Kenwood TK-3102G, Service Manual

Page 1: ...MPONENTS DESCRIPTION 11 PARTS LIST 12 EXPLODED VIEW 19 PACKING 20 ADJUSTMENT 21 CONTENTS PC BOARD TX RX UNIT X57 6030 XX 26 SCHEMATIC DIAGRAM 30 BLOCK DIAGRAM 34 LEVEL DIAGRAM 36 OPTIONAL ACCESSORIES KNB 14 Ni Cd BATTERY 37 KNB 15A Ni Cd BATTERY 37 KNB 20N Ni MH BATTERY 37 SPECIFICATIONS BACK COVER Knob CH K29 5278 03 Knob VOL K29 5255 03 Whip antenna T90 1039 25 Plastic cabinet assy A02 4049 03 ...

Page 2: ... kit number of which it is a part and a sufficient description of the re quired component for proper identification GENERAL PERSONAL SAFETY The following precautions are recommended for personal safety DO NOT transmit until all RF connectors are verified se cure and any open connectors are properly terminated SHUT OFF and DO NOT operate this equipment near electrical blasting caps or in an explosi...

Page 3: ...en data is received by the transceiver the green LED lights Notes The data stored in the personal computer must match the Model Name when it is written into the EEPROM Do not press the PTT key during data transmission or reception Change the transceiver to PC mode then attach the in terface cable 4 3 KPG 22 KPG 22A Description PC programming interface cable Option The KPG 22 22A is required to int...

Page 4: ...KCT 53U PC Fig 1 4 5 Programming Software Description The KPG 55D ver 4 00 or later is the programming software for the transceiver supplied on a CD ROM This software runs under Windows 2000 XP or Vista 32 bit on a PC 4 6 Programming with PC If data is transferred to the transceiver from a PC with the KPG 55D ver 4 00 or later the data for each set can be modified Data can be programmed into the E...

Page 5: ...400 i 3 Remove the solder from the antenna terminal using a soldering iron then lift the unit off o 4 Remove the waterproof packing 0 and cushion 1 from the antenna connector Note The cushion cannot be reused Affix a new cush ion when you remove the cushion 5 Remove the two screws 2 and remove the antenna con nector Note When reassembling the unit in the chassis be sure to solder the antenna termi...

Page 6: ...rst intermediate frequency 1st IF signal The first IF signal is then fed through two monolithic crystal filters MCFs XF201 to further remove spurious signals 3 IF Amplifier The first IF signal is amplified by Q201 and then enters IC200 FM processing IC The signal is heterodyned again with a second local oscillator signal within IC200 to create a 450kHz second IF signal The second IF signal is then...

Page 7: ... the speaker output sounds according to the squelch results 3 PLL Frequency Synthesizer The PLL circuit generates the first local oscillator signal for reception and the RF signal for transmission 1 PLL The frequency step of the PLL circuit is 5 or 6 25kHz A 12 8MHz reference oscillator signal is divided at IC1 by a fixed counter to produce the 5 or 6 25kHz reference fre quency The voltage control...

Page 8: ... generated by Q4 in transmit mode and Q3 in receive mode The oscillator frequency is controlled by applying the VCO control voltage obtained from the phase comparator to the varactor diodes D2 and D4 in transmit mode and D1 and D3 in receive mode The T R pin is set high in receive mode causing Q5 and Q7 to turn Q4 off and turn Q3 on The T R pin is set low in trans mit mode The outputs from Q3 and ...

Page 9: ...microprocessor An APC voltage proportional to the difference between the sensed voltage and the reference voltage appears at the output of IC100 1 2 This output voltage controls the gate of the FET power amplifier which keeps the transmitter output power constant The transmitter output power can be varied by the microprocessor which in turn changes the reference voltage and hence the output power ...

Page 10: ...ow 42 WNTC O MAX Dev control Narrow H 43 46 NC l NC 47 SDA l O EEPROM data line 48 SCL O EEPROM clock line 49 UL I PLL unlock detection pin L unlock 50 54 NC l NC 55 DT O Common data output 56 CK O Common clock output 57 NC O NC 58 LE O PLL IC enable H latches 59 60 NC O NC Pin No Port Name I O Function 61 5MC O Control of power supply 5M for everything except the microprocessor and EEPROM L Power...

