Download Maxon SP-340 Service manual
Transcript
SP-300 Series SERVICE MANUAL Maxon America, Inc. 10828 N.W. Airworld Dr. Kansas City, MO 64153 Tel: 816-891-6320 Fax: 816-891-8815 Part Number: 680-100-0155 April 2001 MAXON SP-300 HAND HELD TABLE OF CONTENTS SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 DESCRIPTION OF CONTROLS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 THEORY OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 DIGITAL CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 RF CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 RF CIRCUITS PLL SYNTHESIZER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 RECEIVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 MAINTENANCE AND REPAIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 REMOVING & REPLACING THE BELT CLIP . . . . . . . . . . . . . . . . . . . . . . . 13 REMOVING & REPLACING THE BATTERY . . . . . . . . . . . . . . . . . . . . . . . 14 REMOVING & REPLACING PTT ASSY. . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 REMOVING & REPLACING THE ACCESSORY CONNECTOR . . . . . . . . 15 REMOVING & REPLACING THE ANTENNA & CONTROL KNOBS . . . . 15 REMOVING & REPLACING THE BACK COVER . . . . . . . . . . . . . . . . . . . . 16 REMOVING & REPLACING THE MAIN BOARD . . . . . . . . . . . . . . . . . . . . 17 REMOVING & REPLACING THE DAUGHTER BOARDS . . . . . . . . . . . . . 19 REMOVING & REPLACING THE SPEAKER . . . . . . . . . . . . . . . . . . . . . . . . 19 COMPONENT REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 PROGRAMMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 ALIGNMENT PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 TEST EQUIPMENT SETUP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 ALIGNMENT POINTS DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 VOLTAGE CHARTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 SP-300 SERIES UHF & VHF DIGITAL SECTION PARTS LIST . . . . . . . . . 29 SP-300 SERIES VHF RF SECTION PARTS LIST . . . . . . . . . . . . . . . . . . . . . . 31 SP-300 SERIES UHF RF SECTION PARTS LIST . . . . . . . . . . . . . . . . . . . . . . 34 COMPONENT PINOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 SCHEMATICS & BLOCK DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 VHF FRONT-END . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 VHF POWER AMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 UHF POWER AMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 UHF FRONT-END . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 VHF V.C.O. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 UHF V.C.O. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 TCXO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 ACC-200 BATTERY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 FUSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 P.T.T. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Digital Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 VHF RF Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 UHF RF Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 PCB LAYOUTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Page -iMay 2001 MAXON SP-300 HAND HELD Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Exploded View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Page -iiMay 2001 MAXON SP-300 HAND HELD SPECIFICATIONS GENERAL Equipment Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hand portable Band . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . UHF/ VHF Channel Spacings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.5 kHz, 25 kHz programmable RF Output Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5/ 1 watt Modulation Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F3E Audio Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400 mW (Ext with 8 ohm) 400 mW (Int with 2 ohm) Intermediate Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45.1 MHz & 455 kHz Number of Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16/ 4 Frequency Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Synthesizer Operation Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Intermittent 90 : 5 : 5 (Standby: RX: TX) Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rechargeable Nickel-metal Hydride Battery, 7.5 VDC +/- 10 % TEMPERATURE RANGE Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . From - 40° C to + 80° C Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . From - 30° C to + 60° C CURRENT CONSUMPTION Off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 1 mA Standby (Muted) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 30 mA (Battery Save On) < 60 mA (Battery Save Off) Unmuted, 100 % Max AF Power . . . . . . . . . . . . . . . . . . . . . . . . . < 500 mA Transmit 5 Watt RF Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 2.4 A BATTERY LIFE (5-5-90% Duty Cycle) 1350 mAh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Hrs @ 5 W Page -1May 2001 MAXON SP-300 HAND HELD FREQUENCY BANDS RX TX VHF: V2 148.000 - 174.000 MHz 148.000 - 174.000 MHz UHF: U2 440.000 - 470.000 MHz 440.000 - 470.000 MHz DIMENSIONS Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (141mm)H x (58 mm)W x (37 mm)D WEIGHT Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225 grams With 1350 mAh Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 425 grams TRANSMITTER Carrier Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . High: 5.0W Low: 1.0W AUDIO FREQUENCY DEVIATION Without Subaudio Tone Modulation: 25 kHz Channel Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Max. ±5.0 kHz 12.5 kHz Channel Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Max. ±2.5 kHz With Subaudio Tone Modulation @ 10 % Peak Deviation 25 kHz Channel Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Max. ±5.0 kHz 12.5 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Max. ±2.5 kHz Audio Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Within +1/-3dB of 6dB octave ADJACENT CHANNEL POWER 25 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 70 dBc 12.5 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 60 dBc Conducted Spurious Emission . . . . . . . . . . . . . . . . . . . . . . . . . . . . < -60 dBc Page -2May 2001 MAXON SP-300 HAND HELD Transmitter Audio Distortion (Without CTCSS) . . . . . . . . . . . . < 5% @ 1 kHz Hum & Noise: 12.5 kHz Channel Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 40 dB (with PSOPH) 25 kHz Channel Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 40 dB (with no PSOPH) Load Stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No osc at ³ 10:1 VSWR all phase angles and suitable antenna Peak Deviation @ 1 kHz (Nom. Dev +20dB) 25 kHz Channel Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Max. 5.0 kHz 12.5 kHz Channel Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Max. 2.5 kHz RECEIVER Sensitivity (12dB Sinad) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . UHF: < -117 dBm(.31µV) VHF: < -118 dBm(.28µV) Amplitude Characteristic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < ±3 dB Adjacent Channel Selectivity: 25 kHz Channel Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >60 dB 12.5 kHz Channel Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >50 dB Spurious Response Rejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 dB Intermodulation Response Rejection . . . . . . . . . . . . . . . . . . . . . . 65 dB Temperature Stability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.0005% (-30°C to +60°C) Conducted and Radiated Spurious Emission . . . . . . . . . . . . . . . . Per FCC and IC Rules and Regulations AF Distortion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 5% Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 dB/octave de-emphasized response in the range 300 Hz - 3000 Hz RX Hum & Noise: 25 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 40 dB 12.5 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 40 dB Page -3May 2001 MAXON SP-300 HAND HELD RX TONE DEMODULATION CHARACTERISTICS SUBAUDIO TONES - CTCSS Tone Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Hz to 250.3 Hz Non-Standard Tones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Hz to 260 Hz Due to continuing research and development the company reserves the right to alter these specifications without prior notice. Page -4May 2001 MAXON SP-300 Series HAND HELD SP-300 INTRODUCTION FEATURES The SP-300 Series of portable radios from Maxon, utilizes the latest technology in its design and manufacturing. Both the VHF and UHF models are PLL (Phase Lock Loop Synthesizer) / microprocessor controlled, and offer 1 or 5 watts of power with 4 & 16 channel capability. Multiple functions including Scan, CTCSS / DCS signaling and 12.5 & 25 kHz channel spacing are standard in these fully programmable wide bandwidth handheld units. Main Features • Wideband • Scan Mode • Busy Channel Lockout/Marked Idle Enable • Standard/Non-Standard CTCSS/DCS Signaling • Transmit Time-Out Timer/Tx Inhibit • Beep Tone Enable/Disable • Low Battery Indication • Memory Protect • External Option Detect • 5/1 Watts Programmable RF Power • Battery Save Circuitry • Locking Accessory Connector Wideband This software is made to work and control the wide band receiver/transmitter boards. Scan Mode During programming of the radio, any channel can be selected as a scanned channel. When a channel is selected as a scanned channel, it becomes part of the scan list. The scan list will be activated by switching to the channel that was selected as the scan channel during programming of the system parameters. The channel that was selected as the scan channel can still be used as a receive only channel when in scan mode or receive and transmit channel if the channel has been programmed for “Priority Scan TX”. Scan Channel Delete When the unit is in scan mode the monitor button can be pushed to delete a channel from the scan list. If the monitor button is pushed while scanning has stopped to monitor an active channel, that channel will be deleted from the scan list. The channel will remain inactive in the scan list until the scan mode is re-initiated by switching off the scan list channel and switching back to the scan list channel. Any number of channels can be deleted from the scan list in this way. The scan list is always initiated with all the scan list channels active. Page -5May 2001 MAXON SP-300 HAND HELD A priority channel can be selected while programming the radio. A priority channel is a channel that can be periodically checked or looked back to while receiving on any channel in the scan list, or in normal operation. It can also be selected for all transmissions during scan mode. To transmit on a channel in the scan list, the channel selector must be placed on the channel that the transmission is to be made on. As a system programmable option, it is possible to transmit on a scanned channel while the channel selector is on the scan list channel. This is the “Normal Scan TX” option. If this option is enabled the PTT can be pushed during the scan wait time and the transmission will be on the channel that was just activated. If this option is disabled, the transmission will be on the priority channel (if there is no priority channel programmed the transmission will be inhibited and out-of-lock indicator will be issued). Any channel, whether it is in the scan list or not, can be designated as a look back channel. When a channel is designated as a look back channel, and the channel is selected, the radio will periodically look back to the priority channel during reception on the selected channel. The radio does not require a scan list to be entered in order to use this function, however, the radio MUST have a priority channel selected for the function to work. • NOTE: The programmer must disallow the programming of a channel as a look back channel if no priority channel was selected. The channel scan speed is system programmable in a range of 50 milliseconds to 2 seconds in 10 millisecond increments. The default value is 100 milliseconds. Scan Delay Time Scan delay time is system programmable. The scan delay is the time the unit remains on a scanned channel, after receiving or transmitting on that channel. The time is programmable from 1 to 10 in 1 second increments. The default value is 4 seconds. The scan delay time will be reset each time the receive channel is active and each time the PTT is pushed on that channel. As long as the conversation continues on the channel, the receiver or the transmitter is active before the scan delay time expires, the unit will not resume scanning. As a programmable option, the LED on the top panel of the unit will flash at the scan rate while in the scan mode. If the “LED scan indication” is programmed to enable the LED will flash. If it is programmed to disable, the LED will not flash. Busy Channel Lockout If this feature is enabled, the unit will not transmit when a carrier is present. A beep tone will sound when the PTT is depressed. Marked Idle Enable If this function is enabled, the unit will transmit provided that the correct programmed CTCSS tone or DCS code has been decoded. This function is essential for repeater operation. Normal/Inverted DCS This function is selected by channel during programming of the radio. During programming of each channel of the radio, a selective signaling option for TX and RX is selected. When the DCS signaling option is elected, it can be selected as either normal or inverted. The selection can be made differently for TX and RX. Standard/Non-Standard CTCSS When programming a channel with CTCSS, any frequency from 55 to 250 Hz can be selected in 0.1 Hz increments. The radio is capable of encoding and decoding two non-standard CTCSS tones. Transmit Time-Out-Timer (TOT)/TX Inhibit The time-out-timer is system programmable for 10 seconds to 990 seconds, in 10 second increments and can also be selected as disabled. The addition to this feature is a programmable lock-out-timer that inhibits the radio transmitter for a specified time after the time-out time expires. When the time-out-timer function is enabled, and the TX inhibit function is disabled, the radio will transmit after the time-out-timer has expired and the PTT button is released and depressed again. With the TOT and TX inhibit, the radio will not transmit after the time-out has expired, even if the PTT is released and depressed again. Transmission will not be allowed until the TX inhibit time has expired. TX inhibit time is system programmable from 5 to 60 seconds in 5 second increments. The radio will beep one time, 5 seconds before the TOT time expires. This will indicate to the user that the transmitter is about to be locked out. If the PTT is released and depressed again anytime before the TOT has expired, the TOT time will be reset. If the beep tone enable/ disable is set to disable, the one beep will not be issued. The radio will beep 4 times when the TOT time expires. After the TX inhibit time passes, the radio will beep one final time. Page -6May 2001 MAXON SP-300 Series HAND HELD VCO Lock Time The micro will allow more lock time for the VCO before the out-of-lock beep indication. Low Battery Indication Low Battery Indication will be changed so that it does not inhibit RX and will allow one transmission after low cell is indicated. Low cell will not be indicated during transmit mode. If the battery goes below specified limits during the TX mode, low cell will be indicated immediately after releasing the PTT button. After the low cell indication is issued, the transmitter can only be used one time. When the PTT is pushed again and then released, the transmitter is locked out until the unit is powered down and then powered back up. Memory Protect The software is such that if the radio is inadvertently put into program mode it will not lose the contents of the EEPROM memory. Data will only move in and out of the memory when the programmer is attached. External Option Detect An input to the microprocessor will be available that will indicate to the microprocessor that the external option has been selected. This input should be connected to the external option connector. External option should be selected for each channel. If a channel is selected during programming for external option, this input should be active when the channel is selected during operation of the unit. Page -7May 2001 MAXON SP-300 HAND HELD DESCRIPTION OF CONTROLS The controls, indicators and antenna connections on the VHF and UHF Scanning Handheld Series radios are all located on the top panel. The accessories socket is located on the radio chassis right hand side. The monitor and PTT buttons are located on the radio chassis left hand side. ITEM DESCRIPTION 1. Antenna Connector 1/4" UNEF socket 2. 