Download Kenwood TK-940 Car Satellite Radio System User Manual

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800MHz/900MHz FM TRANSCEIVER
SERVICE MANUAL
O 1994-8 PRINTED IN JAPAN
B51-8281-00( N ) 1219
Microphone
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LEVEL DIAGRAM ...............................
CIRCUIT DESCRIPTION .........................................
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SEMICONDUCTOR DATA ..................................
34
DESCRIPTION .OF COMPON~NTS:;:b.....................39.'
PARTS LIST .........................................
.................. 41
EXPLODED VIEW ............................................55
PACKING ......................:.........................................56
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SCHEM&TIC
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SPECIFICA~:IONS .............................................:...... 83
KT-19 (ACCESSORYCONNECTION CABLE1 .... BACK COVER
KDD-4 (D'rMF DECODER) .................. BACK COVER
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KPG-25D (PROGRAMMING DISK) .... BACK COVER
GENERAL
INTRODUC'TION
ns are recommended for
SCOPE OF THIS MANUAL
This manual i? 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 data. Changes which may
occur after publication are covered by either Service
Bulletins or Manual Revisions. These are issued as required.
one is within t w o feet (0.6
ransmit until all RF connectors are verified
ectors are properly termi-
DO NOT operate this equipment
lasting caps or in an explosive atproperly grounded before
ORDERING REPLACEMENT PARTS
When ordering replacement parts or equipment information, the full part identification number should be
included. This applies t o 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.
erviced by a qualified
technician only.
FCC COMPLIANCE AND TYPE NUMBERS
Type acceptance number
Frequency range
Complrance
ALHTK-940-1
806-870MHz
Part 90
ALHTK-941-1
896-941 MHz
Part 90
PRE-INSTALLATION CONSIDERATIONS
1. UNPACKING
Unpack the radio from its shipping container and
check for accessory items. If any i t e m is missing,
please contact KENWOOD immediately.
2. LICENSING REQUIREMENTS
Federal regulations require a station license for each
radio installation (mobile or base) be obtained by the
equipment owner. The licensee .is responsible for enring transmitter power, frequency, and deviation are
hin the limits permitted by the station license.
ansmitter adjustments may be performed only by
nsed technician holding an FCC first, second or
ss commercial radiotelephone operator's lire is no license required t o install or operate
3. PRE-INSTALLATION CHECKOUT
3-1. Introduction
Each rad~oIS adjusted and tested before shipment.
However, it is recommended that recerver and transmitter operation be checked for proper operatron before ~nstallat~on.
3-2.Testing
The radio should be tested complete with all cabl~ng
and accessories as they wrll be connected In the f ~ n a l
installatron. Transmrtter frequency, d e v ~ a t ~ o nand
,
power p ~ t p u should
t
be checked, as should recelver
~ g n ~ j t i v i t ysquelch
,
operation, and audio o u t p u t ,
' Q ~ ~ e q u i p r n eoperation
nt
should be verif~ed.
v
9401941
E INSTALLATION
e vehicle and determine how and where
cable runs for protection against pinching or
g wiring, and radio installation t o prevent,over-
4-2. Antenna
The favored location for an antenna Is In the center
of a large, flat conduct~vearea, usually at the roof tenand
ter The trunk Ild IS preferred, bond the trunk
vehicle chassis using ground straps t o ensure the Ild 1s
at chassis ground
4-3. Radio
The universal mount bracket allows the radio t o be
mounted in a variety of ways. Be sure the mounting
surface is adequate t o support the radio's weight. Allow sufficient space around the radio for air cooling.
Position the radio close enough t o the vehicle operator
t o permit easy access to the controls when driving.
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4-4. DC Power and wiring
1 T h ~ srad~omay be ~nstalledIn negatlve ground e e c tr~calsystems only Reverse polar~tywill cause the
cable fuse to blow Check the veh~cleground polar~ t ybefore ~nstallat~on
t o prevent wasted time and
effort
2 Connect the posltive power lead d~rectlyt o the veh~clebattery pos~tiveterm~nalConnect~ngthe Positive lead t o any other posltlve voltage source In the
veh~cleIS not recommended
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5-2. Radio location
Select a convenlent location for your control stat~on
rad~owhich is as close as practical t o the antenna cable
entry pornt Secondly, use your system's power supply
(whlch supplles the voltage and current requ~redfor
n t can flow around
your system) Make sure s u f f ~ c ~ e air
the rad~oand power supply t o allow adequate cool~ng
SERVICE
This radio is designed for easy servicing. Refer to
the schematic diagrams, printed circuit board views,
and alignment procedures contained in this manual.
Note
When you modify your radio as described in systern
set-up, take the following precaution.
The rating of pin 7 (SB) of the accessory connector
cable (KCT-19) on the rear of the radio is 13.6V ( I A ) .
Insert a 1A fuse if you use the SB pin for external
equipment.
Accessory connector cable (KCT-19)
Fuse (IA)
If DC power is to be controlled by the vehicle ign~tion
switch, a switching relay should be used to switch the
posltwe power lead The vehcle ignition switch then
controls DC to the relay c o ~ l
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5. INSTALLATION PLANNING - CONTROL STATIONS
5-1. Antenna system
Control station. The antenna system s e e c t ~ o ndepends on many factors and IS beyond the scope of this
manual. Your KENWOOD dealer can help you select
an antenna system that will best serve your particular
needs.
3 Connect the ground lead d ~ r e c t l yt o the battery
negatlve termlnal
4 The cable prov~dedwlth the radlo IS s u f f ~ c ~ e n
t ot
handle the maximum radio current demand If the
cable must be extended, be sure the addit~onalwire
IS s u f f ~ c ~ efor
n t the current t o be carr~edand length
of the added lead
If you do not intend t o use the 3.5-mm jack for the
external speaker, fit the supplied speaker-jack cap
(B09-0235-XX) t o stop dust and sand getting in.
Speaker-jack cap
(B09-0235-XX)
SYSTEM SET-UP
P
Merchandise received
t
Frequency range (MHz)
License and frequency allocated by FCC
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TX
806-825
RX
TX
851 -870
851-870
896-902
Y Choose the type of transceiver
w
,
RF power
15W
Type
TK-940 K
15W
TK-9,41 K
935-941
RX
935-941
See page 16.
Modify the control unit
when used KDD-4.
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See page 13.
A personal computer (IBM PC or compatible), programming interface (KPG-4),
and programming software (KPG-25D) are required for programming.
(The frequency and signaling (option) data are programmed for the transceiver.)
Transceiver programming
(Option)
See page 21.
See page 21.
KES-3
External speaker
Are you using the external speaker?
(Option)
See page 18.
1 (Option)
See page 20.
KCT-18
Ignition sense cable
(Option)
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Delivery
)
OPERATING FEATURES
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1. O p e r a t i o n F e a t u t e s
2. Transceiver Controls and Indicators (Fig. 1)
The TK-9401941 s an 8001900MHz-band EFJ LTRIMcompat~bletrunked ladlo deslgned t o operate In both
trunked and convent~onamodes The programmable
features ale summarlzed
2-1. Font Panel Controls
All the keys on the front panel ale momentary-type
push buttons The funct~onsof these keys are explained below
1-1. General Transceiver Features
Any combination of 32 (MAX) trunked and conventional systems programmable.
Up to 250 (MAX) groups are programmable in each
system.
&digit alphanumeric characters pare programmable
for each group.
Types system scan is selectable.
System lockout for scanning.
Time-out timer (Dispatohflelephone)
CALL indicator
Clear-to-talk
External DTNlF decoder (The optional KDD-4 DTMF
decoder is required.)
Test mode
Horn alert port
Data port
1-2. Trunked System Features
The following features are available with systems
programmed for trunked transceiver operation.
Group Scan
Transmit Inhibit
Telephone Interconnect (The optional microphone
with DTMF pad is required.)
Free System Ringback (This feature is available only
when a telephone interconnect ID code is selected.)
AUTO TEL (This feature is available only when a
telephone interconnect ID code is selected.)
Talk-around (Can be set for each group.)
System Search
1-3. Conventional System Features
The following features are available with systems
programmed for conventional transceiver operation.
Up t o 250 (MAX) channels are programmable in
each system. (Channels are selected using the
POWER key
Transceiver POWER key. W h e n the p o w e r is
switched off, all the parameters, such as the system
and group, are stored in memory. When the power is
switched on again, the system returns t o the previous
conditions.
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SYSTEM LIPIDOWN key
When the SYSTEM UPIDOWN key is pressed, the
system number t o be selected is incremented or
decremented by one. When the key is held down, the
system number changes continuously. After the
system number reaches the highest system number, it
goes back t o the lowest system number. System
numbers not set are skipped.
GROUP UPIDOWN key
This key is operated in the same way as the SYSTEM UPIDOWN key. When the system number is
changed, the GROUP indicator shows the original
group number (the last selected group number in each
system). The group t o be set may differ by system.
tem scan funcof this key can
be disabled by pro
OPERATING FEATURES
Group display
Shows the selected group rlumbei (1-MAX 250)
Zero ~ndicatesgroup 10 Only the programmed groups
are d~splayed The group d~splay1s located above the
GROLIP LIPIDOWN key
AUX key
This key toggles the auxiiiary function on and off. If
this key is pressed once, the auxiliary function is enabled. If the key is pressed again, the auxiliary function
is d~sabled.The confirmation tone is the same as that
of the scan key. The following auxiliary functions are
available and can be progl-amr-iied by the FPU:
1) Horn alert
2)Manual relay
3) System scan delete function
4) Fixed revert system call (invalid if the system is
not set)
5) Switching between alphanumeric display and
systemlgroup indicator (toggle)
(Invalid if the alphanumeric display is not set)
When the alphanumeric display is selected, the
confirmation tone is output for about 50ms.
When the systenilgroup indicator is selected, the
confirmation tone is output twice (output 50ms,
off 50ms, output 50ms).
6) AUTO TEL
7) Option signalling reset
8) Invalid
Scan indicator
The
mark on the display goes on in system
scan mode.
a
Delete ( ) 1 indicator
When a system locked out of the system scan sequence is selected, the ) mark on the display goes
on. The mark flashes if there is a locked system during
fixed system scan. !It does not light continuously or
flash during list type scan.)
BUSY indicator
The BUSY indicator goes on if the PTT button is
pressed when the trunked system is busy or while a
TX inhibit ID is being received.
CALL indicator
The CALL indicator can be prograrnmed so that it
goes on when a specified call is received. This indicator goes off when any front panel key is pressed.
If the KDD-4 is installed and the call flag is Y, this
indicator does not go on unless the DTMF code
matches.
2-2. Front Panel Displays and Indicators
System display
Indicates the selected system number (1-MAX 32).
Only the programmed systems are displayed. The
system display is located above the SYSTEM UP/
DOWN key.
POWER S W
VOL UP
1
LCD
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SCAN
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Alpha-numeric display
Fig. I
SCAN S W
* "-
TEL
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AUX S ' N
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OPERATING FEATURES
. Alphanumeric display
The 8-dig~talphanumerlc (NN)display also shows
system and group numbers. 8-digit alphanumeric
displays can be programmed for each group. If the
alphanumeric display IS not programmed, the system
and group numbers are displayed.