Page 11: ... switch Q110 Transistor Temperature protection switch Q200 Transistor DC switch Q201 Transistor IF AMP Q202 FET Mixer Q203 FET Mixer RF AMP Q300 Transistor Active filter Q302 FET Audio mute switch Q303 306 Transistor DC switch Q307 FET Audio mute switch Q400 402 Transistor DC switch Q403 Transistor Beat shift switch Q404 Transistor DC switch Q405 FET DC switch Q406 408 Transistor DC switch Q500 FE...

Page 12: ...80 150 220 330 470 750 s 4OLERANCE ORE THAN P Code C D G J K M X Z P No code 0 25 0 5 2 5 10 20 40 80 100 More than 10μF 10 50 20 20 0 Less than 4 7μF 10 75 s 6OLTAGE RATING 2nd word A B C D E F G H J K V 1st word 0 1 0 1 25 1 6 2 0 2 5 3 15 4 0 5 0 6 3 8 0 1 10 12 5 16 20 25 31 5 40 50 63 80 35 2 100 125 160 200 250 315 400 500 630 800 3 1000 1250 1600 2000 2500 2150 4000 5000 6300 8000 s HIP CAP...

Page 13: ...2B N83 2005 48 PAN HEAD TAPTITE SCREW 47 2D N99 0396 15 SCREW SET ACCESSORY 49 2B R31 0647 05 VARIABLE RESISTOR 51 2B S60 0424 25 ROTARY SWITCH 53 1A T07 0369 15 SPEAKER 54 2D T90 1039 25 WHIP ANTENNA ACCESSORY 56 1C W08 0479 25 AC ADAPTER AC 120V ACCESSORY K K2 58 1C W08 0558 35 AC ADAPTER AC 230V ACCESSORY M M2 59 1C W08 0598 15 CHARGER ACCESSORY 60 2C W09 0940 25 BATTERY ASSY ACCESSORY D400 B30...

Page 14: ... 10UF K C157 CK73GB1H471K CHIP C 470PF K C165 CK73GB1H471K CHIP C 470PF K C200 CS77AA0J100M CHIP TNTL 10UF 6 3WV C201 CK73GB1H103K CHIP C 0 010UF K C202 CC73GCH1H270J CHIP C 27PF J C203 CK73GB1H471K CHIP C 470PF K C204 CK73GB1H472K CHIP C 4700PF K C205 206 CC73GCH1H331J CHIP C 330PF J C207 CK73GB1C104K CHIP C 0 10UF K C208 CC73GCH1H270J CHIP C 27PF J C209 CK73GB1C104K CHIP C 0 10UF K C210 CK73GB1H...

Page 15: ...09 CK73GB1H332K CHIP C 3300PF K C510 CC73GCH1E681J CHIP C 680PF J C511 CK73GB1C473K CHIP C 0 047UF K C512 CK73GB1H332K CHIP C 3300PF K C513 CC73GCH1E681J CHIP C 680PF J C514 CK73GB1C473K CHIP C 0 047UF K C515 CK73GB1H103K CHIP C 0 010UF K C516 CC73GCH1H100D CHIP C 10PF D C517 CK73GB1H471K CHIP C 470PF K C518 CK73GB1E223J CHIP C 0 022UF J C519 CS77AA0J4R7M CHIP TNTL 4 7UF 6 3WV C520 CK73GB1E223J CH...

Page 16: ...RK73GB2A151J CHIP R 150 J 1 10W K2 M2 R25 26 RK73GB2A101J CHIP R 100 J 1 10W K M R26 RK73GB2A221J CHIP R 220 J 1 10W K2 M2 R27 RK73GB2A331J CHIP R 330 J 1 10W K M R27 RK73GB2A471J CHIP R 470 J 1 10W K2 M2 R28 RK73GB2A220J CHIP R 22 J 1 10W K M R28 RK73GB2A820J CHIP R 82 J 1 10W K2 M2 R29 RK73GB2A000J CHIP R 0 0 J 1 10W R30 RK73GB2A124J CHIP R 120K J 1 10W R31 RK73GB2A101J CHIP R 100 J 1 10W R32 RK...

