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Kenwood TK-360G Service Manual
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Kenwood TK-360G Service Manual

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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-360G

  • 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-360G/(N)/370G/(N) SERVICE MANUAL © E VERSIONS 2000-4 PRINTED IN JAPAN B51-8533-00(S) 570 Antenna (T90-0682-05):E, (N)E (T90-0684-05):E4, (N)E4 Knob (ENC) Knob (CHANNEL SELECTOR) (K29-5331-03) (K29-5341-03) Knob (VOL) Knob (VOL) (K29-5332-03) (K29-5332-03) Cabinet assy Cabinet assy (A02-2391-23) (A02-2385-23) Knob (PTT)

  • Page 3: General

    Merchandise received TX/RX 440~470 4.0W TK-360G E TK-370G E TX/RX 440~470 4.0W TK-360G (N)E TK-370G (N)E Choose the type of transceiver TX/RX 403~430 4.0W TK-360G E4, (N)E4 Transceiver programming A personal computer (IBM PC or compatible), programming interface (KPG-22), and programming software (KPG-56D) are required for programming.

  • Page 4: Operating Features

    • 2-Tone Encode Select: To transmit using a 2-Tone • TK-360G code, press the PTT switch and the 2-Tone Encode Power switch/ Channel selector...
  • Page 5 TK-360G/(N)/370G/(N) OPERATING FEATURES ° • , 2 2 2 2 2 ,3 3 3 3 3 keys u u u u u 2. Programmable keys These are PF (Programmable Function) keys. Press The functions the FPU programs to the function keys are each key to activate its auxiliary function.
  • Page 6 TK-360G/(N)/370G/(N) OPERATING FEATURES 10) RF power low 3. Display (TK-370G only) Used to temporarily switch transmission output to low power. Turning the function on enables: Hi→Low, Low→Low Key states are backed up, except in the PC mode when they are reset.
  • Page 7 TK-360G/(N)/370G/(N) OPERATING FEATURES 3) Scan Stop Condition 6 Selected with talkback The scan stops temporarily if the following conditions are The transceiver reverts to the channel before scanning or satisfied. the channel that you changed during scan. 1 The receiving signal matches the signalling code in your 8) Scan End radio that is set by the programming software (KPG-56D).
  • Page 8 TK-360G/(N)/370G/(N) OPERATING FEATURES 4) Battery Warning 6. Option Signalling (DTMF/2 tone) This transceiver has a battery warning feature. If low voltage Built-in DTMF decoder is available for option signalling. is detected during transmission, the transceiver warns you by Built-in 2-Tone decoder is available for option signalling.
  • Page 9 TK-360G/(N)/370G/(N) OPERATING FEATURES / REALIGNMENT 7. Audible user feedback tones (TK-370G REALIGNMENT only) 1. Modes The transceiver outputs various combinations of tones to notify the user of the transceiver operating state. The main User mode tones are listed below Panel test mode...

  • Page 10: Realignment

    4. Set the firmware to be updated by File select (=F1). PC or compatible) with the interface cable (KPG-22). 5. Hold down the [Side1] and [Side2] switches on the TK-360G/ (Connection is the same as in the PC Mode.) 370G, and press the power switch.

  • Page 11: Clone Mode

    1. If you press the [Side2] switch while "PROG XXX" is on the display. displayed, the checksum is displayed. If you press the (Since the TK-360G does not have a display, check the [Side2] switch again (while the checksum is displayed), checksum with the FPU (KPG-56D).) "PROG XXX"...
  • Page 12 TK-360G/(N)/370G/(N) REALIGNMENT Cloning cable parts No. E30-3411-05 (TK-370G→TK-860G/862G) E30-3410-05 (TK-370G→TK-360G/370G) PTT/RXD PTT/RXD PTT/RXD REMOTE/TXD REMOTE/TXD REMOTE/TXD Cloning cable Fig. 2 8. Self Programming Mode (TK-370G) Write mode for frequency data and signalling etc. Mainly used by the person maintaining the user equipment.
  • Page 13 Wide 4K Semiwide -W4K Press [Side2] to set the display to "SELF" and return to reset 11 Scan DELETE SCAN_DEL Not used for TK-360G (default) status. Delete/ADD ADD SCAN_ADD Default All channel data is cleared when pressing [2] key with the 12 Priority P.CH_NO__ Not used when (Scan) Priority is not Fixed.
  • Page 14 [Side1] [Side1] 1 [Side1] No Function LAMP_OFF Default (TK-360G) [2]/[3] [Side2] Talk Around LAMP_3 * TK-360G cannot be selected. option signaling K, M and E destinations only [2]/[3] Display Character LAMP_5 * TK-360G cannot be selected. [Side2] Data clear Home Channel LAMP_7 * TK-360G cannot be selected.
  • Page 15 5 [2]TK-370G No Function KEY3_OFF RF Power Low MON_21 only Talk Around KEY3_3 Default Scan MON_22 * TK-360G cannot be selected. Display Character KEY3_5 Scan DEL/ADD MON_23 * TK-360G cannot be selected. Home Channel KEY3_7 Group Down MON_24 * TK-360G cannot be selected.
  • Page 16 18 Squelch Level 0-9/1 Step SQL__5 Default;5 Others 19 Priority None PRI_NONE Default 40 Panel Test/panel Enable PTM_ENA Default (Not used for TK-360G.) Fixed PRI_FIX_ Tuning MODE Disable PTM_DIS Selected PRI_SEL_ 20 Lock Back 0.5-5.0/0.05 LBA_500 Default:500ms Cannot be Time A set when Priority = none.
  • Page 17 When the memory is reset, mode data and model data are [ ] key function Revert channel not reset. [2]/[3] [2]/[3] [Side1] [Side1] The TK-360G cannot reset the memory. [ ] key function Dropout delay time [2]/[3] [2]/[3] [Side1] [Side1] key function...

