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Kenwood TK-360G Service Manual

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See also: Service Manual , Instruction Manual
UHF FM TRANSCEIVER
TK-360G/370G
SERVICE MANUAL
Knob (PTT)
(K29-5334-13)
Knob (MON1)
(K29-5333-13)
GENERAL ...................................................................... 2
SYSTEM SET-UP .......................................................... 2
OPERATING FEATURES .............................................. 3
REALIGNMENT ............................................................. 8
DISASSEMBLY FOR REPAIR ..................................... 16
CIRCUIT DESCRIPTION ............................................. 17
SEMICONDUCTOR DATA .......................................... 21
DESCRIPTION OF COMPONENTS ............................ 23
PARTS LIST ................................................................. 24
EXPLODED VIEW ....................................................... 30
Antenna
(T90-0682-05):M
Knob (CHANNEL SELECTOR)
(K29-5341-03)
Knob (VOL)
(K29-5332-03)
Cabinet assy
(A02-2391-23)
Knob (PTT)
(K29-5334-13)
Knob (MON1)
(K29-5333-13)
TK-360G
M market models are shown.
CONTENTS
©
1999-9 PRINTED IN JAPAN
B51-8494-00(S) 1574
Knob (ENC)
(K29-5331-03)
Knob (VOL)
(K29-5332-03)
Cabinet assy
(A02-2385-23)
Key top (DTMF)
(K29-5330-02)
TK-370G
PACKING ..................................................................... 32
ADJUSTMENT ............................................................. 33
DISPLAY UNIT (X54-3250-10) ............................... 41
TX-RX UNIT (X57-588X-XX) .................................. 43
SCHEMATIC DIAGRAM .............................................. 49
BLOCK DIAGRAM ....................................................... 57
LEVEL DIAGRAM ........................................................ 59
KNB-14/KNB-15A (Ni-Cd BATTERY) .......................... 60
OPTIONS ..................................................................... 61
SPECIFICATIONS ................................... BACK COVER

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Summary of Contents for Kenwood TK-360G

  • Page 1: Table Of Contents

    UHF FM TRANSCEIVER TK-360G/370G SERVICE MANUAL © 1999-9 PRINTED IN JAPAN B51-8494-00(S) 1574 Antenna (T90-0682-05):M Knob (CHANNEL SELECTOR) Knob (ENC) (K29-5341-03) (K29-5331-03) Knob (VOL) Knob (VOL) (K29-5332-03) (K29-5332-03) Cabinet assy Cabinet assy (A02-2391-23) (A02-2385-23) Knob (PTT) Knob (PTT) (K29-5334-13) (K29-5334-13)

  • Page 2: General

    ORDERING REPLACEMENT PARTS WE CANNOT guarantee oscillator stability when using When ordering replacement parts or equipment channel element manufactured by other than KENWOOD or information, the full part identification number should be its authorized agents. included. This applies to all parts, components, kits, or chassis.

  • Page 3: 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 4 TK-360G/370G 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 5 DTMF Signallling call. Also appears when you transmit using Code Squelch Note: or Selective Call. The code for the TK-360G is not selectable. Appears while scanning. You cannot change the tone in step 2 by using the Channel Up and Channel Down keys.
  • Page 6 TK-360G/370G 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 7 TK-360G/370G 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 8: Realignment

    TK-360G/370G 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 9 360G/370G to the computers RS-232C serial port. 4. Set the firmware to be updated by File select (=F1). 5. Hold down the [LAMP] and [MON] switches on the TK-360G/ 5-4. Programming software description The KPG-56D programming disk is supplied in 3-1/2” disk 370G, and press the power switch.

  • Page 10: Clone Mode

    TK-360G/370G REALIGNMENT 9. If you want to continue programming other TK-360G/ Note: You can clone the programmed data between the 370Gs, repeat steps 5 to 8. transceiver listed below. Frequency version must be same. Notes: Slave TK-360G TK-360G TK-860G TK-860G To start the Firmware Programmer from KPG-56D, the Fpro path must be set up by the KPG-56D Setup.
  • Page 11 TK-360G/370G REALIGNMENT 8. Self Programming Mode (TK-370G) Write mode for frequency data and signalling etc. Mainly X57-588X used by the person maintaining the user equipment. Compoent Side 8.1 Self programming mode setting Remove D17 from the TX-RX unit (Figure 3) (K models only).
  • Page 12 Low Power PWR_L___ Data clear 10 Wide/Narrow Wide WIDE____ [LAMP] Narrow NARROW__ [2]/[3] 11 Scan DELETE SCAN_DEL Not used for TK-360G [MON] Busy channel lockout Delete/ADD ADD SCAN_ADD Default 12 Priority P.CH_NO__ Not used when (Scan) Priority is not Fixed. [2]/[3] Channel P.CH_YES_...
  • Page 13 Pressing the [LAMP] when "SELF" is displayed, sets the RF Power Low MON_21 Function Setting Mode. Scan MON_22 * TK-360G cannot be selected. Select an item set using [3] then change the selection with the encoder. Scan DEL/ADD MON_23 * TK-360G cannot be selected.
  • Page 14 TK-360G/370G REALIGNMENT No. Function Choices Display Remarks No. Function Choices Display Remarks 13 TOT OFF1-60/ TOTK_OFF Cannot be set when TOT is OFF. 5 [2]TK-370G No Function KEY3_OFF only Talk Around KEY3_3 Default Rekey Time 1s Step Default:OFF 14 TOT OFF1-15/ TOTS_OFF Cannot be set when TOT is OFF.
  • Page 15 When the memory is reset, mode data and model data are T.O.T. Pre-alert time No. of DTMF key not reset. [2]/[3] [2]/[3] [LAMP] [LAMP] The TK-360G cannot reset the memory. T.O.T. Rekey time DTMF hold time [2]/[3] [2]/[3] [LAMP] [LAMP] T.O.T. Reset time Store &...

