"service manual"
Contents
1. Adjacent Channel Selectivity Spurious Immunity InterModulation 255dB Blocking 255dB Receiver limited characteristics lt 3dB between 6dBuV and100dBuV Modulate Audio Distortion lt 10 Version KG 689 0801 V1 Page 35 of 352. SP611 Speaker SP R1206 MIC411 MIC MIC60 Version KG 689 0801 V1 MIC XU Page 21 of 35 QUANZHOU WOUXUN ELECTRONICS CO LTD Model KG 689 KG 689 LCD PARTS LIST Comment Footprint Quantity Designators IK oes Rm ras CI100NH L0603 1 721 20PIN JPZ20 JP701 wWIm ID OTP 65 DO L m m Version KG 689 0801 V1 Page 22 of 35 QUANZHOU WOUXUN ELECTRONICS CO LTD Model KG 689 Exploded Vie inside box ourside box plastic foam box Version KG 689 0801 V1 Page 23 of 35 QUANZHOU WOUXUN ELECTRONICS CO LTD Model KG 689 Adjustment Descri The radio can be adjusted by PC programming software or by keyp jjustment Adjustment procedure as follows Instrument Radio Communication Test Set et Scanner set 3A 12V Power Supply 1 set Digital Voltmeter 1 set Adjustment The PC programming software downl OUXUN website or ask for your WOUXUN dealer Install in your PC Connect the radio with PC by programming cable Select the right correspond port by edit software Turn the radio on Reading the administer code into the frequencymode Switch the transceiver to the frequencymode 1 VOC Test cification Item iti eQ Instrument Terminal O ks Receiver VC Digital 00 470MHz Voltmeter CV DC1 1 3 3 Digital 400 470MHz Voltmeter CV 6V Operation T
3. the DCS output f CPU U811 and output DCS signal be modulated by low pass When receive directly disposed by CUP after through detection frequency Version KG 689 0801 V1 Page 13 of 35 QUANZHOU WOUXUN ELECTRONICS CO LTD Model KG 689 PARTS LIST Designators Name specifications Footprint C211 Capacitance 0 3P B 0402 C246 C226 Capacitance 0 5P B 0402 C348 Capacitance 0 75P B 0402 C351 C358 368 C228 C230 Capacitance i 1P B 0402 C251 C213 C253 Capacitance 2P B 0402 C117 C337 C338 C216 Capacitance 3P B 0402 C231 C267 ca 4P B 0402 C219 Capacitance 4 3P B 0402 C334 C356 C217 C229 Capacitance 5P B 0402 C357 C371 C372 C377 C227 Capacitance 6 0402 C232 C116 Capacitance 7P C 0402 C252 C350 Capacitance 8P C 0402 C236 C321 C332 C811 Capacitance 10P C 0402 C349 Capacitance 12P 4 0402 C827 C826 Capacitance 20P J 0402 C289 Capacitance 33P J 0402 C312 Capacitance 51P di 0402 C1147 Capacitance 56P J 0402 C1086 C288 Capacitance 82P J 0402 C102 C224 C271 C287 C303 0329 C335 4008 J 0402 C336 C461 C841 C1138 C238 138 212 C902 C1051 C1084 C1088 C127 0125 C115 C121 C319 C328 C376 C410 Capacitance 402P 1 0402 C439 C322 C29 220 C1155 C222 C1143 6283 183 C176 C173 C872 C871 C837 C421 C419 C256 C1101 C1102 C1144 C1128 C233 C331 C901 C361 C364 C374 C451 C454 C1156 C440 C1154 C181 C174 C907 Capacitance 103P J 0402
4. then you can transmit through speaker 6 Side key 1 PF1 Programming function key press Lu key press to turn on accessorial function MONI key On this mode the speaker will be open gin force using to receive the signal on frequency If there is not any signal on frequency then you will hear a background noise or you wil receive audio frequency Speaker Mic faucet On this position you can connect with speaker Mic Version KG 689 0801 V1 Page 3 of 35 Model KG 689 QUANZHOU WOUXUN ELECTRONICS CO LTD Disassembly for rep 1 Pull down the button of the battery 0 both side at the same time then take off batte 2 Take off the knob and antenna 3 Take the earphone plug fro one seat 4 Open the Aluminum shell S then get Version KG 689 0801 V1 Page 4 of 35 QUANZHOU WOUXUN ELECTRONICS CO LTD Model KG 689 Circuit Descript 1 Frequency association Frequency association is shown in Chart 1 T 400 470MHz R 400 470MHz con D r 2nd O O 2 Receive system 1 RF amplifier i in Chart 2 2 The first mixer The receive signal and the first PLL uni birth to the first intermediate frequency filter flap signal will mix on the first mixer T233 then give except that all disturb signals will be unchained by crystal Version KG 689 0801 V1 Page 5 of 35 QUANZHOU WOUXUN ELECTRONI
