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RELM RM8150 Series Service Manual

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RM8150
SERVICE MANUAL

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Summary of Contents for RELM RM8150 Series

  • Page 1 RM8150 SERVICE MANUAL...

  • Page 2: Table Of Contents

    Contents Chapter 1 Introduction............2 Chapter 2 Radio Overview..........3 Chapter 3 Mode Combinations.........4 Chapter 4 Disassemble For Repair……………………….……..5 Chapter 5 Circuit Description……………………………………….7 Chapter 6 Semiconductor Data……………………………..……..9 Chapter 7 Description of Components…………….…………..10 Chapter 8 Adjustment............22 Chapter 9 PCB Diagram............24 Chapter 10 Interface Functions........37 Chapter 11 Packing............37 Chapter 12 Troubleshooting..........38 Chapter 13 Specifications Parameters......38...

  • Page 3: Chapter 1 Introduction

    Introduction the following table before using. Any articles are found lost or damaged, This manual applies to the service and maintenance of RM8150 series of please contact the distributor without delay. FM mobile radio, and is designed for the engineers and professional technicians that have been trained by our company.

  • Page 4: Chapter 2 Radio Overview

    RM8150 SERVICE MANUAL conductor to the positive terminal of the accumulator and the black con- 2.2 Display Screen -ductor to the negative terminal. At last, ring the remained conductor and fix it. Note: Please maintain the sufficient relaxation of the power cable to make it convenient to dismantle the radio in the state of power connection.

  • Page 5: Chapter 3 Mode Combinations

    RM8150 SERVICE MANUAL Buttons Function Description Buttons Function Description Press this button to make selection among the 9.Power level 26.Call Button 1 Sends the DTMF/2Tone code assigned to call high, medium and low transmission power, and Selection 1 key. will be shown on the LCD 27.Call Button 2 Sends the DTMF/2Tone code assigned to call to represent the current transmission power.

  • Page 6: Chapter 4 Disassemble For Repair

    RM8150 SERVICE MANUAL Steps for setting the functional parameters of the radio by PC are as 10)CTCSS(67Hz) deviation follows: 11)CTCSS(254.1Hz) deviation A.Install KSP8200 on the PC. 12)Receiving sensitivity B.As shown in the figure below, connect the radio and the serial port 13)9-levle/1-level Squelch open of the PC with the special programming cable KSPL-05 14)9-levle/1-level Squelch close...
  • Page 7 RM8150 SERVICE MANUAL . Instruction for disassembly of the station for maintenance 1 RF-PCB Disassembly .Release the 9 screws (M3x25) for the upper and lower covers, open the aluminum alloy lower cover (see the left figure below).

  • Page 8: Chapter 5 Circuit Description

    RM8150 SERVICE MANUAL After the disassembly above, you can carry out corresponding repara- .Release the 4 (M2.5x5) screws of the baffle and the 2 fixing screws -tion and adjustment according to the actual malfunction. of the 15PIN DB socket, remove the metal baffle, the plastic buckle and the horn hole plug (see the right figure above).
  • Page 9 RM8150 SERVICE MANUAL 1st High frequency amplifier PIN3 PIN 5 Signals entering the antenna enters RF amplifier (Q26) via the trans- IF demodulation TA31136 -mitting/receiving switching circuit (D30/D31) and the band-pass filter (L48, L38 and variodes: D50, D26). After being amplified, the signals are filtered by the band-pass filters (L30, L51 and the variodes: D21, Wide D22) before entering the 1st mixer (Q21).

  • Page 10: Chapter 6 Semiconductor Data

    RM8150 SERVICE MANUAL -cted and the red LED (D12) is on, Led D1 to D4 provide the LCD back- Transmitting system -light, which is on when operating the radio. The LCD is in the Block diagram shape and can display up to 8 digits or letters. Encoding AUDIO ANT SW...

