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- QUANZHOU WOUXUN
- Two-Way Radio
- KG-689
- Service Manual
QUANZHOU WOUXUN KG-689 Service Manual
Summary of KG-689
Page 1
Service manual model: kg-689 frequency: 136-174mhz version: kg-689-0801-v1 quanzhou wouxun electronics co., ltd wouxun wouxun wouxun wouxun.
Page 2: Contents
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 1 of 33 kg-689 transceiver service manual contents introduction……………………………………………………………………………………2 personal safety……………………………………………………………………. ………….2 disassembly for repair......……………………………………………………............................
Page 3: Introduction
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 2 of 33 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 ...
Page 4: Disassembly For Repair
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 3 of 33 disassembly for repair wouxun wouxun wouxun wouxun.
Page 5: Disassembly For Repair
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 4 of 33 disassembly for repair wouxun wouxun wouxun wouxun.
Page 6: Circuit Description
Quanzhou wouxun electronics co., ltd model: kg-689 circuit description 1. Frequency association frequency association is shown in chart 1. Chart 1 af amp mix.If.Det 38.850mhz 1st mx rf amp ant sw pa amp tx amp (2) (1) pll vco mic amp mic sp mcf 450khz cf 2nd lo lpf ant t:136-174mhz r:136-174mhz 2. R...
Page 7: Circuit Description
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 6 of 33 apo beep/ctcss arx an sql rxi 14 9 u261 t46 3 u460 t45 1 sb t453 afc sp mute 15 20 72 71 t45 5 sp chart 3 u811 mcu circuit description (3). Intermediate amplifier as chart 3 show, the first intermediate frequency...
Page 8: Circuit Description
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 7 of 33 3 2 5 4 1 ptt/rx232 mic 5c t43 0 t43 3 t41 4 mode 5t 5t 5t t47 1 w/n u411a u411b mic t44 3 t43 8 d4 42 5v save vox chart 4 circuit description (2). Vox circuit blow up audio frequency signal comes from the speake...
Page 9: Circuit Description
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 8 of 33 batt p-tx t171 t181 5t t181 t181 t181 rx ant txin apc d146 d215 d216 chart 5 circuit description 4. Select transmit and receive circuit as shown in chart 5. Output transmit signal will pass transmit and/or receiv...
Page 10: Circuit Description
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 9 of 33 5c t337 t355 t350 t375 t370 d352 d353 d346 d345 d348 mod tx/rx pll data 10 11 12 13 3 5 20 5c 66 65 64 63 cpu u811 5c cr311 19.2mhz pll u311 图 6 circuit description 5. Pll circuit (1) pll 19.25mhz reference oscil...
Page 11: Circuit Description
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 10 of 33 data cs r/w u711 ht1621 lcd d4 42 d4 42 5v clk data u853 eeprom 5v ptt moni 46 61 47 48 49 50 55 56 57 58 59 t82 3 5v 37 5m 54 60 sb 51 52 53 23 38 图 7 circuit description 6. Reset and reserve circuit when conne...
Page 12: Circuit Description
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 11 of 33 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 c...
Page 13: Circuit Description
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 12 of 33 circuit description 8. Select power circuit power offset circuit as following: tx power power voltage of power amplifier 5v output 5v by u906 regulator circuit, used for reset circuit power vdd of u511 u853 d711...
Page 14: Circuit Description
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 13 of 33 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 mo...
Page 15: Parts List
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 14 of 33 parts list designators name and specifications footprint c211 capacitance 0.5p c0402 c358 c351 c348 capacitance 1p c0402 c213 c226 capacitance 1.5p c0402 c251 capacitance 2p c0402 c219 c228 c338 capacitance 3p c...
Page 16: Parts List
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 15 of 33 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...
Page 17: Parts List
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 16 of 33 parts list designators name and specifications footprint c161 resistance 91r r0402 c163 resistance 150r r0402 c164 r1550 resistance 180r r0402 c165 r145 resistance 270r r0603 c166 r444 resistance 330r r0402 c167...
Page 18: Parts List
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 17 of 33 parts list designators name and specifications footprint c196 resistance 150r r0603 c197 resistance 47k r0603 c198 resistance nc r0603 c199 resistance 0r r0805 c200 resistance 0r r1206 c196 resistance 150r r0603...
Page 19: Parts List
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 18 of 33 parts list designators name and specifications footprint c223 low-frequency multi-layer inductance ci560nh l0603 c224 nc l0603 c225 low-frequency multi-layer inductance ci100nh l0805 c226 low-frequency multi-lay...
Page 20: Parts List
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 19 of 33 parts list designators name and specifications footprint c259 impel tube rd01 t-sot89 c260 t350 single valve k52 t-tsm c261 t220 bigrid valve u72 t-tsq c262 power tube 2sk3476 t-pd c263 5v s poou u-tsv c264 inte...
