Kenwood TK-2212 Service Manual
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Kenwood TK-2212 Service Manual

Vhf 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-2212

  • 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

    KSC-31 / KNB-29N / KBH-10 ......43 SPECIFICATIONS ......BACK COVER Key top (K29-9346-02) Knob (PTT) (K29-9308-13) Button Knob (Side1/Side2) (K29-9307-13) TK-2217(M) : Does not come with antenna. Antenna is available as an option. Photo is TK-2212. This product uses Lead Free solder...

  • Page 3: General

    Unit Model TX-RX Unit Frequency range Remarks & destination TK-2212 K,M X57-7120-10 136~174MHz IF1 : 38.85MHz TK-2217 LOC : 38.4MHz TK-2217 M3 X57-7120-21 216~223MHz...

  • Page 4: Operating Features

    TK-2212/2217 OPERATING FEATURES @ A key 1. Controls and Functions Press to activate its programmable function. The default setting is None (no function). # <B key Press to activate its programmable function. The default setting is Channel Down. $ C> key Press to activate its programmable function.

  • Page 5: Realignment

    Used to transfer programming data machine. from one transceiver to another. The data can be input to or read from TK-2212/2217 and Self programming You can program the frequency, edited on the screen. The programmed or edited data can be...
  • Page 6 TK-2212/2217 REALIGNMENT 4-3. Operation Cloning Frequency Table 1. To switch the clone slave/s to Clone mode, press and hold MODEL TK-2212 TK-2217 the [<B] key while turning the transceiver power ON. Type K, M 2. Wait for 2 seconds. “CLONE” appears on the LCD, followed...
  • Page 7 TK-2212/2217 REALIGNMENT ■ Flow Chart (Master transceiver) If you press the [A] key, the least digit of the password is deleted. [<B]+Power ON If you press the [S] key after entering the password in this procedure, "SELF" is displayed if the entered password is...
  • Page 8 TK-2212/2217 REALIGNMENT 5-6. Self Programming Mode flow chart Key operation ■ Channel selection mode flow chart Key Function [Selector] The selected item changes [S]+Power ON Display [Side1] No action When the Read Data password SLF.LOCK.R authorization password is [Side2] No action set to the transceiver.
  • Page 9 TK-2212/2217 REALIGNMENT ■ Item setting mode flow chart 6. Firmware Version Information Display Turn the transceiver ON with the [Side1] and [Side2] keys [1. RX frequency] or Current 136. 00000 held down. Then, the version is displayed during holding the setting value [3.

  • Page 10: Disassembly For Repair

    TK-2212/2217 DISASSEMBLY FOR REPAIR ■ Removing the TX-RX unit from the chassis. Disassembly Procedure 1. Remove the packing from the SP / MIC jack of the TX- ■ Removing the case assembly from the chassis. RX unit. 1. Remove the volume knob and channel knob 2.
  • Page 11 TK-2212/2217 DISASSEMBLY FOR REPAIR ■ Attaching the positive terminal to the chassis. Precautions for Reassembly Always attach the positive terminal to the chassis, using ■ Attaching the battery release lever to the case the following procedures, before mounting the TX-RX unit assembly.
  • Page 12 TK-2212/2217 DISASSEMBLY FOR REPAIR ■ Connecting the speaker wires to the TX-RX unit Note: If the packing of the SP / MIC does not come to the correct position after attaching the chassis to the case 1. To connect the speaker wires, solder them to the speaker assembly, reposition the packing with your fingers.

  • Page 13: Circuit Description

    Fig. 1 shows the frequencies. oscillator, limiting amplifier, quadrature detector and RSSI (Received Signal Strength Indicator). The second mixer TX/RX : 136 ~ 174MHz (TK-2212(K,M) TK-2217(M)) 216 ~ 223MHz (TK-2217(M3)) 450kHz mixes the first IF signal with the 38.4MHz of the second...
  • Page 14 TK-2212/2217 CIRCUIT DESCRIPTION 6) Squelch to the VCO to control the oscillator frequency. (See Fig. 5) Part of the AF signal from the IC enters the FM IC (IC201) 2) VCO again, and the noise component is amplified and rectified...
  • Page 15 TK-2212/2217 CIRCUIT DESCRIPTION IC301 The QT,DQT data of the QTVCO Line is output from pin 24 of the CPU. The signal passes through a low pass CR filter, mixes with the audio signal, and goes to the VCO modulation AQUA-L input.
  • Page 16 TK-2212/2217 CIRCUIT DESCRIPTION 7. Control System XOUT LCD, Keys and channel selector circuit. IC405 The signal from the keys and channel selector are directly BSHIFT input to the microprocessor, as shown in fig. 11. Q408 Q407 Channel selector H:OFF H:OFF...