4 Channel Select Switch Rotary switch, used to select one of four and to engage in scanning function 3. 16 Channel Select Switch Rotary switch, used to select one of sixteen and to engage in scanning function 4. Status Indicator (busy TX/BT) Tri-colored LED indicator 5. ON/OFF Volume Control Main power switch and volume control. Fully counter-clockwise is OFF position 6. Battery Lock Used to lock the battery in place 7. Push-To-Talk Button Push to talk, release to listen 8. Monitor Button When pressed, monitors the chosen channel Used for controlling installed external option 9. Option 10. Speaker Sound reception 11. Microphone Sound transmission 12. External Speaker Socket used for external microphone with speaker 13. Belt Clip Belt Clip 14. Battery Power Supply 15. Battery Charger Contacts Contacts used for charging battery 16. VHF Antenna 17. UHF Antenna Antenna Antenna CON701 Pinouts CH ANT VOL CH 7 4 3 VOL 11 4 13 2 1 1 1 2 16 3 4 5 CON701 - Pin 1 Function Data Clock N/C +7.5V N/C N/C Gnd Mic+ N/C Int_Spkr_Mic_Dsbl Spkr+ N/C 16 13 17 12 7 maxon ANT Pin 1 2 3 4 5 6 7 8 9 10 11 12 10 6 8 9 11 14 Page -8May 2001 15 MAXON SP-300 HAND HELD THEORY OF OPERATION The VHF and UHF scanning handheld series radios are comprised of one main PCB. The main PCB contains the transmitter, receiver and control circuits. The control circuits contain the micro controller and associated digital circuits. DIGITAL CIRCUITS IC 411 is a digitally-controlled analog switch which internally consists of three single pole, double throw switches. By placing a high (5V) or low (0V) on the control lines which consists of A, B and C. A controls the X ports, B controls the Y ports and C controls the Z ports. Example: A high on control A would connect X to X1. A low on control A would connect X to X0. CTCSS/DCS Decode Circuits Discriminator audio from Pin 9 IC5 is fed into and associated parts, which are the first 2 poles of a 6th order 250 Hz Chebeyshev low pass filter. The output from pin 1 (IC406A) is fed into IC411 (Pin 2) and output to pin 15 (IC411). The signal is then fed to Pin 8 (IC407) which is a 6th order low pass Butterworth switched capacitor filter. The output from the Butterworth filter (Pin 3 IC407) is then fed to the remaining 4 poles of the 6th order Chebeyshev, which consist of IC406C and one of the two operational amplifiers internal to IC407 (MF6-100) along with associated components. Both the Chebeyshev and the Butterworth combines for a 4dB ripple low pass filter when programmed for 250 Hz. The output of IC406C (Pin 8) is fed into the remaining operational amplifier internal to IC407 (MF6-100) which forms the squaring circuit for the Decode signal. The signal is output from Pin 2 IC407 (MF6-100) and fed into IC409 (micro) where it is matched with a preprogrammed frequency. If successful, a Decode occurs, which is shown by a green L.E.D. on the top panel of the VHF and UHF Scanning Handheld and audio is heard. If valid Decode was not seen, the busy L.E.D. (Yellow) would be shown. CTCSS/DCS Encoder Circuit During TX encode the tone squelch digital signal is produced as a 3-bit parallel word at Pins 15, 16, and 18 of the micro controller (IC409). The 3-bit digital signal is converted to an analog signal by resistors R478, 479 and 480. The analog signal is fed into IC411 Pin 1. The signal is output on Pin 15 (IC411) and fed into Pin 8 of IC407 (6th order Butterworth clock tuned low pass filter). The filtered encode output from Pin 3 (IC407) is fed into Pin 13 (IC411) and output on Pin 14 (IC411). The filtered encode signal is fed to IC406B and RV403 (sub-audible gain control), the output of IC406B is then fed to the audio mixer circuit. External Mic/PTT Control Circuit The external microphone is connected via the CON701 connector on the right side of the handheld. The internal mic and speaker are disabled by grounding of pin 10 of CON701. Pulling pin 10 of CON701 low will bring the base of Q702 low, switching the transistor off. This removes the ground from the internal microphone, shutting it off. Pulling pin 10 of CON701 low will also pull the Gate of Q701 low, turning it off. This will disconnect the speaker from the rest of the circuit, shutting it off. To enable transmit the Q406 base impedance is low (below 20k ohm), Q406 and Q407 turn on and Q407 collector is low, which is connected to IC409 (micro) Pin-24. Channel Select Circuit One of 16 channels(SP-330 & 340) or one of 4 channels(SP310 & SP-320) may be selected, using the channel switch on the top panel. The channel switch encodes the channel number selected into a 4-bit binary code. The binary code plus one is equal to the channel number. The binary code is decoded by the micro controller enabling the appropriate RX or TX frequency and associated data to be selected from the EEPROM. z NOTE: Any of the channel locations may be a scan ning position. Refer to Operators Manual for further instructions. Low Battery Indicator Circuit When the battery voltage drops below 5.4 VDC, D403 and Q417 turn on. The micro controller disables the transmitter and at the same time enables the red LED and sends an alert tone to warn the user. The battery should be replaced or recharged at this time (one tx allowed after low battery). EEPROM RX/TX channels, CTCSS/DCS as well as other data from the programmer are stored in the EEPROM. The data stored is retained without power supplied. This is a non-volatile memory. The EEPROM may have information re-programmed or erased. IC408 is an EEPROM with 2048 (8x256) capacity and data is written and read serially. High Pass Filter The high pass filter is an 8-pole, 1 dB Chebeyshev active filter that comprises IC410 and associated components. The de-emphasis is provided by resistor R451 and capacitor C471. Receive audio is passed to IC410 by Pin 4 of IC411 where sub-audible tones below 300Hz are removed. Mic audio is also fed into IC410 via IC 411 (Pin 4) where subaudible voice products below 300Hz are also removed. Page -9May 2001 MAXON SP-300 HAND HELD Mute (squelch) Circuit The mute circuit which is controlled by the output of IC409 (micro) Pin 77 (386EN) is connected to Q34 via R122 which mutes the LM386IC on the RF circuits. Pin 77 also controls IC402B which mutes the audio path to the RF circuits. TX Audio And Filter Circuits The TX audio from the internal mic or external mic is fed into IC411 (Pin 3). The TX audio is output on Pin 4 (IC411) and into the high pass filter (IC410), where sub-audible voice products are removed. The TX audio output from IC410 is fed into IC404D & C, with associated parts form a mic amplifier and limiter. The output from Pin 8 IC404C is fed to RV402 (TX Modulation Level Adjust) and fed into IC404A & B to form a 3k low pass filter. The output of IC404A (Pin 1) is then fed into the Audio Mixer Circuit. Analog Ground Supply IC406D supplies (2.0V) to operational amplifiers circuits. Audio Mixer And Inverter IC405A is an audio mixer where audio and sub-audible tones are combined. RV401 is used as a balance control. IC405B is an inverter. Monitor The unit will contain a switch mounted on the PTT assembly for monitor function. This will be enabled or disabled by programming software. RF CIRCUITS Transmitter The transmitter is comprised of: 1. 2. 3. 4. 5. Buffer P.A. Module Low Pass Filter Antenna Switch A.P.C. Circuits Buffer VCO output level is -6 dBm and amplified to +10dBm (UHF), +6dBm (VHF). The buffer consists of Q16 and Q17 for isolation and gain. P.A. Module The P.A. Module consists of Q501, Q502 and Q503. Three stage amplifier Q501 amplifies the TX signal from +10 dBm to 100 mW. Q502 is amplified to 1.0W. Q503 amplifies to 5W and then matched to 50 OHM using the L.C. network, thereby reducing the harmonics by -30 dB. Low Pass Filter L7, L8, L11, C72, C73, C74 and C75 are the 7th order Chebyshev low pass filter. Unwanted harmonic are reduced by -70 dBc. Antenna Switch When transmitting, the diodes D5 and D6 are forward biased enabling the RF signal passage to the antenna. D6 is shorted to ground inhibiting the RF signal to the front end. In receive the diodes D5 and D6 are reversed biased passing the signal from the antenna through L13 and C83 to the front end without signal loss. Automatic Power Control (APC) Circuits The APC circuit containing the variable resistors RV1, RV3, IC3 and Transistors Q18,Q19,Q21 and Q22. The current from the collector of Q503 is detected at R109, it is converted to voltage at IC3A and compared with the reference voltage at IC3B. In transmit (+5V) is applied to the input of IC3B via the potential divider R45 and R46. The differential signal at the output of IC3B is passed to Q21 and Q22, This voltage controls collector voltage of Q502 that produces a constant power output. RV1 is used to adjust the high power and RV3 is used to adjust the low power. Page -10May 2001 MAXON SP-300 HAND HELD RF CIRCUITS PLL SYNTHESIZER for the non-linearity of the vco due to modulation diode, and maintain a constant modulation regardless of frequency. 12.8 MHz TCXO The TCXO contains the 3-stage thermistor network compensation and crystal oscillator and modulation ports. Compensation is +/-5 PPM or less from -30c to +60c. PLL IC Dual Modules Prescaler Input frequency of 12.8 MHzto IC2 MC14519 pin 20 is divided to 6.25 kHz or 5 kHz by the reference counter, and then supplied to comparator. RF signal input from VCO is divided to 1/64 at prescaler in IC2, Divided by A and N counter in IC2 to determine frequency steps, and then supplied to the comparator. PLL comparison frequency is 6.25/5 kHz so that minimum programmable frequency step is 5/ 6.25 kHz. A and N counter is programmed to obtain the desired frequency by serial data in CPU. In comparator, the phase difference between reference and VCO signals is compared. When the phase of reference frequency is leading, Fr is output, but when VCO frequency is leading, Fv is the output. When Fv=Fr, phase detector out is very small 0v pulse. 64/65 modulus prescaler is comprised in IC2, and has two output ports: Port A pin 16: tx enable 2 Port B pin 15: prescaler power save control in PLL IC pin 13 labeled test2 allows the technician to see the output of the dual modules pre-scaler for trouble shooting purposes, no connection should be made to this pin. Level Shifter & Charge Pump The charge pump is used for changing output signals Fr, Fv at PLL IC from 0-5v to 0-12v necessary for controlling vco. Reference Frequency LPF The Loop Filter contains R12, C21 and C22. LPF settling time is 12 mS with 1 kHz frequency. This also reduces the residual side-band noise for the best signal-to-noise ratio. DC to DC Converter The DC to DC converter converts the 5v to 14-16v to supply the necessary voltage for wide range of frequencies in the VCO. VCO The VCO consist of an RX VCO and TX VCO. Is switched TX/RX by power source. It is configured as a colpits oscillator and connected to buffer as cascade bias in order to save power. The varicap diode D201/D301 are low-resistance elements and produce a change in frequency with a change in reverse bias voltage (2-11v). L203/L303 are resonant coil, which changes the control voltage by the tuning core. D202 modulation diode, modulates the audio signal. C204 compensate RECEIVER Front End The receive signal is routed backward through the low pass filter, then onward to Pin 1 of the Hybrid Receiver Front End Module to a bandpass filter consisting of (VHF C622 through C608, L607 through L604) and (UHF C601 through C610, L601 through L603) is coupled to the base of Q601 which serves as an RF amplifier. Diode D601 serves as protection from static RF overload from nearby transmitters. The output of Q601 is then coupled to a second bandpass filter consisting of (VHF C607 through C601, L603 through L601) and (UHF C612 through C623 and L604 through L607). The output of Pin 6 is then coupled to the doubly balanced mixer D9. The receiver front end module is factory pre-tuned and requires no adjustment. Repair is effected by replacement of the entire module of the proper banded module. These are VHF 148 MHz to 174 MHz and UHF 440 MHz to 470 MHz. The receiver front end module signal pins are as follows: 1. 2. 3. 4. 5. 6. RF Input Input Ground N/A Receive +5V Ground Output First Mixer D9, T2 and T3 are double balanced mixers which provide the 45.1 MHz intermediate frequency output. The filtered frequency from the front end module is coupled to T2. The 45.1 MHz IF output is matched to the input of the 2-pole monolithic filter by L14, L31, C69 and C97. The crystal filter provides a bandwidth of +/-7.2 kHz from the operating frequency providing a high degree of spurious and intermodulation protection. Additionally, a 90 MHz trap (XF1) is also placed at the filter output to provide additional attenuation of the second order IMD. The output of the filter is impedance matched by C97 and C69 to the base of the post of filter IF amplifier Q25. Second Oscillator Mixer Limiter And FM Detector The output of the post filter amplifier, Q25, is coupled, via C98 to the input of IC5 (MC3371). IC5 is a monolithic single conversion FM transceiver, containing a mixer, the second local oscillator, limiter and quadrature detector. Crystal X1 44.645 MHz is used to provide resultant 455 kHz signal from the output of the second mixer. The mixer output is then routed to CF1 (455F) or CF2 (455HT). These ceramic Page -11May 2001 MAXON SP-300 HAND HELD filters provide the adjacent channel selectivity of 25 kHz or 12.5 kHz bandwidth. Squelch (mute) Circuit The squelch circuit switches off the power amplifier when no audio signal is present. The squelch circuit consists of a 16 kHz band pass filter and a noise detector circuit. 