QUANZHOU WOUXUN KG-689 Service Manual
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QUANZHOU WOUXUN KG-689 Service Manual

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Service Manual
Model: KG-689
Frequency: 400-470MHz
Version: KG-689-0801-V1
QUANZHOU WOUXUN ELECTRONICS CO., LTD

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Summary of Contents for QUANZHOU WOUXUN KG-689

  • Page 1 All manuals and user guides at all-guides.com Service Manual Model: KG-689 Frequency: 400-470MHz Version: KG-689-0801-V1 QUANZHOU WOUXUN ELECTRONICS CO., LTD...

  • Page 2: Table Of Contents

    All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 KG-689 transceiver service manual Contents Introduction………………………………………………………………………………………….2 Personal safety…………………………………………………………………………………….. .2 Disassembly for repair…..……………………………………………………........3 Circuit description………………………………………………………………………………...…5 Part list…………………………………………………………………………………...…………14 LCD part list............................22 Exploded view...…………………………………………………………………………………….23 Packing………………………………………………………………………………………..…..23 Adjustment…………………………………………………………………………………………..24 Schematic…………………………………………………………………………………………..27 LCD Schematic...........................28 LCD Board............................29...

  • Page 3: Introduction

    All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Introduction Scope of this manual This manual is intended for use by experienced technicians familiar with similar types of commercial grade communications equipment. It contains all required service information the equipment and is current as of the publication date.

  • Page 4: Disassembly For Repair

    All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Disassembly for repair Version: KG-689-0801-V1 Page 3 of 35...
  • Page 5 All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Disassembly for repair Version: KG-689-0801-V1 Page 4 of 35...

  • Page 6: Circuit Description

    All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Circuit Description 1. Frequency association Frequency association is shown in Chart 1. T:400-470MHz R:400-470MHz 450KHz 38.850MHz 1ST MX MIX.IF.DET AF AMP ANT SW RF AMP 2nd LO...
  • Page 7 All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Circuit Description (3). Intermediate amplifier As Chart 3 shows, the first intermediate frequency blow up by T253, then enter U261 (FM signal frequency modulation integrate circuit). At time signal will mix with second root flap, switch to second IF signal.
  • Page 8 All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Circuit Description T47 1 U411B U411A T43 3 MODE T43 0 PT T/RX232 T41 4 D4 42 T44 3 SAVE T43 8 Chart 4 (2). VOX circuit Blow up audio frequency signal comes from the speaker’s by T443, change the AC audio frequency to DC...
  • Page 9 All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Circuit Description 4. Select transmit and receive circuit As shown in Chart 5. Output transmit signal will pass transmit and/or receive switch circuit and low-pass, then send to antenna. Transmit and/or receive circuit has made up of D146 D145 D216. Start during transmitting and stop during receiving, switch transmitting system and receiving system.
  • Page 10 All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Circuit Description 5. PLL Circuit (1) PLL 19.25MHz reference oscillator output through PLL IC(U311) reference frequency then bring 5KHz and 6.5 KHz reference frequency. VCO output signal blew up by T337, then bring compare frequency by U311 dispart frequency. Use different dispart frequency ratio by CR311, and get different inspect posture consult frequency.
  • Page 11 All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Circuit Description 6. Reset and reserve circuit When connect with power, one reset circuit made up of T823 R823 R825 C825 output a positive impulse, this impulse signal add to the 37th feet reset side of U81. When turn off the power, the 37th feet side of U811 turn low, and CPU send all data to U835 to store, then go into reserve.
  • Page 12 All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Circuit Description 7. Battery save circuit One receive state the squelch turn off, if not press any key within 5 second, the power circuit will enter save state mode, This control circuit through CPU directly control.
  • Page 13 All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Circuit Description 8. Select power circuit Power offset circuit as following: TX POWER Power voltage of power amplifier Output 5V by U906 regulator circuit, used for reset circuit power VDD of U511 U853 D711 and U8111.
  • Page 14 All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Circuit Description 9. CTCSS / DCS circuit DCS signal output CTCSS audio frequency signal from the 15th feet of CPU (U811), and output DCS signal from the 29th. When transmit CTCSS, the DCS output from CPU be modulated by low-pass; When receive, directly disposed by CUP after through detection frequency.