Page 21: Kg-689 Lcd Parts List
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 20 of 33 kg-689 lcd parts list comment footprint quantity designators 102p c0603 2 c722 c723 103p c0603 1 c725 104p c0603 1 c721 1.8k r0402 1 r730 2.2k r0402 4 r726 r727 r728 r731 100r r0603 1 r725 510r r0603 4 r736 r732...
Page 22: Exploded View
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 21 of 33 exploded view packing wouxun wouxun wouxun wouxun.
Page 23: Adjustment Description
Wouxun wouxun wouxunwouxun 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 dig...
Page 24: Adjustment Description
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 23 of 33 adjustment description adjustment item method part factory set specification /remarks squelch sensitivity entering menu 2 1-9 level 0 is on on 5 level vox level entering menu 7 0-10 level 0 is off off receive ct...
Page 25: Adjustment Description
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 24 of 33 adjustment description 4.Setting programmed software functions and parameter item edit method adjustment band specification /remarks ani entering the page of programmed software which has available ani ani can b...
Page 26: Schematic
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 25 of 33 schematic r381 r-1 r436 r-1 vr431 100k e436 4.7uf c834 105p r835 22k r836 0r vr382 100k e382 1uf pr856 47k 5v e463 100uf l131 4t c377 2p r414 22k r262 10k t233 3sk299(u72) l229 4t l223 4t l230 4t l232 15nh r233 ...
Page 27: Lcd Schematic
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 26 of 33 lcd schematic title number revision size b s3 9 s23 s24 s25 s26 s27 s28 s29 s30 s31 s32 s33 s34 s35 s36 s37 s38 s4 0 c1 c2 c3 c4 c5 c6 c7 c8 c9 c1 0 c1 1 c1 2 c1 3 c1 4 c1 5 c1 6 k_ d3 k_ d2 k_ d1 k_ d0 s2 1 s2 ...
Page 28: Lcd Board
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 27 of 33 lcd board kg-689 lcd top kg-689 lcd bottom k g -6 69/ 679 lc d k x sn 070 417 d t c 1 14e e 8.2k + c i10 0nh + + 102p 510r 1k 1k 1k 1k 102p l l4148 l l4148 d t c 114 e e dtc 1 1 4 e e 150r 150r 510r nc 1 04p 10u...
Page 29: Layout Board
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 28 of 33 layout board layout board view------top r 109 1 r1 09 2 r1 0 93 e1090 t1042 t1041 t1043 d2 + d1 + l820 r404 c1050 c1047 c 1099 c835 c1045 r1049 r1048 c1046 r1044 r518 sw 87 0 s w 872 vr431 r878 r524 r 1151 c2 76...
Page 30: Layout Board
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 29 of 33 layout board layout board view--------bottom cr311 c1 5 51 l1161 c2 78 l1 35 e463 + c297 fl1036 r901 c1 1 38 t443 c133 c126 r1055 r1052 r1053 c1054 c301 c1130 r1018 c1040 e9 12 c1129 c1128 u1 c1038 e1 14 1 r1025...
Page 31: Pcb Board
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 30 of 33 pcb board pcb board view-----top 0. 3 6 r 0. 3 6 r 0. 3 6 r 2.2uf dt c114ee nc d t c114ee nc + g + c h100nh 1m8 104p 103p nc 105p 105p 82k 18k 473p 100k 27k td -2 6 e a td -2 6 e a 50k 47k 220k 10 k 10 4p 10 4p ...
Page 32: Pcb Board
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 31 of 33 pcb board pcb board view------bottom 19.2mhz nc ch85nh¤? ╚ ? 200 p c i1 00nh 100uf + 104p 3.58mhz ╠ ? ┤╔ nc 1 02p iss 4181 104p 470p 51k 51k 1k 105p 104p 104p nc nc 22uf 470p 103p poou 18p nc 0r nc nc 8870 nc 22...
Page 33: Block Diagram
Quanzhou wouxun electronics co., ltd model: kg-689 version: kg-689-0801-v1 page 32 of 33 block diagram u711 ht1621 lcd meun up dow n e xi t 1 2 3 * 4 5 6 0 9 # sb lamp1 lamp2 5v l cd cs l cd r/ w k1 k2 k3 k4 k5 kd0 kd1 kd2 kd3 7 8 pf1 pf2 u853 24c64 ck kd0 u811 mcu clk kd0 u511 voice sw870 moni sw87...
Page 34: Technology Specication
Wouxun wouxun wouxun wouxun 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 -30 to +60 ℃ ℃ antenna impedance 50 ohms frequency sta...