  • Page 17: Semiconductor Data

    TK-2212/2217 SEMICONDUCTOR DATA Microprocessor : 30620MCP-A00GP (TX-RX UNIT : IC405) ■ Pin function Port Name Function Port Name Function PCTV APC/BPF control data output 46-48 NC DTMF DTMF/ Beep output Channel selector input EEPDAT I/O EEPROM data input/output OPTDET Headset input detect...

  • Page 18: Components Description

    TK-2212/2217 COMPONENTS DESCRIPTION / TERMINAL FUNCTION TX-RX UNIT (X57-7120-XX) Ref. No. Part name Description Ref. No. Part name Description Diode Ripple filter PLL system Varicap Frequency control / TX VCO VCO 1/2 divider Varicap Frequency control / RX VCO IC101...

  • Page 19: Parts List

    INSULATING SHEET(CHASSIS BATT+) W08-0971-05 AC ADAPTER(AC230V) ACCESSORY G01-4542-04 COIL SPRING(LEVER) G01-4543-04 COIL SPRING(STOPPER) TX-RX UNIT (X57-7120-XX) G10-1330-04 FIBROUS SHEET(IC302:AUDIO IC) -10 : TK-2212(K,M) TK-2217(M) -21: TK-2217(M3) ∗ G10-1348-04 FIBROUS SHEET(SP WIRE) G11-4283-04 RUBBER SHEET(Q106:FINAL FET) D403 B30-2156-05 LED(RED) ∗ G11-4359-04...
  • Page 20 1000PF K C118 CC73GCH1H101J CHIP C 100PF C216 CK73GB1C104K CHIP C 0.10UF K C119 CC73GCH1H270J CHIP C 27PF AK,AM,BM C217 CK73HB1A104K CHIP C 0.10UF K AK : TK-2212 (K) AM : TK-2212 (M) BM : TK-2217 (M) BM3 : TK-2217 (M3)
  • Page 21 1000PF K C280 CK73HB1H102K CHIP C 1000PF K C421 CK73GB1A105K CHIP C 1.0UF C302 CK73HB1C103K CHIP C 0.010UF K C424 CK73HB1H102K CHIP C 1000PF K AK : TK-2212 (K) AM : TK-2212 (M) BM : TK-2217 (M) BM3 : TK-2217 (M3)
  • Page 22 RK73HB1J103J CHIP R J 1/16W L114,115 L34-4573-05 AIR-CORE COIL AK,AM,BM RK73HB1J220J CHIP R J 1/16W L115 L34-4574-05 AIR-CORE COIL RK73HB1J123J CHIP R J 1/16W AK : TK-2212 (K) AM : TK-2212 (M) BM : TK-2217 (M) BM3 : TK-2217 (M3)
  • Page 23 CHIP R 3.9K J 1/16W R344 RK73GB1J102J CHIP R 1.0K J 1/16W R215 RK73HB1J101J CHIP R J 1/16W R345,346 RK73GB1J101J CHIP R J 1/16W AK : TK-2212 (K) AM : TK-2212 (M) BM : TK-2217 (M) BM3 : TK-2217 (M3)
  • Page 24 IC301 AQUA-L MOS-IC IC302 TA7368F MOS-IC IC401,402 XC6204B502MR MOS-IC IC403 BD4840FVE MOS-IC IC404 BD4845FVE MOS-IC ∗ IC405 30620MCP-A00GP MICROPROCESSOR IC IC406 AT24128N10SI27 ROM IC AK : TK-2212 (K) AM : TK-2212 (M) BM : TK-2217 (M) BM3 : TK-2217 (M3)

  • Page 25: Exploded View

    TK-2212/2217 EXPLODED VIEW MIC1 TX-RX unit CF201 A :N14-0819-04 B :N14-0820-04 C :N30-2604-46 D :N30-2606-46 E :N83-2005-46 Parts with the exploded numbers larger than 700 are not supplied.

  • Page 26: Packing

    (SP/MIC) (B09-0680-03) 702.KNB-29N 42. CARTON BOARD (Ni-MH BATTERY PACK) (H13-2109-03) 41. PACKING FIXTURE (H12-3179-05) 54. BELT CLIP (J29-0713-03) 72. CHARGER (W08-0969-05) 44. ITEM CARTON CASE (H52-2079-02): TK-2212(K,M) (H52-2080-02): TK-2217(M,M3) Parts with the exploded numbers larger than 700 are not supplied.

