Kenwood TK-3230 Service Manual
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Kenwood TK-3230 Service Manual

Uhf fm transceiver
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See also: Service Manual , Instruction Manual
UHF FM TRANSCEIVER
TK-3230
SERVICE MANUAL
Cover (Antenna cap)
(F07-1929-03)
Button knob (PTT)
(K29-9398-03)
Key top
(K29-9399-02)
Plastic cabinet assy
(Front)
(A02-3977-03)
RoHS
This product complies with the
Knob (VOL)
(K29-9397-03)
Cap
(B09-0710-03)
directive for the European market.
© 2007-7 PRINTED IN JA PAN
B51-8792-00 ( N ) 357
CONTENTS
GENERAL .....................................................2
REALIGNMENT ...........................................3
CIRCUIT DESCRIPTION ..............................6
SEMICONDUCTOR DATA .........................10
COMPONENTS DESCRIPTION .................11
PARTS LIST ...............................................12
EXPLODED VIEW ......................................17
PACKING ....................................................18
ADJUSTMENT ..........................................19
LEVEL DIAGRAM ......................................23
TX-RX UNIT (X57-7330-10) ...................24
SCHEMATIC DIAGRAM ............................28
BLOCK DIAGRAM .....................................32
KNB-46L, KBH-14, KSC-37 ....................34
SPECIFICATIONS ...................BACK COVER
This product uses Lead Free solder.

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  • Page 1: Table Of Contents

    UHF FM TRANSCEIVER TK-3230 SERVICE MANUAL © 2007-7 PRINTED IN JA PAN B51-8792-00 ( N ) 357 CONTENTS GENERAL .............2 Cover (Antenna cap) Knob (VOL) (F07-1929-03) (K29-9397-03) REALIGNMENT ...........3 CIRCUIT DESCRIPTION ......6 (B09-0710-03) SEMICONDUCTOR DATA ......10 COMPONENTS DESCRIPTION ....11 PARTS LIST ..........12 EXPLODED VIEW ........17...

  • Page 2: General

    Kenwood reserves the right to make changes to any otherwise, for any purpose without the prior written products herein at any time for improvement purposes.
  • Page 3 TK-3230 GENERAL / REALIGNMENT 2 Channels (Default) 1. Getting Acquainted q PTT (Push to Talk) switch Channel Receive frequency Transmit frequency Press and hold, then speak into the speaker area to (MHz) (MHz) transmit. (02) 464.55000 (02) 464.55000 w MENU key (08) 467.92500...

  • Page 4: Realignment

    TK-3230 REALIGNMENT Notes: KPG-22 or KPG-22A or IBM-PC • You must install the KCT-53U driver in the computer to KPG-22A+KCT-53U Illustration is KPG-22 used the USB adapter (KCT-53U). • When using the USB adapter (KCT-53U) for the fi rst time, plug the KCT-53U into a USB port on the computer with the computer power ON.
  • Page 5 TK-3230 REALIGNMENT 3-3. Operation • Electronic interface may cause a failure in data transfer during Wireless Clone, such as when waveforms or 1. To switch the clone target/s to Clone mode, press electromagnetics are being performed at the workbench. and hold the [PTT] and [MONI] keys while turning the •...

  • Page 6: Circuit Description

    TK-3230 CIRCUIT DESCRIPTION Frequency Confi guration Item Rating Nominal center frequency (fo) 38.85MHz 450kHz Pass bandwidth ±5.0kHz or more at 3dB 460~470MHz 38.85MHz 1st MIX Attenuation bandwidth ±18.5kHz or less at 35dB MIX, IF Ripple 1.0dB or less Insertion loss 4.0dB or less...
  • Page 7 TK-3230 CIRCUIT DESCRIPTION ■ IF Amplifi er Narrow and wide setting can be made for each channel by switching the demodulation level. The WIDE (low level) The IF circuit is integrated in the FM IC (IC200). The IF and NARROW (high level) data is output from IC403, pin IC contains local input, mixer, limiter amplifi...
  • Page 8 TK-3230 CIRCUIT DESCRIPTION In receive mode, the shift signal T/R goes low, Q1 turns PLL System off, and the shift diode (D1) not contact. Q2 produces ■ VCO Circuit the first local frequency for reception. (Receive channel The VCO is housed in a shield case.
  • Page 9 TK-3230 CIRCUIT DESCRIPTION ■ QT/DQT Control System • Encode (Transmit) ■ Reset Circuit QT/DQT signal is generated by MCU (IC403). Output When a battery voltage is dropped, IC401 is detected signal (IC403 pin 18 (TO)) goes to TCXO modulation and low voltage, and this detected signal input to IC403 for stop VCO modulation (Through the VR300).