16 kHz Band Pass Filter The audio signal from Pin 9 of IC5 (MC3371) is filtered by a 16 kHz band pass filter consisting of L16 and L17. The noise in the IF passband is accepted and voice frequencies and their products are rejected. Any noise present at the output of the filter is applied to the noise detector circuit via RV2. RV2 is used to adjust the squelch circuit sensitivity and is normally adjusted to produce a noise squelch opening sensitivity of 10 dB to 12 dB SINAD. Noise Detector The noise detector in conjunction with IC5 consists of Q26, Q27, D8, D11, TH1, and their associated biasing components. Noise fed from the output of RV2 is amplified by Q27, then rectified by D11. This output is then buffered by Q26 and fed to Diode D8, which controls Q24 providing ground to the mute control Pin 14 of IC5. Low Pass Filter A low pass filter formed by C115, C116 and R91 removes any extraneous 455 kHz energy from the AF output of the FM receiver chip. Speaker Audio Amplifier After signal detection and audio filtering, the low level audio is returned to the RF circuit via VR3. This is then routed to Pin 3 of IC6, (LM386N-3), to provide speaker audio. IC6 is enabled by a logic high applied to Q34 which in turn enables Q33, applying power to Pin 7 of IC6. Page -12May 2001 MAXON SP-300 HAND HELD MAINTENANCE AND REPAIR GENERAL 3 4 VOL CH ANT 1 When removing or fitting, use the Exploded View and Parts List (Page 51) in conjunction with the following procedures: on x a m REMOVING & REPLACING THE BELT CLIP 2 1 Any repair or adjustment should only be made by or under the supervision of a qualified radio service technician. 2 Removing the belt clip: 1. Depress the metal release tab located on the top of the belt clip with one hand. 2. With the other hand push the belt clip out of the belt clip rail. Figure 1-Belt Clip Removal 1 To replace the belt clip: 2 1 on max ANT VOL CH Page -13May 2001 4 Figure 2-Belt Clip Installation 3 1. With the slides of the belt clip positioned in line with the belt clip guide rails, slide the belt clip into position until a click is heard. MAXON SP-300 HAND HELD REMOVING & REPLACING THE BATTERY To remove the battery: 1. Holding the radio chassis in one hand, press and hold the battery release catch on the upper back of the radio with the other hand. 1 2 1 3 4 VOL 2 1 CH 3 ANT 4 VOL CH ANT 2. Pull the battery back and away from the radio. 3. Remove the battery from the radio. 2 Figure 3-Battery Removal To replace the battery: 1. Position the battery on the battery guide rail at the bottom of the radio. 2. Move the top of the battery toward the radio until a click is heard. 2 1 3 4 REMOVING & REPLACING PTT ASSY. B VOL CH ANT A To remove the PTT assembly: 1. Remove the 2 screws located at the top and bottom of the PTT switch holder housing. This will allow removal of the PTT holder (A) and PTT pad (B). 1 Figure 4-PTT Removal Page -14May 2001 MAXON SP-300 HAND HELD 2 1 3 4 VOL 2. By placing thumb under bottom of the PTT assembly and gently pulling outward, unplug PTT Assembly from Main Board. CH ANT To replace the PTT assembly: 2 1. Reverse the steps taken to remove the PTT assembly. 2. Insure that the PTT jack is aligned properly when inserting into Main Board. REMOVING & REPLACING THE ACCESSORY CONNECTOR Figure 5-PTT Installation To remove the Accessory Connector: l A C H 2 1 L O V 1. Remove the Accessory Connector Cover (Item 2) by removing the screw (Item 1). 2. Remove the Accessory Connector (Item 5) by removing the two screws (Items 3 & 4) and pulling outwards on the Connector (Item 5) 5 6 4 To replace the Accessory Connector: 3 1. Reverse the steps taken to remove the Accessory Connector. 2 1 Figure 6-A/C Removal & Installation REMOVING & REPLACING THE ANTENNA & CONTROL KNOBS To remove the Antenna: 1. Turn the Antenna counterclockwise and remove. To replace the Antenna: 1. Reverse the steps taken to remove the Antenna. To remove the Control Knobs: 1. Grip the control knobs firmly between thumb and index finger and pull in a straight upward direction. 3 4 VOL CH ANT Page -15May 2001 2 1 To replace the Control Knobs: 1. Reverse the steps taken to remove the Control Knobs. Figure 7-Control Knob Removal & Installation Figure 9A-Back Cover Removal & Installation MAXON SP-300 HAND HELD 2 1 3 REMOVING & REPLACING THE BACK COVER VOL 4 CH ANT To remove the Back Cover: 1. Remove battery. (Refer to Removing &Replacing the Battery) 2. Unscrew the four Back Cover mounting screws located on the Back Cover of the radio. Figure 8-Back Cover Removal & Installation 3. Remove the Back Cover by pulling the lower battery bracket away from the radio. 2 1 3 4 VOL CH ANT 4. The Back Cover can now be removed by pulling the Back Cover away from the radio chassis. The self forming gasket ring (A) should remain on the Back Cover. To replace the Back Cover: 1. Reverse the steps taken to remove the Back Cover. 3 A Figure 8B-Back Cover Removal & Installation Page -16May 2001 MAXON SP-300 HAND HELD REMOVING & REPLACING THE MAIN BOARD 7 To remove the Main Board: 1. Remove the Battery (Refer to Removing & Replacing the Battery). 2. Remove the PTT Assembly (Refer to Removing & Replacing the PTT Assembly). 3. Remove the Dust Cap (Refer to Removing & Replacing the Dust Cap). 6 4. Remove the Antenna & Control Knobs (Refer to Removing & Replacing the Antenna & Control Knobs). 5. Remove the Back Cover (Refer to Removing & Replacing the Back Cover). Figure 9-Main Board Removal & Installation 6. Insert a small straight (Flat Head) screwdriver blade between the Main Board and the radio chassis. 7. Gently pull backward with the screwdriver until the Main Board has been unsnapped from the lower section of the chassis. 8 8. It may be necessary to pull the Main Board up a little more to gain easier handling for removal. z CAUTION: If performing step 8, insure that the screwdriver is placed on the metal frame of the Main Board and not directly on the Main Board PCB. Damage to the Main Board and Microprocessor could occur. Figure 9A-Main Board Removal & Installation 9. Grip the Main Board near the indicated arrows as shown in Figure 9B. 10. Gently work the Main Board in an up & down motion and pull in the direction indicated by the arrow in Figure 9B. 9 10 z CAUTION: Do not use excess force when removing the Main Board from the chassis. Damage to the speaker connection could occur. z Note: It is not necessary to remove the stud mount antenna jack from the radio. 11. Remove the Speaker wire connector from the Main Board connector. Page -17May 2001 Figure 9B-Main Board Removal & Installation MAXON SP-300 HAND HELD To replace the Main Board 1. Reverse the steps taken to remove the Main Board. 2. When installing the Main Board into the chassis insure that the LED light guide is aligned properly. 11 3. When installing the Main Board into the chassis, place 2 fingers over the black rubber control knob dust covers to insure that the dust covers do not get pushed out of the appropriate seating position. Figure 9C-Main Board Removal & Installation Page -18May 2001 MAXON SP-300 HAND HELD REMOVING & REPLACING THE DAUGHTER BOARDS The Daughter Boards are soldered into the Main Board Assy. 1. Remove the Main Board (Refer to Removing & Replacing the Main Board). 2. Unsolder the appropriate Daughter Board from the Main Board Assembly. To Replace a Daughter Board: 1. Ensure that the Main Board Assembly and Daughter Board are mechanically clean. 2. Insert the daughter board in the required position. 3. Ensure the Daughter Board is properly seated in the Main Board Assembly. 4. Solder the Daughter Board into position. COMPONENT REPLACEMENT Surface Mount Components Surface mount components should always be replaced using a temperature controlled soldering system. The soldering tools may be either a temperature controlled soldering iron or a temperature controlled hot-air soldering station. A hotair system is recommended for the removal of components on these boards. With either soldering system, a temperature of 700° F (371° C) should be maintained. The following procedures outline the removal and replacement of surface mount components. If a hot-air soldering system is employed, see the manufacturer’s operating instructions for detailed information on the use of your system. z CAUTION: Avoid applying heat to the body of any surface mount component using standard soldering methods. Heat should be applied only to the metalized terminals of the components. Hot-air systems do not damage the components since the heat is quickly and evenly distributed to the external surface of the component. z CAUTION: To avoid damage to the Main Board z CAUTION: The CMOS Integrated Circuit devices Assembly, soldering must be accomplished quickly. Refer to Component Replacement section of manual located on this page. used in this equipment can be destroyed by static discharges. Before handling one of these devices, service technicians should discharge themselves by touching the case of a bench test instrument that has a 3-prong power cord connected to an outlet with a known good earth ground. When soldering or desoldering a CMOS device, the soldering equipment should have a known good earth ground. REMOVING & REPLACING THE SPEAKER To remove the speaker: 1. Remove the Main Board (Refer to Removing & Replacing the Main Board). 2. Unscrew the two speaker mounting bracket screws from the chassis. 3. Desolder the two pin wire harness from the speaker. 4. Remove the speaker. To replace the speaker Surface Mount Removal 1. Grip the component with tweezers or small needle nose pliers. 2. Alternately heat the metalized terminal ends of the surface mount component with the soldering iron. If a hot-air system is used, direct the heat to the terminals of the component. Use extreme care with the soldering equipment to prevent damage to the printed circuit board (PCB) and the surrounding components. 3. When the solder on all terminals is liquefied, gently remove the component. Excessive force may cause the PCB pads to separate from the board if all solder is not completely liquefied. 1. Reverse the steps taken to remove the speaker. Page -19May 2001 MAXON SP-300 HAND HELD 4. It may be necessary to remove excess solder using a vacuum de-soldering tool or Solder wick . Again, use great care when de-soldering or soldering on the printed circuit boards. It may also be necessary to remove the epoxy adhesive that was under the surface mount component and any flux on the printed circuit board. the Surface Mount Component Replacement procedures. it may not be necessary to “tin” all (or any) of the IC pins before the installation process. Surface Mount Component Replacement 1. “Tin” one terminal end of the new component and the corresponding pad of the PCB. Use as little solder aspossible. 2. Place the component on the PCB pads, observing proper polarity for capacitors, diodes, transistors, etc. 3. Simultaneously touch the “tinned” terminal end and the “tinned” pad with the soldering iron. Slightly press the component down on the board as the solder liquefies. Solder all terminals, allowing the component time to cool between each application of heat. Do not apply heat for an excessive length of time and do not use excessive solder. With a hot-air system, apply hot air until all “tinned” areas are melted and the component is seated in place. It may be necessary to slightly press the component down on the board. Touch-up the soldered connections with a standard soldering iron if needed. Do not use excessive solder. z CAUTION: Some chemicals may damage the internal and external plastic parts of the radio. 4. Allow the component and the board to cool and then remove all flux from the area using alcohol or another approved flux remover. Surface Mounted Integrated Circuit Replacement Soldering and de-soldering techniques of the surface mounted IC’s are similar to the above outlined procedures for the surface mounted chip components. Use extreme care and observe static precautions when removing or replacing the defective (or suspect) IC’s. This will prevent any damage to the printed circuit board or the surrounding circuitry. The hot-air soldering system is the best method of replacing surface mount IC’s. The IC’s can easily be removed and installed using the hot-air system. See the manufacturer’s instructions for complete details on tip selection and other operating instructions unique to your system. If a hot-air system is not available, the service technician may wish to clip the pins near the body of the defective IC and remove it. The pins can then be removed from the PCB with a standard soldering iron and tweezers, and the new IC installed following Page -20May 2001 MAXON SP-300 HAND HELD PROGRAMMING ALIGNMENT PROCEDURE The SP-300 Series portable radios require the ACC-2300 programming cable. With the 25 pin “D” type connector installed on the computer, take the other end of the programming cable and insert it in the receptacle located on the opposite side of the PTT on the radio. For further information, please refer to the ACC-904 Programming Manual. The SP-300 U/V Receiver is by design, broad band, covering UHF(440 to 470 MHz) and VHF(148-174MHz) and should require no special alignment, unless repairs are performed on the receiver portion. The only alignment normally required is to the squelch circuit. Cloning Following the steps below, the frequencies and functions can be programmed from radio to radio by using a cloning cable. SQUELCH ADJUSTMENT 1. Select a receiver channel that is programmed for narrow band (12.5kHz) operation. 1. Ensure that both radios’ power switches are in the “OFF” Position. 2. Place master radio (the radio which already has desired program information in the EEPROM) in the data “WRITE” mode by holding the radio’s monitor switch and then turning radio power switch to the “ON” position (the green LED on the radio flashes). Release monitor switch on the fourth led flash. (The radio LED will change to alternating red and orange flashes.) 3. Place the slave radio (the radio which is not programmed, or has program information that will be revised) into data “READ” mode by holding monitor switch and then turning the radio power switch to the “ON” position (the green LED on the radio flashes). Release the monitor switch on the third led flash (the LED will change to alternating green and orange flashes). 2. Set the RF signal generator to the receiver frequency. Set the AF modulation signal to 1 kHz at 1.5K deviation. 3. Adjust the RF output level of the RF signal generator until the 1kHz signal is heard. 4. Adjust the RF signal to the level desired for squelch sensitivity as you monitor SINAD. This is usually 8dB to 12 dB sinad. 5. On the Main board, adjust RV2 until the squelch is just unmuted (open). 6. Switch off the RF generator (squelch should close). 7. Switch on the RF generator, Squelch should open at the SINAD point where RV2 was adjusted. 8. Select a receiver channel that is programmed for wide band operation (25kHz). 9. Set the RF signal generator to the receiver frequency. Set the AF modulation signal to 1 kHz at 3K deviation. 4. Connect the cloning cable through mic jack. 5. Press the slave radio’s monitor switch. The alternating green and orange flashing will stop. 6. Press the master radio’s monitor switch. The alternating red and orange flashing will stop. Release the monitor switch, the green led of both radios will flash. 10. Adjust the RF output level of the RF signal generator until the 1kHz signal is heard. 11. Adjust the RF signal to the level desired for squelch sensitivity as you monitor SINAD. This is usually 8dB to 12 dB SINAD. 7. After cloning, the slave radio resets and works normally with re-programmed frequency, and the master radio flashes orange led. Press monitor switch, and then the radio will repeat step 2). 12. On the Main board, adjust RV4 until the squelch is just unmuted (open). 8. For cloning other radios, repeat steps 3 through 7. 