Kenwood ProTalk tk-3501 Service Manual Download Page 10

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TK-3501

COMPONENTS DESCRIPTION

Ref. No.

Part Name

Description

IC1

PLL system

IC200

FM IF system

IC300

DAC

IC301

LSD buffer

IC302

AF power AMP (EXT SP)

IC303

AF filter

IC304

MIC AMP

IC305

QT/DQT filter

IC400

MCU

IC401

EEPROM

IC500

Voltage detector/RESET

IC501

Voltage regulator/5V

IC503

Voltage regulator/5V

IC601

AF power AMP (INT SP)

IC620

AF filter

Transistor

DC switch

Transistor

TX/RX RF switch

Transistor

Ripple filter

FET

VCO

Transistor

RF buffer AMP

Transistor

RF AMP

Transistor

Voltage regulator/3V

Q101

FET

Drive AMP

Q102

FET

Final AMP

Q103

Transistor

Voltage discharge switch

Q201

Transistor

Doubler

Q202

Transistor

IF AMP

Q203

FET

Mixer

Q204

FET

RF AMP

Q300

Transistor

DC switch

Q301

Transistor

Q302,306 control

Q302

FET

Mute swtch

Q303

FET

DC switch

Q304

Transistor

DC switch

Q306

FET

Mute switch

Q401

Transistor

DC switch

Q402

Transistor

DC switch

Q403

FET

DC switch

Q500

FET

DC switch

Q501

FET

DC switch

Q502

Transistor

DC switch

Q601

Transistor

Q602 control

Q602

Transistor

DC switch

Ref. No.

Part Name

Description

Q603

Transistor

DC switch

Q604

Transistor

DC switch

Diode

Current steering

Variable capaci-
tance diode

Frequency control/ VCO

Variable capaci-
tance diode

Frequency control/ VCO

Diode

TX/RX RF switch

Variable capaci-
tance diode

Frequency control/ VCO

Variable capaci-
tance diode

Modulator /TX VCO

Diode

Ripple filter

Diode

Current steering

D100

Diode

TX/RX RF switch

D102

Diode

ANT switch

D103

Diode

ANT switch

D200

Diode

TX/RX RF switch

D301

Diode

Current steering

D400

LED

LED/green

D401

LED

LED/red

D402

Diode

VCO speed up

D500

Diode

Protect

D501

Diode

Current steering

TX-RX unit (X57-8992-70)

Summary of Contents for ProTalk tk-3501

Page 1: ...ASSEMBLY FOR REPAIR 4 CIRCUIT DESCRIPTION 6 SEMICONDUCTOR DATA 9 COMPONENTS DESCRIPTION 10 PARTS LIST 11 EXPLODED VIEW 17 ADJUSTMENT 18 PC BOARD TX RX UNIT X57 8992 70 22 BLOCK DIAGRAM 26 LEVEL DIAGRAM 28 SPECIFICATIONS 29 APPENDIX SCHEMATIC DIAGRAM X57 899 Cover Antenna F07 1979 02 Button knob Side K29 9640 03 Knob PTT K29 9639 03 Plastic cabinet assy A02 4253 03 Knob Volume K29 9487 03 Knob Sele...

Page 2: ...ed techni cian only SERVICE This transceiver is designed for easy servicing Refer to the schematic diagrams printed circuit board views and alignment procedures contained within Document Copyrights Copyright 2014 by JVC KENWOOD Corporation All rights reserved No part of this manual may be reproduced translated distributed or transmitted in any form or by any means electronic mechanical photocopyin...

Page 3: ...g mode PC mode Note The data stored in the personal computer must match Model Name and Model Type when it is written into EE PROM Do not press the PTT key during data transmission or reception 3 3 KPG 22A Description PC programming interface cable Option The KPG 22A is required to interface the transceiver with the computer It has a circuit in its D sub connector KPG 22A 9 pin case that converts t...

Page 4: ... the Case Assembly from the Chassis 1 Remove the two knobs a 2 Remove the two screws b 3 Expand the right and left sides of the bottom of the case assembly Iift the chassis and remove it from the case assembly c a a b b c 4 Taking care not to cut the speaker lead d open the chassis and case assembly Note Solder the speaker wire back in its original position if you have removed it BRN GRN d DISASSE...