  • Page 18: Disassembly For Repair

    TK-360G/(N)/370G/(N) DISASSEMBLY FOR REPAIR Separating the case assembly from the chassis. Separating the chassis from the unit. • TK-360G 1. Remove the two knobs and three round units 2. Remove the two screws 1. Remove the twelve small screws , and remove the three 3.

  • Page 19: Circuit Description

    TK-360G/(N)/370G/(N) CIRCUIT DESCRIPTION 3) IF Amplifier circuit 1. Frequency configuration The first IF signal is passed through a four-pole monolithic The receiver utilizes double conversion. The first IF is 49.95 crystal filter (XF1) to remove the adjacent channel signal. MHz and the second IF is 450 kHz. The first local oscillator The filtered first IF signal is amplified by the first IF amplifier signal is supplied form the PLL circuit.
  • Page 20 TK-360G/(N)/370G/(N) CIRCUIT DESCRIPTION 5) Audio amplifier circuit (3) DTMF The demodulated signal from IC4 is amplified by IC16 (2/2), The DTMF input signal from the IF IC(IC4) is amplified by high-pass filtered, low-pass filtered, high-pass filtered, band- IC16(2/2) and goes to IC18, the DTMF decoder. The decoded eliminate filtered, and de-emphasized by IC14.

  • Page 21: Power Supply

    TK-360G/(N)/370G/(N) CIRCUIT DESCRIPTION 3) UNLOCK DETECTOR If a pulse signal appears at the LD pin of IC2, an unlock From Pre-DRIVE DRIVE condition occurs, and the DC voltage obtained form D1, T/R SW POWER AMP (D5) R1, and C6 causes the voltage applied to the microprocessor to go low.
  • Page 22 TK-360G/(N)/370G/(N) CIRCUIT DESCRIPTION 3) Low battery warning 6. Control Circuit The battery voltage is monitored by the microprocessor The control circuit consists of a microprocessor (IC13) and (IC13). When the battery voltage falls below the voltage set by its peripheral circuits. It controls the TX-RX unit and transfers the Low Battery Warning adjustment, the LED flashes red to data to and from the display unit.
  • Page 23 TK-360G/(N)/370G/(N) CIRCUIT DESCRIPTION/SEMICONDUCTOR DATA 8. CONTROL SYSTEM Keys and channel selector circuit. The signal from keys and channel selector input to microprocessor directly as shown in fig. 10. Channel selector KEYAD LAMP IC13 MONI 100k TK-360G CN501 TK-370G ∗ Fig. 10 Control system...

  • Page 24: Semiconductor Data

    DTME IC decode data input SFTSTB Shift register strobe output Encoder pulse input 1 DACS Chip select output(Max dev) Select:L Shift register 1:BU4094BCFV(IC5) CH selector input (TK-360G) Pin function AUX4 Option board port 4 *Smar Trunk: Port Function Data output...

  • Page 25: Description Of Components

    TK-360G/(N)/370G/(N) DESCRIPTION OF COMPONENTS DISPLAY UNIT (X54-3250-10) (TK-370G Only) Ref. No. Use/Function Operation/Condition Ref. No. Use/Function Operation/Condition Transistor DC switch / LED (Red) IC501 LCD driver Transistor DC switch / LED (Green) Q501 Transistor Current driver / LCD back light LED AVR...