14. Switch on the RF generator, Squelch should open at the SINAD point where RV4 was adjusted. Page -21May 2001 13. Switch off the RF generator (squelch should close). MAXON SP-300 HAND HELD 15. Disconnect the test equipment. Should repairs be required, the following procedures should be applied: 1b. Switch to a channel with the same frequency and CTCSS of 250.3Hz. Push PTT and adjust RV401 to desired CTCSS tone deviation, same as above step. RX VCO 1. Set the unit to the highest receive frequency, 470 MHz(UHF), 174MHz(VHF) and adjust the VCO L303 to 10 volts. 1c. Switch between the 67Hz channel and the 250.3Hz channel and adjust RV401 until the deviation is the same on both channels. It may be necessary to readjust RV403 to get the desired deviation. 2. Set the unit to the lowest receive frequency 440 MHz(UHF), 148(VHF) and check that the VCO voltage is above 2.0 volts. Adjust L303 for 2.0 volts. 2. Inject a 6mV signal of 1000Hz to the microphone input. This should produce a 3kHz deviation for 25kHz(S) channel spacing and 1.5kHz for 12.5kHz(N) channel spacing, measure transmit distortion, that should be less than 5%. Increase the audio input level to 20mV. z Note: Use TP1 to measure the voltage. 3. Set the deviation by adjusting RV402 to 4.5kHz for 25kHz channel spacing(S) and to 3kHz for 12.5kHz channel spacing(N) on a non-CTCSS or DCS channel for the initial setting. Select a CTCSS or DCS frequency and verify that the deviation is less than or equal to 5kHz(S) and 3kHz(N). RECEIVER 1. Apply a standard test signal to the receiver antenna terminals. 2. Adjust T1 for maximum sensitivity and audio output with minimum audio distortion. TRANSMITTER Connect the unit to a Service Monitor with the power meter setting to the 10 W scale (or autorange). TCXO Set the channel selector to the mid-range frequency 460 MHz, adjust TC701(VHF) on the TCXO board, RV5 (UHF) on the Main board, for a reading of 460 MHz +/-200 Hz (155 MHz VHF models). 4. Vary the audio frequency from 300 to 3000Hz and verify that the deviation does not exceed 5kHz(S) and 3kHz(N). APC 1. Select a channel which is programmed with high power. While transmitting, adjust RV1 in the APC circuit for 5 watts +/- 0.1 watt. TX VCO 1. Set the unit to the highest transmit frequency, 470 MHz(UHF), 174MHz(VHF) and adjust the VCO L203 to 10 volts. 2. Set the unit to the lowest transmit frequency 440 MHz(UHF), 148(VHF) and check that the VCO voltage is above 2.0 volts. If voltage is below 2.0 volts, adjust L203 for 2.0 volts or more. CTCSS, DCS & DEVIATION ALIGNMENT 1a. Set the unit to a mid-frequency range and a CTCSS of 67Hz. Push PTT and adjust RV403 for desired CTCSS tone deviation. Page -22May 2001 2. Select a channel which is programmed with low power. While transmitting, adjust RV3 in the APC circuit for 1watt +/-0.1 watt. MAXON SP-300 HAND HELD TEST EQUIPMENT SETUP WATT METER 20dB AUDIO MODULATION- METER AUDIO GENERATOR RADIO OSCILLOSCOPE DC POWER SUPPLY SPECTRUM ANALYZER 154.625445681125661 FREQUENCY COUNTER VOLT METER SSG 3K Dev @ 1K (25 kHz Channel Spacing) 1.5K Dev @ 1K (12.5 kHz Channel Spacing) OSCILLOSCOPE RADIO DISTORTION METER DC POWER SUPPLY SINAD METER 1. S.S.G. : @ 1kHz Audio: Page -23May 2001 MAXON SP-300 HAND HELD ALIGNMENT POINTS DIAGRAM RV1 RV2 RV2 RV4 RV4 RV1 T1 RV3 T1 RV3 TCXO1 RV5 TC701 L203 RV401 RV402 L203 L303 RV401 TP1 RV403 RV402 L303 TP1 RV403 ALIGNMENT POINTS UHF WITH OUT TCXO MODULE ALIGNMENT POINTS VHF & UHF WITH TCXO MODULE Page -24May 2001 MAXON SP-300 HAND HELD TROUBLESHOOTING GUIDE SYMPTOMS Unit does not Work Warning Tone & No Work Defective RX Audio Bad RX Sensitivity (-10 to -60db) Defective RX PLL Error Low TX power Output No TX power No modulation No s.a.t.(tone) No programming CAUSES 1. Complete discharge of battery (7.5v+/-10%) 2. Fuse blown up (4a) 3. 5v voltage source 1. Low battery (lower than 5.6v) 2. Pll error 3. Filtering error 4 .EEPROM fail 1. No audio at speaker 2. Busy lamp (yellow Color) is o.k. but no Audio 1. Defective ANT sw 2 .Defective front-end 3. Defective dbm 4. IF IC 5. VCO level drop 6. Change of 1st local Frequency 1. VCO frequency change or level drop 2. Defective voltage source 1. Defective 12.8 MHz TCXO 2. Voltage source for Rx VCO/TX VCO 3. Defective PLL IC 1. APC 1. TX buffer 2. Power module 3. APC control 1. Condenser mic 2. Sw IC & mic amp IC 1. 250 hz LPF 2. RV403 adjustment 1. Short protector VCC Page -25May 2001 COUNTER MEASURES 1. Replace battery 2. Replace fuse 3. IC1 (5v+/-0.2v) 1. Replace or charge battery 2. Check TCXO/ VCO/ PLL IC 3. Check LPF (IC407) 4. Re-programming 1. Replace speaker or check wire 2. Check tone ch, audio amp(IC6) 300hz HPF (IC410) Sw IC (IC402B, IC411) 1. Check D5,D6 2. Check Q601 3. Check D9,T2,T3 4. Replace IC5 5. Rx VCO level>2dbm 6. Retune TCXO 1. Repair RX VCO 2. Defective IF IC(IC5) 3. IC1,Q1,Q3 1. Replace TCXO 2. Check RX VCO/TX VCO 3. Replace IC2 1. Re-adjust RV1 1. Check Q16,17 2. Check Q501,502,503 3. Check Q22,D4 1. Check mic 2. Check IC411, 410, 405, 401,404 1. Check IC406,407,411 2. Re-adjust RV403 1. Check 6v on Q412, 413 2. Defective programming lead MAXON SP-300 HAND HELD VOLTAGE CHARTS CONTROL CIRCUIT RX REF # B C Q401 4.4 Q403 0.0 Q404 Q405 TX E B C E 0.0 5.0 0.3 5.0 5.0 4.6 GND 0.0 4.6 GND 5.0 2.2 2.0 0.0 7.0 0.0 5.0 1.8 1.7 5.0 1.8 1.7 Q406 4.0 0.0 5.0 2.0 5.0 5.0 Q407 0.0 4.5 GND 5.0 0.0 GND Q408 0.0 5.0 GND 2.0 0.0 GND Q410 4.3 0.0 5.0 4.3 0.0 5.0 GND Q411 0.0 - GND 0.0 0.0 Q412 0.0 7.5 7.5 0.0 7.5 7.5 Q413 7.5 0.0 GND 7.5 0.0 GND z NOTE: Q402 and Q409 are not fitted on this model series. MAIN CIRCUIT RX TX REF # B C E B C E Q1 0.6 5.0 5.0 0.6 5.0 5.0 Q2 5.0 0.0 5.0 0.3 4.7 5.0 Q3 0.0 4.7 5.0 5.0 0.0 5.0 Q4 0.0 5.0 5.0 0.0 5.0 5.0 Q5 4.7 0.0 5.0 4.7 0.0 5.0 Q6 4.0 18.0 5.0 4.0 18.0 5.0 Q7 18.0 ~3.0 18.0 18.0 ~4.0 18.0 Q8 5.0 0.0 5.0 5.0 0.0 5.0 Q11 0.0 3.0 0.0 0.0 4.0 0.0 Q12 1.6 4.5 1.0 0.0 0.0 0.0 Q13 4.6 4.6 4.0 0.0 0.0 0.0 Q14 0.0 0.0 0.0 4.6 4.6 4.0 Q16 0.0 0.0 0.0 1.4 4.8 0.8 Q17 0.0 0.0 0.0 0.6 3.0 GND Q18 0.0 0.0 0.0 5.0 0.2 GND Q21 0.0 0.0 0.0 ~3.0 ~5.6 ~2.4 Q22 7.5 0.0 7.5 6.9 ~7.0 7.5 Q24 0.0 4.5 GND 0.0 0.0 GND Q25 0.7 4.0 GND 0.0 0.0 GND Q26 - - - 0.0 0.0 0.0 Q27 0.7 NOISE GND 0.0 0.0 GND Q33 7.2 4.0 7.5 6.9 7.5 7.5 Q34 0.0 6.6 GND 2.0 0.0 GND z NOTE: Q9, 10, 15, 19, 20, 23 and 28 - 32 are not fitted on this model series. z NOTE: ~ indicates approximate voltage. Actual voltage may vary. Page -26May 2001 MAXON SP-300 HAND HELD RECEIVE STATE PIN # IC1 IC2 IC3 IC5 IC6 IC401 IC402 1 GND 1.6 - 2 GND 5.0 - 4.0 1.4 0.0 0.0 3.5 GND 1.0 3 GND 5.0 0.0 - 4.0 0.0 1.3 AUDIO 4 5.0 5 GND 5.0 - 4.1 GND 0.0 0.0 5.0 - 3.8 AUDIO 0.0 6 7.5 5.0 0.0 - 3.8 7.5 0.0 0.0 7 0.0 - 3.8 4.0 0.0 0.0 8 0.0 - 4.2 1.5 2.0 0.0 9 5.0 AUDIO 0.0 4.0 10 2.6 0.8 4.0 0.0 11 2.6 1.0 4.0 0.0 12 5.0 0.0 5.0 0.0 13 3.0 4.0 0.0 0.0 14 5.0 GNS 5.0 5.0 15 0.0 0.0 16 0.0 1.8 17 5.0 18 0.0 19 0.0 20 2.5 PIN # IC404 IC406 IC407 IC408 IC410 IC411 1 - 3.0 1.9 0.0 AUDIO 2.0 2 - 1.9 0.0 0.0 AUDIO AUDIO 3 - 1.9 1.9 0.0 AUDIO 4.0 4 - 5.0 1.9 0.0 5.0 AUDIO 5 - 1.9 1.9 GND AUDIO AUDIO 6 - 1.9 5.0 5.0 AUDIO GND 7 - 1.9 1.9 5.0 AUDIO GND 8 - 1.9 A 5.0 AUDIO GND 9 - 1.9 CLK AUDIO 0.0 10 - 1.9 0.0 AUDIO 0.0 11 - GND 5.0 5.0 5.0 12 - 1.9 0.0 AUDIO 0.0 13 - 1.9 1.9 AUDIO 1.9 14 - 1.9 1.9 AUDIO 1.9 15 AUDIO 16 5.0 17 18 19 20 z NOTE: IC4, 403 and 405 are not fitted on this model series. Page -27May 2001 MAXON SP-300 HAND HELD TRANSMIT STATE PIN # IC1 IC2 IC3 IC5 IC6 IC401 IC402 1 GND 1.6M 0.0 2 GND 5.0 0.0 - 1.3 1.9 0.0 - GND 1.9 3 GND 5.0 0.0 0.0 - 0.0 1.9 0.0 4 5.0 5 GND 5.0 GND - GND 1.9 0.0 5.0 - - 1.5 0.0 6 7.5 0.0 0.0 - - 7.5 0.0 0.0 7 0.0 - - 7.5 0.0 GND 8 0.0 5.0 - 1.5 1.9 0.0 9 5.0 - 1.9 2.1 10 2.6 - 2.1 0.0 11 2.6 - 2.2 0.0 12 5.0 - 2.2 0.0 13 3.0 - 5.0 0.0 14 0.0 - 5.0 5.0 15 0.0 5.0 16 5.0 5.0 17 5.0 18 0.0 19 0.0 20 2.5 PIN # IC404 IC406 IC407 IC408 IC410 IC411 1 A 3.7 1.9 0.0 AUDIO 2.0 2 AUDIO 1.9 0.0 0.0 AUDIO 4.0 3 AUDIO 1.9 1.9 0.0 AUDIO 1.9 4 5.0 5.0 1.9 0.0 5.0 1.9 5 AUDIO 1.9 1.9 GND AUDIO 0.0 6 AUDIO 1.9 5.0 5.0 AUDIO GND 7 AUDIO 1.9 1.9 5.0 AUDIO GND 8 AUDIO 1.9 A 5.0 AUDIO GND 9 AUDIO 1.9 CLK AUDIO 5.0 10 AUDIO 1.9 0.0 AUDIO 5.0 11 GND 0.0 5.0 GND 0.0 12 AUDIO 1.9 0.0 AUDIO 1.9 13 AUDIO 1.9 1.9 AUDIO 1.9 14 AUDIO 1.9 1.9 AUDIO 0.0 15 0.0 16 5.0 17 18 19 20 Page -28May 2001 MAXON SP-300 HAND HELD SP-300 SERIES UHF & VHF DIGITAL SECTION PARTS LIST REF# DESCRIPTION PART# DIGITAL SECTION VHF& UHF (COMMON PARTS) PTT SWITCH BOARD (SEE NOTE1) 650-180-0017 FUSE BOARD ASSY 650-200-0004 C136 C400 C404 C405 C406 C413 C414 C415 C416 C417 C418 C419 C420 C421 C422 C423 C424 C425 C426 C427 C428 C429 C430 C431 C432 C433 C434 C435 C436 C437 C438 C439 C441 C442 C443 C444 C446 C448 C449 C452 C453 C454 C455 C456 C458 C459 C460 C461 C462 C463 CAP,TA,100UF 293D107X0006E2T6V CAP,CER,0.0068UF,50V,5%,X7R,1/16W,0603 CAP,CER,.047UF,0603, CAP,CER,0.001UF,10%,50V,X7R,0603 CAP,CER,0.1UF,+80-20%,25V,Y5V,0603 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,220PF,5%,50V,COG,0603 CAP,CER,220PF,5%,50V,COG,0603 CAP,CER,220PF,5%,50V,COG,0603 CAP,CER,220PF,5%,50V,COG,0603 CAP,CER,220PF,5%,50V,COG,0603 CAP,CER,0.01UF,5%,50V,X7R,0603 CAP,TA,10UF,293D106X06R3A2T6.3V CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,0.001UF,10%,50V,X7R,0603 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,0.1UF,+80-20%,25V,Y5V,0603 CAP,TA,4.7UF,20%,10V,3216 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,0.1UF,+80-20%,25V,Y5V,0603 CAP,CER,0.1UF,10%,50V,X7R,0603 CAP,CER,0.022UF,10%,50V,X7R,0603 CAP,CER,1UF,+80-20%,16V,Y5V,0805 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,0.0018UF,50V,10%,X7R,1/16W,0603 CAP,CER,0.022UF,10%,50V,X7R,0603 CAP,CER,0.0047UF,10%,50V,X7R,0603 CAP,CER,0.01UF,5%,50V,X7R,0603 CAP,CER,47PF,5%,50V,COG,0603 CAP,CER,47PF,5%,50V,COG,0603 CAP,CER,0.033UF,10%,16V,X7R,0603 CAP,CER,0.1UF,10%,25V,X7R,0805 CAP,CER,0.0033UF,50V,10%,X7R,1/16W,0603 CAP,CER,.68UF,+/-20%,50V,Y5V,0805 CAP,CER,.082UF,10%,50V,X7R,0805 CAP,CER,120PF,0603,5%,50V CAP,CER,0.1UF,10%,25V,X7R,0805 CAP,CER,0.1UF,+80-20%,25V,Y5V,0603 CAP,CER,15PF,5%,50V,COG,0603 CAP,CER,15PF,5%,50V,COG,0603 CAP,CER,.047UF,+80-20%,50V,Y5V,0805 CAP,CER,.047UF,+80-20%,50V,Y5V,0805 102-013-3107 100-521-1682 100-813-1473 100-621-1102 100-813-1104 100-621-1471 100-621-1471 100-621-1471 100-621-1471 100-520-1221 100-520-1221 100-520-1221 100-520-1221 100-520-1221 100-521-1103 102-013-0106 100-621-1471 100-621-1471 100-621-1471 100-621-1102 100-621-1471 100-621-1471 100-813-1104 102-023-0475 100-621-1471 100-621-1471 100-813-1104 100-621-1104 100-621-1223 100-803-2105 100-621-1471 100-621-1471 100-621-1181 100-621-1223 100-621-1472 100-521-1103 100-520-1470 100-520-1470 100-601-1333 100-611-2104 100-621-1332 100-723-2684 100-621-2823 100-520-1121 100-611-2104 100-813-1104 100-520-1150 100-520-1150 100-823-2473 100-823-2473 NOTES: 1. Components are not available,assembly is non-repairable. REF# C464 C465 C466 DESCRIPTION CAP,CER,.033UF,10%,50V,0805 CAP,CER,.033UF,10%,50V,0805 CAP,CER,.033UF,10%,50V,0805 PART# 100-623-2333 100-623-2333 100-623-2333 C467 CAP,CER,.033UF,10%,50V,0805 100-623-2333 C468 CAP,CER,.033UF,10%,50V,0805 100-623-2333 C469 CAP,CER,.047UF,+80-20%,50V,Y5V,0805 100-823-2473 C470 CAP,CER,1UF,+80-20%,16V,Y5V,0805 100-803-2105 C471 CAP,CER,0.1UF,+80-20%,25V,Y5V,0603 100-813-1104 C472 CAP,CER,0.001UF,10%,50V,X7R,0603 100-621-1102 C474 CAP,CER,1UF,+80-20%,16V,Y5V,0805 100-803-2105 C476 CAP,CER,0.1UF,+80-20%,25V,Y5V,0603 100-813-1104 C477 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 C478 CAP,TA,10UF,293D106X0004A2T4V 102-003-0106 C479 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 C480 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 C481 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 C482 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 C483 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 C484 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 C485 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 C701 CAP,TA,10UF,293D107X0006E2T6V 102-013-3107 CH404 SW,ROTARY,EC10RP04-66(4Channel) 830-010-0010 CH404 SW,ROTARY,EC10RP04-66(16Channel) 830-010-0011 CON401 CONN, SMTSTRIPS,MMT-104-01-T-SH-P-TR 140-030-0062 CON404 SKT,14P/SIP,STR,LP,52231-1417 140-020-0032 CON406 PIN,HDR,4P/SIP,R ANG,SHROUD,WAF, 140-030-0043 CON701 CONNECTOR SOCKET 140-020-0054 D401 DIODE,SW,KDS181S,SOT-23 D402 DIODE,SW,KDS181S,SOT-23 220-010-0004 D403 DIODE,SW,KDS193,SOT-23 220-010-0003 D404 DIODE,SW,KDS184S,SOT-23 220-010-0002 D405 DIODE,ZNR,5.6V,SOT-23,0.225W,MMBZ5232 221-010-0056 D406 DIODE,ZNR,5.6V,SOT-23,0.225W,MMBZ5232 221-010-0056 D407 DIODE,ZNR,5.6V,SOT-23,0.225W,MMBZ5232 221-010-0056 D701 DIODE,ZNR,5.6V,SOT-23,0.225W,MMBZ5232 221-010-0056 IC401 IC,SW/MUX,MC14066BDR2,SO-14,A-SW 444-050-0001 IC402 IC,SW/MUX,MC14066BDR2,SO-14,A-SW 444-050-0001 IC404 IC,OPAMP,KIA324F,SO-14,QUAD 441-030-0002 IC405 IC,OPAMP,LM358M,SO-8,DUALOPAMP 441-030-0006 IC406 IC,OPAMP,KIA324F,SO-14,QUAD 441-030-0002 IC407 IC,FILTER,BLP,MF6CWM-100,SO-14 441-090-0001 IC408 IC,EEPROM,AT93C56-10SI,SO-08,2K,VCC2-5V 442-010-0003 IC409 IC,CPU,OTP,HD4074818H,FP-80A,4BIT 443-103-0001 IC410 IC411 L410 LED1 IC,OPAMP,KIA324F,SO-14,QUAD IC,A-MUX/DEMUX,MC14053BD,SO-16,3PDT COILCHIP,10UH:LER015T100K LEDCHIP,SML-020MLTT86SMD 441-030-0002 440-060-0001 371-005-3103 240-030-0035 Q401 TRANS,BRT,PNP,KRA110SPK,SOT-23,SW,PK 870-010-0010 Q403 TRANS,BRT,NPN,KRC104S,SOT-23,SW,ND 870-020-0001 Q404 TRANS,BRT,NPN,KRC104S,SOT-23,SW,ND 870-020-0001 Q405 TRANS,BRT,NPN,KRC104S,SOT-23,SW,ND 870-020-0001 Q406 TRANS,PNP,BRT,KRA101S,SOT-23,SW,PA 870-010-0002 Q407 TRANS,NPN,KRC101S,BRT,SOT-23 870-020-0002 Q410 TRANS,KRA104S,SOT-23 870-010-0005 Q411 TRANS,BRT,NPN,KRC104S,SOT-23,SW,ND 870-020-0001 Q412 TRANS,KRA104S,SOT-23 870-010-0005 Page -29May 2001 SSW-106-02-G-D-RA 220-010-0004 MAXON SP-300 HAND HELD REF# DESCRIPTION Q413 TRANS,BRT,NPN,KRC104S,SOT-23,SW,ND Q416 Q417 PART# REF# DESCRIPTION PART# 870-020-0001 R461 RES,TF,1M,5%,1/16W,+/-200,0603 741-102-1105 TRANS,BRT,PNP,KRA110SPK,SOT-23,SW,PK 870-010-0010 R464 RES,TF,4.7K,5%,1/16W,+/-200,0603 741-102-1472 TRANS,PNP,KTA1504(Y),SOT-23,SW 870-100-0004 R469 RES,TF,2.2K,5%,1/16W,TC250,0603 741-102-1222 Q701 FET, 2SK 1579-TMOS 870-030-0001 R470 RES,30K,1/16W5%T 1608 741-102-1303 Q702 TRANS,,NPN,KTC3875S(BL) 870-200-0006 R471 RES,30K,1/16W5%T 1608 741-102-1303 R9 RES,TF,68,5%,1/10W,TC250,0805 741-117-2680 R472 RES,36K,1/16W5%T 1608 R9A RES,TF,68,5%,1/10W,TC250,0805 741-117-2680 R473 RES,43K,1/10W,5%,T2012 MCR10EZH433J R100 RES,TF,470,5%,1/16W,TC250,0603 741-102-1471 R474 RES,43K,1/10W,5%,T2012 MCR10EZH433J R200 RES,1.2K 1/16W5%T1608 741-102-1122 R475 RES,TF,47K,5%,1/16W, +/-200,0603 R400 RES, 9.1K 1/16W 5% T 1608 741-102-1912 R476 RES,360K,1/10W,5%,T2012 741-117-2364 R401 RES,TF,680K, 5%, 1/16W, +/-200, 0603 741-102-1684 R477 RES,TF,120K,5%,1/16W, +/-200,0603 741-102-1124 R402 RES,8.2K,1/16W,5%,T 1608 741-102-1822 R483 RES,TF,2.2K,5%,1/16W,TC250,0603 741-102-1222 R403 RES,8.2K,1/16W,5%,T 1608 741-102-1822 R484 RES,TF,4.7K,5%,1/16W,+/-200,0603 741-102-1472 R404 RES,8.2K,1/16W,5%,T 1608 741-102-1822 R485 RES,TF,220K,5%,1/16W,T1608 741-102-1224 R405 RES,TF,100K,5%,1/16W,+/-200,0603 741-102-1104 R487 RES,TF,120K,5%,1/16W, +/-200,0603 741-102-1124 R406 RES,8.2K,1/16W,5%,T 1608 741-102-1822 R488 RES,TF, 0,5%,1/16W, +/-200,0603 741-102-1000 R408 RES,TF,22K,5%,1/16W, +/-200,0603 741-102-1223 R489 RES,TF,4.7K,5%,1/16W,+/-200,0603 741-102-1472 R410 RES,TF,3.3K,5%,1/16W,+/-200,0603 741-102-1332 R490 RES,TF,2.2K,5%,1/16W,TC250,0603 741-102-1222 R411 RES,TF,270K,1/16W 5%T1608 741-102-1274 R493 RES,TF,22K,5%,1/16W, +/-200,0603 741-102-1223 R412 RES,TF,22K,5%,1/16W, +/-200,0603 