Page 5: ...r from the antenna terminal using a soldering iron then lift the unit off i Note When reassembling the unit in the chassis be sure to solder the antenna terminal 3 Removing the Rear Panel 1 Raise the rear panel on the chassis j j e f g h i h Antenna terminal 4 Removing the Antenna element When you remove an antenna element do not give a damage to an antenna element as shown in the figure ...

Page 6: ...sulting signal passes through a BPF and goes to the mixer 2 2 First Mixer The signal from the front end is mixed with the first local oscillator signal generated in the PLL circuit by Q203 to pro duce a first IF frequency of 38 85 MHz The resulting signal passes through the XF200 MCF to cut the adjacent spurious and provide the optimum charac teristics such as adjacent frequency selectivity TX RX ...

Page 7: ...rough an volume control VR500 and is routed to an audio power amplifier IC302 IC601 where it is amplified and output to the speaker To output sounds from the speaker IC400 sends a high signal to the SPMUT line and turns IC400 on through Q300 Q301 Q302 and Q306 3 Transmitter System 3 1 Microphone Amplifier Circuit The signal from microphone amplified by IC301 and goes through mute switch IC300 IC30...

Page 8: ...ling squelch on off via the DC voltage from the squelch circuit 5 Controlling the audio mute circuit via the decode data input 6 Transmitting tone and encode data Note The EEPROM stores tuning data Deviation Squelch etc Realign the transceiver after replacing the EEPROM 6 Signaling Circuit 6 1 Encode Low speed data QT DQT Low speed data is output from pin 49 LSDO of the MCU IC400 The signal passes...

Page 9: ...detection 30 LED_R O LED red control 31 LED_G O LED green control 32 SP_MUTE O Power control for EXT AF AMP 33 NC O NC 34 5TC O 5T control 35 5CC O 5C control SAVE 36 5MSC O 5MS control 37 DACLD O Load enable for DAC IC 38 PTTI I PTT key input 39 PFKEY I PF key input 40 INT I INT signal input 41 VDCSW O Voltage discharge switch 42 WID NAR O Reserve 43 RXD I Serial data input FPU 44 TXD O Serial da...

Page 10: ... Q301 Transistor Q302 306 control Q302 FET Mute swtch Q303 FET DC switch Q304 Transistor DC switch Q306 FET Mute switch Q401 Transistor DC switch Q402 Transistor DC switch Q403 FET DC switch Q500 FET DC switch Q501 FET DC switch Q502 Transistor DC switch Q601 Transistor Q602 control Q602 Transistor DC switch Ref No Part Name Description Q603 Transistor DC switch Q604 Transistor DC switch D1 Diode ...

Page 11: ...ESSORY E B5A 0021 00 INSTRUCTION MANUAL ACCESSORY T J29 0751 05 BELT CLIP ACCESSORY N35 3005 43 BINDING HEAD SCREW ACCESSORY W08 1246 25 AC ADAPTER ACCESSORY E W08 1249 45 CHARGER ACCESSORY W08 1251 25 AC ADAPTER ACCESSORY T W09 1073 25 BATTERY ASSY ACCESSORY TK 3501 TX RX UNIT X57 8992 70 IC1 MB15E03SL E1 MOS IC IC200 TA31136FNG MOS IC IC300 R2A20178NP DAC IC IC301 BA2904FVM MOS IC IC302 TA7368FG...

Page 12: ... 1000PF K C221 CK73HB1C103K CHIP C 0 010UF K C222 CC73HCH1H080B CHIP C 8 0PF B C223 CC73HCH1H080B CHIP C 8 0PF B C224 CK73HB1C103K CHIP C 0 010UF K C225 CC73HCH1H060B CHIP C 6 0PF B C226 CK73HBB1H471K CHIP C 470PF K C227 CK73HB1C103K CHIP C 0 010UF K E TK 3501 E T TK 3501 T D8 DA2J101 DIODE D100 1SS390 DIODE D102 RN262CS DIODE D103 RN262CS DIODE D200 1SS390 DIODE D301 RB706F 40 DIODE D380 EDZV6 8B...