  • Page 26: Parts List

    TK-360G/(N)/370G/(N) PARTS LIST CAPACITORS CC 45 TH 1H Capacitor value Color* CC45 010 = 1pF 0 = 22pF 100 = 10pF 1 = Type ... ceramic, electrolytic, etc. 4 = Voltage rating Multiplier 2 = Shape ... round, square, ect.

  • Page 27: Packing

    CHIP R 1/16W ∗ J32-0925-04 HEXAGON BOSS 370G R517 RK73GB1J103J CHIP R 1/16W R518 RK73GB1J471J CHIP R 1/16W ∗ K29-5331-03 KNOB (ENCODER) 370G R519-522 RK73GB1J102J CHIP R 1.0K 1/16W 360G : TK-360G E, E4, (N)E, (N)E4 370G : TK-370G E, (N)E...

  • Page 28: Display Unit (X54-3250-10)

    CC73GCH1H040B CHIP C 4.0PF A,B,E,F Q502 2SC4617(S) TRANSISTOR CK73GB1H471K CHIP C 470PF TX-RX UNIT (X57-5882-XX) -71:TK-360G E, -72:TK-360G (N)E, -73:TK-370G E, -74:TK-370G (N)E, -75:TK-360G (N)E4, -76:TK-360G E4 CK73FB1C474K CHIP C 0.47UF CK73GB1H471K CHIP C 470PF B30-2019-05 LED(RED/GRN) CK73FB1C474K CHIP C 0.47UF...
  • Page 29 C271 CK73GB1H102K CHIP C 1000PF C302 CC73GCH1H010B CHIP C 1.0PF A,B,E,F C202,203 CK73GB1C104K CHIP C 0.10UF A : TK-360G E D : TK-360G E4 B : TK-360G (N)E E : TK-370G E C : TK-360G (N)E4 F : TK-370G (N)E...

  • Page 30: Tx-Rx Unit (X57-588X-Xx)

    1/16W RK73GB1J124J CHIP R 120K 1/16W A,B,E,F L40-1092-81 SMALL FIXED INDUCTOR RK73GB1J394J CHIP R 390K 1/16W A : TK-360G E D : TK-360G E4 B : TK-360G (N)E E : TK-370G E C : TK-360G (N)E4 F : TK-370G (N)E...
  • Page 31 CHIP R 0 OHM RN73GH1J154D CHIP R 150K D 1/16W R131 RK73GB1J101J CHIP R J 1/16W A : TK-360G E D : TK-360G E4 B : TK-360G (N)E E : TK-370G E C : TK-360G (N)E4 F : TK-370G (N)E...
  • Page 32 0 OHM R204 RK73GB1J104J CHIP R 100K J 1/16W R314 RK73GB1J224J CHIP R 220K J 1/16W A : TK-360G E D : TK-360G E4 B : TK-360G (N)E E : TK-370G E C : TK-360G (N)E4 F : TK-370G (N)E...
  • Page 33 2SC4226(R24) TRANSISTOR Q3-5 2SC5108(Y) TRANSISTOR 2SC4988 TRANSISTOR 2SJ243 UMC4 TRANSISTOR DTC144EE DIGITAL TRANSISTOR 2SK508NV(K52) 2SC4617(S) TRANSISTOR A : TK-360G E D : TK-360G E4 B : TK-360G (N)E E : TK-370G E C : TK-360G (N)E4 F : TK-370G (N)E...

