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Kenwood TK-3202 Service Manual

Uhf fm transceiver
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Document Copyrights
Copyright 2006 by 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, photocopying, recording, or otherwise, for
any purpose without the prior written permission of Kenwood.
Disclaimer
While every precaution has been taken in the preparation of this manual, Kenwood
assumes no responsibility for errors or omissions. Neither is any liability assumed for
damages resulting from the use of the information contained herein. Kenwood reserves
the right to make changes to any products herein at any time for improvement purposes.

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Summary of Contents for Kenwood TK-3202

  • Page 1 Kenwood. Disclaimer While every precaution has been taken in the preparation of this manual, Kenwood assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained herein. Kenwood reserves...

  • Page 2: Table Of Contents

    UHF FM TRANSCEIVER TK-3202 SERVICE MANUAL © 2005-12 PRINTED IN JAPAN E, E3 versions B51-8746-00 ( N ) 286 CONTENTS Knob (CH) GENERAL ........... 2 (K29-9318-03) SYSTEM SET-UP ........2 Knob (VOL) (K29-9309-03) REALIGNMENT .......... 3 DISASSEMBLY FOOR REPAIR ....4...

  • Page 3: General

    LOC : 38.4MHz SYSTEM SET-UP Merchandise received Frequency range (MHz) RF power Type TX/RX 440~470 4.0W TK-3202 (E) Choose the type of transceiver TX/RX 400~430 4.0W TK-3202 (E3) A personal computer (IBM PC or compatible), programming Transceiver programming interface (KPG-22), and programming software (KPG-87D (M2)) are required for programming.

  • Page 4: Realignment

    TK-3202 REALIGNMENT When data is transmitting from the transceiver, the red 1. Modes LED lights. When data is received by the transceiver, the green LED User mode lights. Data programming mode PC mode Notes: • The data stored in the personal computer must match the...

  • Page 5: Disassembly For Repair

    TK-3202 DISASSEMBLY FOR REPAIR Removing the Case Assembly from the Chassis Removing the Battery Release Lever from ➊ ➋ 1. Remove the volume knob ( ) and channel knob ( the Case Assembly ➌ 2. Remove the two screws ( 1.
  • Page 6 TK-3202 DISASSEMBLY FOR REPAIR ■ Mounting the chassis to the case assembly Assembling the Battery Release Lever 1. Confirm that the waterproof packing attached to the cir- ➋ ➊ 1. Place the lever ( ) onto the stopper ( cumference of the chassis is securely inserted in the ➌...
  • Page 7 TK-3202 DISASSEMBLY FOR REPAIR / CIRCUIT DESCRIPTION ■ Attaching the antenna receptacle to the chassis 1. Frequency Configuration Screw the antenna receptacle to the chassis in the order The receiver utilizes double conversion. The first IF is shown in the drawing so that the antenna receptacle 38.85MHz and the second IF is 450kHz.

  • Page 8: Circuit Description

    TK-3202 CIRCUIT DESCRIPTION ■ First Mixer ■ Audio Amplifier Circuit The signal from the front end is mixed with the first local The demodulated signal from IC201 goes to AF amplifier oscillator signal generated in the PLL circuit by Q1 to produce through IC301.
  • Page 9 TK-3202 CIRCUIT DESCRIPTION 3. PLL Frequency Synthesizer 4. Transmitter System ■ Microphone Amplifier The PLL circuit generates the first local oscillator signal for reception and the RF signal for transmission. The signal from the microphone passes through the IC301. When encoding DTMF, it is turned OFF for muting ■...

  • Page 10: Power Supply

    TK-3202 CIRCUIT DESCRIPTION ■ Encode Signaling ■ Memory Circuit • QT/DQT Memory circuit consists of the CPU (IC405) and an EEPROM (IC406). An EEPROM has a capacity of 64k bits QT, DQT data of the QTTCXO Line is output from pin 28 of that contains the transceiver control program for the CPU and the CPU.

  • Page 11: Terminal Function

    TK-3202 CIRCUIT DESCRIPTION / TERMINAL FUNCTION 7. Control System CN401 Keys and channel selector circuit. Pin No. Name Function The signal from the keys and channel selector are directly B (Battery Voltage) input to the microprocessor, as shown in Fig. 11.