After t h e dealer's q u a l f i e d service technician
programs the transceiver, the alphanumeric display
shows system numbers and group numbers for your
s ~ e c i f i cnetwork.
TA indicator
Appears when the Talk-around systemlgroup is
selected.
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OPT indictor
Dlsplays t h e KDD-4 decode latch of o p t o n a l
slgnallng
AUX (Auxiliary) indicator
Appears w h e n t h e manual relay or horn alert
function IS activated (ON) by presslng the AUX key
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Handset indicator
Appears w h e n a group I S selected t h a t IS
programmed wlth telephone IDS (It flashes durlng
AUTO TEL 1
3. Details of Features
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3-1. System Scan
System scan can be selected wlth the "SCAN" key
y programmlng the scan feature When the "SCAIU'
key IS pressed and the
mark appears, scan mode
IS entered Scann~ngstarts from the system follow~ng
the currently dlsplayed system When scannlng,
"-SCAN-' IS ~ n d ~ c a t eon
d the alphanumerlc dlspay
When a call IS received, scannlng stops, and the syst e m and group are dlsplayed
When the system or group or volume (AUX) key IS
pressed dur~ngscannlng, the scan stops and the revert
system or group can be changed Scannlng resumes
one second after the key IS released If the scan
feature is not programmed, the "SCAN" key on the
front panel is ineffective.
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3-2. System Lockout
The system lockout feature IS used t o lock systems
out of the scan sequence, and can be selected b y programming in the following t w o ways:
Fixed lockout
The system t o be locked out is selected by programming. When a locked system is selected, the Delete
( ) ) Indicator appears on the left of the SYSTEM indicator. The revert system is scanned even if it is locked
out. If there is a locked system, the Delete ( b ) indicator flashes during fixed scanning. (It does not light
continuously or flash during list type scan.)
User selectable lockout
If the AUX (Auxiliary) key is programmed for the
scan lockout feature, the user can lock systems out of
the scan sequence w i t h the AUX key. To lock a
system out of the scan sequence, press the AUX key
w h e n t h e s y s t e m is dlsplayed. The Delete ( b )
indicator is displayed o n the left of the SYSTEM
indicator.
To unlock a system, select the system and press
the AUX key. The Delete ( ) ) indicator disappears t o
indicate that the system has returned t o the scan sequence. The revert system is scanned even if it is
locked out. If there a locked system, the Delete ( b
indicator flashes during fixed scanning. (It does not
light continuously or flash during list type scan.) If all
systems are locked out, the scan stops and only the
revert system is received.
If another function is assigned to the AUX (Auxiliary)
key, the USER SELECTABLE LOCKOUT feature does
not function.
3-3. Drop-Out Delay Time (Scan Resume Time)
If a call IS received during scan, the scan stops The
scan resume time can be programmed as 0 t o 254 seconds In one-second increments The default value IS 3
seconds.
3-4. Dwell Time
The dwell time 1s the time after transmlsslon ends
until the scan resumes In scan mode It can be set t o 0
t o 254 seconds by programmlng The default value 1s
15 seconds.
OPERATING FEATURES
3-5. SystemIGroup Revert
SystemIGroup revert can be programmed for one of
the following:
Last call revert
The system or group changes t o the revert system
or group when a call IS received with the system or
group being scanned.
Last use revert
If a systemlgroup call is received during scanning
and the PTT button 1s pressed for transmission and response within the drop out delay time, the system or
group is assigned as the new revert system or group.
3-6. Scan Message Wait
The time for staying wlth the home repeater that
receives a signal during system scan and monitoring
data messages can be programmed. If there is no signal from the home repeater, the system is scanned for
about 50ms. If there is a signal, three data messages
are monitored. Normally, three data messages a re
monitored for each system, and it can be increased in
multiples of three data messages per line to up to eight
lines.
If the repeater data message indicates that there is
no call, data monitoring is terminated and the home
repeater of the next system is scanned.
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3-7. Call Indicator
The call lndlcator can be programmed for each
group In trunked systems, ~tcan be set t o respond t o
a selectable decode ID or one of t w o flxed IDS, except
block IDS When a call IS recelved wlth a selectable
decode ID, the call Indicator flashes When a call 1s
recelved wlth a flxed ID, the call lndlcator lights continuously.
In a convent~onalsystem, the call indicator can be
programmed t o l ~ g h tfor each QT or DQT code It
keeps flashlng while a call IS belng recelved It IS turned
off by presslng any front panel key
3-8. Time-Out Timer
The tlme-out timer can be programmed In 15 seconds increments from 15 seconds t o ten mlnutes for
patch and Interconnect operat~ons If the transmltfor longer than the proter IS dlsabled and a warnP l T button IS held down.
he P l T button IS released.
ute for dlspatch and three
3-9. Priority ID Codes
The priority of the programmable decode ID codes
for each system is as follows:
1) Fixed ID code 1
2) F~xedID code 2
3 ) Selected ID code
4) Other selectable ID codes (Group scan only)
5) Block decode codes
When a call with a higher priority is received, that
call is received immediately (except when the transceiver is trunked out).
3-10. Group Scan Operation
Group scan can be programmed for each group. In
addition to the ID codes of the selected group, the ID
codes of the other groups that are permitted for group
scan are decoded. (The t w o fixed ID and block decode
codes are always decoded.)
If, during group scanning, a call is recelved with one
of the selectable group ID codes for which group scan
is enabled, the group display indicates the group number that the call came in with. That group then becomes the n e w selected group. Group scan resumes
after the specified drop-out delay time or dwell time
shared by the system scan elapses.
3-1 1. Transmit Inhibit
The transceiver can be programmed wlth a transmit
inhibit block of ID codes. If an ID code within this block
is decoded the preset time before the PTT button is
'pressed, transmission is inhibited. The BUSY indicator
lights and a busy tone sounds until the PTT button is
released to indicate that transmission is not possible
(except clear-to-talk mode).
Transmission with the group for which the encode
ID is not set is inhibited, and the busy tone is output
while the PTT button is held down, regardless of the
clear-to-talk setting.
3-12. TEL ID Codes (TEL MODE)
The ID code in the TEL ID block can be used t o make
a phone call by programming the block. To make a
phone calls, an optional DTMF microphone is required.
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OPERATING FEATURES
3-13. Free System Ringback
Thls feature is avalabe only when a telephone interconnect ID code IS selected. If a busy tone sounds
when the PTT button IS pressed, the transceiver enters
this mode automat~cally.
When the PTT button is released, a beep sounds for
400ms to indicate that the mode has been entered. If
the scan IS on, it is resumed (the
mark goes on.)
When any repeater becomes available, a ringing tone
s o ~ ~ n dand
s this mode ends.
The mode is terminated when the system, group,
scan, P n , or AUX key is changed.
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3-14. System Search
T h ~ sfeature can be programmed t o automat~cally
access other programmed systems when the selected
system cannot be accessed If an Intercept tone
sounds when the PTT button IS pressed after setting
the moae, the transcelver has entered the mode
If the group ID IS a telephone Interconnect ID, the
transcelver then attempts t o access, In succession,
other systems that have a telephone tnterconnect ID in
the revert group locatlon If the group ID IS a dlspatch
ID, the transcelver attempts to access other systems
that have a dlspatch ID programmed In the revert
group locatlon
If there IS no system t o be accessed, an Intercept
tone sbunds, the mode IS termlnated, and the transcelver returns to the flrst system If the access IS successful, the mode IS termlnated, and the searched syst e m becomes the n e w selected system (If durrng
scannlng, the scan stops )
3-15. Transpond
Thts feature can be programmed t o turn on and off
each group. If the ID of the group for which transd IS enabled is received, t w o data messages (transID and turn-off code) are automatically transmitted
3-17. Preferred System Revert
This feature is available by assigning this feature to
the AUX (Aux~liary)key The feature is used to move
the revert system/group to the fixed programmed systemlgroup qu~ckly. When the AUX key I S pressed
during scanning, the scan stops temporarily, and the
revert systemlgroup is displayed. The scan resumes
about one second after the AUX key is released.
3-18. Alphanumeric Display Select
The systemlgroup number display and the alphanumeric display can be switched with the AUX key by
assigning this feature to the key. Figure 2 shows the
characters that can be displayed. These are basic characters, and can be displayed in each segment. Four
digits can be displayed at the same time.
- - - -
I 7 71- I l l I I I I ,
1-1
I I I I-- 1 - !--I 1 - 1
h
A B C D E F G H I
J K L M N O P Q R
S T U V W X Y Z
mmed to turn on or off for
button is pressed for the
nd feature is set, the home
r transmission, and the rerformed. Signaling must
- ;
Fig. 2
OPERATING FEATURES
3-19. AUTO TEL
A telephone interconnect call can be made by simply pressing the AUX (Auxiliary) key by assigning this
feature to the key. This feature accesses the TEL
channel of the available system automatically.
When the AUX key is pressed, a queue tone is
o u t p u t , and the "AUTO TEL' appears on t h e
alphanumeric display along with a flashing handset
indicator ( 3 ) to indicate that this mode has been
entered. If the TEL ID is set for the revert system, the
TEL channel of that system is accessed. If all TEL
channels are busy, an attempt is made to access the
TEL channels of another system in which the TEL ID
code has been programmed. It is repeated for 60
seconds until the.access succeeds. If the access
succeeds, a dial tone returns from the repeater. If the
AUX key is pressed again when the queue tone is
sounding, this mode is canceled.
If the access fails after 60 seconds, a deny tone is
output and this mode is terminated. When the talk
ends, the revert system/group returns. When the scan
mode is effective, the scan resumes. The AUTO TEL
feature can be programmed to turn on or off for each
system.
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3-20. Audible User Feedback Tones
The transceiver outputs various combinations of
three tones (high, mid, and low) t o notify the user of
the transceiver operating state. The main tones are
listed below. The h ~ g htone is 14601iz, the mid tone is
980Hz, the and low tone is 730Hz.
Busy tone
This tone is output when the P~TTbutton 1s pressed
but no repeater is available and transmission is not possible. It is output until transmission is enabled while
the P n button is held down and transmission starts, or
until the PTT button is released. (The mid tone and !ow
tone are output alternately in 150nis intervals.)
Intercept tone
This tone indicates that the'transceiver is out of
range. It indicates that the P n button is pressed, and
transmission has started, but the repeater cannot be
connected and talk~ngIS not possible. It is output until
the PTT button is released, (The mid Tone and low tone
are output alternately in 200nis intervals.)
Delay tone
T h ~ stone is output when the P n button is pressed
and the repeater is accessed three times or more to
indicate connection with the repeater is delayed. This
tone is the same as the Busy tone. (It is not output of
CLEAR TO TALK has been set to YES.)
Proceed tone
This tone is output when the P n button is pressed,
transmiss~onstarts, and the repeater is connected to
indicate that the user can talk if the Clear-to-Talk function has been set. (The high tone is output for 100ms.)
Queue tone
This tone is output until the AUTO TEL function is
set and the TEL channel is accepted successfully. (The
mid tone on for 50ms, off for 50ms, and on for 50ms in
1 second intervals.)