741-102-1223 R701 RES,TF,2.2K,5%,1/16W,TC250,0603 741-102-1222 R414 RES,TF,10K,5%,1/16W, +/-200,0603 741-102-1103 R702 RES,TF,12K,5%,1/16W T 1608 741-102-1123 R415 RES,TF,47K,5%,1/16W, +/-200,0603 741-102-1473 R703 RES,TF,12K,5%,1/16W T 1608 741-102-1123 R416 RES,TF,10K,5%,1/16W, +/-200,0603 741-102-1103 R704 RES,TF,100K,5%,1/16W,+/-200,0603 741-102-1104 R418 RES,TF,560, 5%,1/16W, +/-200,0603 741-102-1561 RV401 POT,ROTARY,47K,3MMDIA,SMD 901-001-0473 R421 RES,TF,47K,5%,1/16W, +/-200,0603 741-102-1473 RV402 POT,ROTARY, 22K,SMD 901-001-0223 R422 RES,TF,47K,5%,1/16W, +/-200,0603 741-102-1473 RV403 POT,ROTARY,47K,3MMDIA,SMD 901-001-0473 R423 RES,1.2K 1/16W5%T1608 741-102-1122 X401 XTAL,3.579545MHZ,CP12A,12PF 162-000-0036 R424 RES,TF,10K,5%,1/16W, +/-200,0603 741-102-1103 R425 RES,220K,1/16W,5%,T 1608 741-102-1224 R426 RES,1.2K,1/16W,5%,T1608 741-102-1122 R427 RES,TF,100K,5%,1/16W,+/-200,0603 741-102-1104 R428 RES,TF,10K,5%,1/16W, +/-200,0603 741-102-1103 C447 CAP,CER,0.022UF,10%,50V,X7R,0603 100-621-1223 R429 RES,27K,1/16W,5%,T1608 741-102-1273 C486 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 R430 RES,220K,1/16W,5%,T1608 741-102-1224 R409 RES,TF,150K,5%,1/16W, +/-200,0603 741-102-1154 R431 RES,TF,47K,5%,1/16W, +/-200,0603 741-102-1473 R417 RES,TF,560, 5%,1/16W, +/-200,0603 741-102-1561 R432 RES,TF,4.7K,5%,1/16W,+/-200,0603 741-102-1472 R459 RES,1.2K 1/16W5%T1608 741-102-1122 R433 RES,TF,47K,5%,1/16W, +/-200,0603 741-102-1473 R478 RES,TF,39K,5%,1/16W,TC250,0603 741-102-1393 R434 RES,TF,47K,5%,1/16W, +/-200,0603 741-102-1473 R479 RES,TF,20K,5%,1/16W,+/-200,0603 741-102-1203 R435 RES,TF,6.8K,5%,1/16W,+/-200,0603 741-102-1682 R480 RES,TF,10K,5%,1/16W, +/-200,0603 741-102-1103 R439 RES,TF,3K,5%,1/16W,T1608 741-102-1302 R486 RES,TF,33K,5%,1/16W,+/-200,0603 741-102-1333 R440 RES,TF,4.7K,5%,1/16W,+/-200,0603 741-102-1472 R441 RES,3.9K,1/16W5%T 1608 741-102-1392 R442 RES,27K,1/16W5%T 1608 741-102-1273 R443 RES,TF,2.4K,5%,1/16W,+/-200,0603 741-102-1242 R444 RES,TF, 82K,5%,1/16W,+/-200,0603 741-102-1823 C447 CAP,CER,0.0018UF,5%,50V,X7R,0805 R446 RES,820,1/16W,5%,T1608 741-102-1821 C486 N/A R447 RES,220K,1/16W,5%,T1608 741-102-1224 R409 RES,TF,220K,5%,1/16W,TC250,0603 741-107-1224 R449 RES,TF,20K,5%,1/16W,+/-200,0603 741-102-1203 R417 RES,TF,2.2K,5%,1/16W,TC250,0603 741-102-1222 R450 RES,TF,33K,5%,1/16W,+/-200,0603 741-102-1333 R459 RES,TF,10K,5%,1/16W, +/-200,0603 741-102-1103 R451 RES,TF,10K,5%,1/16W, +/-200,0603 741-102-1103 R478 RES,200K,1/16W,5%,T1608 741-102-1204 R452 RES,TF,2.2K,5%,1/16W,TC250,0603 741-102-1222 R479 RES,TF,100K,5%,1/16W,+/-200,0603 741-102-1104 R453 RES,TF,1M,5%,1/16W,+/-200,0603 741-102-1105 R480 RES,51K,1/16W,5%,T1608 741-102-1513 R454 RES,TF,22K,5%,1/16W, +/-200,0603 741-102-1223 R486 RES,18K,1/16W,5%,T1608 741-102-1183 R456 RES,TF,22,1/16W,5%,T 1608 741-102-1220 R457 RES,TF,22K,5%,1/16W, +/-200,0603 741-102-1223 R460 RES,TF,47K,5%,1/16W, +/-200,0603 741-102-1473 741-102-1363 741-117-2433 741-117-2433 741-102-1473 DIGITAL SECTION(VHFPARTS) DIGITAL SECTION(UHF PARTS) Page -30May 2001 100-621-2185 MAXON SP-300 HAND HELD SP-300 SERIES VHF RF SECTION PARTS LIST REF # DESCRIPTION REPLACEMENT MODULES FRONT ENDASSY, VHF(SEE NOTE 1) VCOTX/RX ASSY, VHF (SEE NOTE 1) POWERAMPASSY, VHF(SEE NOTE 1) TCXO ASSY, VHF(SEE NOTE 1) PART # 650-110-0012 650-030-0021 650-230-0012 650-100-0002 COMPONENTS C1 CAP,CER,0.001UF,10%,50V,X7R,0603 100-621-1102 C2 CAP,TA,10UF,293D106X06R3A2T6.3V 102-013-0106 C3 CAP,CER,0.001UF,10%,50V,X7R,0603 100-621-1102 C4 CAP,CER,0.001UF,10%,50V,X7R,0603 100-621-1102 C5 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 C6 CAP,TA,4.7UF,20%,10V,3216 102-023-0475 C7 CAP,CER,0.001UF,10%,50V,X7R,0603 100-621-1102 C8 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 C9 CAP,CER,0.001UF,10%,50V,X7R,0603 100-621-1102 C11 CAP,CER,0.1UF,+80-20%,25V,Y5V,0603 100-813-1104 C12 C13 CAP,TA,10UF,293D106X06R3A2T6.3V CAP,CER,0.01UF,5%,50V,X7R,0603 102-013-0106 100-521-1103 C14 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 C15 CAP,CER,0.1UF,+80-20%,25V,Y5V,0603 100-813-1104 C16 CAP,CER,2PF,.25%,50V,COG,0603 100-020-1020 C17 CAP,CER,0.1UF,+80-20%,25V,Y5V,0603 100-813-1104 C18 CAP,CER,0.001UF,10%,50V,X7R,0603 100-621-1102 C19 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 C20 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 C21 CAP,METAL,POLY,0.33UF,63VBOX 083-013-2334 C22 CAP,METAL,POLY,.022UF,63VBOX 083-013-2223 C23 CAP,MYLAR,.01UF,63VKBOXTYPE 083-014-2103 C24 CAP,MYLAR,.01UF,63VKBOXTYPE 083-014-2103 C25 CAP,CER,1UF,+80-20%,16V,Y5V,0805 100-803-2105 C26 CAP,CER,0.1UF,+80-20%,25V,Y5V,0603 100-813-1104 C34 CAP,CER,220PF,5%,50V,COG,0603 100-520-1221 C35 CAP,CER,0.001UF,10%,50V,X7R,0603 100-621-1102 C36 CAP,CER,14PF,5%,50V,COG,0805 100-520-2140 C37 CAP,CER,33PF,5%,50V,COG,0603 100-520-1330 C38 CAP,CER,43PF GRM40COG430J50VPT 100-520-2430 C39 CAP,CER,0.001UF,10%,50V,X7R,0603 100-621-1102 C42 CAP,CER,0.001UF,5%,50V,COG,0805 100-520-2102 C43 C44 CAP,CER,3PF,.25PF,50V,COG,0603 CAP,TA,4.7UF,20%,10V,3216 100-020-1030 102-023-0475 C45 CAP,CER,10PF,.5%,50V,COG,0603 100-120-1100 C46 CAP,CER,8PF,50V,.5PF,COG,1/16W,0603 100-120-1080 C47 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 C50 CAP,CER,33PF,5%,50V,COG,0603 100-520-1330 C51 CAP,CER,10PF,5%,50V,COG,0603 100-120-1100 C53 CAP,CER,1UF,+80-20%,16V,Y5V,0805 100-803-2105 C54 CAP,CER,0.001UF,10%,50V,X7R,0603 100-621-1102 C55 CAP,CER,0.001UF,10%,50V,X7R,0603 100-621-1102 C57 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 C58 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 REF # DESCRIPTION PART # C59 CAP,CER,0.47UF GRM40Y5V474Z16VPT 100-803-2474 C60 CAP,TA,4.7UF,20%,10V,3216 102-023-0475 C61 C62 C63 C64 C65 C66 C67 C68 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,0.01UF,5%,50V,X7R,0603 CAP,CER,470PF,10%,50V,X7R,0603 CAP,TA,10UF,20%,10V,B,3528 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,0.001UF,5%,50V,COG,0805 100-621-1471 100-621-1471 100-521-1103 100-621-1471 102-023-1106 100-621-1471 100-621-1471 100-520-2102 C70 C72 C73 C74 C75 C76 C77 C78 C79 C81 C82 C83 C84 C86 C87 CAP,CER,1UF,+80-20%,16V,Y5V,0805 CAP,CER,6PF,0.5PF,50V,COG,0805 CAP,CER,30PF,5%,50V,COG,0805 CAP,CER,36PF GRM40COG360J50VPT CAP,CER,24PF,5%,50V,COG,0805 CAP,CER,9PF,0.5PF,50V,COG,0805 CAP,CER,0.001UF,5%,50V,COG,0805 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,0.1UF,+80-20%,25V,Y5V,0603 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,7PF,.5PF,50V,COG,0603 CAP,CER,0.001UF,10%,50V,X7R,0603 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,27PF,5%,50V,COG,0603 100-803-2105 100-120-2060 100-520-2300 100-520-2360 100-520-2240 100-020-2090 100-520-2102 100-621-1471 100-813-1104 100-621-1471 100-621-1471 100-120-1070 100-621-1102 100-621-1471 100-520-1270 C88 C90 C92 C93 C94 C95 C96 C97 C98 C102 C103 C104 C105 C106 C107 C108 C109 C111 C112 C113 C114 C115 C116 C117 C118 C121 C122 C123 C124 C125 C126 C127 CAP,CER,0.1UF,+80-20%,25V,Y5V,0603 CAP,CER,7PF,.5PF,50V,COG,0603 CAP,CER,18PF,5%,50V,COG,0603 CAP,CER,82PF,5%,COG,50V,0603 CAP,CER,1UF,+80-20%,16V,Y5V,0805 CAP,TA,4.7UF,20%,10V,3216 CAP,CER,0.01UF,5%,50V,X7R,0603 CAP,CER,30PF,5%,50V,COG,0603 CAP,CER,0.001UF,10%,50V,X7R,0603 CAP,CER,0.1UF,10%,25V,X7R,0805 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,0.001UF,10%,50V,X7R,0603 CAP,CER,47PF,5%,50V,COG,0603 CAP,CER,0.01UF,5%,50V,X7R,0603 CAP,CER,10PF,.5%,50V,COG,0603 CAP,CER,.0015UF,GRM39X7R152K50VPT CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,0.1UF,10%,25V,X7R,0805 CAP,CER,0.033UF,10%,16V,X7R,0603 CAP,CER,0.1UF,10%,25V,X7R,0805 CAP,CER,0.01UF,5%,50V,X7R,0603 CAP,CER,220PF,5%,50V,COG,0603 CAP,CER,0.01UF,5%,50V,X7R,0603 CAP,CER,47PF,5%,50V,COG,0603 CAP,CER,33PF,5%,50V,COG,0603 CAP,CER,20PF,5%,50V,COG,0603 CAP,CER,0.001UF,5%,50V,COG,0805 CAP,CER,0.01UF,5%,50V,X7R,0603 CAP,CER,0.1UF,10%,25V,X7R,0805 CAP,CER,0.1UF,10%,25V,X7R,0805 CAP,CER,0.01UF,5%,50V,X7R,0603 CAP,CER,0.01UF,5%,50V,X7R,0603 100-813-1104 100-120-1070 100-520-1180 100-520-1820 100-803-2105 102-023-0475 100-521-1103 100-520-2300 100-621-1102 100-611-2104 100-621-1471 100-621-1102 100-520-1470 100-521-1103 100-120-1100 100-621-1151 100-621-1471 100-611-2104 100-601-1333 100-611-2104 100-521-1103 100-520-1221 100-521-1103 100-520-1470 100-520-1330 100-520-1200 100-520-2102 100-521-1103 100-611-2104 100-611-2104 100-521-1103 100-521-1103 NOTES: 1. Components are not available,assembly is non-repairable. Page -31May 2001 MAXON SP-300 HAND HELD REF # C128 C129 C131 C132 C133 C134 C135 C136 C137 C145 C146 C901 C902 C903 C904 C905 C906 C907 C908 C910 C911 C999 CF1 CF2 CON701 D1 D5 D6 D8 D9 D11 D12 D13 D14 D15 D17 D18 D20 D901 D902 FUSE1 IC1 IC2 IC3 IC5 IC6 L1 L3 L4 L5 L6 L7 L8 L11 L13 L14 L15 L16 DESCRIPTION CAP,TA,10UF,20%,16V,3216 CAP,ELE,10UF,16V20%3X5 5.0PT CAP,CER,0.01UF,5%,50V,X7R,0603 CAP,TA,4.7UF,20V,3528:293D475X0020B2T20V CAP,TA,1.0UF,20%,16V,3216 CAP, CER,.047UF,0603, CAP, TA,10UF, 293D106X0004A2T4V CAP, TA, 100UF, 20%, 6.3V, D CAP, CER,470PF,10%,50V,X7R,0603 CAP, CER,470PF,10%,50V,X7R,0603 CAP, CER,220PF,5%,50V,COG,0603 CAP, CER, 0.01UF,5%,50V,X7R,0603 CAP, CER, 0.01UF,5%,50V,X7R,0603 CAP, CER, 0.01UF,5%,50V,X7R,0603 CAP, CER, 0.01UF,5%,50V,X7R,0603 CAP, CER,18PF,5%,50V,COG,0603 CAP, CER,18PF,5%,50V,COG,0603 CAP, CER, 0.1UF,5%,25V,X7R,0603 CAP,CER,33PF,5%,50V,COG,0603 CAP, CER, 0.01UF,5%,50V,X7R,0603 CAP, CER, 0.01UF,5%,50V,X7R,0603 CAP,CER,20PF,5%,50V,COG,0603 FILTER CERAMIC LT-455FW FILTER, CER,CF455HT,455KHZ CONNECTOR SOCKET,SSW-106-02-G-D-RA DIODE,SW,KDS181S,SOT-23 DIODE,PIN,UPP9401,NEEDPKG SIZE DIODE,PIN,UPP9401,NEEDPKG SIZE DIODE,SW,KDS193,SOT-23 DIODEVARICAPCHIP ND433G 5V (SOP-08) DIODE,SW,KDS193,SOT-23 DIODE,SW,KDS193,SOT-23 DIODE,SW,KDS181S,SOT-23 DIODE,SW,KDS181S,SOT-23 DIODE, CHIP,SM4004,400V,1A,SMD DIODE,SCHOTTKY,CHIP,PRLL5817,SOD87 DIODE,KDS160 DIODE,KDS160 DIODE,SW,KDS226,SOT-23 DIODE,SW,KDS226,SOT-23 FUSE,60V,4A,25NM-040-L IC,VREG,TK11450M,+5V,SOT-23L,(R5) IC,PLL,MC145193FR2,SO-20,RS-440 IC,OPAMP,LM358M,SO-8,DUALOPAMP IC,VHFRCVR,MC3371D,SO-16,NWRBAND IC,AUDIOAMP,LM386M-1,0.33W,SO-8 COIL,CHIP,47NH,20%,LL2012-F47NM COIL,1.2UH:NL252018T-1R2J COIL,0.1UH:NL252018T-R10J COIL,0.1UH:NL252018T-R10J COIL,CHIP, 1.0UH:NL252018T-1R0J COILSPRING 3X0.55X4T:LSMD COILSPRING 3X0.55X4T:LSMD COILSPRING 3X0.55X4T:LSMD COILSPRING 2.8X0.4X8T:L COILCHIP,0.68UH:NL252018T-R68J COILCHIP,0.15UH:NL252018T-R15J COIL,CHIP, 1000U,300SS-102K=CP3 PART # 102-023-1106 081-032-3106 100-521-1103 102-043-1475 102-033-0105 100-813-1473 102-003-0106 102-013-3107 100-621-1471 100-621-1471 100-520-1221 100-521-1103 100-521-1103 100-521-1103 100-521-1103 100-520-1180 100-520-1180 100-813-1104 100-520-1330 100-521-1103 100-521-1103 100-520-1200 310-101-0010 310-101-0013 140-020-0054 220-010-0004 220-020-0001 220-020-0001 220-010-0003 220-040-0009 220-010-0003 220-010-0003 220-010-0004 220-010-0004 220-030-0003 220-040-0008 220-010-0017 220-010-0017 220-010-0005 220-010-0005 700-020-0002 441-010-0002 440-050-0011 441-030-0006 441-060-0007 441-040-0002 371-010-5470 371-004-31R2 371-804-3R10 371-804-3R10 371-017-3102 350-000-0104 350-000-0104 350-000-0104 350-000-0106 371-313-3681 371-004-3R15 370-013-4102 REF # L17 L18 L19 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q11 Q12 Q13 Q14 Q16 Q17 Q18 Q19 Q21 Q22 Q23 Q24 Q25 Q26 Q27 Q28 Q31 Q32 Q33 Q34 Q901 Q902 Q903 Q904 Q905 R1 R2 R3 R4 R5 R6 R7 R8 R11 R12 R13 R14 R15 R16 R17 R21 R22 R23 R24 R25 R26 R27 R28 R35 Page -32May 2001 DESCRIPTION COIL,CHIP, 1000U,300SS-102K=CP3 COIL,CHIP, 1.0UH:NL252018T-1R0J COILCHIP,10UH:LER015T100K TRANS,BRT,PNP,KRA102SPB,SOT-23,SW,(PB) TRANS,BRT,PNP,KRA110SPK,SOT-23,SW,PK TRANS,BRT,PNP,KRA110SPK,SOT-23,SW,PK TRANS,BRT,PNP,KRA110SPK,SOT-23,SW,PK TRANS,KRA104S,SOT-23 TRANS,NPN,KTC3875(BL),SOT-23,SW,(ALL) TRANS,PNP,KTA1504(Y),SOT-23,SW TRANS,PNP,KTA1504(Y),SOT-23,SW TRANS,NPN,KTC3875(BL),SOT-23,SW,(ALL) TRANS,NPN,BFR92A,SOT-23,RFAMP,(P2P) TRANS,NPN,KTC3875(BL),SOT-23,SW,(ALL) TRANS,NPN,KTC3875(BL),SOT-23,SW,(ALL) TRANS,900MHZ AMP,MMB1321Q4LT1,SOT-23 TRANS,900MHZ AMP,MMB1321Q4LT1,SOT-23 TRANS,BRT,NPN,KRC104S,SOT-23,SW,ND TRANS,NPN,KTC3875(BL),SOT-23,SW,(ALL) TRANS,NPN,KTC3875(BL),SOT-23,SW,(ALL) TRANS,PNP,KTA1663(Y),SOT-89,HC/SW,(HY) TRANS,BRT,NPN,KRC104S,SOT-23,SW,ND TRANS,BRT,NPN,KRC104S,SOT-23,SW,ND TRANS,NPN,BFR92A,SOT-23,RFAMP,(P2P) TRANS,NPN,KTC3875(BL),SOT-23,SW,(ALL) TRANS,NPN,KTC3875(BL),SOT-23,SW,(ALL) TRANS,BRT,NPN,KRC104S,SOT-23,SW,ND TRANS,BRT,NPN,KRC104S,SOT-23,SW,ND TRANS,BRT,NPN,KRC104S,SOT-23,SW,ND TRANS,PNP,KTA1504(Y),SOT-23,SW TRANS,BRT,NPN,KRC104S,SOT-23,SW,ND TRANS,NPN,KTC4075,UMT3 TRANS,KTA2014,MAX-900K TRANS,NPN,KTC4075,UMT3 TRANS,NPN,KTC4075,UMT3 TRANS,NPN,KTC4075,UMT3 RES,TF,10K,5%,1/16W, +/-200,0603 RES,TF,100K,5%,1/16W,+/-200,0603 RES,TF,2.2K,5%,1/16W,TC250,0603 RES,1.8K,1/16W,5%,T 1608 RES,1.8K,1/16W,5%,T 1608 RES,TF,2K, 1/16W,5%,T 1608 RES,1.8K,1/16W,5%,T 1608 RES,910,1/10W,5%,T 2012 RES,TF,100, 5%,1/16W, +/-200,0603 RES,TF,5.6K,5%,1/16W,T1608 RES,TF,2.7K,5%,1/16W,+/-200,0603 RES,TF,2.7K,5%,1/16W,+/-200,0603 RES,TF,100, 5%,1/16W, +/-200,0603 RES,910,1/10W,5%,T 2012 RES,TF,12K,5%,1/16W, +/-200,0603 RES,TF,100, 5%,1/16W, +/-200,0603 RES,TF,4.7K,5%,1/16W,+/-200,0603 RES,120 1/16W5%T 1608 RES,5.6K,1/16W,5%,T 1608 RES,TF,3.3K,5%,1/16W,+/-200,0603 RES,TF,18,1/16W, 5%,T 1608 RES,TF,4.7K,5%,1/16W,+/-200,0603 RES,56,1/16W, 5%,T 1608 RES,8.2K,1/16W,5%,T 1608 PART # 370-013-4102 371-017-3102 371-005-3103 870-010-0007 870-010-0010 870-010-0010 870-010-0010 870-010-0005 870-200-0006 870-100-0004 870-100-0004 870-200-0006 870-200-0020 870-200-0006 870-200-0006 870-200-0008 870-200-0008 870-020-0001 870-200-0006 870-200-0006 870-150-0002 870-020-0001 870-020-0001 870-200-0020 870-200-0006 870-200-0006 870-020-0001 870-020-0001 870-020-0001 870-100-0004 870-020-0001 870-200-0031 870-100-0018 870-200-0031 870-200-0031 870-200-0031 741-102-1103 741-102-1104 741-102-1222 741-102-1182 741-102-1182 741-102-1202 741-102-1182 741-117-2911 741-102-1101 741-102-1562 741-102-1272 741-102-1272 741-102-1101 741-117-2911 741-102-1123 741-102-1101 741-102-1472 741-102-1121 741-102-1562 741-102-1332 741-102-1180 741-102-1472 741-102-1560 741-102-1822 MAXON SP-300 HAND HELD REF # R31 R32 R33 R34 R36 R37 R41 R42 R43 R45 R46 R47 R48 R49 R50 R51 R52 R53 R54 R55 R56 R57 R58 R59 R61 R62 R63 R64 R65 R66 R67 R68 R69 R70 R71 R72 R74 R75 R76 R77 R78 R79 R81 R82 R83 R84 R85 R86 R87 R88 R89 R91 R92 R93 R94 DESCRIPTION RES,TF,300,1/16W,5%,T 1608 RES,TF,300,1/16W,5%,T 1608 RES,TF,3.3K,5%,1/16W,+/-200,0603 RES,TF,18,1/16W, 5%,T 1608 RES,TF, 0,5%,1/16W, +/-200,0603 RES,TF,3.3K,5%,1/16W,+/-200,0603 RES,TF,100, 5%,1/16W, +/-200,0603 RES,TF,12K,5%,1/16W, +/-200,0603 RES,TF,10K,5%,1/16W, +/-200,0603 RES,TF,12K,5%,1/16W, +/-200,0603 RES,2.2K,1/16W5%T 1608 RES,TF,2.2,5%,1/10W,TC250,0805 RES,TF,2.2,5%,1/10W,TC250,0805 RES,TF,22,1/16W,5%,T 1608 RES,TF,1M,5%,1/16W,+/-200,0603 RES,TF,2.2,5%,1/10W,TC250,0805 RES,TF,3.3K,5%,1/16W,+/-200,0603 RES,TF,10K,5%,1/16W, +/-200,0603 RES,TF,1K,5%,1/16W,+/-200,0603 RES,TF,1.5K,5%,1/16W,+/-200,0603 RES,270 1/16W5%T 1608 RES,TF,100K,5%,1/16W,+/-200,0603 RES,TF,470K,5%,1/16W,TC1608,0603 RES,TF,39,5%,50V,0603 RES,68K 1/16W1%T1608 RES,68K 1/16W1%T1608 RES,TF,150,5%,1/16W,+/-200,0603 RES,TF,22,1/16W,5%,T 1608 RES,51,1/16W, 5%,T 1608 RES,TF,100, 5%,1/16W, +/-200,0603 RES,TF,22K,5%,1/16W, +/-200,0603 RES,TF,22K,5%,1/16W, +/-200,0603 RES,TF,470K,5%,1/16W,TC1608,0603 RES,TF,470K,5%,1/16W,TC1608,0603 RES,TF,1K,5%,1/16W,+/-200,0603 RES,TF,220K,5%,1/16W,TC1608,0603 RES,TF,22K,5%,1/16W, +/-200,0603 RES,TF,47K,5%,1/16W, +/-200,0603 