Page 13: ...K73HB1A184K CHIP C 0 18UF K C329 CK73HBB1C333K CHIP C 0 033UF K C330 CK73HBB1H102K CHIP C 1000PF K C332 CK73HB1C103K CHIP C 0 010UF K TX RX UNIT X57 8992 70 C333 CK73HBB1H102K CHIP C 1000PF K C334 CK73HBB1C473K CHIP C 0 047UF K C335 CK73HB1A184K CHIP C 0 18UF K C336 CK73HB1C103K CHIP C 0 010UF K C337 CK73HB1A184K CHIP C 0 18UF K C338 CK73HB1H391K CHIP C 390PF K C339 CK73HBB1C473K CHIP C 0 047UF K ...

Page 14: ...93J CHIP R 39K J 1 16W R119 RK73GB2A391J CHIP R 390 J 1 10W R120 RK73HB1J331J CHIP R 330 J 1 16W R121 RK73EB2ER39K CHIP R 0 39 K 1 4W R122 RK73EB2ER39K CHIP R 0 39 K 1 4W R136 RK73HB1J182J CHIP R 1 8K J 1 16W R200 RK73HB1J103J CHIP R 10K J 1 16W R201 RK73HB1J470J CHIP R 47 J 1 16W R202 RK73HB1J561J CHIP R 560 J 1 16W R203 RK73HB1J124J CHIP R 120K J 1 16W R204 RK73GB2A271J CHIP R 270 J 1 10W R205 R...

Page 15: ...502 RK73HB1J334J CHIP R 330K J 1 16W R505 RK73HB1J473J CHIP R 47K J 1 16W R508 RK73HB1J473J CHIP R 47K J 1 16W R509 RK73HB1J104J CHIP R 100K J 1 16W R511 RK73HB1J334J CHIP R 330K J 1 16W R601 RK73HB1J393J CHIP R 39K J 1 16W R602 RK73HB1J103J CHIP R 10K J 1 16W R603 RK73HB1J183J CHIP R 18K J 1 16W R604 RK73HB1J473J CHIP R 47K J 1 16W R605 RK73HB1J103J CHIP R 10K J 1 16W R606 RK73HB1J391J CHIP R 390...

Page 16: ... RESONATOR 11 0592MHZ XF200 L71 0669 05 MCF 38 85MHZ VR500 2B R31 0684 05 VARIABLE RESISTOR S400 2B S70 0414 05 TACT SWITCH PTT S401 S70 0514 05 TACT SWITCH SIDE S402 2B S6A 0002 00 ROTARY SWITCH SELECTOR TH100 B57331V2104J THERMISTOR 100K TH260 B57331V2104J THERMISTOR 100K 101 2A J30 1308 04 SPACER MIC TX RX UNIT X57 8992 70 E TK 3501 E T TK 3501 T If a part reference number is listed in a shaded...

Page 17: ... 26 27 28 21 7 6 1 20 Bx13 TX RX unit 18 A 25 12 3 17 19 22 5 15 8 VR500 S402 4 700 701 J300 J301 2 A N30 2606 48 B N83 2005 48 101 MIC300 CF200 CD200 S400 A 10 11x4 If a part reference number is listed in a box on the exploded view of the PCB that part does not come with the PCB These parts must be ordered separately ...

Page 18: ...ding 5 Oscilloscope DC through 30MHz 6 High Sensitivity Frequency Counter Frequency Range 10Hz to 1000MHz Frequency Stability 0 2ppm or less 7 DC Ammeter 5A 8 AF Volt Meter AF VM Frequency Range 50Hz to 10kHz Voltage Range 1mV to 10V 9 Audio Generator AG Frequency Range 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 Analy...

Page 19: ... 151 4Hz 5 QT 210 7Hz QT 210 7Hz 6 QT 254 1Hz QT 254 1Hz 7 DQT D023N DQT D023N 8 DQT D754I DQT D754I Preparations for Tuning the Transceiver Before attempting to tune the transceiver connect the unit to a suitable 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 a...

Page 20: ...item Center BATT terminal voltage 7 5V Press Transmit button Power meter Ammeter FPU 0 85W 0 05W 0 5A or less 3 DQT Balance 1 Adj item Center Signaling Square Wave Deviation meter filter LPF 3kHz HPF OFF Press Transmit button Power meter Deviation meter Oscilloscope AG AF VM TX RX ANT SP MIC connector FPU Make the modulation wave into square waves 5 Maximum Deviation 1 Adj item Center AG 1kHz 150m...