5. voltage On the output terminal of U181 can get a reference voltage and check out voltage dispersion be direct ratio voltage signal This signal by reverse then as APC voltage This voltage be use control power discreteness power control feet and make transmit output level off As show in Chart 5 Version KG 689 0801 V1 Page 8 of 35 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 differentsinspectposture consult frequency According referenced frequency and comparable frequency value then bring 5 6 25 10 12 5 and 25KHz for step frequency value of PLL synthesizer According referenced frequency and comparable frequency discrepancy value the output correspond pulse voltage from the fifth t of U311 change it to direct current signal direct current signal by filter after through Charge Pump then bring lock voltage 2 VCO Goal frequency is make up of FETT355 and T350 directly produced by Rapids oscillator Lock controllable voltage and then modify oscillator frequency by D353 D352 D346 and D345 3 Lose lock detection circuit When is on lose lock onespulse will be plastic by R312 D312 C312 and R313
6. 0 10uF 10V 7368 S pd us 5 m 2 Ug CID fi 538 5 sme UD uns son 02P 38 850MHz 3r 5 81 Liu 38 850MHz E C eus a o Version KG 689 0801 V1 Page 33 of 35 Model KG 689 QUANZHOU WOUXUN ELECTRONICS CO LTD z E ELI EJ E E oe Page 34 of 35 Version KG 689 0801 V1 QUANZHOU WOUXUN ELECTRONICS CO LTD Technology Specica Model KG 689 Frequencyrange Memory Channels Voltage Battery Life 90 5 5 Working Temperature Antenna Impedance Frequency Stability 2 5ppm 30 C to 60 Transmit part Max Output Power SW Modulation Type FM F3E Frequency Error lt 2 5ppm Mixed radio heft S7uW Adjacent power 265dB Modulation Fidelity 3dB of 6db per o pre emphasis characteristics Max Modulation lt 5KHz 12mV 3mV Audio Distortion Signal to remaining output power rate Channel Inhibition
7. 100NH 0805 Inductance L1149 Line Inductance 19NH 2 0603 L230 L217 1223 1 Line Inductance 15NH 2 0805 L1161 Line Inductance 22NH 2 0805 L145 Line Inductance 220NH 5 0805 L237 Line Inductance 560NH 5 0805 L128 L236 Line Inductance 1uH 0805 L158 Module Inductance 1uH 3 296 1206 12811216 0 31 1 4 7 LC042125 L152 7 0 35 1 2 4T LC032319 High temperature without L154 L156 L215 0 35 1 4 4T LC032121 high loop L132 0 35 1 5 8T LC032334 L131 NC LC032319 D1 D813 Gr light GREEN 0603 D2 D814 Red light RED 0603 D345 D346 Diode A D ESC D352 D353 Diode B9 D ESC Version KG 689 0801 V1 Page 19 of 35 QUANZHOU WOUXUN ELECTRONICS CO LTD Model KG 689 PARTS LIST Designators Name specifications Footprint D211 D215 D111 D216 Diode HSC277 D ESC D326 Diode LL4148 D ESC D362 Diode MA2S11 D ESC D133 D146 Diode BA592 D USC D283 D282 Diode BB910 D USC D572 D571 Dio NC D ESC D416 Dynatron DAN222 D ESM D417 T442 Dynatro 155372 D USM T361 T291 T433 T430 Dynatron 2SC4617 T ESM T363 Dynatron 2SJ243 T ESM T842 Dynatron 2SK1824 T ESM T471 T438 Dynatron DTA114EE T ESM T202 T301 Dynatron DTA114YE T ESM 212 1813 NUV 114 5 T451 T103 T823 Dynatron 5B1 T TSM T113 Dynatron R25 T TSM T280 T282 T366 Dynatron UMC T USV T414 T443 Dynatron 15541981 T USM T253 T313 Dynatron 256421