  • Page 27: Adjustment

    2. Repair Jig (Chassis) power supply and the battery jig, especially while the transceiver transmits. Use jig (part No.: A10-4086-03) for repairing the TK-2212/ 2217. Place the TX-RX unit on the jig and fit it with screws. SCHEMATIC DIAGRAM The jig facilitates the voltage check and protects the final amplifier FET when the voltage on the flow side of the TX-RX unit is checked during repairs.
  • Page 28 High 222.950MHz 222.900MHz you want in actual operation. Low’ 218.050MHz 218.100MHz High’ 221.050MHz 221.100MHz Frequency (MHz) K, M type (TK-2212) M type (TK-2217) Channel No. RX Frequency TX Frequency 155.050 155.100 136.050 136.100 173.950 173.900 155.000 155.000...
  • Page 29 Terminal Parts Method 1.Setting 1) BATT terminal votage:7.5V 2) SSG standard modulation [Wide] MOD:1kHz,DEV:3kHz [Narrow] MOD:1kHz,DEV:1.5kHz 2.VCO lock 1) CH:High Power meter 3.8V(TK-2212(K,M) ±0.1V voltage TK-2217(M)) 3.0V(TK-2217(M3)) 2) CH:Low Check 0.6V or more 3.VCO lock 3) CH:High 4.2V(TK-2212(K,M) ±0.1V voltage...
  • Page 30 TK-2212/2217 ADJUSTMENT Measurement Adjustment Specifications/ Item Condition Remarks Test equipment Terminal Parts Method 4.Max deviation TEST CH: Center Power meter Programming 4.2kHz ±80Hz Adjust Deviation meter SP/MIC connector Software:KPG-100D (According to [Wide] High Oscilloscope the lager +,–) (3 points) AG:1kHz/150mV...
  • Page 31 TK-2212/2217 ADJUSTMENT Receiver Section Measurement Adjustment Specifications/ Item Condition Remarks Test equipment Terminal Parts Method REF -20.0 dBm MKR 155 MHz 1.BPF Wave (1)Center frequency Spectrum Programming Adjust the 10 dB/ A_View Norm B_Blank Norm -32.43 dBm MARKER 155 MHz...
  • Page 32 TK-2212/2217 Measurement Adjustment Specifications/ Item Condition Remarks Test equipment Terminal Parts Method 4.SQL9 TEST CH: Center Programming Write Squelch open (Tight) Software: writing High Oscilloscope KPG-100D [Wide] SSG otuput:–117 dBm(0.3µV) AF VTVM SSG MOD:3.0kHz [Narrow] TEST CH:Center SSG otuput:–116 dBm(0.35µV) SSG MOD:1.5kHz...
  • Page 33 TK-2212/2217 PC BOARD TX-RX UNIT (X57-7120-XX) Component side view (J72-0967-09) -10 : TK-2212 (K,M), TK-2217 (M) -21 : TK-2217 (M3) C430 L402 FUSE TH203 CP407 F401 L404 C201 CP406 CP404 C405 C217 R211 C401 C215 R416 C402 SP– C214 RSSI...
  • Page 34 TK-2212/2217 PC BOARD TX-RX UNIT (X57-7120-XX) Component side view (J72-0967-09) -10 : TK-2212 (K,M), TK-2217 (M) -21 : TK-2217 (M3) J72-0967-09 R438 C424 C406 CN13 R412 R141 Q108 R408 IC101 C403 R131 C408 SP– MIC1 C140 – Q109 R135 Q107...
  • Page 35 PC BOARD PC BOARD TX-RX UNIT (X57-7120-XX) Component side view (J72-0967-09) TX-RX UNIT (X57-7120-XX) Component side view (J72-0967-09) -10 : TK-2212 (K,M), TK-2217 (M) -21 : TK-2217 (M3) -10 : TK-2212 (K,M), TK-2217 (M) -21 : TK-2217 (M3) J72-0967-09 R438...
  • Page 36 TK-2212/2217 PC BOARD TX-RX UNIT (X57-7120-XX) Foil side view (J72-0967-09) -10 : TK-2212 (K,M), TK-2217 (M) -21 : TK-2217 (M3) J72-0967-09 R237 D106 R239 D105 C263 Q205 C149 L116 or L255 C153 R234 L122 C264 C266 C241 C348 R230 R222...
  • Page 37 TK-2212/2217 PC BOARD TX-RX UNIT (X57-7120-XX) Foil side view (J72-0967-09) -10 : TK-2212 (K,M), TK-2217 (M) -21 : TK-2217 (M3) CN201 R470 CD201 XF201 D402 C241 L201 R222 C228 C440 C219 C220 C242 R417 R210 C207 R418 L207 R209 IC406...
  • Page 38 PC BOARD PC BOARD TX-RX UNIT (X57-7120-XX) Foil side view (J72-0967-09) TX-RX UNIT (X57-7120-XX) Foil side view (J72-0967-09) -10 : TK-2212 (K,M), TK-2217 (M) -21 : TK-2217 (M3) -10 : TK-2212 (K,M), TK-2217 (M) -21 : TK-2217 (M3) J72-0967-09 R237...

