Kenwood TK-3201 Service Manual
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Kenwood TK-3201 Service Manual

Uhf fm transceiver
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See also: Service Manual Supplement , Instruction Manual
UHF FM TRANSCEIVER
TK-3201
SERVICE MANUAL
Knob (PTT)
(K29-9308-03)
Cover (ANT)
(F07-1882-03))
Knob (CH-SELECTOR)
(K29-9318-03)
Knob (VOLUME)
(K29-9309-03)
Cabinet assy
(A02-3888-03)
©
2004-7 PRINTED IN JAPAN
B51-8696-00 (S) 493
CONTENTS
GENERAL ............................................................. 2
REALIGNMENT .................................................... 3
DISASSEMBLY FOR REPAIR .............................. 4
CIRCUIT DESCRIPTION ....................................... 7
TERMINAL FUNCTION ...................................... 10
SEMICONDUCTOR DATA ................................. 10
COMPONENTS DESCRIPTION ......................... 11
PARTS LIST ........................................................ 12
EXPLODED VIEW ............................................... 18
PACKING ............................................................ 19
ADJUSTMENT ................................................... 20
TX-RX UNIT (X57-6972-70) .......................... 24
SCHEMATIC DIAGRAM ..................................... 28
BLOCK DIAGRAM .............................................. 32
LEVEL DIAGRAM ............................................... 34
SPECIFICATIONS ............................ BACK COVER

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  • Page 1: Table Of Contents

    UHF FM TRANSCEIVER TK-3201 SERVICE MANUAL © 2004-7 PRINTED IN JAPAN B51-8696-00 (S) 493 CONTENTS Cover (ANT) GENERAL ............. 2 (F07-1882-03)) REALIGNMENT ............ 3 Knob (CH-SELECTOR) DISASSEMBLY FOR REPAIR ......4 (K29-9318-03) CIRCUIT DESCRIPTION ........7 TERMINAL FUNCTION ........10 Knob (VOLUME) SEMICONDUCTOR DATA .........

  • Page 2: General

    TK-3201 GENERAL INTRODUCTION PERSONAL SAFETY SCOPE OF THIS MANUAL The following precautions are recommended for personal This manual is intended for use by experienced technicians safety: f a m i l i a r w i t h s i m i l a r t y p e s o f c o m m e r c i a l g r a d e DO NOT transmit until all RF connectors are verified secure ●...

  • Page 3: Realignment

    98, ME, Windows 2000 or XP on an IBM-PC or compatible machine. PTT (Push to The data can be input to or read from TK-3201 and edited Talk) switch Press and hold, on the screen. The programmed or edited data can be printed then speak into out.

  • Page 4: Disassembly For Repair

    TK-3201 DISASSEMBLY FOR REPAIR ■ Removing the battery release lever from the case ■ Removing the case assembly from the chassis. assembly. 1. Remove the volume knob and channel knob 2. Remove the two screws 1. Press the upper part of the lever toward the inside of the 3.
  • Page 5 TK-3201 DISASSEMBLY FOR REPAIR ■ Assembling the battery release lever 2. Mounting the chassis to the case assembly. 1. Place the lever onto the stopper 1. Confirm that the waterproof packing attached to the 2. Place the thick spring onto the lever.
  • Page 6 TK-3201 DISASSEMBLY FOR REPAIR 3. The nuts of the volume knob and channel 5. Connecting the speaker wires to the TX-RX knob unit Note that the shapes, colors and heights of nuts of the Note: To connect the speaker wires, you must solder it to the volume knob and channel knob are different from one location of the TX-RX unit as illustrated below.

  • Page 7: Circuit Description

    TK-3201 CIRCUIT DESCRIPTION 1. Frequency Configuration (Q203) and then applied to the lF system IC (IC201). The IF system IC provides a second mixer, second local oscillator, The receiver utilizes double conversion. The first IF is 38.85 limiting amplifier, quadrature detector and RSSI (Received MHz and the second IF is 450 kHz.
  • Page 8 TK-3201 CIRCUIT DESCRIPTION 3. PLL Frequency Synthesizer 4. Transmitter System The PLL circuit generates the first local oscillator signal for 1) Microphone Amplifier reception and the RF signal for transmission. The signal from the microphone passes through IC301. The signal passes through the Audio processor (IC301) for...