  • Page 11: Chapter 7 Description Of Components

    RM8150 SERVICE MANUAL Pin Port Name In/Out Function Pin Port Name In/Out Function BSHIFT Clock selection control KEY BLC Front panel keypad backlight control EXT SPK External SPK conversion output RESET CPU reset input P4 key XOUT CPU clock output P3 key P2 key CPU clock input...
  • Page 12 RM8150 SERVICE MANUAL Characteristic of XF1/XF2 crystal filter Item Model Function Description Item 2SC2412K Noise amplifier Rated Value Nominal center frequency U201 RA601317M Transmitting final power 49.95mhz Transmission band width amplifier IC 7.5khz or higher, but within 3db 40dbstop band width DTA144EE Wide/narrow band switch 20.0khz or lower...
  • Page 13 RM8150 SERVICE MANUAL No Material Serial No. Name/Spec. Quty Installation Positon U304 102-FP3502-R01 Regulator IC / XC62FP3502PR,SOT-89,ROHS U803 102-HT9172-R01 DTMF decode IC/ HT9172,sop, ROHS U401 102-M3062L-R01 CPU / M16C-M3062LFGPGP,FLASH,100P6Q-A,ROHS U301, U303, U333 102-M78L05-R01 Regulator IC / NJM78L05UA ROHS D839 103-00DZ18-R01 Chip regulator diode / 02DZ18(X.Y),ROHS 103-00MA77-R01 Chip HF on-off diode / MA77,0805,ROHS...
  • Page 14 RM8150 SERVICE MANUAL No Material Serial No. Name/Spec. Quty Installation Positon R46, R290, R869, R235, R117, R843, R7 63 109-060103-R01 Chip resistor / 0603,10K 5%,ROHS R216, R60, R243, R251, R293, R414, R418,R309, R34,R39, R419, R812, R816, R877, R392, R600, R101, R106, R727, R743, R767,R768, R199, R576, R292, R307, R8 109-060104-R01 Chip resistor / 0603,100K...
  • Page 15 RM8150 SERVICE MANUAL No Material Serial No. Name/Spec. Quty Installation Positon 109-200471-R01 Chip resistor / 2010,470R 5%,ROHS R262 111-010000-R01 Plug-in voltage-dependent resistor / 10D220 ROHS 111-030000-R01 Chip Fuse / 433003,3A/32V,1206 ROHS F841 112-063100-R01 C75, C170, C150, C253, C742 Chip capacitor / 0603,10P 5%,50V,C0G,ROHS 112-063101-R01 Chip capacitor / 0603,100P...
  • Page 16 RM8150 SERVICE MANUAL No Material Serial No. Name/Spec. Quty Installation Positon C299, C318, C328, C371, C372, C373, C380, C381, C382, C383, C431, C621, C672, C837, C850, C871, C766, C322 C552, C555 112-063472-R01 Chip capacitor / 0603,4700P 10%,50V,X7R,ROHS 112-063473-R01 C858 Chip capacitor / 0603,0.047uF 10%,16V,X7R,ROHS C608 112-063474-R01...