Deny tone
This tone is output if the AUTO TEL function is set,
the queue tone is output, but the TEL channel cannot
be accessed within 60 seconds. It is similar to the ind
and low tone are output
tercept tone. (The m ~ tone
alternately in 150ms intervals.)
3-21. Clear-to-Talk
This feature can be programmed t o turn on or off.
'
Clear-to-talk operation (Set t o ON)
If a dispatch ID is used and the PTT button is
pressed when no repeater can transmit, a busy tone is
not output (it is output when an interconnect ID is
used). If transmission becomes possible while the PTr
button is held down, transmission starts.
tput. If transmisis held
f'n button
OPERATING FEATURES
3-22. Conventional System Operation
Up to 250 (MAX) channels can be programmed for
each system programmed as a conventional system.
Channels can be selected by the group key.
) , (D~gitalQuiet-Talk), or carrier
OT ( ~ u i e t - ~ a l kDQT
squelch can be set for transmit or receive channels. If
signaling is set for transmission, a squelch tail eliminator (reverse burst or turn-off code) is transmitted.
Talk-around
The Talk-around feature can be programmed for
each channel.
:
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Transmit disable (receive-only channels)
Transmission can be programmed to be inhibited for
each channel. This feature is used to set receive-only
channels. When the PTT button is pressed on a receive-only channel, a busy tone sounds, and transmission is not performed.
Busy channel lockout
The busy channel lockout feature can be programmed for each channel. If a channel is locked out
by pressing the PTT button, a busy tone is output, and
if transmission becomes possible, it starts.
Scanning conventional systems
For the convent~onalsystem scan, only the revert
channel of each system IS scanned. If QTor DOT is set
for the channel, the channels, including signaling, are
scanned.
3-23. External Decoder (KDD-4 Option)
The optional DTMF decoder (KDD-4) ca
in the transceiver. Use of the optional dec
programmed for each group (for each chan
ventional system). The monitor key fun
external decoder reset key
The KDD-4 can be set with the decode ID of each
group. If it is supporled, the following features are
available:
Audio mute
If the decode latch Input port is low during reception
and the LTR data or signaling matches (when the
squelch is open if signaling is not set), the audio is output.
During systemlgroup scanning, the "-SCAN-" display changes t o the systemlgroup display (or alphanumeric display). If it is the last call, the revert system/
group returns.
Call indicator, alert tone
If the Decode Latch input port changes from high to
l o w during reception and the LTR data or signaling
matches (when the squelch is open if signaling is not
set), a KDD-4 alert tone is output. CALL lights or
flashes (or nothing occurs) according to the CALL
indicator set for each group.
The CALL indicator1KDD-4 alert tone does not operate unless the Decode Latch input port goes high.
Operation during scan
If signaling matches during scanning, the scan stops
at the system. The display shows "-SCAN-" until the
Decode Latch input port goes low. When the port
goes low, the system/group is displayed.
TK-9401941
r---------
I
I
I
I
I
i
I
I
I
I
I
I
I '
I
I
:I
KDD-4
I
---------
Fig. 3
------,
- -----------
-------,I
OPERATING FEATURES
3-24. Horn Alert
Horn alert can be set to on or off for each group
Elther cont~nuousor non-continuous operation can be
set by the FPU The horn alert port IS enabled or
d~sabledas follows,
Enable
D~sable
.Non-continuous
If Horn alert has been set to YES for a group and
DEC ID/OT/DOT matches, the horn alert port, HOR, is
turned on and off as follows;
HOR
4
The timing when the fixed LTR ID matches is as
follows;
The group for which the optional signaling is set
works by ANDing the decode ID with the optional
signaling.
Continuous
Reset with the AUX key or by setting offhook
IDIQTIDQT match
1
3-25. System Scan Type
Fix system scan
AII the set systems except locied-out ones are
scanned If the DELIADD feature IS asslgned t o the
AUX key, ~tcan be controlled from the front panel
List type scan
A scan list can be set for each system.
The list t o be scanned can be changed by changing
the display system.
If many systems have been set, the scan speed can
be increased by narrowing the systems to be scanned
with scan lists.
3-26. Data Port
The f o l l o w i n g ports are available for external
equipment when the KCT-I9 is used.
Terminal functions (Digital)
HOR Horn alert port. For details of operations see
the Horn alert section.
SO
When a carrier is received, 5V is output. When
the carrier disappears, OV returns.
LOK
Goes low (OV) when communication becomes
possible.
I ) When a repeater is linked by LTR.
2) When transmission is started by pressing
PTT when using LTR in TA mode.
3 ) When transmission is started by pressing
PTT in the conventional mode.
DTC
When it goes low (OV), the last group in the
system is gone to. When it goes high (5V),the
original group returns,
TXD
Serial communicat~onoutput from the internal
MPU t o external equipment.
Serial communication input from external
RXD
equipment t o the internal NIPU.
B
OPERATING FEATURES
C
4. Transceiver Programming
Ir
4-1.lntroduction
The TK-9401941 transceiver IS programmed uslng an
I B M PC or compatlbe machlne, a programming Interface (KPG4), and a programmlng dlsk (KPG-25D) Figure 4 shows the setup for an IBM PC
..
Programming disk (KPG-25D)
Fig. 4
4-2. KPG-4 Description
(Optional PC programming interface cable)
The KPG-4 is reeded t o connect the TK-9401941 t o
the computer. It has a circuit in the D-subconnector
(25-pin) case that converts the RS-232C logic level t o
TTL level. The KPG-4 plug is connected to external
socket of the TK-9401941 and t o the computer by a
conversion cable (option) w i t h a 9-pin female
connector and a 25-pin male connector.
'
4-3. Programming Software Description
KPG-25D is the programmlng software for the TK9401941, supplled on a 3 5" or 5.25" floppy disk Thls
software runs under MS-DOS (vers~on3.3 or later) on
an IBM
/XT, AT, or PS2, or on a compatible mach~ne
Data car, de Input t o or read from the TK-9401941, and
e d ~ t e don t h e screen Programmed data can be
4-4. Data Program M o d e
In thts mode, data IS w r ~ t t e nInto the flash memory
In the transceiver, When the power IS turned on, data
program mode can be entered ~mmedlately.When the
KPG-4 IS connected and commands can be received,
t e data program
"PROGRAM" IS displayed t o ~ n d ~ c athat
mode has been entered
Tunlng can be done uslng an IBM PC and KPG-25D,
In the same way as In panel t u n ~ n gmode You can
carry out panel tunlng by select~ngtest mode on the
KPG-25D menu screen and follow~ngthe ~nstructions
on the screen See the KPG-25D Instruction manual
for detalls
OPERATING FEATURES
4-5. Clone M o d e (Figure 51
Programmed data is transferred f r o m one
transceiver t o another by using a microphone cable.
1 . Connect the master set to the slave set with.
2. Turn the slave set on
3 . Hold down the AUX key, turn the master set on, and
keep the AUX key down for t w o more seconds.
"CLONE" appears on the display t o indicate that
clone mode has been entered.
4. Press the SCAN key on the master set.
The
mark appears and data is sent from the
master set t o the slave set. "PROGRAM" appears
on the slave set to show that it is receiving data.
5. When cloning is complete, the
mark on the
master set disappears and "CLOIVE" changes t o
"END". The slave set is automatically reset and
enters user mode.
a
a
If cloning fails, the master set shows "ERROR".
Repeat steps 4 and 5.
If you wish t o clone several sets, switch each of
them on and reDeat 4 and 5.
5. Description of Each Modes
5-1. Dealer mode
To enter this mode, hold down the GROUP UP key,
turn the transceiver on, and keep the GROUP UP key
d o w n for t w o more seconds The mode can be
inhibited by programming.
SYSTEM key
Used t o select one of programmed frequencies 1 t o
1 6 . If no frequency data has been preset, t h e
frequency listed in Table 1 is written as the default
value.
OPERATING FEATURES
. GROUP
key
Used to select the signal~ngencodeldecode data or
5-2. Panel Tuning Mode
This mode can be inhibited by programming. The
following can be adjusted with the front keys:
Squelch level
QT fine deviation
. DQT fine deviation
LTR ID fine deviation
RF power
DQT balance
Maximum deviation
Frequency (TX)
squelch adjustment.
-GROUP
TONE
1
2
3
4
None (No decode; squelch can be adjusted.)
-100H: sqilare wave (No decode; squelch can be adjusted )
5
6
7
8
* Area : 0.
QT (1 51.4Hz) (Decode; squelch cannot be adjusted.)
----
LTR format' (Decode; squelch cannot be adjusted.)
QT (67,OHz) (Decode; Squelch cannot be adjusted..)
QT (210.7Hz) (Decode; squelch cannot be adjusted.)
DQT (023N) (No decode; squelch cannot be adjusted.)
The mode is entered when the GROUP DOWN key
is held down, the power turned on, and the key kept
down for t w o more seconds. The display changes
from "TUNING"to "800MHz" (TK-940) or "900NIHzU(TK941), and then back to the systemlgroup number
indication.
Select the frequency to be adjusted by pressing the
SYSTENI key when the systemlgroup number is being
displayed, then press the SCAN key. Adjustment
mode is entered and the adjustment level can be
varied between 1 to 256.
DOT (754N) (No decode; squelch cannot be adjusted.)
Goto : 12, Home . 12, ID : 47, Free : 25
Table 2
AUX key
When the AUX key is pressed, talk-around is
enabled (the "TANindicator appears), and transmission
is possible on the receive frequency. When the key is
pressed again, talk-around is disabled.
1
Fj
SCAN key
When this key is pressed, the squelch is turned off.
If a carrier is not present, white noise is heard. The
"BUSY indicator appears.
Transmission
The microphone PTT key is used t o start
transmission. When the frequency and signaling have
been selected wirh the SYSTEM and GROUP keys,
transmission begins and the "TX" indicator appears.
The time-out-timer does not work.
SYSTEM key
Used t o s e l e c t t h e frequency or i t e m s t o be
adjusted
.
GROLIP key
Used to select signaling encodeldecode data or the
adjustment level.
AUX key
Used to determine the adjustment level. Select the
level with the GROUP key and then press the AUX key.
The adjustment level is written into the internal serial
EEPROM.
SCAN key
Used t o s w ~ t c hbetween adjustment frequency
variable mode and adjustment level (item) mode.
Volume key
Used to vary the volume or adjust the AF power
level.
INSTALLATION
1. Installing the Signaling Unit
(KDD-4 D'TMF : Option)
1-1. KDD-4 assembly
1. Solder the 9-pin leads with connector to the KDD-4
board locations designated w i t h t h e unit
specification numbers. (Fig. 1)
Fig. 1
2. Put an insulating tube around the KDD-4 board and
heat it so that the tube encases the board. (Fig. 2)
INSTALLATION
1-2, Installing the KDD-4 in the transceiver
I . Remove the t w o halves of the case transceiver and
the control panel. ( F g . 3 )
Fig. 3
2, Install the KDD-4 on the TX-RX unit (B12). (Fig. 4)
1) Attach the pad to the KDD-4 ( 0 ).