8. 18 Resistance 5 6R J 0402 R462 R366 R367 R373 R469 Resistance 10R J 0402 R121 Resistance 22R J 0402 R124 R116 R332 Resistance 47R J 0402 R234 R1085 R357 R364 R371 R376 R221 R224 R283 R282 R274 R256 Resistance 100R J 0402 R417 R350 R461 R511 sistance 150R J 0402 R317 Resistance 180R J 0402 R233 R444 Resistance 330R J 0402 R1553 Resistance 470R J 0402 R237 R1070 R338 R253 R814 R813 Resistance 560R J 0402 Version KG 689 0801 V1 Page 16 of 35 QUANZHOU WOUXUN ELECTRONICS CO LTD Model KG 689 PARTS LIST Designators Name specifications Footprint R114 R117 R119 R375 Resistance 680R J 0402 R1053 R1122 R203 R848 R323 R303 R336 R453 R280 R875 R272 R870 Resistance 1K J 0402 R843 R416 R473 R270 R340 R422 Resistance 1 2K J 0402 R349 R446 R845 R422 Resistance 1 5K J 0402 R255 R187 eel 2K J 0402 R836 R452 R120 Resista 2 2K J 0402 R326 R377 R381 R293 R268 Bec ance 3 3K 002 R380 R87 R852 R844 R1159 R815 R818 R817 R236 R1152 R212 R111 R112 Resistance 4 7K J 0402 R361 102 R281 R426 R414 R440 Resistance 5 6K J 0402 R846 R322 Resistance 6 8K J 0402 R425 Resistance 8 2K J 0402 R1137 R571 R1121 R342 R439 R442 R284 R266 R842 R520 R515 R433 Resistance 10K J 0402 R430 R1160 R184 R177 R1049 R823 Resistance 15K J 0402 R418 Resistance 18K J 0402 R324 8291 R512 R421 Resistance 22K J 0402 R441 R133 R618 R853 Resistance 27K J 0402 R423
9. 5 T USM T337 T370 T375 Dynatron 2SC4226 T USM T117 Dynatron 2SC3357 T SOT89 T463 Dynatron 2SK1588 T SOT89 T271 T525 Dynatron NC IC70 Integrate Circuit 8870 SSOP 20 U281 Integrate Circuit 7088 U SOP16 U411 Integrate Circuit RC4558 U SOP8 U853 Integrate Circuit 24C64 U SOP8 U460 Integrate Circuit TA7368 U SSOP10 U261 Integrate Circuit TA31136F U SSOP16 U311 Integrate Circuit LMX2332 U SSOP20 U170 Integrate Circuit NJM2904V U SSOP8 IC264 Integrate Circuit NC 264 T220 T233 ouble Tube U72 T TSQ T350 T355 gle Tube K52 T TSM T130 RD07 T PD54008 T128 Impel Tube RD01 T SOT89 U906 U1 5V Steady Press POOU U TSV Version KG 689 0801 V1 Page 20 of 35 QUANZHOU WOUXUN ELECTRONICS CO LTD Model KG 689 PARTS LIST Designators Name nd 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 FL UM CR311 Crystal 19 2MHz FX DS0507 CR826 Crys 32 768MHz FX DS7325 FL1036 Patch Chinhaware Crystal 3 58MHz ZTA ZTTCC FL1030 Patch Chinaware Crystal NC ZTA ZITCC VR411 Potentiometers RD91 S RD810S ANT111 Antenna seat ANTENNA ANT KXO1 JK451 Earphone Seat 02 5 ST104 JK ST 104 JK411 Earphone Seat 03 5 ST 301 JK ST 301 JP811 Line Seat JP20 JP 20 2 SW870 SW872 SW873 Touch switch TD 26EA S TD 26 SW87 Touch switch TC 3121 S TC 3121
10. 53 C355 C152 C142 Capacitance 0 5P B 0603 C154 C156 C158 Capacitance 1 5P B 0603 C1038 C1037 Capacitance 2P B 0603 C153 Capacitance 3P B 0603 C157 Capacit nce 4P B 0603 C1150 C155 Capacitance 6 0603 150 Capacitance 7P C 0603 C1029 C143 Capacitance 8P C 0603 C215 pacitance 9P C 0603 C122 Capasitance 10P C 0603 C1168 Capacitance 22P J 0603 C141 Capacitance 24P J 0603 C139 Capacitance 27P J 0603 Version KG 689 0801 V1 Page 15 of 35 QUANZHOU WOUXUN ELECTRONICS CO LTD Model KG 689 PARTS LIST Designators Name specifications Footprint C144 Capacitance 33P J 0603 C132 C129 Capacitance 102P J 0603 C276 C275 Capacitance 104P J 0603 C835 Capacitance 105P J 0603 C124 C151 Capacitance 470P J 0603 C1010 C131 C140 C1148 Capacitance NC 0603 C1163 cai 5P B 0805 C1050 C147 Capacitance 104P J 0805 Laminated E341 0 1UF 0805 capacitance Laminated E340 2 2UF 16V 1096 0805 Capacitance Laminated E146 E454 1UF 16V 10 0805 Capacitance Laminated E332 E423 4 7UF 16V 1096 0805 Capacitance Laminated E280 E180 E801 E274 E330 10UF 16V 10 0805 Capacitance Laminated E1140 E912 E910 E1035 220 16 3 20 0805 Capacitance Laminated E1134 E1141 NC 0805 Capacitance Laminated E908 22UF 1206 Capacitance R1550 R341 R1025 R1082 R454 R460 R437 R467 81106 R822 R436 R415 Resistance OR J 0402 R262 R1