RES,TF,22K,5%,1/16W, +/-200,0603 RES,TF,22K,5%,1/16W, +/-200,0603 RES,TF,2.7K,5%,1/16W,+/-200,0603 RES,56,1/16W, 5%,T 1608 RES,TF,2.7K,5%,1/16W,+/-200,0603 RES,TF,10K,5%,1/16W, +/-200,0603 RES,TF,18K,1/16W5%T 1608 RES,TF,18K,1/16W5%T 1608 RES,TF,39K,5%,1/16W,TC250,0603 RES,TF,1K,5%,1/16W,+/-200,0603 RES,TF,330K,5%,1/16W,+/-200,0603 RES,TF,100, 5%,1/16W, +/-200,0603 RES,TF,22,1/16W,5%,T 1608 RES,TF,470,5%,1/16W,TC250,0603 RES,TF,2.7K,5%,1/16W,+/-200,0603 RES,TF, 0,5%,1/16W, +/-200,0603 RES,TF,1K,5%,1/16W,+/-200,0603 PART # 741-102-1301 741-102-1301 741-102-1332 741-102-1180 741-102-1000 741-102-1332 741-102-1101 741-102-1123 741-102-1103 741-102-1123 741-102-1222 741-117-2229 741-117-2229 741-102-1220 741-102-1105 741-117-2229 741-102-1332 741-102-1103 741-102-1102 741-102-1152 741-102-1271 741-102-1104 741-102-1474 741-102-1390 740-211-1683 740-211-1683 741-102-1151 741-102-1220 741-102-1510 741-102-1101 741-102-1223 741-102-1223 741-102-1474 741-102-1474 741-102-1102 741-102-1224 741-102-1223 741-102-1473 741-102-1223 741-102-1223 741-102-1272 741-102-1560 741-102-1272 741-102-1103 741-102-1183 741-102-1183 741-102-1393 741-102-1102 741-102-1334 741-102-1101 741-102-1220 741-102-1471 741-102-1272 741-102-1000 741-102-1102 REF # R95 R96 R97 R98 R99 R102 R103 R104 R105 R106 R108 R109 R110 R111 R112 R113 R114 R115 R116 R117 R121 R122 R123 R125 R130 R135 R901 R902 R903 R904 R905 R906 R907 R908 R909 RC56 RL2 RLK2 RLK3 RLK4 RLK5 RLK7 RLK12 RLK16 RV1 RV2 RV3 RV4 T1 T2 T3 TH1 VR3 X1 XF1 Page -33May 2001 DESCRIPTION RES,TF,82K,5%,1/16W,+/-200,0603 RES,TF,39K,5%,1/16W,TC250,0603 RES,TF,10, 5%,1/16W, +/-200,0603 RES,TF,10K,5%,1/16W, +/-200,0603 RES,TF,100K,5%,1/16W,+/-200,0603 RES,TF,22K,5%,1/16W, +/-200,0603 RES,TF,10K,5%,1/16W, +/-200,0603 RES,TF,10K,5%,1/16W, +/-200,0603 RES,TF,30K,5%,1/16W, +/-200,0603 RES,TF,22K,5%,1/16W, +/-200,0603 RES,TF,56K,1/16W,5%,T 1608,0603 RES,0.1,1W1% 1218 RES,TF,270, 5%,1/16W,+/-200,0603 RES,TF,10K,5%,1/16W, +/-200,0603 RES,TF,22K,5%,1/16W, +/-200,0603 RES,TF,470K,5%,1/16W,TC1608,0603 RES,TF,100K,5%,1/16W,+/-200,0603 RES,TF,22,1/16W,5%,T 1608 RES,TF,22K,5%,1/16W, +/-200,0603 RES,TF,22K,5%,1/16W, +/-200,0603 RES,TF,220K,5%,1/16W,1608 RES,TF,4.7K,5%,1/16W,+/-200,0603 RES,TF, 0,5%,1/16W, +/-200,0603 RES,TF,22,1/16W,5%,T 1608 RES,TF,100, 5%,1/16W, +/-200,0603 RES,TF,4.7M,5%,1/16W,+/-200,0603 RES,TF,2.2K,5%,1/16W,TC250,0603 RES,TF,2.2K,5%,1/16W,TC250,0603 RES,TF,4.7K,5%,1/16W,+/-200,0603 RES,TF,7.5K,5%,1/16W,50V,T1608,0603 RES,27K,1/16W5%T 1608 RES,TF,7.5K,5%,1/16W,50V,T1608,0603 RES,27K,1/16W5%T 1608 RES,TF,10, 5%,1/16W, +/-200,0603 RES,TF,470,5%,1/16W,TC250,0603 RES,TF, 0,5%,1/16W, +/-200,0603 RES,TF, 0,5%,1/16W, +/-200,0603 RES,TF, 0,5%,1/16W, +/-200,0603 RES,TF, 0,5%,1/16W, +/-200,0603 RES,TF, 0,5%,1/16W, +/-200,0603 RES,TF, 0,5%,1/16W, +/-200,0603 RES,TF, 0,5%,1/16W, +/-200,0603 RES,TF, 0,5%,1/16W, +/-200,0603 RES,TF, 0,5%,1/16W, +/-200,0603 RES,SEMIFIXED,10KB RH0651C100103 POT,ROTARY, 1K, 3DIAMM,SMD RES,SEMIFIXED,10KB RH0651C100103 POT,ROTARY, 1K, 3DIAMM,SMD COIL,IFT,SMD,455KHZQUAD TRANSFORMERSCHIP 617PT-1019 TRANSFORMERSCHIP 617PT-1019 THERM,33K,NTCCS32163SH333KC POT,20K,RK097111120KA CRYSTAL,44.645M-3015PM,32P,RX 3RD,HC-45 FILTER,CRYSTAL,KFN1045AA(45.1M) (BMO-U) PART # 741-102-1823 741-102-1393 741-102-1100 741-102-1103 741-102-1104 741-102-1223 741-102-1103 741-102-1103 741-102-1303 741-102-1223 741-102-1563 740-521-0R10 741-102-1271 741-102-1103 741-102-1223 741-102-1474 741-102-1104 741-102-1220 741-102-1223 741-102-1223 741-102-1224 741-102-1472 741-102-1000 741-102-1220 741-102-1101 741-102-1475 741-102-1222 741-102-1222 741-102-1472 741-102-1752 741-102-1273 741-102-1752 741-102-1273 741-102-1100 741-102-1471 741-102-1000 741-102-1000 741-102-1000 741-102-1000 741-102-1000 741-102-1000 741-102-1000 741-102-1000 741-102-1000 901-002-0103 901-001-0102 901-002-0103 901-001-0102 353-012-0001 840-010-0002 840-010-0002 700-050-0002 901-002-0203 168-044-6450 310-030-0015 MAXON SP-300 HAND HELD SP-300 SERIES UHF RF SECTION PARTS LIST REF # DESCRIPTION PART # REPLACEMENT MODULES FRONT ENDASSY, UHF (SEE NOTE 1) 650-110-0013 VCOTX/RX ASSY, UHF (SEE NOTE 1) 650-030-0020 POWERAMPASSY, UHF (SEE NOTE 1) 650-230-0013 COMPONENTS C1 CAP,CER,470PF,10%,50V,X7R,0603 C2 CAP,TA,10UF,293D106X06R3A2T6.3V 100-621-1471 102-013-0106 C3 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 C4 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 C5 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 C6 CAP,TA,4.7UF,20%,10V,3216 102-023-0475 C7 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 C8 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 C9 CAP,CER,0.01UF,10%,50V,X7R,0805 100-621-2103 C11 CAP,CER,0.1UF,+80-20%,25V,Y5V,0603 100-813-1104 C12 CAP,TA,10UF,293D106X06R3A2T6.3V 102-013-0106 C13 CAP,CER,0.01UF,5%,50V,X7R,0603 100-521-1103 C14 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 C15 CAP,CER,0.1UF,+80-20%,25V,Y5V,0603 100-813-1104 C16 CAP,CER,2PF,.25%,50V,COG,0603 100-020-1020 C17 CAP,CER,0.1UF,+80-20%,25V,Y5V,0603 100-813-1104 C18 CAP,CER,0.001UF,10%,50V,X7R,0603 100-621-1102 C19 CAP,CER,220PF,5%,50V,COG,0603 100-520-1221 C20 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 C21 CAP,METAL,POLY,0.33UF,63VBOX 083-013-2334 C22 CAP,METAL,POLY,.022UF,63VBOX 083-013-2223 C23 CAP,MYLAR,.01UF,63VKBOXTYPE 083-014-2103 C24 CAP,MYLAR,.01UF,63VKBOXTYPE 083-014-2103 C25 CAP,CER,1UF,+80-20%,16V,Y5V,0805 100-803-2105 C26 CAP,CER,0.1UF,+80-20%,25V,Y5V,0603 100-813-1104 C34 CAP,CER,220PF,5%,50V,COG,0603 100-520-1221 C35 CAP,CER,220PF,5%,50V,COG,0603 100-520-1221 C36 CAP,CER,7PF,0.5PF,50V,COG,0805 100-110-2070 C37 CAP,CER,5.6PF,.25PF,50V,COG,0603 100-020-15R6 C38 CAP,CER,15PF,5%,50V,COG,0805 100-520-2150 C39 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 C41 CAP,CER,6PF,0.5PF,50V,COG,0805 100-120-2060 C42 CAP,CER,27PF,5%,50V,COG,0805 100-520-2270 C43 CAP,CER,5PF,.25PF,50V,COG,0603 100-020-1050 C44 CAP,TA,4.7UF,20%,10V,3216 102-023-0475 C45 CAP,CER,220PF,5%,50V,COG,0603 100-520-1221 C46 CAP,CER,3PF,.25PF,50V,COG,0603 100-020-1030 C47 CAP,CER,220PF,5%,50V,COG,0603 100-520-1221 C49 CAP,CER,2PF,0.25PF%,50V,COG,0805 100-020-2020 C50 CAP,CER,12PF,5%,50V,COG,0603 100-520-1120 C51 CAP,CER,6PF,.25PF,50V,COG,0603 100-020-1060 C53 CAP,CER,1UF,+80-20%,16V,Y5V,0805 100-803-2105 C54 CAP,CER,220PF,5%,50V,COG,0603 100-520-1221 C55 CAP,CER,470PF,10%,50V,X7R,0603 100-621-1471 C56 CAP,CER,12PF,5%,50V,COG,0603 100-520-1120 REF # C57 C58 C59 C60 C61 C62 C63 C64 C65 C66 C67 C68 C70 C73 C74 C75 C77 C78 C79 C81 C82 C83 C84 C86 C87 C88 C90 C92 C93 C94 C95 C96 C97 C98 C102 C103 C104 C105 C106 C107 C108 C109 C111 C112 C113 C114 C115 C116 C117 C118 C121 C122 C123 C124 C125 C126 NOTES: 1. Components are not available,assembly is non-repairable. Page -34May 2001 DESCRIPTION CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,0.47UF GRM40Y5V474Z16VPT CAP,TA,4.7UF,20%,10V,3216 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,0.01UF,5%,50V,X7R,0603 CAP,CER,470PF,10%,50V,X7R,0603 CAP,TA,10UF,20%,10V,B,3528 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,27PF,5%,50V,COG,0805 CAP,CER,1UF,+80-20%,16V,Y5V,0805 CAP,CER,3PF,0.25PF,50V,COG,0805 CAP,CER,8PF,.25PF%,COG,50V,0805 CAP,CER,4.7PF GRM40COG4R7C50VPT CAP,CER,470PF,10%,50V,X7R,0805 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,0.1UF,10%,25V,X7R,0805 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,12PF,5%,50V,COG,0603 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,22PF,5%,50V,COG,0603 CAP,CER,0.1UF,+80-20%,25V,Y5V,0603 CAP,CER,7PF,.5PF,50V,COG,0603 CAP,CER,30PF,5%,50V,COG,0603 CAP,CER,82PF,5%,COG,50V,0603 CAP,CER,1UF,+80-20%,16V,Y5V,0805 CAP,TA,4.7UF,20%,10V,3216 CAP,CER,0.01UF,5%,50V,X7R,0603 CAP,CER,30PF,5%,50V,COG,0603 CAP,CER,0.001UF,10%,50V,X7R,0603 CAP,CER,0.1UF,10%,25V,X7R,0805 CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,0.001UF,10%,50V,X7R,0603 CAP,CER,47PF,5%,50V,COG,0603 CAP,CER,0.01UF,5%,50V,X7R,0603 CAP,CER,10PF,.5%,50V,COG,0603 CAP,CER,.0015UF,GRM39X7R152K50VPT CAP,CER,470PF,10%,50V,X7R,0603 CAP,CER,0.1UF,10%,25V,X7R,0805 CAP,CER,0.033UF,10%,16V,X7R,0603 CAP,CER,0.1UF,10%,25V,X7R,0805 CAP,CER,0.01UF,5%,50V,X7R,0603 CAP,CER,220PF,5%,50V,COG,0603 CAP,CER,0.01UF,5%,50V,X7R,0603 CAP,CER,47PF,5%,50V,COG,0603 CAP,CER,33PF,5%,50V,COG,0603 CAP,CER,20PF,5%,50V,COG,0603 CAP,CER,0.001UF,10%,50V,X7R,0603 CAP,CER,0.01UF,5%,50V,X7R,0603 CAP,CER,0.1UF,10%,25V,X7R,0805 CAP,CER,0.1UF,10%,25V,X7R,0805 CAP,CER,0.01UF,5%,50V,X7R,0603 PART # 100-621-1471 100-621-1471 100-803-2474 102-023-0475 100-621-1471 100-621-1471 100-521-1103 100-621-1471 102-023-1106 100-621-1471 100-621-1471 100-520-2270 100-803-2105 100-020-2030 100-120-2080 100-120-24R7 100-621-2471 100-621-1471 100-611-2104 100-621-1471 100-621-1471 100-520-1120 100-621-1471 100-621-1471 100-520-1220 100-813-1104 100-120-1070 100-520-1300 100-520-1820 100-803-2105 102-023-0475 100-521-1103 100-520-1300 100-621-1102 100-611-2104 100-621-1471 100-621-1102 100-520-1470 100-521-1103 100-120-1100 100-621-1151 100-621-1471 100-611-2104 100-601-1333 100-611-2104 100-521-1103 100-520-1221 100-521-1103 100-520-1470 100-520-1330 100-520-1200 100-621-1102 100-521-1103 100-611-2104 100-611-2104 100-521-1103 MAXON SP-300 HAND HELD REF # C127 C128 C129 C131 C132 C133 C134 C135 C136 C137 C145 C146 C901 C902 C903 C904 C905 C906 C907 C908 C910 C911 CF1 CF2 D1 D5 D6 D8 D9 D11 D12 D13 D14 D15 D17 D18 D20 D901 D902 IC1 IC2 IC5 L1 L2 L3 L4 L5 L6 L7 L8 L11 L12 L13 L14 DESCRIPTION CAP, CER, 0.01UF,5%,50V,X7R,0603 CAP, TA, 4.7UF,20%,10V,3216 CAP, ELE,10UF,16V 20% 3X5 5.0PT CAP, CER, 0.01UF,5%,50V,X7R,0603 CAP, TA,4.7UF,20V,3528:293D475X0020B2T 20V CAP,TA,1.0UF,20%,16V,3216 CAP, CER,.047UF,0603, CAP, TA,10UF, 293D106X0004A2T4V CAP, TA, 100UF, 20%, 6.3V, D CAP, CER,470PF,10%,50V,X7R,0603 CAP, CER,470PF,10%,50V,X7R,0603 CAP, CER,220PF,5%,50V,COG,0603 CAP, CER, 0.01UF,5%,50V,X7R,0603 CAP, CER, 0.01UF,5%,50V,X7R,0603 CAP, CER, 0.01UF,5%,50V,X7R,0603 CAP, CER, 0.01UF,5%,50V,X7R,0603 CAP, CER,18PF,5%,50V,COG,0603 CAP, CER,18PF,5%,50V,COG,0603 CAP, CER,0.1UF,+80-20%,25V,Y5V,0603 CAP, CER,33PF,5%,50V,COG,0603 CAP, CER, 0.01UF,5%,50V,X7R,0603 CAP, CER, 0.01UF,5%,50V,X7R,0603 FILTER, CER,CFW455F,455KHZ FILTER, CER,CFW455HT,455KHZ DIODE,SW,KDS181S,SOT-23 DIODE,PIN,UPP9401,NEEDPKG SIZE DIODE,PIN,UPP9401,NEEDPKG SIZE DIODE,SW,KDS193,SOT-23 DIODE,SCHOTTKY,CHIP,HSMS-2817#L31 DIODE,SW,KDS193,SOT-23 DIODE,SW,KDS193,SOT-23 DIODE,SW,KDS181S,SOT-23 DIODE,SW,KDS181S,SOT-23 DIODE, CHIP,SM4004,400V,1A,SMD DIODE,SCHOTTKY,CHIP,PRLL5817,SOD87 DIODE,KDS160 DIODE,KDS160 DIODE,SW,KDS226,SOT-23 DIODE,SW,KDS226,SOT-23 IC,VREG,TK11450M,+5V,SOT-23L,(R5) IC,PLL,MC145191FR2,SO-20,RS-440 IC,VHFRCVR,MC3371D,SO-16,NWRBAND COIL,CHIP,18NH,20%,LL2012-F18NM COIL,CHIP,18NH,20%,LL2012-F18NM COIL,0.1UH:NL252018T-R10J COIL,CHIP,18NH,20%,LL2012-F18NM COIL,CHIP,18NH,20%,LL2012-F18NM COILCHIP,0.82UH:NL252018T-R82J COILSPRING, 2X0.75X3T:LSMD COILSPRING, 2X0.75X3T:LSMD COILSPRING, 2X0.75X3T:LSMD COIL,1.2UH:NL252018T-1R2J COILSPRING, 2X0.75X3T:LSMD COILCHIP,0.47UH:NL252018T-R47J PART # 100-521-1103 102-023-0475 081-032-3106 100-521-1103 102-043-1475 102-033-0105 100-813-1473 102-003-0106 102-013-3107 100-621-1471 100-621-1471 100-520-1221 100-521-1103 100-521-1103 100-521-1103 100-521-1103 100-520-1180 100-520-1180 100-813-1104 100-520-1330 100-521-1103 100-521-1103 310-010-0010 310-101-0009 220-010-0004 220-020-0001 220-020-0001 220-010-0003 220-040-0009 220-010-0003 220-010-0003 220-010-0004 220-010-0004 220-030-0003 220-040-0008 220-010-0017 220-010-0017 220-010-0005 220-010-0005 441-010-0002 440-050-0011 441-060-0007 371-010-5180 371-010-5180 371-804-3R10 371-010-5180 371-010-5180 371-804-3R82 350-000-0103 350-000-0103 350-000-0103 371-004-31R2 350-000-0103 371-804-3R47 REF # L15 L16 L17 L18 L19 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q11 Q12 Q13 Q14 Q16 Q17 Q18 Q19 Q21 Q22 Q23 Q24 Q25 Q26 Q27 Q28 Q31 Q32 Q33 Q34 Q901 Q902 Q903 Q904 Q905 R1 R2 R3 R4 R5 R6 R7 R8 R11 R12 R13 R14 R15 R16 R17 R18 R21 R22 R23 R24 Page -35May 2001 DESCRIPTION COILCHIP,0.15UH:NL252018T-R15J COIL,CHIP, 1000U,300SS-102K=CP3 COIL,CHIP, 1000U,300SS-102K=CP3 COIL,CHIP, 1.0UH:NL252018T-1R0J COILCHIP,10UH:LER015T100K TRANS,BRT,PNP,KRA102SPB,SOT-23,SW,(PB) TRANS,BRT,PNP,KRA110SPK,SOT-23,SW,PK TRANS,BRT,PNP,KRA110SPK,SOT-23,SW,PK TRANS,BRT,PNP,KRA110SPK,SOT-23,SW,PK TRANS,KRA104S,SOT-23 TRANS,NPN,KTC3875(BL),SOT-23,SW,(ALL) TRANS,PNP,KTA1504(Y),SOT-23,SW TRANS,PNP,KTA1504(Y),SOT-23,SW TRANS,NPN,KTC3875(BL),SOT-23,SW,(ALL) TRANS,NPN,BFR92A,SOT-23,RFAMP,(P2P) TRANS,NPN,KTC3875(BL),SOT-23,SW,(ALL) TRANS,NPN,KTC3875(BL),SOT-23,SW,(ALL) TRANS,NPN,BFR92A,SOT-23,RFAMP,(P2P) TRANS,900MHZ AMP,MMBR951,SOT-23 TRANS,BRT,NPN,KRC104S,SOT-23,SW,ND TRANS,NPN,KTC3875(BL),SOT-23,SW,(ALL) TRANS,NPN,KTC3875(BL),SOT-23,SW,(ALL) TRANS,PNP,KTA1663(Y),SOT-89,HC/SW,(HY) TRANS,BRT,NPN,KRC104S,SOT-23,SW,ND TRANS,BRT,NPN,KRC104S,SOT-23,SW,ND TRANS,NPN,BFR92A,SOT-23,RFAMP,(P2P) TRANS,NPN,KTC3875(BL),SOT-23,SW,(ALL) TRANS,NPN,KTC3875(BL),SOT-23,SW,(ALL) TRANS,BRT,NPN,KRC104S,SOT-23,SW,ND TRANS,BRT,NPN,KRC104S,SOT-23,SW,ND TRANS,BRT,NPN,KRC104S,SOT-23,SW,ND TRANS,PNP,KTA1504(Y),SOT-23,SW TRANS,BRT,NPN,KRC104S,SOT-23,SW,ND TRANS,NPN,KTC4075,UMT3 TRANS,KTA2014,MAX-900K TRANS,NPN,KTC4075,UMT3 TRANS,NPN,KTC4075,UMT3 TRANS,NPN,KTC4075,UMT3 RES,TF,10K,5%,1/16W, +/-200,0603 RES,TF,100K,5%,1/16W,+/-200,0603 RES,TF,2.2K,5%,1/16W,TC250,0603 RES,1.8K,1/16W,5%,T 1608 RES,1.8K,1/16W,5%,T 1608 RES,TF,2K, 1/16W,5%,T 1608 RES,1.8K,1/16W,5%,T 1608 RES,910,1/10W,5%,T 2012 RES,TF,100,5%,1/16W,TC250,0603 RES,5.6K,1/16W,5%,T 1608 RES,TF,2.7K,5%,1/16W,+/-200,0603 RES,TF,2.7K,5%,1/16W,+/-200,0603 RES,TF,100,5%,1/16W,TC250,0603 RES,910,1/10W,5%,T 2012 RES,TF,12K,5%,1/16W, +/-200,0603 RES,TF,10K,5%,1/16W, +/-200,0603 RES,33,1/16W5%T 1608 RES,TF,4.7K,5%,1/16W,TC250,0603 RES,TF,100,5%,1/16W,TC250,0603 RES,5.6K,1/16W,5%,T 1608 PART # 371-004-3R15 370-013-4102 370-013-4102 371-017-3102 371-005-3103 870-010-0007 870-010-0010 870-010-0010 870-010-0010 870-010-0005 870-200-0006 870-100-0004 870-100-0004 870-200-0006 870-200-0020 870-200-0006 870-200-0006 870-200-0020 870-200-0026 870-020-0001 870-200-0006 870-200-0006 870-150-0002 870-020-0001 870-020-0001 870-200-0020 870-200-0006 870-200-0006 870-020-0001 870-020-0001 870-020-0001 870-100-0004 870-020-0001 870-200-0031 870-100-0018 870-200-0031 870-200-0031 870-200-0031 741-102-1103 741-102-1104 741-102-1222 741-102-1182 741-102-1182 741-102-1202 741-102-1182 741-117-2911 741-107-1101 741-102-1562 741-102-1272 741-102-1272 741-107-1101 741-117-2911 741-102-1123 741-102-1103 741-102-1330 741-107-1472 741-107-1101 741-102-1562 MAXON SP-300 HAND HELD REF # R25 R26 R27 R28 R31 R32 R33 R34 R35 R37 R41 R42 R43 R45 R47 R48 R50 R51 R52 R53 R54 R55 R56 R57 R58 R59 R61 R62 R63 R64 R65 R66 R67 R68 R69 R70 R71 R72 R74 R75 R76 R77 R78 R79 R81 R82 R83 R84 R85 R86 R87 R88 R89 R91 R92 DESCRIPTION RES,TF,4.7K,5%,1/16W,TC250,0603 RES,TF,18,1/16W, 5%,T 1608 RES,TF,4.7K,5%,1/16W,TC250,0603 RES,TF,220,1/16W,5%,T 1608 RES,TF,300,1/16W,5%,T 1608 RES,TF,300,1/16W,5%,T 1608 RES,TF,6.8K,5%,1/16W,+/-200,0603 RES,TF,18,1/16W, 5%,T 1608 RES,5.6K,1/16W,5%,T 1608 RES,1.2K 1/16W5%T1608 RES,TF,22,1/16W,5%,T 1608 RES,TF,12K,5%,1/16W, +/-200,0603 RES,TF,10K,5%,1/16W, +/-200,0603 RES,TF,22K,5%,1/16W,TC250,0603 RES,TF,2.2,5%,1/10W,TC250,0805 RES,TF,2.2,5%,1/10W,TC250,0805 RES,TF,1M,5%,1/16W,+/-200,0603 RES,TF,2.2,5%,1/10W,TC250,0805 RES,TF,3.3K,5%,1/16W,TC250,0603 RES,TF,10K,5%,1/16W, +/-200,0603 RES,TF,1K,5%,1/16W,+/-200,0603 RES,1.2K 1/16W5%T1608 