Related Manuals for QUANZHOU WOUXUN KG-689
Summary of Contents for QUANZHOU WOUXUN KG-689
- Page 1 Service Manual Model: KG-689 Frequency: 136-174MHz Version: KG-689-0801-V1 QUANZHOU WOUXUN ELECTRONICS CO., LTD...
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Page 2: Table Of Contents
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 Parts list………………………………………………………………………………………..14 LCD part list..........................20 Exploded view...……………………………………………………………………………..21 Packing……………………………………………………………………………....21 Adjustment……………………………………………………………………………………..22 Schematic…………………………………………………………………………....25 LCD Schematic...........................26 LCD Board..........................27 Layout Board………………………………………………………………………....28 PCB Board……………………………………………………………………………………...30 Block digaram……………………………………………………………….………………….32 Specification…………………………………………………………………………………….33... -
Page 3: Introduction
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
QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Disassembly for repair Version: KG-689-0801-V1 Page 3 of 33... - Page 5 QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Disassembly for repair Version: KG-689-0801-V1 Page 4 of 33...
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Page 6: Circuit Description
QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Circuit Description 1. Frequency association Frequency association is shown in Chart 1. T:136-174MHz R:136-174MHz 450KHz 38.850MHz 1ST MX MIX.IF.DET AF AMP ANT SW RF AMP 2nd LO PLL VCO MIC AMP PA AMP... - Page 7 QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Circuit Description (3). Intermediate amplifier As Chart 3 show, 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 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 electricity level signal by D442, then put it into the CPU (U811) the 21 feet to manage.
- Page 9 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.
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Page 10: Pll Circuit
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 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 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 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 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.
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Page 15: Parts List
QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 PARTS LIST Designators Name and specifications Footprint C211 Capacitance 0.5P C0402 C358 C351 C348 Capacitance C0402 C213 C226 Capacitance 1.5P C0402 C251 Capacitance C0402 C219 C228 C338 Capacitance C0402 C217 C230 Capacitance C0402... - Page 16 QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 PARTS LIST Designators Name and specifications Footprint C129 Capacitance 200P C0402 C130 Capacitance 222P C0402 C131 C324 Capacitance 223P C0402 C132 Capacitance 224P C0402 C133 C286 Capacitance 332P C0402 C134 Capacitance 333P C0402...
- Page 17 QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 PARTS LIST Designators Name and specifications Footprint C161 Resistance R0402 C163 Resistance 150R R0402 C164 R1550 Resistance 180R R0402 C165 R145 Resistance 270R R0603 C166 R444 Resistance 330R R0402 C167 Resistance 470R R0402...
- Page 18 QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 PARTS LIST Designators Name and specifications Footprint C196 Resistance 150R R0603 C197 Resistance R0603 C198 Resistance R0603 C199 Resistance R0805 C200 Resistance R1206 C196 Resistance 150R R0603 C201 Magnetic bead R1206 C202 Exclusion Resistance...
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Page 19: Parts List
QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 PARTS LIST Designators Name and specifications Footprint Low-frequency multi-layer C223 CI560nH L0603 inductance C224 L0603 Low-frequency multi-layer C225 CI100nH L0805 inductance Low-frequency multi-layer C226 CI560nH L0805 inductance C227 L223 L229 Winding Inductance CH68NH... - Page 20 QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 PARTS LIST Designators Name and specifications Footprint C259 Impel Tube RD01 T-SOT89 C260 T350 Single valve T-TSM C261 T220 Bigrid Valve T-TSQ C262 Power Tube 2SK3476 T-PD C263 5V S POOU U-TSV C264...
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Page 21: Lcd Part List
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 R731 100R R0603 R725 510R R0603 R736... -
Page 22: Exploded View
QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Exploded view Packing Version: KG-689-0801-V1 Page 21 of 33... -
Page 23: Adjustment
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 3A/12V Power Supply 1 set Digital Voltmeter... - Page 24 QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Adjustment Description Adjustment Specification Item Factory set /Remarks Method Part Squelch Sensitivity Entering 1-9 level On 5 level MENU 2 0 is ON VOX Level Entering 0-10 level MENU 7 0 is OFF...
- Page 25 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...
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Page 26: Schematic
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 L363 C337 C133 19.2MHz C126 R312 R311... -
Page 27: Lcd Schematic
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 R729 R721 K_D3 1.2K 4.7K R731 E721 2.2K... -
Page 28: Lcd Board
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 White D705 Version: KG-689-0801-V1 Page 27 of 33... -
Page 29: Layout Board
QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Layout Board Layout Board View------Top C293 SW873 R281 R469 T282 R814 R813 L158 C283 T281 T813 T1042 T1043 T1041 C292 C291 R818 R817 R815 R 1159 C1165 R282 R283 T280 C465 R174 R171... - Page 30 QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Layout Board Layout Board View--------Bottom C298 L282 ANT111 R294 T291 C294 VR411 C289 C287 C156 T1123 R293 C297 L281 L154 C157 C155 R145 C284 C285 C286 R146 C151 E463 L145 C150 R901 C152...
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Page 31: Pcb Board
QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 PCB Board PCB Board View-----Top 473P T D-2 6EA 5.6K 560R 560R 102P DT C114EE DT C 114EE D T C114EE 470P 104P 4.7K 4 .7K 4 .7K 330P 100R 100R U MC4... - Page 32 QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 PCB Board PCB Board View------Bottom ANTENNA 104P CH68nH 2SC4617 104P RD91 100P 3.3K 104P 0.31*1.4*7T 0.31*1.7*4T 270R 270R 27P 332P 332P 680P 100uF CH220NH 0.31*1.4*7T 104P BA592 2SK1588 HSC277 470P 102P 0.4*1.0*3T 104P...
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Page 33: Block Digaram
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 D146 D345 T33 7 D353 D3 48... -
Page 34: Specification
QUANZHOU WOUXUN ELECTRONICS CO., LTD Model: KG-689 Technology Specication Frequencyrange UHF:136-174MHz Memory Channels 128 channel + 1 group urgency alarm Voltage 7.4V Battery Life(90-5-5) 8 hours Working Temperature to +60 ℃ ℃ Antenna Impedance 50 ohms Frequency Stability ±2.5ppm(-30 to +60 ) ℃...
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