Page 17: ... R 0 0 J 1 10W R328 RK73GB2A102J CHIP R 1 0K J 1 10W R329 RK73GB2A000J CHIP R 0 0 J 1 10W R330 RK73GB2A473J CHIP R 47K J 1 10W R331 RK73GB2A222J CHIP R 2 2K J 1 10W R332 RK73GB2A151J CHIP R 150 J 1 10W R333 RK73GB2A474J CHIP R 470K J 1 10W R334 RK73GB2A100J CHIP R 10 J 1 10W K M R334 RK73GB2A150J CHIP R 15 J 1 10W K2 M2 R335 RK73GB2A563J CHIP R 56K J 1 10W R336 RK73GB2A333J CHIP R 33K J 1 10W R338...

Page 18: ...ODE D102 103 HSC277 DIODE D200 HSC277 DIODE D201 204 HVC350B VARIABLE CAPACITANCE DIODE K M D201 204 HVC355B VARIABLE CAPACITANCE DIODE K2 M2 D300 DA221 DIODE D500 1SS372F DIODE D501 DAN222 DIODE D502 GN1G DIODE IC1 MB15A02PFV2E1 MOS IC IC100 NJM2904V ZB MOS IC IC200 TA31136FNG MOS IC IC300 NJM2902V ZB MOS IC IC301 NJM2904V ZB MOS IC IC302 TA7368FG MOS IC IC400 PST9140NR MOS IC IC401 AT24C08A10SU1...

Page 19: ...43 37 44 41 13 9 33 45 C B B 704 703 Fx2 TX RX unit Fx3 Fx3 A F A Dx2 E 702 701 700 Fx3 9 53 24 23 25 39 15 10 2 16 8 17 51 49 34 7 27 18 37 A N09 2438 05 B N14 0581 44 C N14 0804 24 D M2 6 x 6 N30 2606 48 E M2 x 3 N79 2030 48 F M2 x 5 N83 2005 48 19 21 22 12 X57 106 X57 101 X57 105 X57 102 X57 103 X57 104 ...

Page 20: ...Instruction manual B62 2103 00 4 Cap SP MIC B09 0351 03 47 Screw set N99 0396 15 713 54 Whip antenna T90 1039 25 36 Belt clip J29 0734 05 715 30 Protection bag H25 0085 04 711 712 714 35 SP MIC holder J21 4493 04 60 Battery assy W09 0940 25 31 Protection bag H25 2012 04 Parts with the exploded numbers larger than 700 are not supplied ...

Page 21: ...ge 50Hz to 5kHz or more Output 0 to 1V 10 Distortion Meter Capability 3 or less at 1kHz Input Level 50mV to 10Vrms 11 Spectrum Analyzer Measuring Range DC to 1GHz or more 12 Tracking Generator Center Frequency 50kHz to 600MHz Output Voltage 100mV or more 13 8Ω Dummy Load Approx 8Ω 3W 14 Regulated Power Supply 5V to 10V approx 3A Useful if ammeter equipped The following parts are required for adjus...

Page 22: ...e power supply Whenever the transmitter is tuned the unit must be con nected to a suitable dummy load i e power meter The speaker output connector must be terminated with a 8Ω dummy load and connected to an AC voltmeter and an audio distortion meter or a SINAD measurement meter at all times during tuning Adjustment Frequency TEST CH K M K2 M2 RX MHz TX MHz RX MHz TX MHz Low 450 10000 450 00000 470...

Page 23: ...rts Method 1 Frequency adjust 1 TEST CH Center PTT ON Frequency counter TX RX ANT Program ming software KPG 55D Windows version ver 4 00 or later Center frequency 50Hz Note After replacing the TCXO X1 align frequency 2 DQT QT Balance 1 TEST CH Center PTT ON Power meter Deviation meter Oscillo scope TX RX VR500 Adjust the demodu lation wave into a square wave 3 RF Power 1 TEST CH Low BATT terminal ...