2) Plug the KDD-4 connector into CIV203 of the TXRX unit (BIZ) ( 0 ).
3) Attach the KDD-4 to the TX-RX unit ( 0 ) .
4) Reinstall the panel and the t w o halves of the
cases.
Cornpon.:-
cide
Fig. 4
INSTALLATION
1-3. Setting the KDD-4 code (DTMF)
This product IS b u ~ l using
t
surface mount construction techniques. The solder jumpers used t o configure
this product should be changed using equipment-and
techniques suitable for surface mount device repair.
Abuse due t o the use of inappropriate tools and techniques will VOID the warranty.
3
7
3
-
7
7
I
MONIRESET >
JU2
1
Shorted
JU3
*
0
1
7
, m r . m
3 3 3 3
7
7
u,
3
7
m
3
1
I
Fig. 5
Shorted
Open
Shorted
Open
Shorted
JUJ
E
A
A
C
C
1
ON-HOOK
Open c ~ r c u ~ t
OFF-HOOK
1
"-
MUTE
Sources (+) supply
Open circuit
HCMOS HI (5Vdc)
HCMOS LO (OVdc)
(--I supply
URIMUTE
Sinks to (-1 supply
Open circuit
Sources (+) supply
HCMOS LO (OVdc)
HCMOS HI (5Vdc)
Table 1 Jumper setup charts
2. Accessory Connection Cable
(KCT-19 : Option)
The KCT-I9 is an accessory connection cable for
connecting external equipment. The connector has 15
pins and the necessary signal lines are selected for
use.
2-1. Installing the KCT-19 in the transceiver
1. Remove the upper and l o w e r halves o f the
transceiver case, and lift the DC cord bushing ( 0 )
from the chassis.
2. Remove the pad ( 0 ).
A
Fig. 6
INSTALLATION
3. Insert t h e KCT-19 cable ( 0 )into the chassis ( 0
)
2-1. Terminal function
The wire harness band ( 0 )m u s t be inside the
chassis.
4. Relocate the DC cord bushing in the chassis ( 0 ) .
5.Connect t h e K C T - I 9 t o t h e TX-RX unit (A121 as
shown in Figure 7 i 0 1.
6. Connect the KCT-19 to i ! l e external accessory by
into the square
inserting the crimp terminal ( 0 )
plug ( 0), both of which are supplied w i t h the KC7~19.
No. (A)
No. lB,C,DI
Narne
A- 1
D-2
HK
M C hook input
A-2
D-5
ME
MICGND
A-5
D-6
MIC input
8-2
GND
-
Function
-
Detect output
DC supp=~)
1
A-9
D4
Dl
A-I 2
I
1
PTT inout
Data mod innut
,--~
I
~
HOR
Horn AlertICall output
SQ
SP
Audio outwut
Squelch output
-
A-I3
E-I
LOK
Link c o r n, ~ l e t eo- -~-~
toili
r-.
A-I 4
E-2
RE
Serial control data input
MIC mute input
E-3
TXD
MM
-
A-I 5
(
DTC
I
I
Serial control data outwut
Data PTT input
Refer t o Term~nafunction on page 63, ~fneed description in detail.
The functions of A-14 and A - I 5 are changed, if the connector E are
connected to CN2 or CN3 of the radio.
RXD
DTC
TXD
rnal speaker connector, if use external speaker.
(E09-1571-05)
Crimp terminal
(E23-0613-05)
Fig,
,-+
INSTALLATION
3. Ignition Sense Cable (KCT-18 : Option)
@
1
The KCT-18 is an optional cable for enabling the
ignition function. The ignition function lets you turn the
power to the transceiver on and off with the car ignition
key.
If you use the Horn Alert function (KDD-4 requ~red)
or the Manual Relay function, you can turn the function
off while driving with the ~ g n i t ~ okey.
n
i
I
j
,
I
1
t
1
k
k
B.
3-1. Connecting the KCT-18 t o the transceiver
1. Install the KCT-19 in the transceiver (See the KCT19 section.)
2. Insert the KCT-18 lead terminal ( Q )into pin 3 of the
square plug ( 0 supplied with the KCT-19, theri
insert the square plug into the KCT-I9 connector
( 01.
1p
It
3-2. Modifying the transceiver
Modify the transceiver as follows to turn the power
or the Horn Alert or Manual Relay function on and off
with the ignition key.
1. Remove the lower half of the transceiver case.
2. Set jumper resistors (On)R 5 and R6 of the TX-RX
unit (A/2) as shown in Table 2.
Thr
as
-
ontact
"$/
KCT18
Fig. 8
-
t
KCT-18 cannot be connected
+- Power cannot be turned on
Table 2 R5 and R6 setup chart
-
'Alert or Manu2: Relay function can be turned on and off only if the function has been
- to the AUX
',:i..i
.-
1
i
t
r
i
INSTALLATION
p
I
i
I
4. External Speaker
4-1. KES-3 : Option
The KES-3 IS an external speaker for the 3 5-mmdameter speaker jack
Connection procedure
I. Connect the KES-3 to the 3.5-rnm-diameter speaker
jack on the rear of the transceiver.
1
r
4-2. KES-4 : Option
The KES-4 is an external speaker used w ~ t hthe
accessory connection cable.
Connection procedure
1. Install the KCT-19 in the transceiver. (See the KCT1 9 section.)
2. Insert t h e c r i m p terminal i n t o t h e square p l u g
supplied w i t h the KCT-I 9 .
3. Connect CN5 of the transceiver t o connector C of
t h e KCT-19 i n s t e a d o f t o t h e i n t e r n a l speaker
connector.
INSTALLATION
5 . Fitting the Control Panel Upside Down
The TK-9401941 control panel can be fitted upside
d o w n , so the transceiver can be niounted w i t h ~ t s
internal speaker (in l l i e upper haif of the case) facing
down in your car
1 . Reniove the control panel and the TX-RX unit !B/2)
control section. (Fig. 12)
Fig. 12
2. Fo1.d the flat cable ( 0 differently ( Q1.
) through 180 degrees
( 0), and rriount it on the transceiver ( 0) .
4. Insert the flat cable into control section connector
CN201 ( 0 ) .
3. Turn the control section (
5. Turn the pnel through 180 degrees and mount it on
the transceiver. Refit the t w o halves of the case t o
complete installation (Fig. 14)
G
' '
Fig. 14
CIRCUIT DESCRIPTION
I
1. Overview
2. Circuit Configuration by Frequency
This transceiver is an 800MHz-band (TK-9401,
9OOMHz-band (TK-941) EFJ LTRrM trunked-systemcompatible FM transceiver that can be programmed t o
operate on both LTR and conventional systems.
The receiver I S a double-conversion superhet w i t h a
first intermediate frequency (IF) of 45.0375MHz (TK940), 39.0375MHz (TK-941) and a second IF of 455kHz.
Incoming signals from the antenna are mixed with the
local signal from the PLL t o produce the first IF of
45.0375MHz (TK-940), 39.0375MHz (TK-941).
This is then mixed with the 44.5825MHz (TK-940),
38.5825MHz (TK-941) second local osclllator output t o
produce the 455Hz second IF. This is detected t o give
the demodulated signal.
The transmit signal frequency is generated by the
PLL VCO, and modulated by the signal from the microphone. It is then amplified by TX amplifier and PA
amplifier, and sent t o the antenna.
I
ANT TK-940
TX 806-825MHz
851-870MHz
RX 851-870MHz
CF
455kHz
TK-941
T X 896-902MHz
935-941MHz
RX 935-941MHz
1st M I X
ANT
SW
MCF
'
IF SYSTEM
RF
AMP
A
45.0375MHz : TK-940
39.0375MHz : TK-941
I
PLL
VCO
-TK-940
TK-941
AMP
Fig. 1
AF
AMP
SP
44.5825MHz : TK-940
38.5825MHz : TK-941
805.9625-824.9625MHz.: TK-940
806-825MHz
851-870MHz
-
MIC
AMP
MIC
896-902MHz
935-941MHz
Frequency configuration
3. Receiving System
3-1. RF unit
An incoming RF signal from the antenna terminal
passes through the antenna switch (D19, D20, and
D21 are off) and then the bandpass filter (L9). The
signal is ampliked by RF amplifier 0 2 4 , and passes
through the bandpass filter (L6) again. The resulting
signal goes to the flrst mixer (021), where it is mixed
with the first local oscillator signal output from the
frequency synthesizer t o produce t h e f i r s t IF
45.0375MHz (TK-9401, 39.0375MHz (TK-941).
3-2. IF unit
The flrst IF s~gnalthen passes through a four-pole
m o n o ~ t h l ccrystal flter (XFI The s~gnal1s ampllfled by
flrst IF amplrf~er0 1 6 and goes t o the second IF unlt
The second IF unit cons~stsof an IF system IC ( I C ~ )
and the second mlxer, second local osclllator, second
IF fllter, and FlV detector, tC7 mlxes the slgnal Input t o
~t w ~ t hthe 44 5825MHriiTK-940), 38 5825MHz (TK941) second local osclllator output #f the clystal
osclilator (X2) to produce the second IF c' '55kk
The 455kHz slgnal then goes throug
55khL ceramic filter CFI, is amplifl
5y the Ilm
ampllfler,
demodulated by the quac
re F M de
or (In the
same IC), and output t o tht
elve audlo , l p l ~ f ~ e r
CIRCUIT DESCRIPTION
3-4. Squelch circuit
The detector output is amplified by IC2 (212) and
passes through a high-pass filter consisting of IC204
(2/2), which removes the noise components from the
signal. Q202 converts the noise pulse level by
hysteresis and applies it to the CPU (lC209).
The CPU counts the pulses, integrates them, and
turns t h e squelch o n and o f f according t o t h e
calculated value.
3-3. Audio amplifier unit
The demodulated signal is amplified by IC2 (2/2),
and goes through a low-pass filter consisting of IC5 (11
21, a high-pass filter cons~stingof IC5 (2/2), and a BEF
consisting of IC9 (112) to remove the unwanted audio
signal.
The signal the passes through the de-emphasis
circuit consisting of the AF switch (Q17 on) and IC9 (21
21, and the volume level is adjusted by the IC6 D/A
converter. The resulting signal goes to audio amplifier
IC11, is amplified, and is output to the speaker.
D19-21
+
BPF
RF AMP
1st MIX
MCF
n
z-n+>n
>
AF AMP
1st IF
LPF
H PF
BEF
017
he
2nd LOCAL OSC
IC9 (212)
c
\-i--V-
-)
MIX;DET,IF
-"
DET
1st LOCAL OSC (PLL)
DET
--+
BPF
Deemphasis
)
IC6
020
vOL
--, SW
t
VOL UPIDOWN
Fig. 2
Receiving system
AF PA
--+
SP
(
CIRCUIT DESCRIPTION
4. Transmitter System
4-1. Microphone amplifier
The signal f r o m t h e m i c r o p h o n e g o e s t o t h e
nxcrophone mute switch (Q201 off). It then passes
through the high-pass filter in IC205 (212) and the preemphasis/lDC circuit in IC205 (112). (If the option has
been installed, the signal is mixed w i t h the encode
signal.)