  • Page 9: Power Supply

    TK-3201 CIRCUIT DESCRIPTION 4) Encode Signalling Note: (1) QT/DQT The transceiver checks the battery voltage during reception QT,DQT data of the QTTCXO Line is output from pin 28 of even when, in the FPU, the Battery Warning status function the CPU. The signal passes through a low-pass CR filter is set to “On TX”...

  • Page 10: Terminal Function

    TK-3201 TERMINAL FUNCTION / SEMICONDUCTOR DATA TERMINAL FUNCTION ■ CN401 Name Function Name Function B (Battery Voltage) Encoder pulse input Switched B Audio input Encoder pulse input Audio output Encoder pulse input Encoder pulse input Encoder pulse input SEMICONDUCTOR DATA Microprocessor : 30622MAA-B91GP (TX-RX UNIT : IC405) ■...

  • Page 11: Components Description

    TK-3201 COMPONENTS DESCRIPTION TX-RX UNIT (X57-6972-70) Ref. No. Use/Function Operation/Condition Ref. No. Use/Function Operation/Condition PLL system Diode Ripple Filter IC101 Comparator (APC) Variable Frequency control IC201 FM IF system Capcitance Diode IC301 Audio processor Variable Frequency control IC302 AF AMP...

  • Page 12: Parts List

    TK-3201 PARTS LIST CAPACITORS CC 45 TH 1H Capacitor value Color* CC45 010 = 1pF 0 = 22pF 1 = Type ... ceramic, electrolytic, etc. 100 = 10pF 4 = Voltage rating Multiplier 2 = Shape ... round, square, ect.
  • Page 13 E: Europe 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-3201 (Y50-593X-XX) TX-RX UNIT (X57-6972-70) Ref. No. Address Parts No. Description Destination Ref.
  • Page 14 TK-3201 PARTS LIST TX-RX UNIT (X57-6972-70) Ref. No. Address Parts No. Description Destination Ref. No. Address Parts No. Description Destination parts parts CC73HCH1H101J CHIP C 100PF C161 CC73GCH1H050B CHIP C 5.0PF CK73HB1H471K CHIP C 470PF C163 CC73GCH1H2R5B CHIP C 2.5PF...
  • Page 15 TK-3201 PARTS LIST TX-RX UNIT (X57-6972-70) Ref. No. Address Parts No. Description Destination Ref. No. Address Parts No. Description Destination parts parts C304 CK73GB1A224K CHIP C 0.22UF K C902 CK73GB1A105K CHIP C 1.0UF C306 C92-0714-05 CHIP-TAN 4.7UF 6.3WV C05-0384-05 CERAMIC TRIMMER CAP(10PF)
  • Page 16 TK-3201 PARTS LIST TX-RX UNIT (X57-6972-70) Ref. No. Address Parts No. Description Destination Ref. No. Address Parts No. Description Destination parts parts CP404,405 RK75HA1J473J CHIP-COM J 1/16W R137 R92-0670-05 CHIP R 0 OHM RK73HB1J223J CHIP R J 1/16W R138 RK73GB1J105J CHIP R 1.0M...
  • Page 17 TK-3201 PARTS LIST TX-RX UNIT (X57-6972-70) Ref. No. Address Parts No. Description Destination Ref. No. Address Parts No. Description Destination parts parts R324,325 RK73GB1J154J CHIP R 150K J 1/16W D106 HVC131 DIODE R326 R92-1252-05 CHIP R 0 OHM J 1/16W...

  • Page 18: Exploded View

    TK-3201 EXPLODED VIEW MIC301 TX-RX Unit CF201 A :N14-0818-04 B :N14-0819-04 D :N30-2606-46 E :N83-2005-46 Parts with the exploded numbers larger than 700 are not supplied.

  • Page 19: Packing

    TK-3201 PACKING 8 . INSTRUCTION MANUAL (B62-1807-10) 701. PAMPHLET(BATTERY) : E 702. PAMPHLET(R&TTE) 703. WARRANTY CARD 42.PROTECTION BAG (H25-0085-04) 44.HOLDER(SP/MIC) (J19-5472-03) 54.SCREW SET (N99-2043-05) 4. CAP(SP/MIC) (B09-0680-03) 48.BELT CLIP (J29-0713-05) 40.PACKING FIXTURE (H12-3172-05) 700. KNB-29N (Ni-MH BATTERY PACK) 41.CARTON BOARD 59.CHARGER...