  • Page 15: Part List

    All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 PARTS LIST Designators Name and specifications Footprint C211 Capacitance 0.3P 0402 C246 C226 Capacitance 0.5P 0402 C348 Capacitance 0.75P 0402 C351 C358 368 C228 C230 Capacitance...
  • Page 16 All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 PARTS LIST Designators Name and specifications Footprint C1081 C284 Capacitance 180P 0402 C278 Capacitance 200P 0402 C870 C424 C265 C264 C465 Capacitance 220P 0402 C295 Capacitance...
  • Page 17 All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 PARTS LIST Designators Name and specifications Footprint C144 Capacitance 0603 C132 C129 Capacitance 102P 0603 C276 C275 Capacitance 104P 0603 C835 Capacitance 105P 0603 C124 C151...
  • Page 18 All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 PARTS LIST Designators Name and specifications Footprint R114 R117 R119 R375 Resistance 680R 0402 R1053 R1122 R203 R848 R323 R303 R336 R453 R280 R875 R272 R870...
  • Page 19 All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 PARTS LIST Designators Name and specifications Footprint R265 R264 R181 Resistance 180K 0402 R524 R254 R841 R519 R514 Resistance 220K 0402 R443 Resistance 270K 0402 R1126 R182...
  • Page 20 All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 PARTS LIST Designators Name and specifications Footprint L354 L357 L366 L412 High frequency fold 100NH 0603 Inductance L331 L345 L352 High frequency fold 120NH 0603 Inductance...
  • Page 21 All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 PARTS LIST Designators Name and specifications Footprint D211 D215 D111 D216 Diode HSC277 D-ESC D326 Diode LL4148 D-ESC D362 Diode MA2S11 D-ESC D133 D146 Diode BA592...
  • Page 22 All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 PARTS LIST Designators Name and specifications Footprint U511 Sound Chip VOICE U-KX0602 U811 CMOS chip AP88P868 U-QFP80 CR270 Chinaware 50C24 FX-6060 FL261 Filter 450K FL-PBF FL251 FL252 Partnership Crystal 38.850MHz...

  • Page 23: Lcd Part List

    All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 KG-689 LCD PARTS LIST Comment Footprint Quantity Designators 102P C0603 C722 C723 103P C0603 C725 104P C0603 C721 1.8K R0402 R730 2.2K R0402 R726 R727 R728...

  • Page 24: Exploded View

    All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Exploded View Packing Version: KG-689-0801-V1 Page 23 of 35...

  • Page 25: Adjustment

    All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO.,LTD Model:KG-689 Adjustment Description The radio can be adjusted by PC programming software or by keypad adjustment. Adjustment procedure as follows, Instrument: Radio Communication Test Set 1 set Scanner 1 set...
  • Page 26 All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Adjustment Description Adjustment Specification Item Factory set /Remarks Method Part 1-9 level On 5 level Squelch Sensitivity Entering MENU 2 0 is ON VOX Level Entering...
  • Page 27 All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Adjustment Description 4.Setting programmed software functions and parameter Item Edit Method Adjustment band Specification /Remarks Entering the page of ANI can be programmed programmed 3-5 software which has bits info codes See the user’s manual...

  • Page 28: Schematic

    All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Schematic L310 10uH C323 C321 E330 C331 C330 R336 L121 4.7uF 103P C336 T361 R317 C318 C319 VR318 104P R112 101T 2SC4617 180R 104P 102P CR311...

  • Page 29: Lcd Schematic

    All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 LCD Schematic LED701 Y-B LED R732 DTC114EE EXIT DOWN MEUN T723 R735 R733 510R 510R LAMP_B 点阵液晶屏幕 C723 102P T722 R734 LAMP_Y DTC114EE C722 102P U701...

  • Page 30: Lcd Board

    All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 LCD Board KG-689 LCD TOP KG-689 LCD BOTTOM White D701 150R 150R 510R 510R 102P 102P KG-689 LCD 10uF/10V 8.2K White White D704 D702 White D703...

  • Page 31: Layout Board

    All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Layout Board Layout Board View------Top C293 SW 873 R281 R469 T282 R814 R813 L158 C283 T281 T813 T1041 T1042 T1043 C292 C291 R818 R815 R817 R1159...
  • Page 32 All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Layout Board Layout Board View--------Bottom C298 L282 ANT111 R294 T291 C294 VR411 C156 C289 C287 T1123 R293 C297 L281 L154 C157 C155 R145 C284 C285 C286...

  • Page 33: Pcb Board

    All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 PCB Board PCB Board View----Top 4 73P T D-26 EA 5 .6K 1 0R 5 60R 5 60R CH1 UH 1 02P DTC114EE D TC 114EE...
  • Page 34 All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 PCB Board PCB Board View----Bottom A N T E N N A 1 04P C H 6 8 nH 2 S C 46 17 1 04P R D 91 1 .5P...

  • Page 35: Block Diagram

    All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Block Diagram DRIV E AM P FAML AMP ANT SW TX VCO D346 T35 0 T37 0 T37 5 D111 T11 3 T11 7 T12 8...

  • Page 36: Specification

    All manuals and user guides at all-guides.com QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Technology Specication Frequencyrange UHF:400-470MHz Memory Channels 128 channel + 1 group urgency alarm Voltage 7.4V Battery Life(90-5-5) 8 hours Working Temperature ℃ to +60 ℃ Antenna Impedance...

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