  • Page 12: Semiconductor Data

    TK-3202 SEMICONDUCTOR DATA Microprocessor: 30622MAA-B97GU (TX-RX unit IC405) Pin No. Name Function Pin No. Name Function PLL_DAT PLL data output PCTV APC/BPF control data output PLL_CLK PLL clock output DTMF DTMF/ Beep output RX_W/N RX Wide/Narrow switch EEPDAT EEPROM data input/output...

  • Page 13: Components Description

    TK-3202 COMPONENTS DESCRIPTION TX-RX UNIT (X57-6892-XX) Ref. No. Use / Function Operation / Condition Ref. No. Use / Function Operation / Condition PLL system Q306 SP mute switch IC101 Comparator (APC) Q316 SP mute switch IC201 FM IF system Q401...

  • Page 14: Parts List

    TK-3202 PARTS LIST CAPACITORS 2 2 0 • Capacitor value CC45 Color* 010 = 1pF 0 = 22pF 1 = Type ... ceramic, electrolytic, etc. 4 = Voltage rating 100 = 10pF 2 = Shape ... round, square, etc. 5 = Value...
  • Page 15 Les articles non mentionnes dans le Parts No. ne sont pas fournis. Y : AAFES (Europe) X : Australia M : Other Areas Teile ohne Parts No. werden nicht geliefert. TK-3202 (Y50-5902-XX) TX-RX UNIT (X57-6892-XX) Desti- Desti- Ref. No. Address Parts No.
  • Page 16 TK-3202 PARTS LIST TX-RX UNIT (X57-6892-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation CC73HCH1H110J CHIP C 11PF C130 CK73HB1H471K CHIP C 470PF CC73HCH1H120J CHIP C 12PF C132 CC73GCH1H220J CHIP C...
  • Page 17 TK-3202 PARTS LIST TX-RX UNIT (X57-6892-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation C237 CK73HB1H102K CHIP C 1000PF C317 CK73HB1A104K CHIP C 0.10UF C238 CK73GB1C104K CHIP C 0.10UF C318...
  • Page 18 TK-3202 PARTS LIST TX-RX UNIT (X57-6892-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation C452 CK73HB1H102K CHIP C 1000PF L301 L92-0140-05 CHIP FERRITE C453,454 CC73HCH1H101J CHIP C 100PF L302 L92-0149-05...
  • Page 19 TK-3202 PARTS LIST TX-RX UNIT (X57-6892-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation R106 RK73GB2A220J CHIP R 1/10W R301 RK73HB1J103J CHIP R 1/16W R107 RK73HB1J101J CHIP R 1/16W R304...
  • Page 20 TK-3202 PARTS LIST TX-RX UNIT (X57-6892-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation R436 RK73GB2A000JX CHIP R 1/10W Q107 DTC114EE DIGITAL TRANSISTOR R437,438 RK73HB1J473J CHIP R 1/16W Q108 2SK1824...

  • Page 21: Exploded View

    TK-3202 EXPLODED VIEW MIC301 TX-RX unit CF201 34x2 : N14-0819-04 : N14-0820-04 M2.6 x 4 : N30-2604-48 D M2.6 x 6 : N30-2606-48 : N83-2005-48 Parts with the exploded numbers larger than 700 are not supplied. 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.

  • Page 22: Packing

    TK-3202 PACKING 9 Instruction manual (B62-1893-00) Caution card Pamphlet 44 Protection bag (H25-0085-04) 47 Holder (SP/MIC) (J19-5472-03) 6 Cap (SP/MIC) 59 Screw set (B09-0680-03) (N99-2046-05) 43 Packing fixture (H12-3179-05) 51 Belt clip (J29-0713-05) 45 Item carton case (H52-2130-02) Parts with the exploded numbers larger than 700 are not supplied.