RES,270 1/16W5%T 1608 RES,100K 1/16W1%T 1608 RES,TF,470K,5%,1/16W,TC250,0603 RES,TF,39,5%,50V,0603 RES,68K 1/16W1%T1608 RES,68K 1/16W1%T1608 RES,150,1/16W,5%,T 1608 RES,TF,22,1/16W,5%,T 1608 RES,51,1/16W, 5%,T 1608 RES,TF,100,5%,1/16W,TC250,0603 RES,TF,22K,5%,1/16W,TC250,0603 RES,TF,22K,5%,1/16W,TC250,0603 RES,TF,470K,5%,1/16W,TC250,0603 RES,TF,470K,5%,1/16W,TC250,0603 RES,TF,1K,5%,1/16W,+/-200,0603 RES,TF,220K,5%,1/16W,TC250,0603 RES,TF,22K,5%,1/10W,TC250,0805 RES,TF,47K,5%,1/16W,TC250,0603 RES,TF,22K,5%,1/16W,TC250,0603 RES,TF,22K,5%,1/16W,TC250,0603 RES,TF,2.7K,5%,1/16W,+/-200,0603 RES,TF,10,5%,1/16W,+/-200,0603 RES,TF,2.7K,5%,1/16W,+/-200,0603 RES,TF,10K,5%,1/16W, +/-200,0603 RES,TF,18K,1/16W5%T 1608 RES,TF,18K,1/16W5%T 1608 RES,TF,39K,5%,1/16W,TC250,0603 RES,TF,1K,5%,1/16W,+/-200,0603 RES,TF,330K,5%,1/16W,+/-200,0603 RES,TF,100,5%,1/16W,TC250,0603 RES,TF,22,1/16W,5%,T 1608 RES,TF,470,5%,1/16W,TC250,0603 RES,TF,2.7K,5%,1/16W,+/-200,0603 PART # 741-107-1472 741-102-1180 741-107-1472 741-102-1221 741-102-1301 741-102-1301 741-102-1682 741-102-1180 741-102-1562 741-102-1122 741-102-1220 741-102-1123 741-102-1103 741-107-1223 741-117-2229 741-117-2229 741-102-1105 741-117-2229 741-107-1332 741-102-1103 741-102-1102 741-102-1122 741-102-1271 740-211-1003 741-107-1474 741-102-1390 740-211-1683 740-211-1683 741-102-1151 741-102-1220 741-102-1510 741-107-1101 741-107-1223 741-107-1223 741-107-1474 741-107-1474 741-102-1102 741-107-1224 741-117-2223 741-107-1473 741-107-1223 741-107-1223 741-102-1272 741-102-1100 741-102-1272 741-102-1103 741-102-1183 741-102-1183 741-107-1393 741-102-1102 741-102-1334 741-107-1101 741-102-1220 741-107-1471 741-102-1272 REF # DESCRIPTION PART # R93 RES,TF,100,5%,1/16W,TC250,0603 R94 RES,TF,1K,5%,1/16W,+/-200,0603 741-102-1102 R95 RES,TF,82K,5%,1/16W,TC250,0603 741-107-1823 R96 RES,TF,39K,5%,1/16W,TC250,0603 741-107-1393 R97 RES,TF,10,5%,1/16W,+/-200,0603 741-102-1100 R98 RES,TF,10K,5%,1/16W, +/-200,0603 741-102-1103 R99 RES,100K 1/16W1%T 1608 740-211-1003 R102 RES,TF,22K,5%,1/16W,TC250,0603 741-107-1223 R103 RES,TF,10K,5%,1/16W, +/-200,0603 741-102-1103 R104 RES,TF,10K,5%,1/16W, +/-200,0603 741-102-1103 R105 RES,TF,22K,5%,1/16W,TC250,0603 741-107-1223 R106 RES,TF,22K,5%,1/16W,TC250,0603 741-107-1223 R108 RES,TF,56K,1/16W,5%,T 1608,0603 741-102-1563 R109 RES,0.1 R110 RES,270 1/16W5%T 1608 R111 RES,TF,10K,5%,1/16W, +/-200,0603 741-102-1103 R112 RES,TF,22K,5%,1/16W,TC250,0603 741-107-1223 R113 RES,TF,470K,5%,1/16W,TC250,0603 741-107-1474 R114 RES,TF,100K,5%,1/16W,+/-200,0603 741-102-1104 R115 RES,TF,47,5%,1/16W,50V,T1608,0603 741-102-1470 R116 RES,TF,22K,5%,1/16W,TC250,0603 741-107-1223 R117 RES,TF,22K,5%,1/16W,TC250,0603 741-107-1223 R121 RES,TF,220K,5%,1/16W,TC250,0603 741-107-1224 R122 RES,TF,4.7K,5%,1/16W,TC250,0603 741-107-1472 R125 RES,TF,22,1/16W,5%,T 1608 741-102-1220 R126 RES,TF,10K,5%,1/16W, +/-200,0603 741-102-1103 R128 RES,TF,10K,5%,1/16W, +/-200,0603 741-102-1103 R130 RES,TF,100,5%,1/16W,TC250,0603 741-107-1101 R132 RES,5.6K,1/16W,5%,T 1608 741-102-1562 R901 RES,TF,2.2K,5%,1/16W,TC250,0603 741-102-1222 R902 RES,TF,2.2K,5%,1/16W,TC250,0603 741-102-1222 R903 RES,TF,4.7K,5%,1/16W,TC250,0603 741-107-1472 R904 RES,TF,7.5K,5%,1/16W,50V,T1608,0603 741-102-1752 R905 RES,TF,27K,5%,1/16W,TC250,0603 741-107-1273 R906 RES,TF,7.5K,5%,1/16W,50V,T1608,0603 741-102-1752 R907 RES,TF,27K,5%,1/16W,TC250,0603 741-107-1273 R908 RES,TF,10,5%,1/16W,+/-200,0603 741-102-1100 R909 RES,TF,470,5%,1/16W,TC250,0603 741-107-1471 RLK2 RES,TF,0,5%,1/16W,TC250,0603 741-107-1000 RLK3 RES,TF,0,5%,1/16W,TC250,0603 741-107-1000 RLK4 RES,TF,0,5%,1/16W,TC250,0603 741-107-1000 RLK5 RES,TF,0,5%,1/16W,TC250,0603 741-107-1000 RLK7 RES,TF,0,5%,1/16W,TC250,0603 741-107-1000 RLK12 RES,TF,0,5%,1/16W,TC250,0603 741-107-1000 RLK16 RES,TF,0,5%,1/16W,TC250,0603 741-107-1000 RLK36 RES,TF,0,5%,1/16W,TC250,0603 741-107-1000 RLK49 RES,TF,0,5%,1/16W,TC250,0603 741-107-1000 RLK123 RES,TF,0,5%,1/16W,TC250,0603 741-107-1000 RLK488 RES,TF,0,5%,1/16W,TC250,0603 741-107-1000 RV1 RES,SEMIFIXED,10KB RH0651C100103 901-002-0103 RV2 POT,ROTARY, 1K, 3DIAMM,SMD 901-001-0102 RV3 RES,SEMIFIXED,10KB RH0651C100103 901-002-0103 RV4 POT,ROTARY, 1K, 3DIAMM,SMD 901-001-0102 RV5 T1 T2 T3 RES,SEMIFIXED,10KB RH0651C100103 COIL,IFT,SMD,455KHZQUAD TRANSFORMERSCHIP 617PT-1019 TRANSFORMERSCHIP 617PT-1019 901-002-0103 353-012-0001 840-010-0002 840-010-0002 Page -36May 2001 1W1% 1218 741-107-1101 740-521-0R10 741-102-1271 MAXON SP-300 HAND HELD REF# TCXO TH1 U3 U6 U8 VR3 X1 XF1 DESCRIPTION TCXO, KXN1343A,12.8M,2.0PPM THERM,33K,NTCCS32163SH333KC IC, OP AMP,LM358M,SO-8,DUAL OP AMP IC, AUDIO AMP,LM386M-1,0.33W,SO-8 IC, OP AMP,LM358M,SO-8,DUAL OP AMP POT, 20K,RK0971111 20KA CRYSTAL, 44.645M -30 15PM,32P,RX 3RD,HC-45 FILTER, CRYSTAL,KFN1045AA(45.1M) (BMO-U) PART# 150-000-0003 700-050-0002 441-030-0006 441-040-0002 441-030-0006 901-002-0203 168-044-6450 310-030-0015 Page -37May 2001 MAXON SP-300 HAND HELD COMPONENT PINOUT BASE DIAGRAM MANUFACTURER'S PART NUMBER REFERENCE NO. 2SC5084 Q202,203,302,303,601 MMBR951 Q16,17,501,601 SCHEMATIC C B BFR92A Q12,16,25 KTC3875S (BL) Q6,11,13,14,21,26,27 E C C KTA1504SY B Q7,8,33 B E E KRC104S (ND) Q18,23,24,28,31,32,34,403, Q404,405,411,413 KRA104S (PD) Q5,410,412 KRA101S (PA) Q406,407 KRA110S (NK) Q2,3,4,401,416 C B B B 47K 47K E C 47K E C 47K 4.7K E C KRA102S (PB) Q1 B 10K 10K 3 1 MMBZ5232B D405, 406, 407 KDS181 (A3) D1,13,14,401,402,501 KDS193 (F3) D8,11,12,403 KDS226 (C3) D601,901,902 KDS184 (B3) D404 UPP9401 D5,6 2 1 2 3 Page -38May 2001 E MAXON SP-300 HAND HELD MANUFACTURER'S PART NUMBER BASE DIAGRAM REFERENCE NO. 5 8 1 ND433G 4 D9 SCHEMATIC 5 6 4 3 7 8 2 1 C 1.BASE 2 1 2.COLLECTOR 3 4 43 2 3 Q22 B 3.EMITTER E 1.EMITTER C 2.BASE 1 KTA1663 BLT50 3.EMITTER Q502 B E 4.COLLECTOR 21 1,4,5,8:EMITTER 56 7 8 2,3:BASE BLT52 Q503 1SV229 D201,202,301 SM4004 D15 HD4074818 IC409 6,7:COLLECTOR A K 41 40 60 21 20 61 80 1 Page -39May 2001 CPU IC MAXON SP-300 HAND HELD BASE DIAGRAM PIN DESCRIPTION No Description RF Power Amp 5 2 3 7 6 1 Input 2 GND 3 Vcc (Pre Drive) 4 Vcc Control (Drive) 5 Vcc (Final) 6 Output 7 GND 1 Input 2 GND 4 B +(4V) 5 GND 6 Output 1 Gnd 9 Gnd 17 Gnd 2 RX Out 10 Gnd 18 Gnd 3 Gnd 11 Gnd 4 RX Vcc 12 Gnd 5 Gnd 13 TX Mod 6 TX Out 14 Gnd 7 Gnd 15 Tuning 8 TX Vcc 16 Gnd 4 1 (VHF) P.A. Assy. P/N: 650-230-0012 (UHF) P.A. Assy. P/N: 650-230-0013 RX Front-End GND GND 1 2 GND 4 5 6 (VHF) Front-End Assy. P/N: 650-110-0012 (UHF) Front-End Assy. P/N: 650-110-0013 RX/TX VCO 8 6 7 5 3 4 2 1 R309 9 10 11 13 12 14 TOP SIDE 15 16 17 18 (VHF) V.C.O. Assy. P/N: 650-030-0021 (UHF) V.C.O. Assy. P/N: 650-030-0020 12.8 MHz TCXO 1 4 2 3 (VHF ONLY) TCXO Assy. P/N: 650-100-0002 Page -40May 2001 1 Modulation 2 GND 3 Out 4 Vcc (5V) 4 SCHEMATICS & BLOCK DIAGRAM 3 4 C605 0.001 6 C608 33pF C621 33P OUT C603 56pF L601 6T L602 6T C602 39pF R601 56K R602 6.8K R601 180 C601 680pF C604 100pF RX 5V C606 120pF R603 820 Q601 MMBR951 L603 6T C607 39pF R604 2.2 C611 100pF C612 47pF R605 3.3K C613 39pF L604 6T D601 KDS226 C616 9pF L605 6T C615 N/F C614 120pF L606 6T C617 47P L607 6T C615 7P C613 5.6P L604 4T C608 24P C610 33P R602 100 L606 4T 5 GND C623 39pF C623 22P L607 4T C620 N/F C614 3.3P C617 4P C605 7P C603 9P C602 11P 1 C609 18P D601 KDS226 C612 470P C624 4P C606 9P IN Q601 2SC5084 C622 18P 1 C618 N/F C616 6P C618 7P 6 C622 0.01uF C621 100pF C619 6P L603 4T C607 16P C604 20P L602 4T L605 4T GND L601 4T C601 10P 2 2 5 Notes: 1. 2. ALL VALUES ARE IN OHMS, MICROHENRIES OR MICROFARADS UNLESS OTHERWISE SPECIFIED. C509 12P Q501 MMBR951 C501 3P C502 39P 1 L502 27NH C504 18P L501 56NH C503 0.01 C505 39P R503 200 C508 47P N/F C506 R510 0 8T L509 Q503 BLT52 C507 L507 L508 4T 5T C501 22P C515 0.01 C517 R507 82 Q501 MMBR951 1 C513 C514 82P 24P L501 C504 4T 7P 1. ALL VALUES ARE IN OHMS, MICROHENRIES OR MICROFARADS UNLESS OTHERWISE SPECIFIED. 2. ALL RESISTORS ARE 1/10W 5% UNLESS OTHERWISE SPECIFIED. C515 43P 6 R506 22 L503 7T C507 C500 220P 22P C508 11P L505 7T C509 N/F C503 C506 C512 220P 220P 220P 2 D501 KDS181 7 3 C513 C514 4P 15P L506 N/F 7 R504 2.2K C511 0.001 R503 6.8 R506 22 4 Q503 BLT52 C505 20P L502 1.2UH R502 8.2K 0.01 R505 33 L504 1.2UH Q502 BLT50 C502 8P 22P C512 0.01 Notes: (440-470MHz Band Shown) Schematic P/N: 770-110-0013 Rev. D PCB Assy. P/N: 650-110-0013 Rev. D ALL RESISTORS ARE 1/10W 5% UNLESS OTHERWISE SPECIFIED. 6 R508 82 2 3 UHF FRONT-END ALL VALUES ARE IN OHMS, MICROHENRIES OR MICROFARADS UNLESS OTHERWISE SPECIFIED. R501 2.7K L505 4T R509 56 L504 8T 2. R505 33 L506 2.2uH Q502 BLT50 L503 150NH R502 8.2K 1. (148-174MHz Band Shown) Schematic P/N: 770-110-0012 Rev. C PCB Assy. P/N: 650-110-0012 Rev C ALL RESISTORS ARE 1/10W 5% UNLESS OTHERWISE SPECIFIED. R501 2.7K Notes: VHF FRONT-END 4 5 5 Notes: VHF POWER AMP (148-174MHz Band Shown) Schematic P/N: 770-230-0012 Rev. A PCB Assy. P/N: 650-230-0012 Rev. A 1. ALL VALUES ARE IN OHMS, MICROHENRIES OR MICROFARADS UNLESS OTHERWISE SPECIFIED. 2. ALL RESISTORS ARE 1/10W 5% UNLESS OTHERWISE SPECIFIED. UHF POWER AMP (440-470MHz Band Shown) Schematic P/N: 770-230-0013 Rev. B PCB Assy. P/N: 650-230-0013 Rev. B zNote: Schematics are for reference only. Based on band selection, reference designators and part values may differ from schematics shown. PAGE -41May 2001 9 7 9 VCC 12 VCO TX 10 C212 0.001 L205 180nH R205 2.2K 8 R206 100 R202 100K MOD 13 C203 1.2P D201 1SV217 14 L201 100nH L203 4.5t R201 100K R203 4.7K C215 0.001 C201 470P VCC L305 100nH R305 2.2K C312 0.001 TUNING R304 2.2K R306 100 C308 2.2P C302 11P D301 1SV217 L303 4.5T C315 0.001 C206 5P C204 1.5P L202 470nH L204 820NH C211 7P R203 4.7K R207 270 5 TUNING R304 2.2K C308 4P C302 13P C317 4P Q303 2SC5084 (MCO) C313 3P C314 10P D301 1SV229 (T8) R303 4.7K C306 9P L303 1.2t R309 OR 2. ALL RESISTORS ARE 1/10W 5% UNLESS OTHERWISE SPECIFIED. C311 7P R307 270 1 18 ALL VALUES ARE IN OHMS, MICROHENRIES OR MICROFARADS UNLESS OTHERWISE SPECIFIED. 2 C316 220P C311 16P 1. OUT (MCO) Q302 2SC5084 17 Notes: 4 L305 33nH R305 2.2K L301 100nH 1 (148-174MHz Band Shown) Schematic P/N: 770-030-0021 Rev. B PCB Assy. P/N: 650-030-0021Rev. B C216 220P VCC R307 220 VHF V.C.O. C214 10P C215 0.001 C312 220P 6 (MCO) Q202 2SC5084 VCO R X C301 220P 18 PAGE -42May 2001 L203 1.2t OUT (T8) R306 100 C316 0.001 R303 4.7K D202 1SV229 (T8) C213 3P 8 C217 4P Q203 2SC5084 (MCO) 2 Q302 2SC5084 L304 2.2uH C306 0.5P OUT 15 C314 12P D201 1SV229 C205 0.5P 3 C313 4P 17 C301 0.001 16 4 C317 4P Q303 2SC5084 L301 1.2uH 14 5 3 15 C203 0.75P C211 13P R207 220 VCO R X 16 R202 100K 13 C216 0.001 L204 2.2UH C208 4P C202 10P MOD C206 2.7P C204 1.2P R204 2.2K R206 100 Q202 2SC5084 D202 1SV217 C201 0.001 OUT C214 13P C205 1.2P L205 33nH R205 2.2K 6 C213 4.7P C208 4.7P C202 18P L201 1.2uH C212 220P VCO TX 11 11 R204 2.2K VCC 10 C217 4P Q203 2SC5084 7 12 UHF V.C.O. (440-470MHz Band Shown) Schematic P/N: 770-030-0018 Rev. D PCB Assy. P/N: 650-030-0020 Rev. A R706 47K TH703 150K TH701 10K 2 D702 MMBV109 D701 MMBV 105 R702 * R704 R710 2.2K R708 47K X701 12.8MHz LK701 * R705 47K R703 47K C702 100pF * TH702 33K C701 100pF TC701 20pF R714 2.2K CON1 C703 91pF R709 39K C704 180pF R711 4.7K R712 39K C401 47P - C706 220pF C403 47P C405 47P FUSE 4A CON1 D1 SW1 SW POLY Q702 MMBR9426 R715 2.2K 7.5V R1 15K + Q701 MMBR9426 R707 BATT 4 C705 100pF * R701 R713 47K C402 470P C404 470P C406 470P TH1 30K 1 3 TCXO Schematic P/N: 770-100-0002 Rev. D PCB Assy. P/N: 650-100-0002 Rev. D ACC-200 BATTERY FUSE Schematic P/N: 770-210-0010 Shown for reference only Schematic P/N: 770-200-0004 Rev. B PCB Assy. P/N: 650-200-0004 Rev. B SW401 SW402 MON (OPTION1) PTT C410 470PF PTT GND OPT2 OPT1 CON401 4PIN(M) 2 4 3 1 CON402 4PIN(F) SW403 OPTION2 C411 470PF C412 470PF P.T.T. Schematic P/N: 770-180-0017 Rev. A PCB Assy. P/N: 480-042-0028 Notes: 1. ALL VALUES ARE IN OHMS, MICROHENRIES OR MICROFARADS UNLESS OTHERWISE SPECIFIED. 2. ALL RESISTORS ARE 1/10W 5% UNLESS OTHERWISE SPECIFIED. PAGE -43May 2001 AUDIO ALERT RX EN TX EN BUSY LOCK D/T PLL EN CLOCK DATA TCXO MOD REVISIONS PWR H/L 386 EN N/S SW P/S 5V VOLUME CHARGE SPK REV A 6.8K IC402D MC14066BD IC401A MC14066BD 5V 5V 1 4 1 2 1 3 RV401 47KB R486 * 18K 6 5 + C405 0.001 R493 22K 9 DATA R427 100K 3 7 R422 47K IC401B MC14066BD RV403 47KB 5 Q416 KRA110S (PK) C478 10/4 2 1 Q401 KRA110S (PK) IC404B KIA324F 7 C442 0.022(K) R402 8.2K C441 0.0018 R403 8.2K R404 R406 8.2K 8.2K C443 0.0047 D401 KDS181 (A3) 14 IC404D KIA324F C447 0.015 D406 5.6V 4 - 1 R410 3.3K 7 R407 N/F RV402 22KB C406 0.1 R405 100K 8 X0 X1 68 7.5V F 16 INH A B C C L K I N IC401C MC14066BD 7 8 6 9 5 4 A G N D V O 3 F O U T 1 2 1 V O 2 R474 43KR C L K L . S H R 1 0 1 1 1 2 I N V 1 I N V 2 1 3 R473 43KR C463 0.047U(K) R432 4.7K R431 TX5V 47K 2 3 5V 5V C432 470P Q403 KRC104S (ND) Q406 KRA101S (PA) VCC SK N.C DI ORG DO Q410 8 CS R475 47K 120K C455 0.082U 9 10 + R477 120K R450 33K C437 1UF 13 12 + 13 1 IC406C 1 KIA324F 12 C467 0.033U (K) R485 220K C427 0.001 14 C464 C439 470P C434 0.1 CON404 14 PIN 14 13 12 11 N/C AUDIO OUT C425 470P C426 470P - GND C459 0.1 C458 0.1U(K) 5 R416 10K R415 47K 5V LK1 LK19 LK20 R460 47K R433 47K R434 47K 5V R421 47K R478 200K* R479 100K* R480 51K* 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 C468 0.033U (K) R444 82K 10.INT_SPK_MIC_DSBL 11.SPKR+ R454 22K MONITOR LOW BATT EXT TEST X1 X2(OPEN) GND ENCODE1 C L ENCODE2 O PWR H/L L N C ENCODE3O EMA CH1 N C FL / KT S6 L CH2 S XW F CC PD CDA HHS T EEEL ES 4 8 WT T NNK T T LK8 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 C471 0.1(K) R452 2.2K C470 1UF R453 1M Q405 KRC104S (ND) LED1 C460 15P X401 3.579545MHz 1 R200 1.2K LK16 R461 1M 4 2 3 + R447 220K C474 1UF R100 470R Q404 KRC104S (ND) D404 KDS184 R484 4.7K CRG3 ROOV G L XR8 ESSCN KEN6 SCCCD E2 1 N DATA EEP EN PLL EN ALART DATA IN IC409 RED LED HD4074818P BUSY GRN RED C461 15P 22222222233333333334 12345678901234567890 R495 N/F MONITOR 10 10UH 8777777777 7666666666 0987654321 0987654321 BUSY/SQ CALL 7.GND 8.MIC+ IC410C KIA324F 98 C469 10 + 1 R451 0.047U 1 10K (K) R449 20K LK18 C423 10/6.3 R464 4.7K R417 2.2K SWB+ TX TONES 4.