Page 24: ...z 6 QT Deviation Wide 1 TEST CH High QT 67 0Hz LPF 3kHz HPF OFF PTT ON Power meter Deviation meter Oscillo scope AG AF VTVM ANT Program ming software KPG 55D Windows version ver 4 00 or later 0 75kHz 0 03kHz Narrow 2 TEST CH High PTT ON 0 35kHz 0 03kHz 7 DQT Deviation Wide 1 TEST CH High DQT D023N LPF 3kHz HPF OFF PTT ON 0 65kHz 0 03kHz Narrow 2 TEST CH High PTT ON 0 30kHz 0 03kHz 8 Battery Warnin...

Page 25: ...3kHz SSG Oscillo scope AF VTVM Distortion meter ANT SP MIC connec tor L212 Adjust to the maxi mum AF level Narrow 2 TEST CH Center SSG output 53dBm 501µV SSG MOD 1 5kHz 3 Sensitivity Wide 1 TEST CH Low Center High SSG output 116dBm 0 35µV SSG MOD 3kHz Check 12dB SINAD or more Narrow 2 TEST CH Center SSG output 116dBm 0 35µV SSG MOD 1 5kHz 4 Squelch Tight 1 TEST CH Center MONI ON Program ming softw...

Page 26: ... R506 R507 R508 R512 TH501 R543 C508 C510 C515 VR501 Q403 L400 L402 C407 C410 C414 C416 C417 R502 C503 R540 R1 Q502 R515 R516 R517 R519 C511 C512 C513 R333 R334 R335 C334 C335 1 3 3 4 1 5 4 5 1 25 26 50 51 75 76 100 AF O G I 4 5 1 8 BAL CV DEV 5 6 1 10 J79 0171 09 TK 3102G PC BOARD TX RX UNIT X57 6030 XX 10 K M 11 K2 M2 Component side view J79 0171 09 Ref No Address IC100 4O IC302 4I IC400 5D IC40...

Page 27: ...534 R537 R539 C506 C512 C513 C514 C516 C518 C519 C525 C526 C527 D501 IC500 Q106 Q108 Q109 R133 R134 R137 R138 R333 R334 R141 R335 R142 R336 R143 R144 R145 R152 R153 C141 C335 C337 C165 CN400 R421 R423 R430 R431 C425 L502 R536 C530 C531 Q103 Q104 L118 R119 R122 R124 R130 R131 R132 R140 C112 C139 G D S S G D G D S 4 5 1 8 PTT 5MS MIC AFG SP SP SP 4 5 1 8 ANT G S D B TXD SB 5 6 1 10 TX RX UNIT X57 60...

Page 28: ...05 D502 R234 TC202 TC203 C235 Q102 Q105 C260 D202 L101 L102 L104 L119 R106 R108 R110 R111 R112 R113 R117 R120 R121 R126 R128 C106 TH102 C107 C109 C110 C111 C113 C120 C123 C156 C157 Q203 L209 L19 C118 R28 Q7 R30 S403 MONI S402 PTT J500 EXT SP MIC PTT 5MS MIC AFG SP TXD C C B B E C C B B E C C B B E D G G G D D S S 4 3 1 5 G S D G S D B G S D C E G1 S TK 3102G PC BOARD TX RX UNIT X57 6030 XX 10 K M ...

Page 29: ...D300 L200 L202 L203 L206 L208 L214 IC300 IC301 X1 CP1 C10 R200 R203 R204 R207 R208 C30 C52 R213 R214 R218 R225 R234 R237 C222 C224 C226 C229 C232 C259 C265 L101 R106 R108 C106 C107 C156 C157 Q203 L207 C31 C41 C46 C49 Q100 R100 R101 R104 C101 C103 L19 C105 R24 Q4 Q6 Q7 R30 C23 XF201 C26 C27 C35 R222 R239 C51 C201 C54 C215 C218 C219 TC201 C238 C1 C4 C5 C7 D7 R102 R105 R303 CF200 L2 R317 L5 R324 L11 ...