  • Page 17 RM8150 SERVICE MANUAL No Material Serial No. Name/Spec. Quty Installation Positon 115-3R06R0-R01 Chip air-cored coil / 0.9*3.0*5.5TR,Positive ,ROHS 115-3R09R5-R02 Chip air-cored coil / 0.5*3.0*9.5TR,Positive ,ROHS 117-000000-R04 Chip bead/ EMI,FILTER, SMT,BLM11A221S,0603,,ROHS L89, L90, L91, L92, L93, L94, L95 117-000000-R07 Chip bead / EMI,FILTER, SMT,BLM41P600SPT,1206,,ROHS L54, L55 117-000000-R08 Chip bead / EMI,FILTER, SMT,BLM11A601S,0603,,ROHS...
  • Page 18 RM8150 SERVICE MANUAL No Material Serial No. Name/Spec. Quty Installation Positon 103-SM3MA1-R01 Chipdiode / DSM3MA1,ROHS D838 104-A123JE-R01 Chip triode / DTA123JE(ROHM),ROHS 104-A144EE-R01 Chip triode / DTA144EE(ROHM),ROHS 104-C114EE-R01 Chip triode / DTC114EE(ROHM),ROHS Q402, Q482, Q682, Q472 104-C144EE-R01 Chip triode / DTC144EE(ROHM),ROHS Q403, Q423 104-KRC102-R01 Chip triode / KRC102S,ROHS...
  • Page 19 RM8150 SERVICE MANUAL No Material Serial No. Name/Spec. Quty Installation Positon 109-060204-R01 R319, R320 Chip resistor / 0603,200K 5%,ROHS 109-060220-R01 Chip resistor / 0603,22R 5%,ROHS R300 109-060221-R01 R98, R317, R153 Chip resistor / 0603,220R 5%,ROHS 109-060222-R01 Chip resistor / 0603,2.2K 5%,ROHS R175, R185, R318, R626, R197 109-060223-R01...
  • Page 20 RM8150 SERVICE MANUAL No Material Serial No. Name/Spec. Quty Installation Positon 112-063103-R01 Chip capacitor / 0603,0.01uF 10%,50V,X7R,ROHS C576, C577, C881, C882, C618, C638, C242, C21, C33, C925, C556, C557, 112-063104-R01 Chip capacitor / 0603,0.1uF 10%,50V,X7R,ROHS C71, C88, C271, C275, C286, C314, C329, C17, C26, C119, C336, C593, C356, C387, C34, C37, C558, C888, C28, C127, C135, C402, C403, C405, C80, C812, C895, C155,...
  • Page 21 RM8150 SERVICE MANUAL No Material Serial No. Name/Spec. Quty Installation Positon 112-063R50-R01 Chip capacitor / 0603,0.5P 0.1P,50V,C0G,ROHS C104, C105, C291, C312, C292, C313 112-063R75-R01 Chip capacitor / 0603,0.75P 0.25P,50V,C0G,ROHS 112-072105-R01 Chip Ta capacitor / TP MODEL,SIZE P,1uF 20%,10V,ROHS C603, C604 112-072155-R01 Chip Ta capacitor / TP MODEL,SIZE P,1.5uF 20%,10V,ROHS C504, C634...
  • Page 22 RM8150 SERVICE MANUAL Material Serial No. Name/Spec. Quty Installation Positon 124-010000-001 4PIN Plug-in GPS socket / 1020042008,4PIN,1.27mm,,ROHS CN609 124-020000-R08 FFC/FPC Connector / 34PIN,P=0.5mm,Horizontal lower contact with lock ROHS CN401 124-050000-R14 3.5mm Plug-in Speaker-Mic socket ,ROHS 124-090000-R01 2PIN Plug-in Speaker socket / WCPW20-02,,ROHS CN601, CN606 124-110000-R08 15PIN Plug-in socket / 2DS-D112-P12(3*5PIN),ROHS...