  • Page 10: Semiconductor Data

    TK-3230 SEMICONDUCTOR DATA MCU: D338327A19WV (TX-RX unit IC403) Pin No. Signal Name Function ■ Terminal Function CALL Pin No. Signal Name Function EEPDATA I/O EEPROM data SP DET Head set detect EEPCLK EEPROM clock AVSS MIC MUTE MIC mute SHIFT...

  • Page 11: Components Description

    TK-3230 COMPONENTS DESCRIPTION TX-RX unit (X57-7330-10) Ref. No. Part Name Description Ref. No. Part Name Description Phase Locked Loop system Q303 Transistor MIC mute/AGC IC100 Q400 Transistor DC switch (Back Light) IC200 IF System Q401 Transistor DC switch (Busy) IC300...

  • Page 12: Parts List

    13PF C134 CC73GCH1H101J CHIP C 100PF CC73HCH1H101J CHIP C 100PF C136 CK73HB1A224K CHIP C 0.22UF CC73HCH1H1R5B CHIP C 1.5PF C137 CK73HB1C103K CHIP C 0.010UF C138 CK73HB1A104K CHIP C 0.10UF C19,20 CK73HB1H471K CHIP C 470PF K : TK-3230 BK : TK-3230B...
  • Page 13 TK-3230 PARTS LIST TX-RX UNIT (X57-7330-10) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C200 CK73HB1H182K CHIP C 1800PF C316 CC73HCH1H221J CHIP C 220PF C202 CK73HB1H271K CHIP C...
  • Page 14 TK-3230 PARTS LIST TX-RX UNIT (X57-7330-10) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C440 CC73HCH1H101J CHIP C 100PF L214 L40-2775-57 SMALL FIXED INDUCTOR (27.0NH) C442,443 CC73HCH1H101J CHIP C...
  • Page 15 TK-3230 PARTS LIST TX-RX UNIT (X57-7330-10) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R125,126 RK73HB1J184J CHIP R 180K 1/16W R333 RK73HB1J682J CHIP R 6.8K 1/16W R128 RK73HB1J000J...
  • Page 16 TK-3230 PARTS LIST TX-RX UNIT (X57-7330-10) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R473 RK73HB1J184J CHIP R 180K 1/16W Q403 2SC4919 TRANSISTOR R474 RK73GB2A000J CHIP R 1/10W Q404-406 ✽...

  • Page 17: Exploded View

    TK-3230 EXPLODED VIEW TX-RX TX-RX TX-RX TX-RX TX-RX unit : N14-0840-05 M2 x 6 : N80-2006-43 Parts with the exploded numbers larger than 700 are not supplied.

  • Page 18: Packing

    TK-3230 PACKING 5 Instruction manual (B62-1976-10) 701 Pamphlet : K 702 Warranty card 30 AC adapter (120V) (W08-0994-05) : K 702 Protection bag 703 Battery assy : K 31 Charger (W08-0995-05) : K 19 Hook assy (J29-0736-05) 25 Screw set...

  • Page 19: Adjustment

    TK-3230 ADJUSTMENT Required Test Equipment Service Jig ■ ANT cable (E30-3418-08) 1. Stabilized Power Supply 1) The supply voltage can be changed between 0V and 10V, Modify the cable as shown below. and the current is 3A or more 2) The standard voltage is 3.8V 2.
  • Page 20 TK-3230 ADJUSTMENT Common Section Measurement Adjustment Item Condition Specifi cations / Remarks Test- Unit Terminal Unit Parts Method equipment 1. Setting 1) Set unit jig Battery terminal: 3.8V 2. VCO lock 1) CH: TX high Digital TX-RX TX-RX 1.85V ±0.05V...
  • Page 21 TK-3230 ADJUSTMENT Measurement Adjustment Item Condition Specifi cations / Remarks Test- Unit Terminal Unit Parts Method equipment 7. MAX 1) CH: TX center Linear Adjust it to 4.2kHz. ±0.1kHz deviation Modulation analyzer fi lter detector Jig cable ± peak whichever...
  • Page 22 TK-3230 ADJUSTMENT Receiver Section Measurement Adjustment Item Condition Specifi cations / Remarks Test- Unit Terminal Unit Parts Method equipment 1. Sensitiviry 1) CH: RX low, center, high Check SINAD: 12dB or more (Wide) SSG output: –117dBm (0.32µV) Oscilloscope Jig cable SSG MOD: 1kHz AF V.M...