11. 9 0801 Vl Page 25 of 35 Page 25 of 35 QUANZHOU WOUXUN ELECTRONICS CO LTD Model KG 689 Adjustment Descri 4 Setting programmed software functions and parameter Item Edit Method Adjustment ban Specification Remarks Entering the page of ANI can b programmed programmed 3 ANI software which has bits infoscodes See the user s manual available ANI Entering the DTMF set page See the user s signal DTMF Which has available Version KG 689 0801 V1 Page 26 of 35 QUANZHOU WOUXUN ELECTRONICS CO LTD Model KG 689 Schematic Teu UNES E d js bes nite TE T a EZ w a os ees oo e o Wr mm Version KG 689 0801 V1 Page 27 of 35 QUANZHOU WOUXUN ELECTRONICS CO LTD Model KG 689 LCD Schematic R2 T po 7 RBI 22K RIS UK R26 7K R730 sk 1721 ti E T p V SB D702 70703 C72 LUN DIO 2 010 2 J mo eus I R737 R736 510R 510R 0721 N4148 RES 1 1703 c er DICII4EE K pee D22 RIDO 144148 1K Version KG 689 0801 V1 Page 28 of 35 QUANZHOU WOUXUN ELECTRONI
12. C903 C905 C852 C820 C802 C512 C402 C274 C255 C1103 C1103 C133 C1054 C1130 C137 C221 C1127 C1023 C1056 C101 C455 C318 C330 C339 C366 C291 C182 C846 C843 C825 C514 C513 C417 C412 C403 C401 C272 C270 C263 C301 SO IUE C1094 C1039 C373 C438 C442 C445 C1552 C103 C281 C294 C297 C298 C279 C1045 C821 Capacitance 105P J 0402 Version KG 689 0801 V1 Page 14 of 35 QUANZHOU WOUXUN ELECTRONICS CO LTD Model KG 689 PARTS LIST Designators Name nd specifications Footprint C1081 C284 Capacitance 180P J 0402 C278 Capacitance 200P J 0402 C870 C424 C265 C264 C465 Capacitance 220P J 0402 C295 Capacitance 222P J 0402 C324 C460 C422 C420 Capacitance 223P J 0402 C1124 C273 Capacitance 224P J 0402 C521 C213 EL 273P J 0402 C290 Capacitance 330P J 0402 C286 C285 C432 C430 Capacitance 332P J 0402 C1047 C282 Capacitance 333P J 0402 C325 C327 Capacitance 390P J 0402 C1100 C1131 C126 C1129 C135 C136 C234 C235 C145 C128 C111 C112 C118 C120 C362 C1142 C292 C180 C175 470P K 0402 C906 C860 C863 C413 C411 C268 C363 C365 C367 C370 C375 C452 C453 C223 C225 C1046 C293 C431 C840 C426 C418 C446 Capacitance 473P K 0402 C462 Capacitance 474P K 0402 C433 C429 Capacitance 680P K 0402 C1099 C1145 C1551 01009 C1021 C352 C1018 1040 61146 C1014 C237 C572 C569 She cj C1013 C847 Capacitance NC 0402 C845 C269 C26 260 C1020 C113 C3
13. CS 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 Through 450K filter except that all disturb signals will be unchained then be blew up and inspected Audio frequency amplifier The audio frequency signal comes from inspected filter and aggravated then input to MCU U811 then through adjust potentiometer blow up by 0460 get the audio frequency power contact with MIC via T463 Squelch circuit and signal intensity lis Check by 0261 Output yawp signal then put it into CPU 0811 and deal with it by the 25 feet interior According to the electricity level signal which MCU one side it can control SP MUTE APX and AFC to complete to control audio frequency output circuit The level of CPU inside control system is from 1 to 9 grades it can program by software or by keyboard On the other side it can control the signal strong list of LCD screen SPMUTE Chart 3 3 Transmit system 1 Speaker amplifier As show in Chart 4 audio frequency signal comes from MIC will be aggravated then limited blow up by U411 A all distortion audio frequency signals will be unchained by adjacent filter which makes up with U411 B caused by limited blow up Modulate circuit The signal comes from speaker amplifi