Page 21: ... adjustments simple It is not necessary to adjust the fixed values for the DQT DEV QT DEV and MIC sensitivity Receiver Section Item Condition Measurement Adjustment Specifications Remarks Test equipment Unit Terminal Unit Parts Method 1 Sensitivity Check 1 Adj item Center SSG output 116dBm 0 35μV SSG DEV 1 5kHz SSG DVM Oscilloscope AF VM TX RX ANT SP MIC connector Check 12dB SINAD or more 2 Squelc...

Page 22: ...CN508 R332 R334 R344 C309 R347 C311 C124 R355 R356 R357 R358 C321 C322 C516 C323 C330 C332 C333 R397 R375 R376 C340 C342 C349 R386 C158 C352 CN1 CV R328 R323 C336 CN2 C313 Q304 Q305 Q502 IC400 IC401 D301 IC301 IC304 CF200 C525 C195 C360 CN506 C361 R389 Q403 S S D D G G C621 R620 C624 C620 IC620 R455 TK 3501 PC BOARD TX RX UNIT X57 8992 70 Component side view J79 0423 09 Ref No Address IC300 6I IC3...

Page 23: ...R121 R122 C124 R406 R407 C409 R303 R308 R309 R310 R312 CN510 CN302 CN303 CN502 CN503 CN504 CN505 CN507 C604 R336 CN512 CN511 C301 R342 C306 C500 C503 C506 C507 R350 R351 C318 C511 C324 C522 C335 R379 C346 C358 R323 CN2 R301 R607 R321 Q305 CF200 CN500 BATT CN501 BATT Q300 Q302 Q303 S D D Q306 D400 D401 Q501 5 6 1 10 IC501 3 4 5 1 4 5 1 8 C397 D380 C385 C386 C325 R331 C195 R622 C601 R606 R604 R603 R...

Page 24: ...C212 C236 C239 C244 C247 L109 L112 R300 R119 TH100 R352 R354 C129 C130 R361 C131 C133 R363 R364 R366 C137 R369 C334 C146 C341 C343 C347 C357 L118 C104 L210 L217 L219 R202 R203 C241 C242 D102 D103 4 5 1 8 8 9 C170 L104 R265 R233 CN104 CN101 Q102 S D C103 TK 3501 PC BOARD Ref No Address IC1 8P IC200 8K IC305 8I Q1 7P Q2 4O Q3 5O Q4 5P Q5 5P Q6 6O Q7 9P Ref No Address Q101 5L Q102 4K Q201 9N Q202 8L ...

Page 25: ...30 C21 C22 L6 L3 J79 0423 09 XF200 IC200 Q202 Q203 D G S G Q2 Q4 Q5 Q6 Q204 D S G G C20 R210 C24 C26 C29 C35 C37 C42 R230 R231 C201 C202 C203 C204 C205 C207 C208 C210 C404 C211 C405 C212 C213 C215 C217 C219 R258 C223 C224 C225 C230 C281 C236 C253 C239 C3 C8 C252 D1 D4 D6 D7 D200 L103 R107 R109 R300 L2 L5 L10 C101 C102 TH100 C109 C111 R11 R12 R13 R15 R361 R26 R28 R29 C334 R32 R33 R34 R1 R2 R3 R7 C3...

Page 26: ...B 5M 5C 5T IC503 Q501 RE1C001ZP Q502 LTA023JEBFS8 5TC 5R 5RC 5CC RESET IC500 BU4830 D500 GN1G BATT 7 5V EN2 EN4 EN3 EN1 S400 PTTI 5M D401 B30 1779 05 D400 B30 1782 05 Q401 LED_R LED_G X400 XOUT XIN 5M E2P_CLK E2P_WP 11 0592MHz IC400 F2136ACNFKFMA IC401 BR24T16FVT W 2nd 38 19 2MHz 407 150MHz 407 250MHz RX 5M Q402 SB VOLIN F500 B DO PTT 3 5 VR500 2 1 4 6 S402 X57 8992 70 TUNE D4 1SS390 ASSIST DALD C...

Page 27: ...FG Q302 RTQ035N03 Q306 RTQ035N03 Q301 LTC044EEBFS8 Q303 RW1E015RP SB Q300 LTC044EEBFS8 SP_MUTE INT SP MIC 1st Local 2nd Local 38 4MHz 407 150MHz 407 250MHz RX 1st IF 38 85MHz SPG TXD SPK NC AFO PTT RXD MIC IM OPTDED 5MS RXD J301 J300 MIC300 OPTDET 5MS DAC IC300 R2A20178NP DALD CLK DAT 5MS AST PTTI 450kHz CURRENT_DET IC305 BA2904FVM IC303 BA2904FVM LSDIN 5R 5R VOLIN POWC FADJ MOD TXD IC301 BA2904FV...