  • Page 39: Tx-Rx Unit (X57-7120-Xx)

    TK-2212/2217 SCHEMATIC DIAGRAM TX-RX UNIT (X57-7120-XX) PLL SYSTEM MB15A02 4.84V 470p 4.76V RIPPLE FILTER MA2S111 VR1 68k R12-7491-05 0.01u L77-1931-05 4.72V 12.8MHz OSCIN oUTPUT 4.7u 2.2k LCD ASSY (B38-0906-15) TXCO QTTCXO PLL_UL PLL_STB PLL_DAT PLL_CLK F401 L401 BATT F53-0324-05 D402 2.5A...

  • Page 40: Schematic Diagram

    TK-2212/2217 SCHEMATIC DIAGRAM TX-RX UNIT (X57-7120-XX) D4,7 FREQUENCY RF BUFFER AMP 220n VCO OSCILLATION (TX) T:3.42V CONTROL 2.73V /TX VCO 0.72V 2SC5108(Y) 180n 0.5p 1SV325 VCO/TX 2SK508NV(K52) 3.74V 2SC5108(Y) PLL IC F_IN AMP RT1P430U R:4.97V T:0.59V TX MODULATION MODULATOR DC SW/TX VCO 4.7k...
  • Page 41 TK-2212/2217 SCHEMATIC DIAGRAM TX-RX UNIT (X57-7120-XX) 4.74V T:4.9V D101,202 R108 C108 R112 T:1.11V RF AMP UPB1509GV TX/RX 1.5k RF SW 4.6V RF AMP VCC1 2.2V D101 VCC2 2SC5108(Y) C101 R103 C104 Q102 2SC4926YD 1000p HSC277 R:0.1V R:1.65V T:1.05V T:1.88V 1000p...
  • Page 42 TK-2212/2217 SCHEMATIC DIAGRAM ● Note : The components marked with a dot ( ) are parts of layer1. TX-RX UNIT (X57-7120-XX) L123 L124 ANT SW D103 TX DRIVE AMP TX FINAL AMP L121 L117 L118 L119 Q103 R:7.68V Q106 HVC131 T:1.88V...
  • Page 43 TK-2212/2217 SCHEMATIC DIAGRAM ● Note : The components marked with a dot ( ) are parts of layer1. TX-RX UNIT (X57-7120-XX) D4,7 L123 L124 FREQUENCY RF BUFFER AMP ANT SW 220n CONTROL VCO OSCILLATION (TX) T:3.42V 2.73V D103 /TX VCO 0.72V...

  • Page 44: Block Diagram

    TK-2212/2217 BLOCK DIAGRAM X57-712 IC404 BD4845FVE IC403 BD4840FVE IC1 MB15A02 PLL_DAT RESET PLL_CLK RESET PLL_STB D401 RB521S-30 IC401 XC6204B502MR Q4 2SK508NV(K52) D2,D4,D6,D7 1SV325 D10 1SV278 PROTECT Loop Q405 RT1P237U Filter Q5 RT1P430U 12.8MHz 5C_C L77-1931-05 Q403 CPH3317 QTTCXO Q3 2SK508NV(K52)
  • Page 45 TK-2212/2217 BLOCK DIAGRAM TX/RX:136.00~174.00MHz (TK-2212(K,M) TK-2217(M)) TX/RX:216.00~223.00MHz (TK-2217(M3)) Q2 2SC5108(Y) D103,D104,D105,D106 HVC131 Q6 2SC5108(Y) IC2 UPB1509GV Q9 2SC5108 D101,D202 HSC277 Q102 2SC4926YD Q103 2SK2596 Q106 2SK2595 BUFF DIVIDER Q104 RT1N141U Q109 RT1P441U IC101 TA75W01FU Q105 2SK879(Y) CURRENT Q108 2SK1824 DCSW...

  • Page 46: Level Diagram

    TK-2212/2217 LEVEL DIAGRAM...

  • Page 47: Ksc-31 / Knb-29N / Kbh-10

    TK-2212/2217 KSC-31 / KNB-29N / 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 48: Specifications

    KENWOOD ELECTRONICS SINGAPORE PTE LTD. 13, Boulevard Ney, 75018 Paris, France 1 Ang Mo Kio Street 63, Singapore 569110 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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