RXEI
RXEO
TXI
TXO
POW
5A
X101 32.768kHz
KEY Matrix
(12key)
89
NX-300
NX-300
BLOCK DIAGRAM
BLOCK DIAGRAM
X57-7370-10 (TX-RX unit)
CN900
Q504
2SK879(Y)F
PLL
IC504
TC75W51FUF(1/2)
DC SW
SB3
SBC
TX : 450.00~520.00MHz
RX : 391.95~461.95MHz
+B
Q901
SSM6L05FU
VCO MOD
150C
Ripple
Filter
AVR
IC902
TK11250CUCB
150C
D606,607
D709,711
HVC131*4
BUFF
AMP
T/R
SW
PreDrive
AMP
Drive
AMP
PreFinal
AMP
Final
AMP
ANT
SW
CF700 450kHz
50R
BPF
IF
AMP
BPF
IC903 TK71733S
IF_DET
IF AMP
IC701
TK10931VTL-G
Q701
2SC4215-F(Y)
XF700
58.05MHz
IF
AMP
MCF
Filter
IC702
LMC7101BIM5
TV2
Q703
3SK318
ASQ
APC
Protect
IC504
TC75W51FUF(2/2)
1st
MIXER
Q204
3SK318
BPF
IC703
LMC7101BIM5
TV1
TUNE
RF
AMP
TUNE
TUNE
BPF
Notch
L721,722
L726
VAGC
50IF
IFC
Q905 2SA1955A-F
50T
50R
IC404
TC75W51FUF(1/2)
RSSI
IC404
TC75W51FUF(2/2)
Q903 SSM6L05FU
+B
S_DET
D900
S1
Side_1
/EMG , LED_R , LED_G , APC ,
/DSW , /APCSW , CV , ASSIST ,
VCO_MOD , TV1 , TV2 , /T_R ,
PTT , Side_1 , Side_2 , Side_G
Q900
UMG9N
RSSI , THP , VAGC , CV , S_DET , IF_DET
BATT
7.5V
CN901
PTT
IC900 TC75S51FE(F)
+
-
SB3
/EMG
/5TC
90
DC SW
/APCSW
L713,714,715
50IF
DC SW
Q605
SSM3K15TE
Q608
2SK1824-A
50R
5RC
DC SW
IC600
TA75W01FUF
Q607
DTC144EE
2SC5383-T111
Q704
Ripple
Q902 SSM6L05FU
DC SW
/APCSW
+B
150C
x3
33C
DC SW
LPF
ASSIST
CF701
450kHz
LPF
APC
IC503
LMC7101BIM5
IC700
MCP6021-E10T
DC SW
/DSW
Q700 2SC5108(Y)F
50C
Q610
EMD5
Q604
2SC5383-T111
LPF
/SAVE
AVR
Q606
RD07MVS1B
Q503
2SC5383-T111
Q904 SSM5H01TU
IC901 XC9101D09AKR
DCDC
Converter
Q603
RD01MUS1
Q512
2SC5636
Q508,509 2SK508NV(K52)
D506,507 1SV325F
D519 1SV278-F
BUFF
D506,507,508,509
AMP
50C
D514,515,516,517
1SV282-F*4
Q505
2SC5636
CV
PLD
BUFF
AMP
VCO
Q602
2SK3077F
D710
1SV286F
Loop
Filter
SDO1
SCK1
/PCS RF
VC
TCXO
IC501
X500 19.2MHz
LMC7101BIM5
Q601
2SC5636
D706,708
1SV286F*2
TCXO_MOD
D600,601
HSC277*2
5T
IC502
VC
Q600
2SC5636
5T
33C
/T_R
1st Local : 391.95~461.95MHz
Temp.
Sensor
T/R
SW
5T
IC500
LM73CIMKX-0
TX/RX: 450~520MHz
D702,703,704
1SV286F*3
50C
5T
5R
Q507
2SC5383-T111
Ripple
Filter
Q510 SSM6L05FU
Q511 2SJ347F
50C
I2CCK
I2CSDA
DC
SW
PTT
S
Side1
Side_2
Side_G
Side2
LED_R
LED_G
91