  • Page 20: Adjustment

    2. Repair Jig (Chassis) power supply and the battery jig, especially while the Use jig (part No.: A10-4086-03) for repairing the TK-3201. transceiver transmits. Place the TX-RX unit on the jig and fit it with screws.
  • Page 21 TK-3201 ADJUSTMENT PTT (Push to Channel selector Talk) switch Antenna LED indicator Call key Power switch/ Volume control Speaker/ microphone jacks Monitor key Adjustment points Frequency (MHz) TX-RX unit (X57-697) Channel No. RX Frequency TX Frequency Component side view 446.00625 446.00625...
  • Page 22 TK-3201 ADJUSTMENT Common Section Measurement Adjustment Specifications/ Item Condition Remark Test equipment Terminal Parts Method 1.Setting 1) BATT terminal votage:7.5V 2) SSG standard modulation MOD:1kHz,DEV:1.5kHz 2.VCO lock 1) CH:5 Power meter 3.0 V ±0.1V voltage TX PTT:ON 3.VCO lock 2) CH:1 Check 0.6V or more...
  • Page 23 TK-3201 ADJUSTMENT Receiver Section Measurement Adjustment Specifications/ Item Condition Remark Test equipment Terminal Parts Method 1.BPF Wave Spectrum analyzer setting Spectrum Check the REF -40.0 dBm 5dB/ A_Write Norm B_Blank Norm CENTER Check Center-f : 446MHz analyzer waveform as 446.0 MHz...

  • Page 24: Pc Board

    TK-3201 PC BOARD TX-RX UNIT (X57-6972-70) Component side view (J72-0950-09) F401 C405 D401 PCTV C401 C402 BATT+ C428 MIC301 L404 L402 – C430 CP404 R338 R404 R406 C415 C217 IC405 C201 TH203 L403 IC403 R407 C418 R425 R424 R420 R419...
  • Page 25 TK-3201 PC BOARD TX-RX UNIT (X57-6972-70) Component side view (J72-0950-09) R438 R134 R409 L111 R436 R410 R412 Q108 IC101 R403 CN13 R411 C403 R142 R130 R139 C146 R140 D102 R141 R132 R127 R138 Q107 C140 R126 MIC301 C126 R121 R135...
  • Page 26 TK-3201 TK-3201 PC BOARD PC BOARD TX-RX UNIT (X57-6972-70) Component side view (J72-0950-09) TX-RX UNIT (X57-6972-70) Component side view (J72-0950-09) R438 R134 R409 F401 L111 R436 R410 R412 Q108 C405 IC101 R403 D401 CN13 PCTV R411 C401 C403 R142 R130...
  • Page 27 TK-3201 PC BOARD TX-RX UNIT (X57-6972-70) Foil side view (J72-0950-09) S401 S402 S403 D104 L228 R254 R253 C156 L223 C267 Q205 R145 C158 C262 R249 C265 C241 L215 C258 C275 R258 L225 C253 C252 C256 C169 L110 R450 R449 C154...

  • Page 28: Pc Board Tx-Rx Unit (X57-6972-70)

    TK-3201 PC BOARD TX-RX UNIT (X57-6972-70) Foil side view (J72-0950-09) S402 CN201 C421 C427 XF201 R226 C225 D402 R215 R227 C219 C443 C241 C228 C426 R233 CD201 R236 C207 R209 L290 C348 C208 R206 CF201 R213 C233 C210 C215 Q301...
  • Page 29 TK-3201 TK-3201 PC BOARD PC BOARD TX-RX UNIT (X57-6972-70) Foil side view (J72-0950-09) TX-RX UNIT (X57-6972-70) Foil side view (J72-0950-09) S402 S401 S403 CN201 D104 C421 C427 L228 R254 R253 XF201 C156 L223 R226 C225 C267 Q205 D402 R215 R145...