From
~icro~hone-
0201
IC205 (212)
MIC
MUTE
HPF
The signal is applied t o the IC212 summing amplifier
and mixed with QT and DQT from the CPU (IC209). It
then passes through the splatter filter (the fourth lowpass f i l t e r ) consisting of IC21 1 (112, 2/2), w h i c h
removes unwanted harmonics.
The output from the low-pass filter is input t o the D l
A converter (lC6) t o adjust the modulation.
IC205 (112)
+
IDC
IC212
+
SUM
IC211 (212)
IC211 (112)
LPF
LpF
-
--B-
MO"DIAConverte'
IC6
DATA
Fig. 3
Microphone amplification
4-3. APC circuit
The direct current that f l o w s through t h e final
module (lC14) produces a voltage across resistors
R108, R109, and R110. This voltage is applied to pin 6
of lC13 (2/2), and is input as the reference voltage
difference of pin 5 and amplified.
4-2. Final amplifier
The signal from the PLL is amplified by t w o power
modules (ICI 2 and IC14) t o an output level of 15W, and
goes through the harmonic filter and antenna switch
D20, and on t o the antenna terminal.
IC13 (1/2) compares the DC input t o pin 2 w i t h the
reference voltage at p i n 3 applied by IC8 (1121,
amplifies the result, and controls the DC amplifier (Q22
and Q23) to keep the transmit final current constant,
thus keeping the transmit output constant.
POWER
AMP
DRIVE
D20
ANT S W
A A
- -I)). -
LPF
8T
DRIVER
DRIVER
I
I
I
Fig. 4
I
AMP
DET
I
-
025
DC
SW
-
026
DC
SW
Transmit power circuit and APC circuit
E l C 2 0 9
CIRCUIT DESCRIPTION
5 . Frequency Synthesizer Unit
5-1. PLL
The frequency synthesizer consists of a VCXO i X l ) ,
and a VCO circuit, PLL circuit, and peripheral circuits.
The VCXO generates 12.8MHz. The frequency stability IS withiri i 2 . 5 p p m (TK-940), i I.5pprn (TK-941)
within the temperatdre range of -30 to 160°C. l ~ h i s
output enters the PLL C (ICI), and is divided by 1024
t o produce a 12.5kHz reference signal.
The VCO output f r o m the buffer amplifier ( 0 5 2 ) is
doub!ed by 0 5 3 , amplified by buffer amplifier 0 3 , and
rlirl
I
IC209
__ .,__
D&A
PLL
I- XI
sen: t o the PLL IC ilC1). The phase of this signal is
compared w i t h ?he 12.5kHz reference signal in IC1
The output f r o m the phase coniparator goes through
the charge pump (In I C l ) and low-pass filter, and on to
the varactor diodes (D51 and D52) in the VCO unit,
keeping t h e VCO frequency c o n s t a n t . The other
output f r o m Q53 is amplified by the R F amplifier iQ181,
and output to the transmit or receive unit vla the RF
switch (D17).
LPF
-
at
Q52
Us
- VCO
PLLJVCO UNIT
---------
_I-
12.8MHz
-
BUFF
I
Q53
-
X2
018
I
I
RF
AMP
Dl7
r:
1%
-
- -- ----
_1
I
.
MB
VCXO
FC
Fig. 5
PLL unit block diagram
5-2. PLL unlock
When the PLL is unlocked, the lock detect signal
(LD) of the PLL IC ( I C I ) is rectified by D l and Q2, and
converted t o a DC signal This signal cuts o f f the
power t o the RF swltch iD17) and drive module (ICI 2),
stopping unnecessary transmission
Q9
DET
INV
LD
Fig. 6 P,LL unlock circuit
SW
IC6
IC8 (212)
CIRCUIT DESCRIPTION
D/A converter
IC6 is used as a conventonal semi-fixed-resistor
converter It sets the following:
1) Reference oscillator frequency
2) Transmission power
3) Modulation level
4) Audio power
6.Control unit
The control unit colisists of CPU )IC2091 and its
peripheral circuits. It controls the TX and RX units and
transfers data to and from the LCD assembly. The
CPU has the f o o w ~ n gmain functions:
1 ) Switchlrig betweeri transmission and reception
according to the P T slgnal input.
2) Head~ngsystem, group, frequency, and program
data frorn the mernory circuit.
3) Sending frequency data to the PLL.
4) Turning the squelch on and off according to the
pulse signal input from the squelch circuit.
5) Controlling the audio mute circ~iitaccording to
input decode data.
6) Sending encode data
7) Sendlng data to the D/A converter.
6-2. TX encode data
The CPU (IC209) transmits encode data.
6-1. Memory circuit
IC201 is a 2-Kbit EEPROM that stores adjustment
and backup data. IC207 is a 256-Kbit flash memory
that contains the transceiver control program, and
channel and Operating feature d a t a The
and
data can be easily wrltten into the memory froln
external equipment. IC208 and IC210 control the
writing of data into IC207.
Shift register
IC10 is an interface IC for I/O port expansion. It
used to expand the CPU (IC209) output ports.
QT, DQT, LTR
These data items are output from CPU pin 33. The
signal from this pin passes through the CR low-pass
filter and goes to the summing amplifier (IC212) in the
microphone amplifier. It is mixed with the audio signal
and output to the splatter filter. It then goes t o the D/A
converter (IC6) and on to the VCXO and VCO.
6-3.RX decode data
Low-speed data (QT, DQT, LTRI
The receive detection signal is amplified by IC2 (21
21, and passes through a ow-pass filter lC204 (112) t o
remove audio components. This signal is input to pin
27 of the CpU,
The CPU digitizes this signal, performs processing
such as DC restoration, and decodes the signal.
IS
IC207
1c2 (212)
Fig. 7
Control unit block diagram
IC6
CIRCUIT DESCRIPTION
6-4. PLL data output
PLL data is output fronl DATA (pin 61 ), EIUABLE (pin
591, and CLOCK ( p ~ n
60)of the CPU (IC2091. The signas are input t o the PLL IC ( I C l i when the channel is
changed or when transmission is changed to reception
and vice versa.
8c
0 13
6-5. Horn control
The horn switch, consisting of Q13, 014, and Q29,
controls the horn relay. It is supplied by the dealer t o
provide the external horn alert function.
0 2 9 disables horn alert, turning on when its base is
high, to inh~bitthe function. Normally, the output from
lClO is low, and 0 1 3 is off; the baseof 0 1 4 is about OV
and 0 1 4 is off. When horn alert is enabled, the output
from lClO goes high and Q13 turns on. The base
current flows through RE1 t o Q14 to turn Q14 on. Q14
can sink a minimum of 800mA.
014
Q29-
D8
T
-
SW
4)
LT
IC1
Q27
01
DEF
03
SW
SW
PSW
Fig. 9
Horn control circuit
-
SW
a+
r
If the SB terminal of the modular jack to which the
microphone is connected is shorted or an overcurrent
flows, R122 and R123 convert the current to a voltage
and 0 3 0 turns on. Its output drives 0 2 8 and turns Q27
on, and the IC1 output foes high. This turns the
transceiver off. If the terminal is no longer shorted, the
transceiver can be turned on by pressing the power
key. R125andC161 are used to prevent malfunctioning w h e n a device w i t h a large surge current is
connected.
LO
AVR
R16
Fig. 8
-
1
R2
IGN
6-6. Power supply circuit
D8 protects 1C1 against overvoltage. Each time a
pulse comes from the PSW terminal, the IC1 output is
reversed. The reversed output signal passes through
0 1 and Q3 and drives 0 4 . A voltage must be applied to
the IGN terminal.
If 24V is supplied t o the transceiver by mistake, Q2
turns on, and 0 3 and 0 4 are forced o f f , so t h e
transceiver does not turn on.
BO
HOR
Power supply circuit
SB
R122,I R123
vAvA,
=
(To rectangular
receptacle)
030
-
SW
SB
-
CIRCUIT DESCRIPTION
1)
'
7.LCD Assembly
The LCD assembiy consists of CPU, LCD, power
switch circuit, and tone generator.
7-1. CPU
The CPU (IC2) carrres o u t the f o l o w l n g main
operatlons:
It sends onloff data serially t o the control unit from
the AF volume control, LIPIDOWN key, system UP/
DOWN key, group UPIDOWN key, SCAlV key, and
AUX key. It receives serial data from the control unit
and displays it on the LCD.
The LCD can indicate alphanumeric characters (13
segments, 8 d~gits),TX, BUSY, CALL, SCAN, Talkaround, Option, AUX, TEL, and Delete.
7-2. Power switch circuit
Each time the power key IS pressed, a pulse IS sent
t o the TX-RX unlt t o turn the transceiver on or off.
7-3. Tone generator
The beeps and alert t o n e s are generated by
combining square wave signals of about 700Hz,
900Hz, and 1500Hz generated by the CPU These
signals are output from pins 46, 47, and 48 of the CPU
(IC2). The signals are rectified by a CR network and fed
t o the TX-RX unit LCD assembly and the de-emphasis
circuit of IC9 (212).
Fig. 10 Tone generator circuit
SEMICONDUCTOR DATA
Level Adjuster : M62363FP (TX-RX Unit IC6)
Block diagram
VINB
I
VouT8
I
Vour7
I
I
VlN7
GND
I
RESET
Vo~rrf
Da
VING
17
16
I
18
I
I
VIN~
VOUT~
VOUT2
VlN2
V00
LD
VOUT~
Vou15
VIN5
I
I
I
I
7
8
CLK
Dl
I
I
VIN~
I
VOUT~
VOUTA
I
v 1 ~ 4
Audio Power Amplifier : LA4422 (TX-RX Unit IC11)
Terminal connection diagram
Block diagram
DC
BS
IN
OUT
NFb
NFa
I
I
I
8
GND
I)
SEMICONDUCTOR DATA
EEPROM : AT24C02NlOS12.7 (TX-RX Unit IC201)
Terminal connection diagram
Terminal function
I
7
PI^ name
I
Functon
Ser~aldata
b
Ser~alclock
TEST
No connect
GND
Block diagram
(8)Vcc
-
GND SCL
-
SDA
START
STOP
LOGIC
-
SERIAL
CONTROL
D
41
O
+
O
H.V. PUMPfllMlNG
LOGIC
D
LOAD
DEVICE
ADDRESS
COMPARATOR
-4
EN
DATA REGISTER
LOAD
INC
I
A2
O
A1
Riw
DATAWORD
ADDRESS
/COUNTER
Ao
Y DEC
-+
2
n
EZPROM
X
w
SERIAL M U X
+
b
b
DIN
1-
-
C
@
.OUT
DourIACK
LOGIC
SEMICONDUCTOR DATA
Microprocessor : 78312AGF3563BE (TX-RX Unit IC209)
Terminal connection diagram
- 0
z ~ % % % S % s ~ 7 s 3 a % L % R ~ %
P42lAD2
P43lAD3
P44lAD4
P45lAD5
P46lAD6
P47lAD7
Vuo
PO0
PO1
PO2
PO3
Po4
52
53
54
55
56
57
58
59
60
61
62
63 n
32
31
30
29
28
27
26
vss
25 4
X2
24 4
XI
23 M P33lCTRLl
22
P32ICll
2 i V PBIICTRLO
P3OlCIO
-
Terminal function
Pin No.