  • Page 23: Level Diagram

    TK-3230 LEVEL DIAGRAM...

  • Page 24: Pc Board

    TK-3230 PC BOARD TX-RX UNIT (X57-7330-10) Component side view (J79-0103-09) C349 R351 C360 R357 R347 Q402 Q401 TH100 D400 Q400 MENU Ref. No. Address Ref. No. Address Ref. No. Address IC303 Q402 D307 IC403 Q403 D308 IC405 Q408 D400 Q301...
  • Page 25 TK-3230 PC BOARD TX-RX UNIT (X57-7330-10) Component side view (J79-0103-09) R407 R406 C460 BATT+ IC403 F300 R413 R414 INT. SP+ C448 R441 INT. SP– C446 L404 C445 C211 RSSI L405 C444 R475 C417 Q403 R428 C426 BUSY R472 C443 R442...
  • Page 26 TK-3230 PC BOARD TX-RX UNIT (X57-7330-10) Foil side view (J79-0103-09) L400 C401 R403 IC401 R417 R416 Q404 IC400 R453 BATT+ R437 Q405 IC404 C430 C402 R487 R486 C419 D302 C363 C337 C340 C346 C468 R330 C324 R349 Q302 C326 R328...
  • Page 27 TK-3230 PC BOARD TX-RX UNIT (X57-7330-10) Foil side view (J79-0103-09) C451 J300 EXT. SP/MIC VR301 C203 C204 R207 C216 R352 C200 R202 R200 R208 R216 C205 C208 Q201 R205 C223 C221 C224 C219 Q202 C268 C217 R212 R214 R215 C228...

  • Page 28: Schematic Diagram

    TK-3230 SCHEMATIC DI A GRAM TX-RX UNIT (X57-7330-10) IC400 XC61CN2802N 3.80V 2.99V 2.977V DC SW (3T) IC404 VoUT BH30FB1WG 3.80V 2.89V Q404 BATL KRA305E VOLTAGE DETECT VoUT DC SW (3C) RESET SW Q405 2.845V IC401 STBY KRA305E XC61CN2702N VOLTAGE REGULATOR(3V)
  • Page 29 TK-3230 SCHEMATIC DIAGRAM TX-RX UNIT (X57-7330-10) AUDIO POWER AMP IC303 R339 LM4865M-N L300 C351 INT.SP -Vin Bypass 0.15u L301 2.969V DC vol. Q301 SPAMP 2SK1824-A SPEAKER AMP R315 VR300 VR301 R31-0667-05 D308 SURGE ABSORPTION C331 R336 BEEP 0.047u D304 REVERSE 3.8V...
  • Page 30 TK-3230 SCHEMATIC DI A GRAM TX-RX UNIT (X57-7330-10) SHIELD CASE (VCO) R:0.36V 1.576V T:0.33V 1.365V RF AMP TX MODULATION R:0.783V L409 RF BUFFER AMP 1.6V T:0.77V 2SC5066-F(O) 3.3n 470p C459 2SC5066-F(O) 2SC5488 0.5p 220n 0.765V FREQUENCY 0.38V CONTROL R:2.843V T:0.833V 1.0u...
  • Page 31 TK-3230 SCHEMATIC DIAGRAM TX-RX UNIT (X57-7330-10) TX PRE-DRIVE TX FINAL TX DRIVE Q101 Q104 Q103 2SC5092-F 2SK3656-F RQA0002DNS R:3.776V ANTENNA SW RF SW T:0.751V T:0.78V T:2.77V T:0.8V T:3.793V T:0.593V L411 L102 L105 C101 R469 R470 R471 C113 C120 L106 R128...