  • Page 30: Schematic Diagram

    TK-3201 SCHEMATIC DIAGRAM TX-RX UNIT (X57-6972-70) PLL_CLK PLL_DAT PLL_STB 2.74V 100k PLL SYSTEM MB15A02 4.82V 2SC5108(Y) RIPPLE FILTER PLL IC F_IN AMP 470p 4.76V MA2S111 0.01u R12-7491-05 4.9V L77-1931-05 F401 L401 4.7V BATT 12.8MHz 0.71V BATT oUTPUT 4.7u 330k 2.2k...
  • Page 31 TK-3201 SCHEMATIC DIAGRAM TX-RX UNIT (X57-6972-70) TX/RX T:3.45V T:2.85V RF SW D101 C101 C102 VCO OSCILLATION (TX) 4.73V D2,4,6,7 220n RF BUFFER AMP HSC277 470p FREQUENCY 3.4V CONTROL HVC376B 0.69V RF AMP 2SC5108(Y) 2SC4619(P,Q) 100n 0.5p HVC376B R:2.9V T:3.0V 3.7V...
  • Page 32 TK-3201 SCHEMATIC DIAGRAM TX-RX UNIT (X57-6972-70) TX FINAL AMP R:7.63V T:3.44V T:4.89V TX DRIVE AMP T:7.45V Q103 Q102 C144 C107 R108 C112 L103 R149 C123 L107 C171 RD02MUS1 R103 R112 RD00HVS1 R120 L112 4.7n 8.2n 1000p 1.5k 1000p RF AMP...
  • Page 33 TK-3201 SCHEMATIC DIAGRAM ● Note : The components marked with a dot ( ) are parts of layer1. TX-RX UNIT (X57-6972-70) CN101 ANT SW D122 C160 C163 2.5p HVC131 STRIP LINE D103 R137 C152 C158 L225 L226 L224 CN13 100p...
  • Page 34 TK-3201 SCHEMATIC DIAGRAM ● Note : The components marked with a dot ( ) are parts of layer1. TX-RX UNIT (X57-6972-70) ANT SW CN101 D122 C160 C163 T:3.44V T:4.89V TX DRIVE AMP R:7.63V TX FINAL AMP Q102 T:7.45V Q103 STRIP LINE HVC131 2.5p...

  • Page 35: Block Diagram

    TK-3201 BLOCK DIAGRAM X57-697 IC404 BD4845FVE IC403 BD4840FVE IC1 MB15A02 PLL_DAT RESET RESET PLL_CLK PLL_STB D401 RB521S-30 IC401 XC6204B502MR Q4 2SK508NV(K52) D2,D4,D6,D7 HVC3768 D10 1SV278 PROTECT Loop Q405 RT1P237U Filter 12.8MHz 5C_C X1 L77-1931-05 Q403 CPH3317 QTTCXO IC402 XC6204B502MR QTVCO...
  • Page 36 TK-3201 BLOCK DIAGRAM TX/RX:446MHz Q2 2SC5108(Y) D122,D103,D104,D106 Q6 2SC5108(Y) Q9 2SC4619 D101,D202 HSC277 Q100 2SC4619 Q101 2SC5192 Q102 RD00HVS1 Q103 RD02MUS1-T22 HVC131 BUFF Q8 2SC5383 D11 MA2S111 Q104 RT1N141U Q109 IC101 Q105 2SK879(Y) RT1P441U TA75W01FU RIPPLE CURRENT FILTER Q108 2SK1824...

  • Page 37: Level Diagram

    TK-3201 LEVEL DIAGRAM...

  • Page 38: Ksc-31 / Knb-29N / Knb-30A / Kbh-10

    TK-3201 KSC-31 / KNB-29N / KNB-30A / KBH-10 KSC-31 (RAPID CHARGER) KNB-29N (Ni-MH BATTERY PACK) ■ External View ■ External View ■ Specifications Voltage ....7.2V (1.2V x 6) Battery capacity ... 1500mAh ■ Specifications ■ Schematic Diagram Charging current ....850mA ±5% Charging time .....

  • Page 39: Specifications

    KENWOOD ELECTRONICS SINGAPORE PTE LTD. 13, Boulevard Ney, 75018 Paris, France 1 Genting Lane 07-00 Kenwood Building, Singapore 349544 KENWOOD ELECTRONICS U.K. LIMITED KENWOOD House, Dwight Road, Watford, Herts., WD18 9EB, United Kingdom KENWOOD ELECTRONICS EUROPE B.V. Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands...

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