1
Pin Name
PO6
PO7
I10
I
0
I
Function
O p t ~ o nsignaling transpond PTT.
Pin No.
p
-
7
P I0
PI1
P12
5
P13
6
7
PI4
P I5
8
P16
9
P I7
10
P20INMI
11
P21/1NTEO
12
P22/1NTEl
13
P23/INTE2
14
15
P24nXD
P25/RXD
16
3
4
I
0
I
0
110
I
0
D-A converter enable.
External PTT
External HOOK
Olnt~ons~qnal~nq
- - reset
Not use.
Data output with clone.
PTTIdata output with programming.
Data group control input (MDT).
KEY (Transmit : Active "H").
GND.
For display serial (RX) data input.
HOOKfdata input with programming.
Data inputwith clone.
--
7
I
I
I
24
25
X2
18
19
20
21
22
23
28
29
30
1
Pin Name
Vss
11/0
AN0
AN1
/
1
I
I
AN2 - I
AN3
AVREF
AVss
P34lPWMO
O
P35lPWMI
I
P36/CLROR00
0
P37lCLRlR01
O
P501A8-P57lA15 -
Function
GND.
L o w m e e d data innut.
-
--
I
Not use
800/900MHz band input
-T--
31
32
33
34
35
36
37-44
45
46
0
EA
RESET
-
+5V.
GND.
L o w speed data (Signaling) output.
Not use.
E'EPROM
data output.
Flash memory write protect.
A8-A15
-(Bus).
External access.
Power on reset.
p
p
0 External (TX) data output.
External (RX) data output.
I
P26/SCK
0 M~crophonemute (When receive/iink).
GND.
P27lCTS
-- I
RFSH
0 Not use.
Noise pulse input.
P3O/CIO
I
P31/CTRLO
Not use.
I
Unlock signal input.
1
~38,211
I
P33/CTRLI
I
Option signaling decode latch.
XI
12.000MHz.
17
26'
27
-
~-
-
47
48
49
50-57
/RD
/WRp
/ALE
P40lADO-P471AD7
.
-
-
-
Read (Bus).
W-r-~ t e(Bus).
Address latch.
ADO-AD7 (BUS).
+5V.
0
0
PLL data enable.
60
VDDPO0
PO 1
61
PO2
0
62
63
PO3
-
0
0
PLLIshift registerID-A converter data.
Shift register ~ ~ a b l e .
For display serial (TX) data output.
58
59
PO4
PO5
PLUEEPROMlShift register/^-^ converter clock.
0-
SEMICONDUCTOR DATA
Microprocessor : 75308BGK740BE9 (LCD Assy IC2)
Terminal connection diagram
o m m t - w m * m m - o m m t - w m ~ m ~ w m m m m m m m m m m * * * * * * * * *
P6 1
P62
P63
P70
P7 1
P7 2
P73
RESET
S0
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
61
62
63
64
40
39
38
37
PO2
PO1
PO0
P53
65
66
67
68
69
70
71
72
36
35
34
33
32
31
30
29
P52
P5 1
P50
Vss
P43
P42
P41
P40
73
74
75
76
77
28
27
26
25
24
23
22
21
VLCP
VLC~
VLCO
BIAS
COM3
COM2
COM I
COMO
80
Sl I
- N m * m
- N m ~ m w t - m m z - - - - - - -
w
t
-
~
~
m
O
Terminal function
Pin No.
Pin Name
P32
P33
VDD
XT1
Function
I10
- Open (not use).
1-20
Pin Name
S12-S31
21 -24
25
26-28
COMO-COM3
BIAS
VLCO-VLCZ
0
-
Function
LCD output (S20-SII.
LCD COMO-COM3 output
LCD power supply voltage.
LCD voltage level generator.
29-32
P40-P43
-
Open (not use).
33
34-37
Vss
P50-P53
-
38
PO0
I
GND.
Open (not use).
HOOK (PC) ser~aldata input.
39-41
42
PO1 -PO3
-
Open (not use).
I
Ser~aldata input.
54
55
56
57
58, 59
60
61
62
43
PI1
I
PTT (PC) serial data input.
63
P63
4545
P12, P I 3
-
Open (not use).
64
P70
46
P20
Beep output (HI).
65
P7 1
47
P21
~ e i output
p
(Med).
66
P72
I
System up switch input.
48
P22
0
0
0
-41' 67
P73
System down swl 'h input.
49
50
P23
P30
P3 1
-
Open (not use).
0
PTT (PC) serial data output.
HOOK (PC) serial data output.
I
I
0
Pin No.
51
PI0
-'
I10
0
0
--
0
Beep output (Lo).
52
53
:
'68
69-80
/
I
1
0
-
Serial data output.
+5V.
+5V.
XT2
-
Open (not use).
NC
X I , X2
-
P60
I
-
-
-
P6 1
1 Open (not use).
1 System clock input.
AUX swltch input.
I SCAN swltch ~ n p u i .
1 I
Volume up switch input.
I
I
Volurne down switch input.
I
Group up swltch input.
Group down switch input.
I
P62
RESET
1
System reset ~nput.
LCD output (532-S21).
,
SEMICONDUCTOR DATA
PLL System : SC370651F or MC145190F-K (PLLIVCO I C I )
Terminal connection diagram
REFin
VPD
P;
I_
Din
CLK
OUTPUT A
U
T
P: : :
Rx
TEST1
fin
i
3
TEST2
9
12
Vcc
10
11
fin
Block diagram
REFln
REFout
20
1
-
P
OSC OR
4 STAGE
DIVIDER
(CONFIGURABLE)
1
/
/3
*
DATA OUT
fR
SELECT
LOGIC
5OUTPUT A
N
/
13
DOUBLE BUFFERED
Bit GrabberTMR REGISTER
16 BlTS
t
Bit Grabberm C REGISTER
8 BITS
I
'1
STANDBY
LOGIC
+
POR
Bn Grabberm A REGISTER
2 4 BlTS
6-STAGE
A COUNTER
12-STAGE
N COUNTER
fin 11
64/65
PRESCALER
10
fin
t
I
SUPPLY CONNECTIONS :
PIN12= VCC (VcTO INPUT AMP AND 64/55pnCSCALERl
PIN5 = VPD(VcTO PHASEIFREQUENCY
'9RS A AND 8)
PIN14= VDD(V+TO BALANCE OF Cl'.f'
PIN7 = GND (COMMON GROUND:
.
CONTROL
LOGIC
A
Yy
TEST1
DESCRIPTION OF COMPONENTS
TX-RX UNIT (X57-4590-XX) -10 : TK-940 -11 : TK-941
1
'
1 Ref. No. 1
1
( IC1
Parts No.
BU4013BF
[i~: 1
1 1;; 1
NJM4558E
Audio
amplifier
(Detected
output)
Voitaqe reuualtor
Voltage regulator
p P O 8
NJM4558E
OperationlCendition
1
A
-
Act~vef~lter
~ 6 2 3 6 3 ~ ~
NJM4558E
NJ ~
4
I
1
NJM78L05UA
lC6
I
Use/Function
Power supply circuit loglc control
/
IC13
Level adluster
5
5
El
~
t
~
U4094B CF.
-
-
A u d ~ opower
amplifier
Comparator, DC amplifier
EEPROM
Voltage regulator
NJM2904M
AT24C02NlOS12.7
NJM78L05UA
'
l=L~
IF system
-
-
-
-
T , a 7 a c i t y 2-Khit.
-
-
-
-
IC208
TC7S32F
"L"when IC207 access.
DC swltch
I, FAA::~
--(DC
1
"L" when writlng program or data from
external equipment.
-
fl'ter
1
I*'
DTA114EU
switch
- On when power swltch on
DC swltch
f.-wm=d,
then
Q3 turn off
I
DTCll4EU
a3
DC switch
On when power swltch on.
Q4
2SA1641 (S,T)
DC switch
Q5
Q6, 7
DTA114YU
2SB1188iQ, R)
DC switch
DC switch-
On when power swltch on.
Oh when power switch off, then D22 turn on.
RX . OV, TX : 8V
08
2SA1362iY)
DC switch
09
Q10
0 11
Q12
Q13
Q14
Q15
Q16
0 17
Q18
019
Q20
RX : 8V, TX : OV
DC switch
DC
switch
DTC114EU
DTC114EU
DTC114EU
2SD162415)
2SC4116(GR)
2SC4215(Yi
DTA114TU
2SC4226(R24)
DTC144EU
--DTC3 14TK
On when PLL lock.
On when PTT switch on.
On when
On when
On when
On when
DC switch
-
DC s w ~ t c h
DC switch
Ripple filter
RX Ist IF amplifier
Muting switch
-
horn control on.
horn control on.
45.0375MHz (TK-9401, 39.0375MHz (TK-941)
On when n o beep sound at busy.
-
1
RX.
TX.
RF amplifier
On when no beep sound at busy.
Off when busy.
DC switch
Muting switch
3SK241 (R)
APC controller.
On when PTT switch on.
Q26
Q27
028
Q29
DTA114YU
Q30
2SA1586(Y,GR)
DTC114G
I
1
DC switch
On when IGN line "H".
I On when modular lack SB terminal shorted.
-
DESCRIPTION OF COMPONENTS
UseIFunction
Parts No.
Ref. No.
Q201
DTC114Eup
Q202
DTC144EU
D1
1
02CZ18iX.Y)
D2
(
DSA3Al
Operation/Condition
-
M u t i ~ ll c h-
Off when TX.
DC swlrch
Onloif bv no~se
I Voltage
_ reference
_--1 protection
-
L---
1
A
-
P e v e I s e current preventon
I Surqe absorption
-
m
Dl1
I
1SS301
e
x
n
c
k w h e n 5V or more and OV or less-
e
/
Surae absorution
I
Reverse current oreventi011
Surge absorption
Voltage reference
RF s w l ~ c h
DAN235K
~
On when 5V or more and OV or less.
I
i
On when 5V or more and OV or less.
p
~
p
~
HSM88AS
~
Larae
inuut urotectioli
*
I
p
p
-
TWRX switch
Dl9
MI809
D20
MA4P1250
D21
MI809
D22
MA77
DC swltch
D201, 202
DA204K
Surge absorption
D203
1SS301
DC swltch
---
p
p
p
p
,
TWRX s w ~ t c h
-
TWRX swltch
-
-
-
-
-
On when microphone mute on
PLL/VCO (X58-4170-XX) -10 : TK-940 -11 : TK-941
Ref. No.
UseIFunction
Parts No.
IC1
SC370651 F
Q1
DTC143EK
OperationICondition
PLL system
Or MC145190F-K
Lock detect~onswltch
On when PLL unlocked
-
---
p
p
p
-
Lock detection switch
Buffer amplifier
Q2
2SA1586(Y',GRj
-
Q3
2SC3356
2SK508NViK52)
Oscillator
-
Q 53
D1
D51, 52
D53
On when PLL unlocked
p
p
p
p
p
p
p
p
2SC3356
Buffer ampllfler
2SC3356
1SS301
1T363A
MA360
Doubler
DC switch
Vanable dlode
Modulator
On when PLL unlocked
Frequency control
-
LCD ASSY (B38-0731-05)
Ref. No.