  • Page 34: Exploded View

    TK-360G/(N)/370G/(N) EXPLODED VIEW (TK-360G) 50 37 TX-RX unit (A/2) A M3.6x4 :N09-2319-05 TX-RX unit (B/2) B M2x3.5 :N09-2331-05 C NUT :N14-0582-14 D NUT :N14-0583-04 E NUT :N14-0588-04 F M2.6x6 :N30-2606-46 G M3x4 :N30-3004-46 I M2x5 :N67-2005-46 J φ 2x4.5 :N78-2045-46 K φ...
  • Page 35 TK-360G/(N)/370G/(N) EXPLODED VIEW (TK-370G) 50 37 DISPLAY unit J32-0925-04 TX-RX unit (A/2) TX-RX unit (B/2) A M3.6x4 :N09-2319-05 B M2x3.5 :N09-2331-05 C NUT :N14-0582-14 D NUT :N14-0583-04 F M2.6x6 :N30-2606-46 H M2x3 :N39-2030-46 I M2x5 :N67-2005-46 J φ 2x4.5 :N78-2045-46 K φ...
  • Page 36 TK-360G/(N)/370G/(N) PACKING 32.PACKING FIXTURE (H12-1487-02) 33.PROTECTION BAG (H25-0085-04) 45.BELT HOOK (J29-0624-03) ANT. WHIP ANTENNA 34.PROTECTION BAG 7. INSTRUCTION MANUAL (T90-0682-05) : E, (N)E (H25-2012-04) (B62-1293-20) : 360G (T90-0684-05) : E4, (N)E4 INSTRUCTION MANUAL (B62-1294-10) : 370G 4. CAP (SP/MIC) (B09-0351-03) 41.SP/MIC HOLDER...
  • Page 37 TK-360G/(N)/370G/(N) ADJUSTMENT Test Equipment Required for Alignment Test Equipment Major Specifications Standard Signal Generator Frequency Range 440 to 470MHz (E, (N)E) 403 to 430MHz (E4, (N)E4) (SSG) Modulation Frequency modulation and external modulation. Output -127dBm/0.1µV to greater than -47dBm/1mV Power Meter Input Impedance 50Ω.
  • Page 38 TK-360G/(N)/370G/(N) ADJUSTMENT The following parts are required for adjustment Repair Jig (Extention Flat cable : part No. E37-0851-05) 1. Antenna connector adapter The antenna connector of this radio uses an SMA terminal. This cable is used for connecting the TK-370G display unit Use an antenna connector adapter [SMA(f) –...
  • Page 39 TK-360G/(N)/370G/(N) ADJUSTMENT Frequency and signalling • Transceiver tuning The set has been adjusted for the frequencies shown in the (To place the transceiver in tuning mode) following table. When required. re-adjust them following the Channel appears on the LCD. Set the channel according to adjustment procedure to obtain the frequencies you want in the tuning requirements.
  • Page 40 TK-360G/(N)/370G/(N) ADJUSTMENT Tuning mode H P O W Hi Power Hi Power (Low) Hi Power (Low’) Hi Power (Cen) Hi Power (Hi’) Hi Power (Hi) L P O W Low Power Low Power (Low) Low Power (Low’) Low Power (Cen) Low Power (Hi’)
  • Page 41 TK-360G/(N)/370G/(N) ADJUSTMENT Since the TK-360G cannot be tuned from the panel, the FPU (KPG-56D) should be used for adjustment. Note Precision parts are used for the PTT, side1, and side2 switches. In order to avoid damaging these switches, do not press them using your fingers. However, if it is necessary to press these switches, be sure to press them at 90˚...
  • Page 42 TK-360G/(N)/370G/(N) ADJUSTMENT Measurement Adjustment Specifications/ Item Condition Remark Test equipment Terminal Parts Method 6. Low Power [Panel Test Mode] Check 1) CH-Sig:1-1 Check 0.5~1.5W Set low power (Push [2]) 1.2A or less PTT:ON 2) CH-Sig:2-1 PTT:ON 3) CH-Sig:3-1 PTT:ON ±50Hz 7.
  • Page 43 TK-360G/(N)/370G/(N) ADJUSTMENT Measurement Adjustment Specifications/ Item Condition Remark Test equipment Terminal Parts Method 11.DQT VCO 3) Adj item [V D Q T Power meter Encoder Make the Balance Adjust [∗∗∗] Dev meter SP/MIC connector knob demodulation Adjust PTT:ON Oscilloscope waves into...
  • Page 44 TK-360G/(N)/370G/(N) ADJUSTMENT Measurement Adjustment Specifications/ Item Condition Remark Test equipment Terminal Parts Method ±50Hz 14.DQT 3) Adj item [FDQT Power meter Encoder Wide 5K:0.75kHz Devition Adjust [∗∗∗] Dev meter SP/MIC connector knob Narrow:0.35kHz Adjust PTT:ON Oscilloscope Wide 4K:0.6kHz [Wide 4K] E, E4 ±0.1kHz...
  • Page 45 TK-360G/(N)/370G/(N) ADJUSTMENT Measurement Adjustment Specifications/ Item Condition Remark Test equipment Terminal Parts Method E4, (N)E4 type 1. Sensitivity Adj item [SENS] Encoder knob : ([S E N S]) : [55] Adjustment Adjust [∗∗∗] : (S S) : [125] E N S]...
  • Page 46 TK-360G/(N)/370G/(N) ADJUSTMENT Measurement Adjustment Specifications/ Item Condition Remark Test equipment Terminal Parts Method E, (N)E type 1. Sensitivity Adj item [SENS] Encoder knob : ([S E N S]) : [66] Adjustment Adjust [∗∗∗] : (S S) : [135] E N S]...
  • Page 47 TK-360G/(N)/370G/(N) ADJUSTMENT Measurement Adjustment Specifications/ Item Condition Remark Test equipment Terminal Parts Method 6. Squelch(Tight) 1) Adj item [SQL9] Adjust to the Adjust Adjust [∗∗∗] squelch [Wide 5K] Wide:-116dBm E, E4 [Narrow] Narrow:-110dBm (N)E, (N)E4 [Wide 4K] 2) Adj item [SQL9.]...
  • Page 48 TK-360G/(N)/370G/(N) PC BOARD VIEW DISPLAY UNIT (X54-3250-10) Component Side View DISPLAY UNIT (X54-3250-10) Foil Side View DISPLAY UNIT (X54-3250-10) DISPLAY UNIT (X54-3250-10) Foil Side View Component Side View R518 R518 R513 R513 IC501 IC501 C515 C515 Q502 Q502 R517 R522...
  • Page 49 TK-360G/(N)/370G/(N) PC BOARD VIEW TX RX UNIT (X57-588X-XX) Component Side View 2-71:TK-360G E, 2-72:TK-360G (N)E, 2-76:TK-360G E4, 2-75:TK-360G (N)E4 2-73:TK-370G E, 2-74:TK-370G (N)E TX-RX UNIT (X57-588X-XX) R218 Component Side View C194 R118 R164 C184 R259 C209 R255 R123 R122 C261...
  • Page 50 TK-360G/(N)/370G/(N) PC BOARD VIEW TX RX UNIT (X57-588X-XX) Foil Side View 2-71:TK-360G E, 2-72:TK-360G (N)E, 2-76:TK-360G E4, 2-75:TK-360G (N)E4 2-73:TK-370G E, 2-74:TK-370G (N)E TX-RX UNIT (X57-588X-XX) R108 Foil Side View C241 C146 R320 MIC1 R258 C126 C131 C108 C139 C107...
  • Page 51 PF0314-03 PC BOARD VIEW TX-RX UNIT (X57-588X-XX) Component Side + Foil Side View TX RX UNIT (X57-588X-XX) Component Side View + Foil Side View 2-71:TK-360G E, 2-72:TK-360G (N)E, 2-76:TK-360G E4, 2-75:TK-360G (N)E4 2-73:TK-370G E, 2-74:TK-370G (N)E R108 R218 C241 C194...