Page 30: ...0 C28 33p C16 68p C26 120p C51 68p R406 2 2k R29 0 R13 R502 82k TH500 3k R402 220 Q401 DTC114EE R403 180 D401 B30 2157 05 R417 10 D400 B30 2156 05 R410 8 2k C402 470p R426 8 2k C406 470p VSS VIN VOUT 1 VC1 VC2 TIBI TI BUSY BATT VCCN APC BEEP TO PTT TXD RXD SELF MONI 25 26 ENC3 ENC2 ENC1 ENC0 INT0 RST XIN XOUT VSS SHIFT PABC WNRC WNTC SDA SCL UL 50 51 DT CK LE 5MC AFCO RX GLED RLED SAVE MUTE 5RC 5T...

Page 31: ...C321 0 033u J R324 5 6k C316 0 01u J R326 5 6k D C320 0 033u J C300 8200p R314 470k D R315 390k D C306 0 047u R303 3 3k C309 0 01u J R312 12k R306 120k R317 270k D R309 470k C304 10u6 3 R308 10k R305 18k R328 1k R338 47k R307 47k R508 D6 MA2S111 F 1 2 3 4 5 6 7 9 10 11 12 13 14 TO TX RX UNIT X57 6030 XX RX TO VOLUME WNTC QT DQT TO AF AMP TP3 7p R26 6p B C34 2 2k R27 10p D 13p J 330 R25 100 33p J 1...

Page 32: ...11 IFoUT 12 RSSI 13 N DET 14 N REC 15 GND 16 MIXIN C258 0 1u C217 0 01u C212 33p R226 560 D501 DAN222 R530 100 D500 1SS372F C523 2 2u4 2SC4919 Q503 R532 820 R524 51k C516 10p C518 0 022u J 1 2 3 4 V 5 6 7 8 V C517 470p R526 15k D R527 15k C519 4 7u6 3 R542 0 R529 18k C521 1000p C522 0 1u C520 0 022u J R528 750k R525 1 5k C261 0 1u C262 0 1u C264 22p R235 R237 R236 G1 D S G2 C265 R238 2 2k L200 C26...

Page 33: ...p R539 0 R536 1k C530 220p C337 100u6 3 C531 220p L502 2SK1588 AZ Q307 C336 0 01u C235 C532 470p R138 150k D R137 150k D R141 47k R143 0 R145 180k R146 100k R339 8 2k R154 270 L109 220n R227 0 C155 1 5p B L114 3T C153 C150 L113 4T L112 4T C147 1p B L110 4T D102 HSC277 C144 2p D103 HSC277 C142 3p B R139 270 C148 C136 C138 100p C145 470p R147 0 L118 1u C143 470p R123 0 C149 1p B C151 1 5p B C154 1p ...

Page 34: ...4 2SC4228 R44 Q6 2SC5108 Y F Q3 2SK508NV K52 Q10 2SC5 Y Q2 2SC5108 Y F Q403 DTC 144EE 2 M Q5 Q7 2SJ243 A UMC4N IC403 38268MCA060GU IC401 CAT24WC08 JI18 IC402 R3111N 451C F Q405 UPA 672T A IC404 XC6201 P502PR Q1 2SC4649 N P IC200 TA31136FNG D300 DA221 NJM2904V ZB BLOCK DIAGRAM ...

Page 35: ...04 V ZB Q104 Q103 UFMMT717 2SK1824 A XF201 MCF D101 HVU131 E Q8 D6 2SC4617 S MA2S111 F Q201 2SC4649 N P Q202 3SK318 Q203 3SK318 Q307 2SK1588 AZ Q302 2SK1824 A D300 DA221 IC302 TA7368FG D502 GN1G D500 1SS372F Q305 2SA1362 F GR Q500 2SK1824 A Q502 2SC4617 S Q501 2SC4617 S NJM2902V ZB NJM2904V ZB IC500 NJM2100V ZB L208 L209 L210 L211 D201 D202 D204 ...