UseIFunction
Parts No.
OperationICondition
p
-
Voltage regulator
IC2
NJM78L05UA
75308BGK740BE9
ED1
638-0722-05
LCD
IC1
-
5V
p
p
p
-
M~croprocessor
--
--
~
PARTS LIST
I/ p
CAPACITORS
i
1 = Type
220 J
45
1
2
3
cerarnlc, electrolyr~c etc
'.
4
2 = Shape
round, square, ect
3 = Temp c o e f f ~ c ~ e n l
Capacitor value
5 6
4 = Voltage ratlng
010 = l p F
100 = 10pF
cc4(riq
5 = Value
6 = Tolerance
101 = 1OOpF
102 = 1OOOpF = 0 00111F
103 = O O I ~ F
.Temperature coefficient
Coloi*
C
Black
Red
ppm/T
0
-80
1st Word
P
S
R
Orange Yellow Green
-330
150
-220
L
Tolerance
D
CodeC
k0.25
F0.5
(%I
0 = 22pF
Blue
U
Violet
-470
-750
T
2nd number
1 st number
Example : CC45TH = -470 ? 6Opprni0C
Less than 1OpF
J
f5
G
+2
K
M
X
+10
i20
+40
-20
P
No code
Z
+80 + I 0 0 More than lo$- 10 - +50
Less than 4 7pF -10
- +75
-20
-0
Voltage rating
Chip capacitors (Refer to the table above except dimension)
(EX)
73
&I QQQ :
!
1 2 3 4
5
6
7
a
a
(Chip) (CH. RH, UJ, SL)
(Chip) (0. F)
Dimension (Chip capacitor)
D~rnens~on
code
L
I
W
I
T
5.6 1 0.5 5.0 ?r 0.5 1 Less than 2.0
Ernotv
3.2 i 0.2 1.6 ? 0.2 Less than 1.25
E
F
2.0 1 0.3 1.25 1 0.2 Less than 1.25
RESISTORS
1
1
1
Chip resistor (Carbon)
(EX)
!Q73EBBm.!
1
2
3
4
5
6
7
(Chip) (B,F)
1
Carbon resistor (Normal type)
(EX)
~
1
~
2
3
B
4
5
B
6
~
~
.
!
1
Dimension (Chio resistor1
Dimens:n
code
'L
I
W
3.2 i0.2
1
1.6 k 0.2
7
Rating wattage
1 = Type ... ceramic, electrolytic, etc.
2 = Shape .. round, square, ect.
3 = D~mension
4 = Temp. coeff~c~ent
5 = Voltage rat~ng
6 = Value
7 = Tolerance
1
1
1
I
T
Wattage
1 0.57
28
Y
PARTS LIST
New P a r t s
Par-ts without Parts No are n o t suDD1if.d.
LLPS ? I I ' I I ~ ; I ~ Srion ~~ier~t,iorit~r?;
C l i i r i ~e Parts NO.~ I son1
B
pas fo~~ti-nis
T~eileotlne Parts No. wet-den ~ii?:tit geliefei't.
Ref.
!
NO.
A d d r e s s New
6
z
P a r t s No.
Description
Desti-
Parts
glr EPa % / R
Pfib 2~ %& 4
-
-
Re-
Tg
%
-
TK-940/941
'1
2
3
4
16
26
1C
4A
5
6
7
8
9
2 k.
10
II
12
13
1
' 3
3E
1E
1E
1C
1i:
1
' 4
15
'I6
W3
W '1
10
2E
IE
1C
1C
W301
W2
W20 1
28
'IC
28
700
7U 1
22
I6
26
2E
2E
-
24
25
26
27
28
2A
16,1C
1C
'IC
16
'I6
'lB,2C
26
26
*
*
*
*
*
*
*
*
*
*
*
r
*
*
*
*
AU'I - I 0 6 5 - 0 3
A01 - 1 0 6 6 - 0 3
A'IU-1344-0'1
A62-0349-03
7
MhTALLll
LAbINET(UPPEH)
METALLIC CABINETiLUWEH)
CHASSIS
PANEL ASSY
609-0235-05
838-0731 -05
842-2455-04
642-3343-04
842-3394-1 4
CAP
LCD ASSY
LABEL ( M 4 x 8 MAX)
LABEL ( S / N Q )
LABEL
642-5526-04
646-0409-40
662-0459-U0
872-0705-04
872-0752-04
LABEL t HY A'TT)
WARRANTY CARD
TNSTHUCTTQN MANUAL
MQDEL NAME PLATE
MQDEL NAME PLATE
E30-2036-05
E3U-2076-15
E30-2089-08
~30-2'172-15
E30-3031-15
GRNUND LEAD WIRE
DC CBRD
CURL CQRD(FQR M I C )
DC CQRD ASSY
ANT CABLE ASSY
E37-0460-05
E 3 7 - 0 4 6 1 -US
E37-0470-05
FLAT CABLE(0iSPLY-CQNT U N I T )
LEAD WIRE WITH CQNNECTQR(SP:2P)
F L A T CABLE(CBNT-TXHX U N I T )
Flu-2125-04
Flu-2126-03
F51-U016-05
F 5 1-00'16-05
SHIELDING PLATE(PLL)
SHIELDING CQVER(PLL)
FUSE ( ' I U A )
: ACSY
FUSE ( I U A ) , . . 2 p c s i D C CQRD)
GU2-0576-14
G02-07'11-04
G10-0764-04
G10-0765-04
G I 'I - 0 7 2 8 - 0 4
F L A T SPRING i A F TC)
F L A T SPRING ( A P C / A V R )
F I B R U U S SHEET(CHASS1S)
FIBRNUY S H E E T i C H A S S I S )
SHEET (MQDULAR J A C K )
G13-'1468-04
G I 3-092'1 -04
G53-0776-04
CUSHIQN tDC CQHD)
CUSHIQN (LCD ASSY)
PACKING tPHQNE J A C K )
H10-2784-02
HID-2785-02
H12-'1469-02
H.1 3 - 0 9 4 2 - 0 4
H25-0029-04
PQLYSTYRENE FQAMED F I X T U R E
PQLYSTYHENE FQAMED F I X T U R E
PACKING F I X T U R E
CAHTNN BNAHD
BAG t 6 U x l l 0 )
H25-0049-03
H25-0103-04
H25-0796-04
H52-0603-04
H52-0610-04
BAG
BAG ( 1 2 5 x 2 5 0 )
B AG
I T E M CARTQN CASE
I T E M CARTNN CASE
: ACSY
Y40
941
'
: ACSY
: ACSY
: ACSY
2Y
702
30
1C
28
26
3 'I
32
33
34
35
2D
3E
2D
1
' 0
2E
36
37
38
39
39
3E
2E
2D
3D
3U
4U
41
42
2E
1C
1D
J19-1376-15
J 19 -1434-04
529-0441 -03
M I C HANGER
YQLDERiSP)
BRACKET
43
2A
~29-4928-02
KEY TQP
A
B
C
28
'LC, 2C
18,lC
N09-2077-05
N33-2606-45
N83-2606-46
SEMS SCREW(F1NAL MQDULE)
QVAL HEAD MACHTN SCREWiCp,';E)
PAN HEAD T A P T I T E SCREW
*
*
*
*
*
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L:Scandinavia
K:USA
P:Canada
Y:PX(Far East, Hawaii)
T:England
E:Europe
Y:AAFES(Europe)
RAustralia
M:Other Areas
940
941
:ACSY
:ACSY
I
indicates safety critical components.
PARTS LIST
x Iqpw P a r t s
Par-ts wltnoidt. P a r t s No. a r e not supplied.
LC:; articles no'?l n s l l t i d n l l ? ~clar~iIr: P a r t s No, ne; Son(. pas fournis
TK-940/941
TX-RX UNlT (X57-4590-XX)
Teile ohnc P a r t s No. werden nicht g e i e f e r t .
R e f . NO.
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NYY-U321 - 0 5
212-2013-05
107-0246-U5
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IC14
IC'l4
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MHW820-3
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F L A T HEAD T A P T T I E SCIIEW(PANNEL)
SCREW SE'T
: ACSY
INSULATING TUBE (ANT CABLE)
SPEAKER ( 16 QHM 1W)
MICRQPHQNB
: ACSY
UNIT ( A / 2 , 6 / 2 )
UNIT ( A / 2 , 6 / 2 )
TX-RX UNIT (X57-4590-XX) -10 : TK-940
CI
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C3
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T:England
E:Europe
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kAustralia
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C-lLn.WK
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4
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71
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C C C C C
C *C C, Cc:C,
(7'
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d
C ' C ' L ' x x
x c : ' C ' c x
G 4 4 4 K
4 4 4 4 4
4 K s J 4 4
J J K ' d 4
d--lddd
I W W W I
WWWWW
W l W W W
W W l W W
W W W h W
C I C > G C . , C I C ) ? I C , C . C % C't'C'C,C,
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-nC:,C:'C.C
~ r m m mc ~
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c c cc c
5xxxdm
PARTS LIST
i< N e v ~P a r t s
P a r t s without Parts No. a r e n o t supplied
I
e s ill'11CI~:~S
11017
I I ~ P !ionnrs
I~
oans le Parts N o . ne so1.11.133s r o ~ , ~ - n ~
I cii~?
ohlie Parts No, wet-aer~1~11c;ht
gel~~rrrt.
1
R e f . No.
(~ddressl~ewl
P a r t s No
TX-RX UNIT (X57-4590-XX)
1
D e s t i - Renation marks
Description
SMALL FIXEL) INDUC'rUR( I U N H )
SMALL F I X b U I NDUC'TUR(6.HNH)
FTLTER(H6UMHZ)
F I L T E R ( Y3HMHZ)
COIL (5.5T)
CBIL
CBIL
COIL
CNIL
CBlL
t 2T)
(2T)
(5.5T)
(2.T)
(2T)
COIL (3.5T)
SMALL F I X E D
SMALL F I X k D
SMALL F I X E D
SMALL F I X E D
Y4U
Y41
940
941
INDiJCTBH(2.2UH)
INDUCTBR(5.6NH)
lNDUCTUR(6.8NH)
INDLlCTBH(4.7NH)
SMALL F I X E D INDUCT&IH(6.HNH)
VCXB ( 1 2 . 8 M H Z )
VCXU ( 1 2 . 8 M H Z )
CRYSTAL HESBNATQh(44.5825MHZ)
CRYSTAL HESUNATOh1138.5825MHZ)
HESBNATUH
MCF ( 4 5 . 0 3 7 5 M H Z )
MCF ( 3 9 . 0 3 7 5 M H Z )
H
H
H
R
R
L OK
IOK
U UHM
0 BHM
I .OK
CHIP
CHIP
CHIP
CHIP
CHIP
R
H
H
R
R
U BHM
1.0K
O UHh
'I 0K
1 UUK
H
1' 2 K
4.7K
I5K
1 UOK
47U
J
J
J
J
CHIP
CHIP
CHlP
CHIP
CHIP
R
H
H
H
K:USA
Y:PX(Far East, Hawaii)
T:England
E:Europe
Y:AAFES(Europe)
kAustralia
M:Other Areas
J
J
1/16W
1/16W
J
1/16W
J
1/16W
J
1/16W
1/16W
J
J
J
J
1/16W
1/'16W
1/16W
1/16W
1/'16W
CHIP'
CHIP
CHIP
CHIP
CHIP
H
H
R
H
1.UK
'I 5OK
47K
1. UK
220K
CHIP
CHIP
CHIP
CHIP
CHIP
H
H
R
R
R
470K
1' UUK
22K
1 UOK
2 2K
J
J
J
J
1 /16W
l/l6W
'I / 'I 6 W
1/'16W
I/ l 6 W
1' 8 K
47
68
47K
1 OK
J
J
J
J
J
1/16W
l/lbW
1/16W
1/16W
'l.'16W
CHIP H
CHIP H
CHIP R
CHIP H
1:Scandinavia
.