  • Page 32: Block Diagram

    TK-3230 BLOCK DIAGRAM TX-RX UNIT (X57-7330-10) Fuse Power switch Low Pass 2.5A Battery Filter F300: F53-0324-05 Volume Voltage Regurator Protector VR300 C432,C434 D4: 1SV214-F R444,R445 IC404: BH30FB1WG D304: GN1G Loop Filter Switch Frequency PDATA Q405: KRA305E Control PCLK C2,C6,C11 D2: 1SV214-F...
  • Page 33 TK-3230 BLOCK DIAGRAM Tx/Rx: 460.000~ 470.000MHz Tempera- T90-1068-05 Lipple Q4: 2SC4617(S) ture SCLK Converter IC100: BH2219FVM Filter D5: MA2S111-F Detector DI/O D4: 1SV214-F TH100 VCONT Low Pass Filter Tx: 460.000~ 470.000MHz Drive Frequency Buffer Pre-drive Final RF Amp Switch Control...

  • Page 34: Optional Accessories

    TK-3230 OPTIONAL ACCESSORIES KNB-46L (Li-ion battery pack) KBH-14 (Belt clip) ■ External View ■ External View KSC-37 (Rapid charger) ■ Specifi cations ■ External View Voltage ................3.7V Charging current ............. 2000mAh ■ Circuit Diagram Discharging terminals – ■ Specifi cations Charge current ..........
  • Page 35 TK-3230 OPTIONAL ACCESSORY (KSC-37: RAPID CHARGER) ■ Flow Chart ✽ START Rapid charge Constant current: 1050mA±5% Does T contact? Constant voltage: 4.5V±1% for Li-ion LED: Red, 180min timer start Red LED with 1sec Error battery Are output LED: Red flash...
  • Page 36 TK-3230 OPTIONAL ACCESSORY (KSC-37: RAPID CHARGER) ■ PC Board (Component side view) JACK ■ PC Board (Foil side view)
  • Page 37 TK-3230 OPTIONAL ACCESSORY (KSC-37: RAPID CHARGER) ■ Schematic Diagram +DC IN +VBAT JACK –VBAT VCC1 – VCC2 JK10 VCC2 VCC1 – – – LED1 GREEN...

  • Page 38: Specifications

    Unit 3712-3724, Level 37, Tower one Metroplaza, 223 Hing Fong Road, Bp 58416 Villepinte, 95944 Roissy Ch De Gaulle Cedex Kwai Fong, N.T., Hong Kong KENWOOD House, Dwight Road, Watford, Herts., 1 Ang Mo Kio Street 63, Singapore 569110 WD18 9EB United Kingdom...
  • Page 39 TK-3230 TK-3230 PC BOARD PC BOARD TX-RX UNIT (X57-7330-10) Component side view (J79-0103-09) TX-RX UNIT (X57-7330-10) Component side view (J79-0103-09) R407 R406 C460 C349 R351 C360 R357 BATT+ IC403 F300 R413 R414 INT. SP+ R347 C448 R441 INT. SP– C446...
  • Page 40 TK-3230 TK-3230 PC BOARD PC BOARD TX-RX UNIT (X57-7330-10) Foil side view (J79-0103-09) TX-RX UNIT (X57-7330-10) Foil side view (J79-0103-09) L400 C401 R403 C451 IC401 R417 R416 J300 EXT. SP/MIC Q404 R453 IC400 BATT+ R437 Q405 IC404 VR301 C430 C402...
  • Page 41 TX-RX UNIT (X57-7330-10) IC400 XC61CN2802N AUDIO POWER AMP 2.99V 3.80V IC303 SHIELD CASE (VCO) R339 TX PRE-DRIVE LM4865M-N TX DRIVE TX FINAL R:0.36V Q101 Q103 Q104 L300 2SC5092-F RQA0002DNS 1.576V T:0.33V 1.365V RF SW T:0.751V T:0.78V T:2.77V T:0.8V 2SK3656-F T:3.793V T:0.593V R:3.776V ANTENNA SW...
  • Page 42 TX-RX UNIT (X57-7330-10) Fuse Power switch Low Pass Tx/Rx: 460.000~ 2.5A Battery Filter 470.000MHz F300: F53-0324-05 Tempera- T90-1068-05 Lipple Q4: 2SC4617(S) ture SCLK Volume Converter IC100: BH2219FVM Filter D5: MA2S111-F Voltage Detector DI/O Regurator Protector C432,C434 VR300 D4: 1SV214-F TH100 VCONT R444,R445 IC404: BH30FB1WG...

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