Page 28: ...2 0dBm ANT 50Ω MIC 15 1mVrms 55mVrms 19 7dBm 0dBm C108 Q5 Q6 RXLo D200 D100 Q101 Q102 AF 1kHz RF CENTER FREQUENCY R313 Q4 8Ω LEVEL DIAGRAM To make measurements in the AF section connect the AC level meter Set AF volume at 500mW of the external speaker output ANT input 53dBm 1kHz FM 1 5kHz Dev Narrow In the RF section use a high impedance probe ANT input 53dBm MOD off AG is set to the MIC input bec...

Page 29: ...117 1 H x 25 5 D mm 210g RECEIVER Measurements mode per EN Standards Sensitivity EIA 12dB SINAD 0 35μV EN 20dB SINAD 1dBμV 0 45μV Adjacent Channel Selectivity 60dB Intermodulation 65dB Spurious Response Rejection 60dB Audio Output 1 0W at 8Ω Internal Speaker 500mW at 8Ω External Speaker TRANSMITTER Measurements mode per EN Standards RF Output Power ERP 0 5W Spurious Emission 36dBm 30MHz 1GHz 30dBm...

Page 30: ...TK 3501 JVC KENWOOD Corporation Communications Equipment BU ...

Page 31: ...0p C134 270p C39 10p C14 0 01u C15 0 01u C35 6p B C37 6p B C16 1000p C221 0 01u C513 1u C415 1000p C414 1000p C413 1000p C412 1000p C500 100p C329 0 033u C330 1000p C336 0 01u C507 10u C406 12p C400 0 1u C401 1000p C405 1000p C404 0 1u C23 1000p C304 10u C200 10u C350 1000p C139 4 7u C145 270p C146 1 5p B C354 0 22u C224 0 01u C411 1000p C133 6p C21 0 75p C25 5p B C43 1000p C17 4p B C8 0 1u C22 0 ...

Page 32: ...R397 R375 R376 C340 C342 C349 R386 C158 C352 CN1 CV R406 R407 C409 R303 R308 R309 R310 R312 CN510 CN302 CN303 CN502 CN503 CN504 CN505 CN507 C604 R336 CN512 CN511 C301 R342 C306 C500 C503 C506 C507 R350 R351 C318 C511 C324 C522 C335 R379 C346 C358 R328 R323 C336 CN2 R301 R607 R321 C313 Q304 Q305 Q502 IC400 IC401 D301 IC301 IC304 CF200 CN500 BATT CN501 BATT Q300 Q302 Q303 S D D Q306 D400 D401 Q501 5...

Page 33: ...R232 C201 C202 C203 C204 C205 C207 C208 C210 C404 C211 C405 C212 C213 C215 C217 C219 R258 C223 C224 C225 C230 C281 C236 C253 C239 C244 C247 C3 C8 C252 D1 D4 D6 D7 D200 L103 L109 L112 R107 R109 R300 R119 L2 L5 L10 C101 C102 TH100 C109 C111 R11 R352 R12 R13 R354 R15 C129 C130 R361 C131 C133 R363 R364 R366 R26 C137 R28 R369 R29 C334 R32 R33 R34 R1 C146 R2 R3 R7 C341 R9 C343 C347 R43 R50 R51 C357 L118...

Page 34: ... 11 0592MHz IC400 F2136ACNFKFMA IC401 BR24T16FVT W MIC AFOUT DETAF IC302 TA7368FG Q302 RTQ035N03 Q306 RTQ035N03 Q301 LTC044EEBFS8 Q303 RW1E015RP SB Q300 LTC044EEBFS8 SP_MUTE INT SP MIC 1st Local 2nd Local 38 4MHz 19 2MHz 407 150MHz 407 250MHz RX 1st IF 38 85MHz 5M Q402 SB VOLIN F500 B DO SPG TXD SPK NC AFO PTT RXD MIC IM OPTDED 5MS RXD J301 J300 MIC300 OPTDET 5MS PTT 3 5 VR500 2 1 4 6 S402 X57 899...

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