  • Page 52: Schematic Diagram

    TK-360G/(N) SCHEMATIC DIAGRAM • Note) Component marked with a dot ( ) are Parts of pattern 1.
  • Page 53 TK-370G/(N) SCHEMATIC DIAGRAM • Note) Component marked with a dot ( ) are Parts of pattern 1.

  • Page 54: Block Diagram

    TK-360G/(N)/370G/(N) TK-360G/(N)/370G/(N) BLOCK DIAGRAM...

  • Page 55: Level Diagram

    TK-360G/(N)/370G/(N) TK-360G/(N)/370G/(N) LEVEL DIAGRAM KNB-14/KNB-15A (Ni-Cd BATTERY) KNB-14 CIRCUIT DIAGRAM SPECIFICATIONS Voltage : 7.2V (1.2V x 6) Charging current : 600mAh Dimensions : 60.8W x 110.8H x 17.3D (mm) Discharge pin side (projections included) Charger and charging time: KSC-15 (normal charger), approximately 8 hours...

  • Page 56: Options

    TK-360G/(N)/370G(N) OPTIONS KMC-17 (Speaker microphone) KMC-17 Parts List Ref. No. Parts No. Description parts marks A02-0907-08 Case (Front) A02-0908-08 Case (Rear) B09-0316-08 D10-0606-08 Lever (PTT) E11-0421-05 Phone jack E30-3138-08 Curl cord F07-0889-08 Silicon rubber (PTT) G53-0569-08 Packing (MIC case) J29-0440-08...

  • Page 57: Specifications

    SPECIFICATIONS General Frequency Range ............. 440~470MHz (E, (N)E) 403~430MHz (E4, (N)E4) Number of channels ............Max. 8 (TK-360G) Max. 128 (TK-370G) Number of groups ............Max. 128 (TK-370G) Channel Spacing .............. 25kHz (Wide) 20kHz (Semi wide) 12.5kHz (Narrow) PLL Step ................5kHz, 6.25kHz Operating Voltage ............

This manual is also suitable for:

Tk-360nTk-370gTk-370nTk-360gnTl-370gTl-370gn

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