+7.5V R446 820 14 + C465 5V L410 + 6 93C56 D402 KDS181 (A3) C424 470P 1.DATA 2.CLOCK IC410A 0.033U(K) KIA324F R442 0.033U(K) 27K IC410D KIA324F R443 2.4K 8 IC406D KIA324F 5V C453 0.0033(K) KRA104S(PD) 7 LK4 Q407 KRC101S (NA) Q702 KTC3875 1 2 3 4 5 6 7 8 9 10 11 12 C420 220P R441 3.9K 7 R440 4.7K C466 0.033U (K) C456 120P C452 0.1U(K) 1 4 - 5 + 8 C454 0.68U N . I N V 2 IC408 4 Q417 KTA1504S (ASY) 2 OHM/1W CON701 12 HEADER 3 IC410B KIA324F 3K 6 R476 360KR R487 G N D 9 1 D403 KDS193 (F3) SP1 R439 C462 0.047U(K) MF6-100 IC407 IC401D 1 2 MIC1 C-MIC 4 Z Z0 Z1 6 11 MC14066BD 10 R488 0 R704 100K 5 SWB+ C438 470P R702 12K ST C484 470P ST C419 5V IC402B 220P 14 MC14066BD 4 15 Y V C C 8 LK3 CON406 + C701 100/6V R703 12K Q413 KRC104S (ND) ST C418 220P D405 5.6V DATE 5/01 14 X Y0 Y1 A D J Q402 N/F 1 IC404C 1 KIA324F R9A C421 220P 22 + 7 V O S 220K 9 10 + R456 IC406A KIA324F 14053 C404 0.047(K) R409 270K 2 C476 0.1 C446 47P R411 13 12 + 2.2K C44 0.01 - 6 + 5 R430 220K C448 47P 6 11 10 9 5V + C431 4.7/10 C472 0.001 2.2K R469 5V 3 R472 36K R483 68 C136 100/6V ST Q412 KRA104S (PD) R9 BY DGC IC411 12 13 5 3 C477 470P 2 + 3 R429 27K R423 1.2K + C436 0.022(K) C435 0.1(K) IC406B KIA324F + 5 - 6 R471 30K R470 30K R457 22K SWB+ LK14 + Q701 2SK1579 R490 2.2K LK7 D701 5.6V 7 4 C449 0.033(K) LK15 LK2 LK5 IC405B LM358 R400 11K C400 0.0068 R412 22K R481 N/F R701 2.2K 10K R414 IC404A KIA324F 10K 7 R408 22K 4 220K 6 R401 680K R424 10K R428 1 IC402C 2 MC14066BD R459 *10K 8 TX 5V 1 11 CLOCK 10 IC405A LM358 8 3 + 1 2 4 R425 C485 470P D407 5.6V C413 C430 C483 470P 0.1 470P R489 4.7K R482 N/F C422 0.01 CHG R435 LK6 R426 1.2K DESCRIPTION RELEASED TO MANUFACTURING PTT IN 9 LK9 RX AUDIO IN 8 ALERT TONE OUT 7 LK17 R418 CALL LED 6 560 MIC CONTROL 5 LK21 AUDIO MUTE 4 CH404 Q411 KRC104S (ND) LK22 TX ENABLE 3 C415 470P GND 2 VCC 1 C414 470P SWB+ C433 470P C428 470P LK12 BCD ENCODE SW 4/16CH C416 470P 7.5V LINK TABLE (0R) VHF/UHF TABLE CON401 PTT SCHEMATIC P/N:480-042-0028 NORMAL LK1 LK2 LK3 LK4 LK5 LK6 LK7 LK8 LK9 N/F FIT FIT FIT FIT N/F FIT N/F N/F LK12 LK14 LK15 LK16 LK17 LK18 LK19 LK20 LK21 LK22 FIT N/F N/F FIT N/F N/F N/F N/F N/F N/F R486 R459 R493 R478 R479 R480 VHF 33K 1.2K UHF 18K 10K 22K 39K 20K 10K 22K 200K 100K 51K C481 470P C482 470P C480 470P C479 470P TITLE SP-300 Series Digital Schematic Diagram B DOCUMENT NUMBER SCALE PAGE -44May 2001 Digital Schematic SIZE NA SHEET 1 OF 1 12 7 R41 100 C53 1UF 13 C54 0.001 L4 100nH R43 10K C46 8P (VHF) P/N: 650-030-0021 11 MOD 6 Q16 MMBC1321 R26 18 C57 470P R27 4.7K P.A. MODULE(VHF) SCHEMATIC P/N: 650-030-0012 R32 300 3 TX 5V R25 3.3K + R24 5.6K C44 4.7/10(T) C61 470P VCO RX SECTION RV3 10K R46 2.2K C62 470P C63 C43 3P L1 47nH C42 0.001uF L2 0R 17 C35 0.001 R23 120 R22 4.7K R21 100 C38 43PF C36 14PF T3 C85 N/F C41 N/F C34 220P C903 0.01 C904 0.01 C910 0.01 R901 2.2K Q901 KTC4075 C908 33P D902 KDS226 C901 0.01 Q903 KTC4075 R902 2.2K Q904 KTC4075 Q905 KTC4075 C16 2P 5V R130 100 R125 22 20 19 18 16 3 15 Q4 KRA110S (PK) P/N: 650-100-0002 14 13 12 11 C15 0.1 2 OSI OSO DT LD CK *R EN *V VPD O/B PD RX VCC TST1 FIN FIN 1.8K 2 R5 1.8K 3 R6 2K 4 R7 1.8K 10 R8 910 C18 0.001 SWB+ C1 0.001 5V Q5 KRA104S (PD) C2 10/6.3 IC1 TK11450 L19 10uH POWER SAVE + + RX EN TX 5V 2 8 1 D17 5817 C60 + 4.7/10 0.1 1W IC3A LM358 Q19 KTC3875S Q21 KTC3875S (ALL) R55 1.5K RV1 10K C78 470P 5V 8 1 4 C59 0.47 (40) R110 270 C11 0.1 R1 10K C12 10/6.3 C109 470P C80 470P + R99 100K 1% 2 R62 68K 1% C81 470P C83 7P R57 100K 1% C82 470P 3 R61 68K 1% R135 4.7M 3 4 7 8 N/F FRONT-END (VHF) SCHEMATIC P/N: 650-110-0012 R65 51 L14 470nH IN Q1 KRA102S 5V (PB) C92 30P C90 7P C93 82P L15 150nH 5 GND C24 0.01 (P) C96 0.01 R14 2.7K R71 1K R12 3K 220K Q25 BFR92A (P2) C21 0.33 (P) Q2 KRA110S (PK) IC5 I MC3371 1uH TX 5V C5 470P C6 4.7/10 R97 10 + R94 1K X1 44.645M C7 0.001 C117 47P + Q3 KRA110S (PK) RX 5V D1 KDS181 (A3) C4 0.001 M U T E G N D C127 0.01 + O S C 2 1 2 M I X O M E S Q D R V I V C C 3 4 L M T I 1 0 1 1 1 2 1 3 1 4 1 5 M I X TX 5V F I L F I L O I D C O U P D C O U P 6 5 C121 20P C107 10P Q U A D C128 4.7/10 D12 KDS193 C122 0.001 C123 0.01 2 C124 C125 0.1u(K) 10K R95 82K R103 10K CF1 455F SQ C131 0.01 CF2 455HT R111 R112 10K 22K BUSY RV2 1KB R93 0R Q31 KRC104S (ND) T1 3210796 R113 470K + C134 C133 1/16 TH1 33K 5 O U T IC6 C112 L16 1mH 0.033(K) 7 B . P C113 0.1u(K) R91 470 R115 22 LM386N-3 G N D + I N 3 G A 1 I N 2 + C135 10/4 1 R116 22K C137 470P R117 22K C114 0.01 VR3 20KA R123 0R R122 4.7K R92 2.7K C116 0.1 Q34 KRC104S (ND) 8 G A 2 R88 100 L17 C111 1mH 0.1u(K) C115 220P 6 V C C PWR SW R114 100K 0.047 + B+ SWB+ R118 N/F LK501 N/F R121 220K Q28 KRC104S (ND) VOLUME AF EN ALERT SPK AUDIO N/S SW R106 R105 30K AUDIO AMP C132 4.7/20 R85 39K 4 1 R104 10K D13 KDS181S 1K RV4 1KB R96 39K 8 R84 18K Q27 KTC3875S (ALL) C106 R89 22 C129 10/16 R101 N/F C103 470P R83 18K C105 47P C104 0.001 C108 0.0015 A F 7 R82 10K 0.01 9 C118 33P R98 R102 22K R81 2.7K R86 R87 330K 1 6 L18 R77 22K 47K C98 0.001 C23 0.01 (P) C22 0.022 (P) * 22K 15K-27K R75 R72 C97 33P D11 KDS193 (F3) Q26 KTC3875S (ALL) R74 D8 KDS193 (F3) R78 2.7K R76 22K C102 0.1u(K) 1 GND 2 Q33 KTA1504S (ASY) C95 4.7/10 R68 22K R67 22K R69 470K D6 UPP9401 R59 39 6 OUT Q24 KRC104S (ND) 2.7K 5V C9 0.001 C49 N/F L13 8T C84 0.001 R64 22 C87 27P T2 + TP1 R13 C3 0.001 LOCK D/T C8 470P R11 100 5V TCXO P/S 5V 7 O S C 1 5V C20 470P Q7 KTA1504S (ASY) Q11 KTC3875S (ALL) 8 9 C25 1uF R15 100 Q6 KTC3875S (ALL) Q8 KTA1504S (ASY) C17 0.1 6 7 GND TST2 R4 5 O/A VDD 2.2K 1 MC145191F R2 100K TX EN C75 24PF B+ R66 100 C94 1uF R16 910 IC2 17 TCXO (VHF) 12.8MHz 7.5V R909 470 16V R3 PLL EN 1 3 L12 1.2uH SWB+ R908 10 R17 C26 12K 0.1 CLOCK C13 0.01 4 6 LK100 C906 18P R903 4.7K Q902 KTA2014 C911 0.01 R906 7.5K R907 27K R904 7.5K C905 R905 18P 27K DATA 4 C74 36PF 1 D901 KDS226 C902 0.01 5 XF1 45.1M L31 N/F C69 N/F C907 0.1 D9 ND433G MIXER (RL2) C66 470P C14 470P R50 1M PWR H/L C37 33P Q12 BFR92A (P2) + B+ 10K R54 C70 1K 1uF + C88 C65 0.1 10/10 IC3B LM358 7 R52 3.3K Q18 KRC104S (ND) 0.01 6 - 5 Q23 KRC104S (ND) L3 1.2uH 2 18 C73 30PF ANT1 STUD R58 470K R109 R53 R79 56 C79 0.1 R45 12K 15 C19 470P C77 0.001uF R70 9PF C72 6PF 5 Q22 KTA1663 (HY) R47 2R2 R48 2R2 R51 2R2 C64 470P R49 22R R63 150 C39 0.001 D18 KDS160 4 TX B2 C58 470P PRE OUT Q13 KTC3875S (ALL) 4 D5 UPP9401 L11 4T 7 5 16 L8 4T 470K 2 R33 3.3K DATE 4/20/01 C47 470P C45 10P 14 C76 Q17 MMBC1321 R31 300 R28 56 C56 0R (RC56) C50 33P R34 18 L7 4T C68 0.001UF 6 1 C51 10P R35 8.2K MOD BY DGC C67 470P L6 1uH L5 100nH R42 12K CHG RELEASED TO MFG R56 270 C55 0.001 D20 KDS160 R36 0R DESCRIPTION A R37 3.3K VCO TX SECTION REVISIONS REV TX B2 TX 5V Q14 KTC3875S (ALL) 22K R107 N/F CHARGE C126 0.01 D15 4004 B+ R108 56K D14 KDS181S Q32 KRC104S (ND) + C146 220P C145 470P FUSE SCHEMATIC P/N: 650-200-0004 + - NICAD BATTERY 7.5V P/N: 650-210-0010 TITLE SP-310, SP-330 VHF RF SCHEMATIC DOCUMENT NUMBER SCALE VHF RF Schematic SIZE NA SHEET 1 OF B 1 PAGE -45May 2001 12 Q14 KTC3875S(ALL) 7 VCO TX SECTION D20 KDS160 22 13 MOD OUT 6 R26 18 Q16 BFR92A (P2) C47 220P C45 220P R34 18 16 + R33 6.8K TX5V R45 22K 5 VCO RX SECTION C37 5.6P Q12 BFR92A (P2) 2 R21 33 L1 18NH R23 100 R22 4.7K L2 18NH MIXER T3 5 C903 0.01 D901 KDS226 C910 0.01 R901 2.2K Q901 KTC4075 Q903 KTC4075 D902 KDS226 C908 33P C902 0.01 R902 2.2K R903 4.7K Q902 KTA2014 C904 0.01 R904 7.5K R905 27K C905 18P R17 12K C16 2P R125 R130 100 22 20 19 18 17 C13 B+ 0.01 16 OUT 15 TCXO1 12.8MHz Q4 KRA110S (PK) GND MOD C15 R126 10K 8 3 + R18 10K R128 10K C10 10/4 TCXO LOCK D/T RV5 10K FREQ ADJUST 7.5V OSO OSI DT LD CK *R *V EN O/A VPD O/B PD VDD GND TST2 RX VCC TST1 FIN FIN R4 1.8K 2 R5 1.8K 3 R6 2K 4 R7 1.8K 1 Q6 KTC3875S (ALL) 6 7 Q11 KTC3875S (ALL) C17 0.1 8 9 C18 0.001 R8 910 10 R11 100 5V 5V 4 C20 470P 5.6K C11 0.1 C2 + C1 470P 5V Q5 KRA104S (PD) C25 1uF R15 100 Q7 KTA1504S (ASY) Q1 KRA102S (PB) 7 2 8 1 C109 470P C9 0.01 C59 0.47 (40) 2.7K R110 270 - 2 3 + R62 68K 1% C80 C81 470P 470P C83 12P C82 470P R64 22 C84 470P 4 C93 82P C92 18P 1 FRONT-END (UHF) SCHEMATIC P/N: 650-110-0013 C22 0.022 (P) R68 22K 2 + 1 5 G N D O S C 2 1uH R94 1K R97 10 + C127 0.01 Q3 KRA110S (PK) C4 470P M U T E M I X O 1 2 M E S Q D R V I V C C 3 4 L M T I 1 1 1 0 C129 10/16 C128 10/10 F I L O I D C O U P D C O U P 6 C107 10P 7 SQ RV2 1KB RV4 1KB R93 R96 39K 8 1 C118 33P C122 .001 R98 10K R101 N/F R103 10K D13 KDS181S Q31 KRC104S 2 C123 0.01 R95 82K T1 3210796 0.1U(K) TH1 33K C131 0.01 CF2 455HT R112 10K 22K 5 6 7 8 O U T V C C B . P G A 2 L16 1mH L17 1mH C111 0.1U(K) C113 0.1U(K) G N D + I N I N G A 1 4 3 2 1 C115 220P Q34 KRC104S (ND) R115 47 + C135 10/4 R116 R88 100 22K C137 470P C114 0.01 R91 470 C116 0.01 R114 100K LM386N-3 IC6 C112 0.033(K) R117 22K VR3 20KA R122 4.7K R92 2.7K R118 N/F Q28 KRC104S R123 0R R121 220K C126 0.01 22K R107 N/F LK501 N/F VOLUME AF EN ALERT SPK AUDIO N/S SW CHARGE D15 4004 R108 56K + D14 KDS181S R111 0.047 + B+ R105 27K C134 C133 1/16 PWR SW D12 KDS193 R106 CF1 455F R113 470K + C132 4.7/20 R85 39K C106 0.01 R89 22 Q U A D R84 18K B+ SWB+ Q33 KTA1504S(ASY) Q27 KTC3875 (ALL) C108 0.0015 A F F I L 5 R104 10K R102 22K C103 470P 9 C124 C125 + R81 2.7K R83 18K C105 47P C104 0.001 100 C121 20P C117 47P 5V RX 5V X1 44.645 2 1 1 3 1 4 IC5 MC3371 I C7 470P KDS193 (F3) R77 22K R86 1K M I X C23 0.01 (P) TX 5V 22K 18-27K R75 R82 10K D11 KDS193 (F3) Q26 KTC3875S (ALL) R74 R87 330K 1 6 TX 5V C6 4.7/10 D8 R78 2.7K R76 22K C102 0.1U(K) 47K L18 Q2 KRA110S (PK) + C95 4.7/10 C98 0.001 Q25 BFR92A (P2) R12 5.6K C21 0.33 (P) R61 68K 1% R135 4.7M L15 150nH R72 220K R69 470K R57 100K 1% 6 OUT R71 1K C97 30P C5 470P D1 KDS181 (A3) 8 4 R55 1.2K R65 51 L14 680NH C90 11P R67 22K C96 0.01 R14 2.7K 5V C12 10/6.3 1 C87 22P T2 Q24 KRC104S (ND) POWER SAVE + Q19 KTC3875S R99 100K 1% AUDIO AMP TP1 C24 0.01 (P) C3 470P 10/6.3 IC1 TK11450 L19 10uH R1 10K 3 O S C 1 SWB+ 4 6 MC145191F 1 C78 470P 5V IC3A LM358 C70 1uF Q21 KTC3875S (ALL) D6 UPP9401 R59 39 R66 R13 Q8 KTA1504S (ASY) 5 R16 910 R2 100K C8 470P P/S 5V TX EN RX EN TX 5V BUSY 12 11 C152 470P R132 + 13 0.1 IC8A LM358 2 - 14 IC2 D9 ND433G L12 N/F 100 C94 1uF C26 0.1 R3 2.2K PLL EN L31 N/F SWB+ KTC4075 C49 N/F L13 3T B+ C60 + 4.7/10 5 GND R909 470 16V Q905 Q904 KTC4075 C906 18P 470K C75 4.7PF ANT1 STUD RX 5V LK100 N/F R908 10 C66 470P RV1 10K XF1 45.1M C35 220P C69 N/F C911 0.01 R906 7.5K R907 27K DATA CLOCK 5V C41 6PF 1 D17 5817 10K R54 1K Q18 KRC104S (ND) C63 0.01 R109 0.1 1W C14 470P C42 27PF C38 15PF C36 7PF C34 220P 18 + PWR H/L 17 C901 0.01 R46 2.2K C62 470P IC3B LM358 7 R53 C88 0.1 + C65 10/10 R52 3.3K B+ R50 1M C43 5P C907 0.1 6 Q22 KTA1663 (HY) R47 2R2 R48 2R2 R51 2R2 R79 10R C79 0.1uF RV3 10K R23 KRC104S L3 100NH C64 470P R49 22R C61 470P R63 150 C39 470P R24 5.6K C77 470PF R70 C74 8PF C73 3PF C72 N/F 5 4 TX B2 15 OUT Q32 KRC104S C146 220P C145 470P FUSE SCHEMATIC P/N: 650-200-0004 + - NICAD BATTERY 7.5V P/N: 650-210-0010 TITLE SP-320 / SP-340 UHF RF SCHEMATIC DOCUMENT NUMBER SCALE PAGE -46May 2001 DATE 04/01 R58 470K C58 470P C44 4.7/10(T) C19 220P BY DC 7 3 D18 KDS160 D5 UPP9401 L11 3T C76 N/F P.A. MODULE(UHF) SCHEMATIC P/N: 650-230-0013 2 PRE OUT Q13 KTC3875S(ALL) 4 L8 3T L7 3T 6 Q17 MMBR951 R32 300 R28 220 R25 4.7K STREENG C50 12P 1 5 14 CHG C67 470P L6 820NH C68 27PF C56 12P R31 300 R27 4.7K L5 18NH R42 12K C51 6P C46 3P C57 470P DESCRIPTION MANUFACTURING R56 270 C55 470P L4 18NH R36 0R R35 5.6K (UHF) P/N: 650-030-0020 TO 220P MOD R43 10K REVISIONS RELEASED R41 C54 C53 1uF 11 TX B2 TX 5V R37 1.2K REV A UHF RF Schematic SIZE NA SHEET 1 OF B 1 REVISIONS REV A RELEASED DESCRIPTION TO MANUFACTURING CHG BY DGC DATE 03/01 P.A. MODULE TCXO IC2 PLL CIRCUIT TCXO (12.8MHz) TX VCO REF L.P.F. LEVEL SHFTER TCXO1 ANT SW TX VCO V PLL EN DATA Q503 D5 CPU +5V Q5 F in V Batt TX 5V Q22 CONTROL 16V B+ INVERTER IC3B LOCAL LPF BUFFER IC411 IC406B IC401A 1 Q12 RX BUFFER 2 1 3 L1,L2 CURRENT DETECTOR RV3 POWER ADJUST LOW FROM CPU Q302/303 RX VCO CONT IC3A RV1 POWER ADJUST HI DC/DC CONVERTER BALANCE RV401 IC405B D6 CURRENT SENSOR MOD TCXO MOD ANT Q16/Q17 Q6,7,8,11 L/D Q502 Q202/203 CONT Ref Freq L.P.F. Q501 C21,C22 R TX BUFFER TX B+ 14053 X RV403 TX B+ R478,479,480 6TH LPF IC407 FRONT END MF6 CTCSS/DCS ENCODE SUB AUDIO LEVEL T2/3/D9 MIXER FILTER LOW NOISE AMP 14503 Y IC406C IC407 FILTER Q60 IC406A IC407 RX 5V 2ND LPF 2ND LPF 25KHz BAND PASS 2ND LPF CF1 L/D CH SEL Q403/417 LOW BATT DETECTOR RX +5V 3.57 XF1 1st IF FILTER 45.1MHz SUB AUDIO ENCODE LED CONT VCC MON 12.5KHz BAND PASS CF2 T1 CHANNEL TX/RX INDICATION LED1 DUAL COLOR Q404/405 LED DRIVER 455KHz X1 2nd LOCAL 44.645MHz X401 CALL DET IC409 CPU LOW BATT QUADRATURE 455KHz 1st IF AMP IC5 MIXER INPUT Q25 MUTE AF OUT MUTE SQ IN IF IC FIL IN FIL OUT PTT Q24 INVERTER 386 EN OPTION BUSY ALERT Q410 RESET IC408 EEPROM RV2 SQ LEVEL L16/C111 FAST INTEGRATER Q27 NOISE AMP Q26 NOISE FILTER RX +5V CON701 1 2 3 4 5 6 7 8 9 10 11 12 IC411 14503 Z +7.5V GND IC410 300HZ HPF IC404C/D RV402 TX MOD LEVEL AF LEVEL IC 404A/B 3KHz LPF R451/C471 MIC IC402 IC6 LM386 AUDIO AMP 3 4 SPK VR3 5 TX AF AMP DEMPHASIS SPLITTER FILTER 12PIN CPU AF MUTE MIC1 SP1 D15 CHARGE FUSE VCC VCC 5V REGULATOR V Batt IC1 5V TITLE D16 REVERS PROTECTOR DOCUMENT NUMBER SCALE Block Diagram SP-300 Series SYSTEM ELECTRICAL BLOCK DIAGRAM SIZE 060-***-**** NA SHEET 1 OF B 1 PAGE -47May 2001 PCB LAYOUTS LED1 CH404 C132 L13 D5 VR3 C75 R70 C701 L11 L16 RV2 C74 L17 C136 FON1 L8 C73 R93 RV4 L7 J3 T1 C76 VR1 IC5 RV3 CF1 L18 FRONT END MODULE Q22 X1 R53 R54 R65 C93 L15 C65 CF2 C87 T2 XF1 LK100 XF2 L14 TCXO1 C13 W1 T3 R125 C483 C484 D407 PA MODULE TCXO MODULE RX1 TX1 B+1 C19 C22 C23 C21 Q402 IC401 RV403 Q406 R421 R449 R429 C457 RV402 R450 R431 R495 R406 C404 R453 R407 R478 R479 R480 IC410 C470 IC408 C460 X401 R701 Board Layout (Top) Main Board Assembly 416121B PAGE -48May 2001 R461 C461 R411 C448 C425 D701 IC409 IC407 C449 R412 VCO MODULE C439 D406 R414 R432 C471 R452 R451 R483 C464 R441 C24 D15 R446 R442 CON404 C465 C145 C146 C478 C474 C463 TP1 R493 C57 R459 R486 R408 R439 C433 B+2 RV401 R43 C426 416121B C428 Board Layout Board Layout (Bottom) Main Board Assembly 416121B Q'TY PART NO. 1 1 550-021-0025 2 1 490-070-0035 NAME PLATE 3 1 650-180-0021 PTT ASSEMBLY 4 1 560-130-0046 PTT TENSION PLATE 5 1 760-040-0027 PTT PAD 6 1 560-050-0058 HOLDER PTT 7 2 330-110-0134 (+)MACHINE SCREW (PH) 8 1 SEE NOTE 1 HELICAL ANT (VHF) 8-1 1 SEE NOTE 1 WHIP ANT (UHF) 9 1 330-220-0018 CH GASKET 10 1 330-220-0017 VOL GASKET 11 1 490-200-0054 TOP OVERLAY (4 CHANNEL) 11-1 1 490-200-0055 TOP OVERLAY (16 CHANNEL) 12 1 330-260-0004 SPRING(CH) 13 1 330-260-0005 SPRING(VOL) 14 1 660-090-0107 KNOB VOL. 15 1 660-090-0106 KNOB CH. 16 1 330-230-0051 FELT 17 1 330-220-0019 GASKET 18 1 050-010-0024 SPEAKER 19 1 560-090-0043 BRACKET(SPK) 20 2 330-111-0069 (+)TAPPING SCREW (BH) 21 1 330-160-0013 BUSHING(MIC) 22 1 050-020-0002 MIC CONDENSER 23 1 550-090-0010 A/C HOUSING ASS'Y 24 1 760-100-0003 CONNECTOR SEAL 25 2 330-110-0143 (+)MACHINE SCREW (PH) 26 1 660-160-0047 LENS(LED) 27 1 660-010-0175 COVER A/C 28 1 330-110-0146 (+)MACHINE SCREW (FH) 29 1 560-070-0011-C CHASSIS 30 2 330-110-0131 (+)MACHINE SCREW (PH) 31 1 906-723 PROTECTION SHEET 32 1 480-020-0017 ANTENNA STUD KIT 33 1 650-230-0012 PA MODULE (VHF) 33-1 1 650-230-0013 PA MODULE (UHF) 34 2 560-090-0012 BRACKET 35 1 390-025-0007 INSULATION PLATE 36 1 560-132-0001 SPACER(CH SW MTG) 37 1 NOT AVAILABLE P.C.B MAIN (SP-300) 37-1 1 NOT AVAILABLE P.C.B MAIN (SP-310) 37-2 1 NOT AVAILABLE P.C.B MAIN (SP-320) 37-3 1 NOT AVAILABLE P.C.B MAIN (SP-330) 38 1 650-030-0021 VCO MODULE (VHF) 38-1 1 650-030-0020 VCO MODULE (UHF) NO. 56 VHF 55 UHF 58 SEE NOTE 1 8 57 SEE NOTE 2 41 15 54 X4 12 53 X4 14 11 47 42 40 13 49 X2 30 X2 36 9 51 X2 26 48 50 ONLY UHF 43 29 52 X2 45 39 46 35 10 44 37 20 X2 7 X2 4 19 31 ASSEMBLIES GUIDE 38 6 PART NO. 5 32 SEE NOTE 3 18 3 17 16 34 X2 33 2 1 DESCRIPTION 480-042-0020 A/C Interconnect Assembly 23, 24, 27 AND 2PCS OF 25 480-042-0027 Knob Kit 12, 13, 14 AND 15 480-042-0026 Front Cover Kit 1, 2, 9, 10, 11, 11-1, 16, 17 AND 26 22 21 ma xon 25 X2 INCLUDES PART NAME UPPER COVER ASS'Y 39 1 650-100-0002 TCXO MODULE 40 1 650-110-0012 FRONT END MODULE (VHF) 40-1 1 650-110-0013 FRONT END MODULE (UHF) 41 1 830-010-0010 ROTARY SW (4 CHANNEL) 480-042-0028 PTT Cover Kit 4, 5, 6 AND 2 PCS OF 7 41-1 1 830-010-0011 ROTARY SW (16 CHANNEL) 550-030-0024 Back Cover Assembly 47, 48, 50, 55, 2 pcs ea of 49, 51 and 52 42 1 902-001-0203 VOLUME (ON/OFF) SWITCH 550-090-0008 PTT Pad Assy 4 and 5 43 1 140-020-0054 CONNECTOR SOCKET 44 1 560-110-0101 TERMINAL 45 1 772-363-A SHIELD CAN 46 1 330-220-0049 GASKET RING 47 1 560-082-0007 COVER BACK 48 1 010-051-0007 DOUBLE TAPE 49 6 560-110-0100 TERMINAL 50 1 650-200-0004 SUB PCB 51 2 560-090-0072 BRACKET 52 2 600-788 (+)MACHINE SCREW (PH) 53 4 330-220-0037 GASKET RING 54 4 330-110-0130 (+)MACHINE SCREW (PH) 55 1 NOT AVAILABLE FCC NO LABEL 56 1 NOT AVAILABLE NAME LABEL 57 1 SEE NOTE 2 BATTERY PACK 58 1 550-070-0021 BELT CLIP 27 24 23 28 NOTES: 1. Contact Topaz3 Customer Service Department for antenna part numbers. 2. Refer to Maxon Price Guides for battery options. 3. Item 30 (Antenna Stud Kit) includes all hardware to mount antenna. Exploded View PAGE -49May 2001