  • Page 23: Chapter 8 Adjustment

    RM8150 SERVICE MANUAL Chapter 8 Adjustment 8.1 Adjusting explanation Table 8.1 Voltage controlled oscillator adjust Instrumentation requirement Item Test condition Test point Adjustment parts remarks Setting Power supply voltage DC Power supply teriminal:13.8V Digital 0.8V 0.3V review Transmitting lock CH: transmit low frequency point 5.5V 0.3V voltage CH: transmit high frequency point...
  • Page 24 RM8150 SERVICE MANUAL Item Test condition Instrumentation Test point Adjustment parts Requirement Remarks Max. CH: Low Frequency Point Frequency deviator Antenna PC Tuning mode Broadband adjust 500Hz deviation CH: Medium Frequency Point /Integration Tester to 4 kHz/ narrowband adjust to 2KHZ CH: High Frequency Point AG: 1kHz/100mV Modulation...

  • Page 25: Chapter 9 Pcb Diagram

    RM8150 SERVICE MANUAL Chapter 9 PCB Diagram RM8150-01 TOP Numerical Chart PCB...
  • Page 26 RM8150 SERVICE MANUAL RM8150-01 TOP Item Chart PCB...
  • Page 27 RM8150 SERVICE MANUAL RM8150-01 BOTT Numerical Chart PC...
  • Page 28 RM8150 SERVICE MANUAL RM8150-01 BOTT Item Chart PCB...
  • Page 29 RM8150 SERVICE MANUAL MAINBOARD TOP UNIT MAINBOARD BOTTOM UNIT...
  • Page 30 RM8150 SERVICE MANUAL DISPLAY TOP UNIT DISPLAY BOTT UNIT...
  • Page 31 RM8150-01 schematic diagram: TX/RX circuit 5.6k RM8150 (136-----174) PLL CLK R676 TEMP2 PLL DA U201 TH14 PLL LE HZU5ALL C677 RA60H1317M D330 C689 100K C391 2SA1832 U405 C398 NC C325 C338 C331 C332 C394 C301 2P +B12V C330 UPB1509 POWER MODULE RX VCO C159 R148...
  • Page 32 RM8150 SERVICE MANUAL RM8150-02 TOP Numerical Chart PCB...
  • Page 33 RM8150 SERVICE MANUAL RM8150-02 TOP Item Chart PC...
  • Page 34 RM8150 SERVICE MANUAL RM8150-02 Bottom Numerical Chart PCB...
  • Page 35 RM8150 SERVICE MANUAL RM8150-02 BOTT Item Chart PCB...
  • Page 36 RM8150-02 schematic diagram: TX/RX circuit +B12V C79* 5.6k PT8200-02 (400-----470MHz) PLL CLK R676 KRC102S TEMP2 PLL DA U201 C677 TH14 POWER DET1 PLL LE D330 100K RA55H4047M C689 C391 2SA1832 C398 0.5p C325 C338 C330 C331 C332 POWER MODULE 1.5K HZU5ALL RX VCO C159...
  • Page 37 Schematic diagram for KEY board and microphone board R716 R726 R725 R339 R338 100R R718 4.7K CN701 4.7K R438 2SC4617 Q701 2SC4617 R727 R340 R711 560R R724 R723 Q702 PWRSW 220R 220R 220R C703 D705 C704 D708 R717 D703 150R D709 R719 VOLI...

  • Page 38: Chapter 10 Interface Functions

    RM8150 SERVICE MANUAL Chapter 10 Interface Functions 15Pin Aux Serial port Microphone VOLI Filtered audio frequency input Name description External Mic External MIC signal input MIC DAT serial data input of keyboard microphone Ignition input HOOK/RXD1 Off-set signal input/ serial data input Received signal detection output MIC signal input.

  • Page 39: Chapter 12 Troubleshooting

    RM8150 SERVICE MANUAL Chapter 12 Troubleshooting Chapter 13 Specifications Parameters RM8150 Problem Solution Power on General Specifications A.The power cable is not connected with the 13.6V DC Failure Power Supply accumulator or the host reliably. Please -25 ~ + 55 Operating Temperature connect the power cable reliably.

  • Page 40: Chapter 14 Appendix

    RM8150 SERVICE MANUAL 65 dB Intermodulation EIA Adjacent Channel Selectivity 60 dB@12.5KHz, 70 dB@20/25KHz Spurious Rejection 70 dB Rated Audio Audio Distortion @ Rated Audio Audio Response (300-3000Hz) +1 ~ -3 dB Conducted Spurious Emission -58 dBm<1 GHz, -47 dBm>1GHz Chapter 14 Appendix Name Type...
  • Page 41 RM8150 SERVICE MANUAL Appendix 3 DAMAGEABLE STRUCTURED PART LIST NAME DTY. NAME QTY. 604-082000-R01 FACEPLATE ASSEMBLY 202-008200-R02A SPEAKER SOCKET COVER 202-008200-R01A SILICA GEL KEYPAD 203-008200-R04A BAFFLE PLATE 107-008200-R01 LCD SUBASSEMBLY 201-008200-R03A PLASTIC BOLT 204-008200-R06A SPEAKER WASHER 301-30060G-R01 SCREW M3.0x6.0 KEY PCB ASSEMBLY 203-008200-R05A SHIELDING FRAME SCREW M2.6x6.0...
  • Page 42 RM8150 SERVICE MANUAL Appendix 4 STRUCTURED PART LIST NAME QTY. 107-008200-R01 RM8150 LCD SUBASSEMBLY 120-100000-R38B RM8150 POWER CABLE 120-400000-R04 BLACK-WHITE TWISTED PAIR 120-400000-R05 FLAT WINDING CABLE 201-008200-R01A RM8150 PLASTIC FACEPLATE 201-008200-R02A RM8150 VOLUME KNOB 201-008200-R03A RM8150 PLASTIC BOLT 201-008200-R04A RM8150 LENS 201-008200-R05A RM8150 LIGHT GUIDE LENS 202-008200-R01A...

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