Page 36: ...l shown on an AF VTVM when the AF output has been ad justed to 0 63Vrms with the AF vol Measure the audio frequency on an AF VTVM and radio frequency on a RF VTVM at high impedance Set the MIC input to obtain a modulation factor of 60 with the transmit frequency at center and a modulation frequency of 1kHz RF Center frequency IF 38 85MHz AF 1kHz ANT L112 C145 L208 5R Q203 L203 L214 Q202 R239 XF201...

Page 37: ... Dimensions 60 8W x 110 8H x 20 3D mm projections included Charger and charging time KSC 15 normal charger approximately 8 hours KSC 16 rapid charger approximately 2 hours KSC 24 rapid charger approximately 1 hour Weight 210g Specifications Voltage 7 2V 1 2V x 6 Capacity 1600mAh Dimensions 63 8W x 110 8H x 17 2D mm projections included Charger and charging time KSC 24 rapid charger approximately 8...

Page 38: ...ulle Cedex GENERAL Frequency range 450 470MHz K M 470 490MHz K2 M2 Channels 16 channels Channel spacing Wide 25kHz Narrow 12 5kHz PLL channel stepping 5kHz 6 25kHz Battery voltage 7 5V DC 20 Battery life 5 5 90 duty cycle with KNB 15A 1100mAh battery More than 8 hours Operating temperature range 30 C 60 C 22 F 140 F Frequency stability 0 00025 30 C 60 C Antenna impedance 50Ω Channel frequency spre...

Page 39: ...525 R526 R527 R529 R532 R533 R534 R537 R539 C506 C511 C512 C513 C514 C516 C518 C519 C525 C526 C527 D501 IC500 Q106 Q108 Q109 R133 R134 R137 R138 R333 R334 R141 R335 R142 R336 R143 R144 R145 R152 R153 C334 C141 C335 C337 C165 CN400 R421 R423 R430 R431 C425 L502 R536 C530 C531 Q103 Q104 L118 R119 R122 R124 R130 R131 R132 R140 C112 C139 1 3 3 4 1 5 4 5 1 25 26 50 51 75 76 100 AF O G I 4 5 1 8 BAL CV ...

Page 40: ...218 R225 R234 R237 TC202 TC203 C222 C224 C226 C229 C232 C235 C259 Q102 Q105 C260 D202 C265 L101 L102 L104 L119 R106 R108 R110 R111 R112 R113 R117 R120 R121 R126 R128 C106 TH102 C107 C109 C110 C111 C113 C120 C123 C156 C157 Q203 L207 L209 C31 C41 C46 C49 Q100 R100 R101 R104 C101 C103 L19 C105 C118 R24 R28 Q4 Q6 Q7 R30 C23 XF201 C26 C27 C35 R222 R239 C51 C201 C54 C215 C218 C219 TC201 C238 C1 C4 C5 C7...

Page 41: ...3 3k C309 0 01u J R312 12k R306 120k R317 270k D R309 470k C304 10u6 3 R308 10k R305 18k R328 1k R338 47k R307 47k R339 8 2k R502 82k TH500 3k R154 270 L109 220n R227 0 C155 1 5p B L114 3T C153 C150 L113 4T L112 4T C147 1p B L110 4T D102 HSC277 C144 2p D103 HSC277 C142 3p B R139 270 C148 C136 C138 100p C145 470p R147 0 L118 1u C143 470p R123 0 C149 1p B C151 1 5p B C154 1p B R508 D501 DAN222 R530 ...

Page 42: ...FMMT717 2SK1824 A XF201 MCF D101 HVU131 E Q8 D6 2SC4617 S MA2S111 F Q5 Q7 2SJ243 A UMC4N IC403 38268MCA060GU IC401 CAT24WC08 JI18 IC402 R3111N 451C F Q405 UPA 672T A IC404 XC6201 P502PR Q1 2SC4649 N P Q201 2SC4649 N P Q202 3SK318 Q203 3SK318 IC200 TA31136FNG Q307 2SK1588 AZ Q302 2SK1824 A D300 DA221 IC302 TA7368FG D502 GN1G D500 1SS372F Q305 2SA1362 F GR Q500 2SK1824 A Q502 2SC4617 S Q501 2SC4617 ...