CHIP
CHIP
CHlP
CHIP
CHIP
J
J
J
3
1/16W
I /l6W
1 /16W
'l/16W
1/16W
.anada
a indicates safety critical components.
47
PARTS LIST
x New Farls
P a r t s w i t h o ~ Parts
t
No. are riot silpyJl!ed
I-es s r - t l c e s non n~c!ntliCli~!::s flmc Ie Parts No, no sent pas fourr-,ls
Tcile ot~rJeParts
No
TX-RX UNIT (X57-4590-XX)
vvertleri riictlt gc!ll?lert.
I.*
i
~
~
NO.f
P a r t s No.
. A d d r e s s New
D e s t i - Renation marks
Description
Parts
@SF%+$
4
ES
-
$j
%ir & % / R
iiiL & 3& %
k3
R3Y
HA0
R41 , 4 2
HA3
HA4
HK73CB1 J 2 2 4 J
RKr/3CB I J ' l 5 2 J
RK73i;81~472~
HK73GB'l J 4 7 3 J
HK73GBI J 2 2 U J
CHIP
CHIP
CHIP
CHIP
CHlP
R
R
R
R
R
22UK
1.5K
4.7K
47K
22
J
J
J
J
J
I / 1 bW
l/IbW
I/lbW
1/16W
l/lhW
R45
R46
HA7
HA8
RAY
RK73tiB I J 2 7 3 , l
RK7SGB.l J 4 7 3 J
RK73GB13223J
HK73tiB1JS63J
HK73GBlJIUAJ
CHlP
CHIP
CHIP
CHIP
CHIP
R
R
R
R
H
2'IK
4 7K
22K
56K
l UOK
J
J
J
J
J
Ill6W
I /l6W
I/l6W
1/16W
1/16W
R50
RS 1
R52
RS3
HS 4
RK73GB1J472J
HK73GBIJIOAJ
RK73GB.l J 2 2 U J
~92-1252-05
HK73GBlJ824J
CHIC'
CHIP
CHIP
CHIP
CHIP
H
R
R
R
R
4 . 7K
1U U K
22
U KJHM
82UK
.J
l / l6W
J
J
1/16W
1/16W
J
1/'16W
R55 , 5 6
R 58
R5Y
R6U , 6 1
R62
RK73GB1 J ' l U 2 J
HK73GB.l J 8 2 4 J
RK73GB1 J ' l 2 2 J
RK73GB.l J ' l 0 2 J
RK73GB'l J 1 UAJ
CHIP
CHIP
CHIP
CHIP
CHIP
R
R
H
H
R
I . UK
82UK
1.2K
'I . O K
1OUK
J
J
J
J
J
1/16W
I/16W
'1/16W
1/16W
1/16W
H63
R64
H65
H66
R 67
RK73GBlJ822J
HK73GB.l J 1 U4J
RK73GB.l J 1 0 2 J
RK73GB.l J 1 5 2 J
RK73GBIJlU3J
CHIP
CHIP
CHIP
CHIP
CHIP
H
R
R
H
H
8.2K
1U U K
1.UK
1.5K
1U K
J
J
J
J
J
I/l6rJ
1/16W
1/l6W
1/'16W
1/16W
R68
R6Y
H 70
R 71
R7 2
HK73GB.l J A 7 1 J
RK73GB1 J 1 0 4 J
HK73GB.l J 2 2 3 J
RK73GBlJ684J
RK73GB1 J 1 U 3 J
CHIP
CHIP
CHIP
CHIP
CHIP
R
R
R
R
R
470
l UUK
22K
68OK
1UK
J
J
J
J
J
Ill6W
1/I6W
1/16W
1/16W
'1/16W
R73
H74
~'75
R 76
R77
RK73GBlJ'lUI J
RK73GB'l J S 6 1 J
RK73GB.l J 1 0 3 J
RK73GB1 J 6 8 2 J
RK73GBlJ470.l
CHIP
CHIP
CHIP
CHIP
CHIP
H
H
H
R
R
1 UCl
560
'I O K
6.8K
4 '7
J
J
J
J
J
1/16W
1/16W
1/16W
1/16W
1/16W
H78
R7Y
R8 '1
R8'2
H83
RK73GBlJ473J
RK73GBlJ102J
RK73CB1 J ' l U2J
HK73GB.l J 4 7 1 J .
HK73GBlJlU2J
CHIP
CHIP
CHIP
CHIP
CHIP
R
H
H
H
R
47K
1 .OK
'1 . U K
4 70
1.UK
J
J
J
J
J
1/16W
I/16W
1/16W
1/16W
1/'16W
R84
H85
R86
R87
H88
HK73GBlJ1UlJ
RK73GB 1 J 5 6 1 J
RK73GB'l J l U 2 J
HK73FB2A271J
RK73FB2A2R2J
CHIP
CHIP
CHIP
CHIP
CHIP
H
R
H
R
R
L UD
560
1.UK
J
J
J
J
1/16W
1/'16W
1/16W
I/IUW
l/lUW
HK73FB2A.l 6OJ
RK73GB.l J 3 3 1 J
RK73FB2A271 J
RY2-06YY-05
RK73FB2AlU2J
CHIP H
CHIP R
CHIP R
SQL I D
CHIP R
I8
33 O
270
1U
1 .OK
HY2-06Y9-05
HK73EB2B471 J
HK73GBlJlUUJ
RK73FB2A22UJ
RK73FB2A22UJ
SOL ID
CHIP R
CHIP R
CHIP R
CHIP H
'I 0
470
'I 0
22
22
R8 Y
R90
R 9 '1
H92
H94
HR95
Y3
HY6
H97
R98
~
I
1:Scandinavia
K:USA
P:Canada
Y:PX(Far East, Hawaii)
T:England
E:Europe
Y:AAFES(Europe)
X:Australia
M:Other Areas
;
.
270
2.2
J
J
J
J
J
1)
1/10W
1/16W
'l/lUW
1 /2W
1/?0W
1/'LW
J
J
J
J
1/8W
Y4U
l/lbW
'l/lUW
1/1UW
940
940
indicates safety critical components.
LCD ASSY (638-0731-05)
Component side view
LCD ASSY (B38-0731-05)
Foil side view
PLLIVCO (X58-4170-XX) (A/2) -10 : TK-940
Component side view
-11 : TK-941
@REF GND
PLLIVCO (X58-4170-XX) (A121 Foil side view
VIN
PLLIVCO (X58-4170-XX) (B12) Foil side view
Component side
Pattern 1
Pattern 2
Foil side
IRef. No. I Address ( Ref. No. ] ~ d d r e s s l
1 ,
component side-+
Pattern 1
Pattern 2
Pattern 3
Pattern 4
Foil side
i
ITX-RX UNIT (X57-4590-XX) (B/2) Component side view
-10 : TK-940 -11 : TK-941
--
--_
Ref. Nc
IC201
IC202
IC203
IC205
IC20E
Component side
O Connect 1 and 4
Pattern 1
Pattern 2
Pattern 3
Pattern 4
Foil side
--
I
I
DTCI 14EU
DTCI 44EU
I
I
I
I
1
I
i
I
!
i
iI
1
I
I
i
1. TX-RX UNIT iX51-4590-XX) 11\12) Foil i i d e view I -10 : TK-940
ii
i
I
I
-11 : TK-941
i
L
,
Component side
I
1
Pattern I
Pattern 2
Pattern 3
-- Pattern 4
I
Sidel
I
I
I
.......
i
.-
.
I 2SB1
-
M
N
PC BOARD VIEW
d
2
4
INPUT
ICalel
VIH
TX-RX UNIT (X57-4590-XX) (AI2) Component side wiew -10 : TK-940 -1 1 : TK-941
,
I
~ o h ~ o n eside
nt
I
I
l2
- --
---
.
13
75
14
I
I
I
I
I
Note)
Ref. No. : Parts of pattern 1.
UNIT (TX-RX SECTION) (X57-4590-XX)
-10: T K - 9 4 0
-11: TK-941
- - -- -- -(A/2)
-- ----- -----
TX-RX
pLL/VCo
01
a2
03.52,53
a51
(X58-417o-XX)
: DTC143EK
: 2SA1586(Y,GR)
: 2SC3356
: 2SK508NV(K52)
Dl
D51,52
D53
: 1T363A
:1SS301
: MA360
**A1 :PLL (X58-4170-XX)(A/2)
-
- - --
-
maow
m o d
f L31Y.
maon
~AIYO
ZL31X.
-
.
-
-
-
---
7 - ,
TX-RX
D1
[V] TK-940
iL) .T<-941
UNIT (X57-4590-XX)
:OZCZ18(X.Y)
:DSA3Al
04.1 1
:1SS301
D7,9,10.12- 1 5 :OA204K
D8
a16
Dl7
:OAN235K
Dl8
:HSM88AS
D19,21
:MI809
02C
:MA4P1250
D22
:MA77
02
:DTA114EU
: O X 1 14EU
:2SA1641 (S,T)
:DTA114YU
:DTA114TU
:2SC4226(R24)
:OTC144EU
: O X 3 14TK
:3SK24 1 (R)
:2SC4094[R?7)
:2SB1370
E F)
.DTA144EU
:DTC 1 14YU
2SA1586(Y,GR)
KCT- 1 8
,-+
-
1
18
1
I
NO
I
0
/
I
I
X2
] XFI
p"1
114 5 8 2 5 ~ ~ z [ 04 53 7 5 ~ L72--0.
~ ~ 1
~77-1564-05138 5 0 2 5 ~ ~ ~ ) ~ 6 ' . 0 3L72-?
75~z)
33(R95,97,100l~081
Xl
I7
YES
22 lL77-1563-05
4-
-
Crirrp
Terminal
a;LIE-
aIz23z=
-------------------
7 ::::I
IC203
:AT24C02N1 OS12.7
:NJM78L05UA
:HO74HC373FP
:AT29C256-20TI
:TC7S32F
:78312AGF3563BE
:TA75S01 F
ccrl ASS'Y (DISPLAY S~ECTION)(838-
--------
IC209
78312ACF3563BE
Note) 0 Ref. No. : Parts of pattern 1.
Eqqzj
10-11
JJP
YES
SC
RESET