  • Page 23: Adjustment

    TK-3202 ADJUSTMENT Test Equipment Required for Alignment Test Equipment Major Specifications 1. Standard Signal Generator Frequency Range 440 to 470MHz (E), 400 to 430MHz (E3) (SSG) Modulation Frequency modulation and external modulation Output –127dBm/0.1µV to greater than –47dBm/1mV 2. Power Meter Input Impedance 50Ω...
  • Page 24 TK-3202 ADJUSTMENT ■ Frequency and Signaling Adjustment Points The transceiver has been adjusted for the frequencies shown in the following table. When required, readjust them following the adjustment procedure to obtain the frequencies BATT+ you want in actual operation. • Frequency (MHz)
  • Page 25 TK-3202 ADJUSTMENT Common Section Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 1. Setting 1) BATT terminal voltage: 7.5V 2) SSG sandard modulation Wide 5k MOD: 1kHz, DEV: 3kHz Wide 4k MOD: 1kHz, DEV: 2.4kHz Narrow MOD: 1kHz, DEV: 1.5kHz...
  • Page 26 TK-3202 ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 7. DQT 1) Test CH: Center, Low, High Power meter Panel KPG-87D Make the demodu- balance (3 points) (M2) lation wave into adjustment Deviation meter filter...
  • Page 27 TK-3202 ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 1) Center frequency Panel KPG-87D Adjust the wave- Spectrum analyzer setting (M2) form as shown to Center f.: 415.10MHz Spectrum TX-RX BPF the Fig. 1 (page 27)
  • Page 28 TK-3202 ADJUSTMENT Mkr1 455.1MHz Mkr1 415.1MHz Ref –43dBm #Atten 10dB –48.7dBm Ref –34dBm #Atten 10dB –40.21dBm Peak Peak Center 455.1MHz Span 100MHz Center 415.1MHz Span 100MHz #Res BW 100kHz #VBW 30kHz Sweep 100ms (401pts) #Res BW 100kHz #VBW 30kHz Sweep 100ms (401pts)

  • Page 29: Pc Board

    TK-3202 PC BOARD TX-RX UNIT (X57-6892-XX) -71 : E -72 : E3 Component side view (J79-0045-09) L404 R203 CP404 TH203 C430 F401 R213 C405 C401 R416 R211 C402 C214 RSSI BATT+ MIC301 – IC405 PCTV R904 R422 R419 IC404 R903...
  • Page 30 TK-3202 PC BOARD TX-RX UNIT (X57-6892-XX) -71 : E -72 : E3 Component side view (J79-0045-09) J79-0045-09 R438 C420 R134 R409 C412 R436 R410 R412 IC101 C413 L111 R403 C406 CN13 Q108 R411 C403 R142 C414 R130 R139 C146 R140...
  • Page 31 TK-3202 TK-3202 PC BOARD PC BOARD TX-RX UNIT (X57-6892-XX) -71 : E -72 : E3 TX-RX UNIT (X57-6892-XX) -71 : E -72 : E3 Component side view (J79-0045-09) Component side view (J79-0045-09) J79-0045-09 R438 L404 CP404 R203 TH203 C420 R134...
  • Page 32 TK-3202 PC BOARD TX-RX UNIT (X57-6892-XX) -71 : E -72 : E3 Foil side view (J79-0045-09) J79-0045-09 C268 R256 D104 L228 R254 R253 L223 or C156 L412 C254 C168 C267 Q205 C251 D204 D203 R241 C247 R145 C158 C262 R249...
  • Page 33 TK-3202 PC BOARD TX-RX UNIT (X57-6892-XX) -71 : E -72 : E3 Foil side view (J79-0045-09) CN201 CD201 XF201 R226 D402 R227 L201 C228 C440 C219 C220 C241 R233 R236 R210 C207 R418 R209 L206 or L290 C208 C348 CF201...
  • Page 34 TK-3202 TK-3202 PC BOARD PC BOARD TX-RX UNIT (X57-6892-XX) -71 : E -72 : E3 TX-RX UNIT (X57-6892-XX) -71 : E -72 : E3 Foil side view (J79-0045-09) Foil side view (J79-0045-09) J79-0045-09 C268 R256 CN201 D104 L228 CD201 R254...

  • Page 35: Tx-Rx Unit (X57-6892-Xx)

    TK-3202 SCHEMATIC DIAGRAM TX-RX UNIT (X57-6892-XX) 2.74V 100k PLL SYSTEM MB15A02PV2E1 4.82V 470p 2SC5108(Y) RIPPLE FILTER PLL IC F_IN AMP 470p 4.76V MA2S111-F 0.01u R12-7491-05 4.9V L77-1931-05 F401 L401 F53-0324-05 4.7V BATT 12.8MHz 0.71V BATT oUTPUT 4.7u 330k 2.2k 1000p...