14. CS CO LTD Model KG 689 LCD Board KG 689 LCD TOP 689 LCD BOTTOM KG 689 LCD Version KG 689 0801 V1 Page 29 of 33 QUANZHOU WOUXUN ELECTRONICS CO LTD Layout Board View Layout Board LLL Sw872 SW870 FL261 L451 JK451 Model KG 689 Version KG 689 0801 V1 Page 30 of 35 QUANZHOU WOUXUN ELECTRONICS CO LTD Version KG 689 0801 V1 Layout Board Layout Board View Bottom EJ E z Ey 5 1131 EA E es 3 E L216 0460 x m mm 5 E L217 m m EI Emo Eg 2 aj EA T220 Si E3E3 EA E3 iB L229 4E362 E EES LENO EUpgES D211 i ci CR311 1 ES Eaj m aD 11 ES m E1035 FL252 Ee Model KG 689 Page 31 of 35 QUANZHOU WOUXUN ELECTRONICS CO LTD Model KG 689 PCB Board PCB Board View TD 26EA ST104 TC3121 NJM2904V ST 301 TD 26EA TD 26EA JP20 rook 24664 Version KG 689 0801 V1 Page 32 of 35 QUANZHOU WOUXUN ELECTRONICS CO LTD PCB Board PCB Board View Bottom Model KG 689 Ll m j ANTENNA Li m RD91 mi 0 31 1 4 7T 2 8 22
15. Resistance 30K J 0402 R1022 R465 R432 R429 R427 R424 R431 R472 Resistance 33K J 0402 R321 Resistance 39K J 0402 R857 R450 R126 R115 R374 R101 R320 R220 R222 R522 R510 R186 R872 R829 R828 R435 R411 8864 8868 lance R182 R876 R878 R1052 R1055 Resistance 51K J 0402 R464 R294 Resistance 56K J 0402 R125 R185 Resistance 68K J 0402 R824 82K J 0402 R337 R345 R370 R825 R513 Res A 100K J 0402 R323 Resistance 120K J 0402 R313 R292 R874 Resistance 150K J 0402 Version KG 689 0801 V1 Page 17 of 35 QUANZHOU WOUXUN ELECTRONICS CO LTD Model KG 689 PARTS LIST Designators Name specifications Footprint R265 R264 R181 Resistance 180K J 0402 R524 R254 R841 R519 R514 Resistance 220K J 0402 R443 Resistance 270K J 0402 R1126 R182 Resistance 330K J 0402 R1158 Resistance 470K J 0402 R420 Resistance 680K J 0402 R517 ow 750K J 0402 8404 8428 Resistan 1 8M J 0402 R1017 R572 R572 R1016 R1019 R1098 R113 R372 R468 R273 R521 R516 Resistance NC 0402 R180 R176 R275 R1153 Resistance 10R J 0603 R131 Resistance 47R J 0603 R145 R146 Resistance 270R J 0603 R132 Resistance 47K J 0603 R834 Resistance 56K J 0603 R170 R175 Resistance 150K J 0603 R1011 R123 Resistance NC 0603 R1157 R810 R141 Resistance OR J 0805 R1151 Resistance 10K J 0805 R1044 Resistance 100K J 0805 R1091 R1093 Resistance 0 33R J 1206 R901 Resistan
16. Service Manual Model KG 689 Frequency 400 470MHz ven KG 480 1 QUANZHOU WOUXUN ELECTRONICS CO LTD QUANZHOU WOUXUN ELECTRONICS CO LTD Model KG 689 KG 689 transceiver ser anual Contents FattodUC HOT ka s sa ue c ed MEL Personal safety c aso eo t CHO PG ORE rad Disassembly for repair Circuit description rv HE SERA FON E PR HIE Packing sz o Adjustment veces rene us uu ceca E eU Lm NM EE LCD Boatd ee eame dud AR d e Layout PCB Board Block diagram Specification 5 Version KG 689 0801 V1 Page 1 of 35 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 This manual almost correct and complete if there is something oversight WOUXUN company keeps the right of explanation And we also keep the right of change the design and the specification Personal Safety Do not transmit if you don t check all transmitting pins or one of the opening pins hasn t connect to the correspond port