  • Page 36: Schematic Diagram

    TK-3202 SCHEMATIC DIAGRAM TX-RX UNIT (X57-6892-XX) R:0V TX/RX T:3.37V 4.62V T:2.846V RF SW D2,4,6,7 D101 C102 VCO OSCILLATION (TX) C101 RF AMP 220n FREQUENCY RF BUFFER AMP HSC277 470p CONTROL 3.86V 2SC4619(P,Q) /TX VCO 0.72V 2SC5108(Y) 0.5p(B) R:2.934V VCO/TX T:3.002V 3.7V...
  • Page 37 TK-3202 SCHEMATIC DIAGRAM TX-RX UNIT (X57-6892-XX) R120 TX FINAL AMP RF AMP TX DRIVE AMP R:7.61V T:4.81V T:4.96V T:1.36V T:7.26V Q102 C123 Q103 L104 C107 C112 L103 L107 R123 R103 R112 R111 2SK2596 2SK3476 8.2n 8.2n Q101 2SK3077 Q100 2SC4619(P,Q) RF AMP T:2.5V(H)
  • Page 38 TK-3202 SCHEMATIC DIAGRAM • Note : The components marked with a dot ( ) are parts of layer 1. X57-6892-XX C107 C116 C121 C125 C127 C132 C145 C151 C152 C156 C157 C168 C169 C240 C244 C246 C249 1.5p 100p 0.5p 1.5p...
  • Page 39 TX-RX UNIT (X57-6892-XX) RF AMP TX DRIVE AMP R120 TX FINAL AMP T:4.81V T:4.96V R:7.61V T:1.36V T:7.26V Q102 C123 Q103 R:0V R103 C107 C112 R112 R111 L103 L104 L107 R123 TX/RX 2SK2596 2SK3476 T:3.37V 4.62V T:2.846V RF SW 8.2n 8.2n Q101 D2,4,6,7 VCO OSCILLATION (TX)

  • Page 40: Block Diagram

    TK-3202 BLOCK DIAGRAM X57-689 IC403 IC404 BD4845FVE BD4840FVE MB15A02PFV2E1 PLL_DAT RESET RESET PLL_CLK PLL_STB D401 RB521S-30 Q4: 2SK508NV(K52) PROTECT D2,D4,D6,D7: HVC376B D10: 1SV278F Q405 DTA123JE IC401 Loop XC6204B502MR Filter 5C_C 12.8MHz L77-1931-05 Q403 CPH3317 DTA143TE QTTCXO Q3: 2SK508NV(K52) IC402 D3,D5,D8,D9: HVC376B...
  • Page 41 TK-3202 BLOCK DIAGRAM TX/RX: 2SC5108(Y)F 440.00~470.00MHz (E) 400.00~430.00MHz (E3) D101,D202 Q100 Q101 Q102 Q103 D103,D104,D106,D122 2SC5108(Y)F 2SC4619(P,Q) HSC277 2SC4619(P,Q) 2SK3077F 2SK2596 2SK3476 HVC131 PRE- BUFF DRIVE DRIVE FINAL Q104 DTC114EE Q105 Q109 IC101 2SK879(Y)F DTA144EE TA75W01FUF CURRENT Q108 2SK1824 DCSW...

  • Page 42: Level Diagram

    TK-3202 LEVEL DIAGRAM...

  • Page 43: Knb-29N (Ni-Mh Battery Pack)

    TK-3202 KBH-10 / KSC-31 / KNB-29N KBH-10 (Belt Clip) KSC-31 (Rapid Charger) ■ External View ■ External View ■ Specifications Charging current ....850mA ± 5% Charging time ....... KNB-29N : Approx.180 minutes KNB-30A : Approx.120 minutes Dimensions (Charger only) ... 86.3W x 46.2H x 100.0D (mm) 3-3/8W x 1-7/8H x 4D (inches) Weight (Charger only) ..

  • Page 44: Specifications

    13, Boulevard Ney, 75018 Paris, France Unit 3712-3724, Level 37, Tower one Metroplaza, 223 Hing Fong Road, Kwai Fong, N.T., Hong Kong KENWOOD House, Dwight Road, Watford, Herts., WD18 9EB United Kingdom 1 Ang Mo Kio Street 63, Singapore 569110...

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