17. UN ELECTRONICS CO LTD Model KG 689 Circuit Description 8 Select power circuit Power offset circuit as following TX POWER Power voltage of power amplifier SV Output 5V by U906 regulator circuit used for reset i circuitpower VDD of 0511 0853 D711 08111 gt 5M Output 5M by U911 regulator circuit used for CPU ower VDD T301 be controlled by the 40th side of CPU 811 5C output 5C by 5V used for PLL circuit VCO circuit and POWER CR311 power circuit VDD T202 be controlled by the 27th Side of CPU 811 5R output 5R by 5V used for U261 1233 1253 T220 power VDD T103 be controlled by the 26th of CPU 811 output 5T 5T by 5V used for T113 T117 T430 433 7171 0411 U170 and D146 D216 switch transmit and or receive transform switch T451 and T453 be control y the 72th side of CPU P 7368 I output 7368 power used for U460 power Version KG 689 0801 V1 gt T45 1 128 9 0 7368 0811 72th side 0811 38 side gt 1301 gt 5C U811 40 side lt 1203 p gt 5R U811 27 side ST 19 U811 54 side 0811 60 side T812 Chart 8 Page 12 of 35 QUANZHOU WOUXUN ELECTRONICS CO LTD Model KG 689 Circuit Descript 9 CTCSS DCS circuit DCS signal output CTCSS audio frequency signal from the from the 29th When transmit CTCSS
18. ce OR 1206 R1125 Resistance 10R 1206 PR311 PR858 Resistance 1K gt x4 RP 1206 PR856 Resistance 4 7K X4 RP 1206 VR318 VR413 Adjustable Resistance 50K RV1208 E1090 E435 E417 Ta Capacitance 2 2UF A 16V 1096 EIA3216 E907 E844 E905 Ta Capacitance 10UF A 16V 1096 EIA3126 E461 E362 Ta Capacitance 10UF A 10V EIA3126 E463 Ta Capacitance 100UF C 10 1096 EIA7343 L130 High _ frequenc fold ind Saee con L232 111711139 L337 L374 1820 EO fold 18NH 0603 L113 L370 Hig frequency fold 22NH 0603 Inductance L282 L283 High frequenc fold maj ich Version KG 689 0801 V1 Page 18 of 35 QUANZHOU WOUXUN ELECTRONICS CO LTD Model KG 689 PARTS LIST Designators Name specifications Footprint High f fol L354 L357 L366 L412 ig requency old 100NH 0603 Inductance L331 L345 L352 High f fold 331 L345 L35 ig requency 120NH 0603 Inductance 11167 L364 High fi fold Uu ki 220NH O603 Inductance L121 L871 L870 L451 L f fold o rei e 400NH 0603 Inducta L L f fold 380 OW requency 270NH 0803 Inductance L314 L f fold NM MELLE E TTE 0603 Inductance L311 L f fold 3 OW requency uH 0603 Inductance L L f fold 350 OW requency 2 2uH 0603 Inductance L310 L L f fold 310 L363 OW requency god 0603 Inductance L341 Low frequency fold 6 809 0603 Inductance L371 NC 0603 L127 L1 L f fol 35 OW requency old
19. er modulated by adjust potentiometer VR382 then modulating changeable reactance by varactors tube 0348 Version KG 689 0801 V1 Page 6 of 35 QUANZHOU WOUXUN ELECTRONICS CO LTD Model KG 689 Circuit Descriptio 4 U4IIB a gt p mi MODE N T r 7 W N D442 VOX i SAVE T43 sv Chart 4 2 VOX circuit Blow up audio frequency electricity level signal Blow up drive The goal signal produce after invigorative up T117 and blow up the power about 4W 5 Version KG 689 0801 V1 Page 7 of 35 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 0146 0145 0216 Start during transmitting and stop during receiving switch transmitting System and receiving system Auto power control circuit use for get a reliable transmit power and transmit control output This circuit check out power discreteness end terminal current exhaust and control transmit output Two reference voltage from U170 one is give birth to the pa use for adjust the power output AD1 give birth to the other one is get the R171 R173 two terminal and end terminal exhaust current be direct ratio check out
20. est Specification Condition of Test frequency minal Test data Remarks Instrument band Setting Connect Power Level set with Sensitivity supply 118dbm Radio SINAD voltage MOD 400 470 mmunication 222dbm DC7 4V FREQ Test Set AF 1KHz GENOUTUT LEVEL by SPK 3KH Version K G 689 0801 V1 Page 24 of 35 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 OFF MENU 7 Ois OFF Receive Entering 50 groups OFF CTCSS MENU 10 Receive Entering DCS MENU 11 105 groups OFF 3 Transmitter Adjustment Specification Item Factory set Remarks Method Part Transmit Power Entering 10 levels On 10 level MENU 4 Overtime prompt Entering Has 15 600 seconds On 90 seconds MENU 6 each level 15s difference WIDE Modulate Entering SKHz Transmit W amp N MENU 8 WIDE NARROW Modulate 2 5KHz Transmit cita Entering 50 groups Full modulate Same to W amp N MENU 10 band 0 5 0 75K Hz Transmit DCS Entering 105groups Full modulate Same to W amp N MENU 11 band 0 5 0 75K Hz WIDE WIDE Modulate Modulate MOD FREQ 5KHz Speaker MIC 5KHz 1KHz NARROW NARROW LEVEL Modulate Modulate 3KH 2 5KHz 2 5KHz WIDE DTMF 1 3KHz Modulate 2 5 3 5KHz NARROW Modulate 1 5 2KHz Version KG 68
21. m Switch off power when you are on flammability gas condition Do not take it apart or it repaired by a nonprofessional m Turn off the radio before of detonator and blasting area In order to avoid the problem arising by Electromagnetic interference and or Electromagnetic Compatibility please turn off the radio where there has a mark Turn LS such as hospital or other health care place and enplane Version KG 689 0801 V1 Page 2 of 35 QUANZHOU WOUXUN ELECTRONICS CO LTD Model KG 689 Disassembly for repair FIJ 1 Power Voice Switch Turning by clockwise to switch on radio Turning to bottom by counter clockwise to switch off radio Turning by clockwise to turn up voice Gounter clockwise to turn down 2 LED ifdicator light A light A light Is corresponding to the A frequency range Red lightrmeans radio tranSmitting signal green light means radio receiving signal then red light and green light flicker alternate means someone transmits urgency alarm LED indicator light B light B light is corresponding to the B frequency range light means radio transmitting signal green light means radio receiving signal then red light and green light flicker alternate means someone transmits urgency alarm Top key PF2 Programming function key press press this key to turn on accessorial function 5 PTT switch Press this switch
22. then add to LD side of PLL tenth LD side and the voltage of LD side will be rose CPU will control transmitting and receiving by detecting the voltage of LD side 4 Digital control circuit Conformation of Keyboardrcircuit Directly input the signal come From the LT CPU U811 Chart 6 Version KG 689 0801 V1 Page 9 of 35 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 081 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 Detect battery voltage circuit Input SB to the 23rd side A D switch port of 0841 after be disparted and after disposal by CUP drive LCD battery level indicator Floodlight and LCD circuit Floodlight and LCD directly be controlled on of CPU port circuit Chart7 Version KG 689 0801 V1 Page 10 of 35 QUANZHOU WOUXUN ELECTRONICS CO LTD Model KG 689 Circuit Descript 7 Battery save circuit One receive state the squelch turn off if not press any key d the power circuit will enter save x H 1 58212 TIA 8212 Version KG 689 0801 V1 Page 11 of 35 QUANZHOU WOUX
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