  • Page 16: Disassembly For Repair

    TK-360G/370G 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 17: Circuit Description

    TK-360G/370G 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 18 TK-360G/370G CIRCUIT DESCRIPTION 5) Audio amplifier circuit (3) DTMF (High-speed data) 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 19: Power Supply

    TK-360G/370G 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 20 TK-360G/370G 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 21: Semiconductor Data

    TK-360G/370G 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 22 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 23: Description Of Components

    TK-360G/370G 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 24: Parts List

    J32-0925-04 HEXAGON BOSS 370G R524 RK73GB1J471J CHIP R J 1/16W K29-5330-02 KEY TOP(DTMF) 370G D501-504 MA2S111 DIODE K29-5331-03 KNOB(ENCODER) 370G D505 1SS373 DIODE 1B,1D K29-5332-03 KNOB(VOLUME) 360G : TK-360G (K),(M) M : TK-360G(M),TK-370G(M) 370G : TK-370G (K),(M) K : TK-360G(K),TK-370G(K)
  • Page 25 CHIP C 47PF Q501 2SB1132(Q,R) TRANSISTOR CC73GCH1H010C CHIP C 1.0PF Q502 2SC4617(S) TRANSISTOR CK73GB1H102K CHIP C 1000PF TX-RX UNIT (X57-5880-XX) -10:TK-360G K,M C84,85 CK73GB1H471K CHIP C 470PF -11:TK-370G K, -21:TK-370G M C86,87 CC73GCH1H100D CHIP C 10PF B30-2019-05 LED(RED/GRN) CC73GCH1H040B CHIP C 4.0PF...
  • Page 26 CHIP C 2700PF L33-0744-05 SMALL FIXED INDUCTOR L5 -7 L34-4547-05 AIR-CORE COIL C241 CK73GB1H471K CHIP C 470PF C242 C92-0560-05 CHIP-TAN 10UF 6.3WV L40-1575-92 SMALL FIXED INDUCTOR(15NH) 360G : TK-360G (K),(M) M : TK-360G(M),TK-370G(M) 370G : TK-370G (K),(M) K : TK-360G(K),TK-370G(K)
  • Page 27 180K J 1/16W RK73GB1J472J CHIP R 4.7K J 1/16W RK73GB1J332J CHIP R 3.3K J 1/16W RK73GB1J102J CHIP R 1.0K J 1/16W RK73GB1J391J CHIP R J 1/16W 360G : TK-360G (K),(M) M : TK-360G(M),TK-370G(M) 370G : TK-370G (K),(M) K : TK-360G(K),TK-370G(K)
  • Page 28 J 1/16W R151 RK73GB1J473J CHIP R J 1/16W R224 RK73GB1J103J CHIP R J 1/16W R152 RK73GB1J823J CHIP R J 1/16W R225 RK73GB1J153J CHIP R J 1/16W 360G : TK-360G (K),(M) M : TK-360G(M),TK-370G(M) 370G : TK-370G (K),(M) K : TK-360G(K),TK-370G(K)
  • Page 29 VARIABLE CAPACITANCE DIODE MA2S111 DIODE D13 ,14 DAN235E DIODE HSC277 DIODE MA2S111 DIODE MA2S111 DIODE 360G 1SS373 DIODE 1SR154-400 DIODE RB706F-40 DIODE M68732H IC(POWER MODULE(450-470MHz)) MB15A02 NJM2904V IC(APC) 360G : TK-360G (K),(M) M : TK-360G(M),TK-370G(M) 370G : TK-370G (K),(M) K : TK-360G(K),TK-370G(K)

  • Page 30: Exploded View

    TK-360G/370G EXPLODED VIEW (TK-360G) 50 37 TX-RX unit (A/2) A M2.6x4 :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 J φ 2x4.5 :N78-2045-46 K φ 2x3 :N79-2030-46 L φ...
  • Page 31 TK-360G/370G EXPLODED VIEW (TK-370G) 50 37 DISPLAY unit J32-0925-04 TX-RX unit (A/2) TX-RX unit (B/2) A M2.6x4 :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 32: Packing

    TK-360G/370G PACKING 32.PACKING FIXTURE (H12-1487-02) 33.PROTECTION BAG (H25-0085-04) 7. WARRANTY CARD (B46-0470-00) : K 45.BELT HOOK (J29-0624-03) 34.PROTECTION BAG ANT. WHIP ANTENNA (H25-2012-04) (T90-0862-05) : M 8. INSTRUCTION MANUAL (B62-1113-00) : 370G 4. CAP (SP/MIC) 9. INSTRUCTION MANUAL (B09-0351-03) (B62-1129-00) : 360G 41.SP/MIC HOLDER...

  • Page 33: Adjustment

    TK-360G/370G ADJUSTMENT Test Equipment Required for Alignment Test Equipment Major Specifications Standard Signal Generator Frequency Range 450 to 470MHz (SSG) Modulation Frequency modulation and external modulation. Output -127dBm/0.1µV to greater than -47dBm/1mV Power Meter Input Impedance 50Ω. Operation Frequency 450 to 470MHz or more.
  • Page 34 TK-360G/370G ADJUSTMENT Frequency and signalling Repair Jig (Extention Flat cable : part No. The set has been adjusted for the frequencies shown in the E37-0851-05) following table. When required. re-adjust them following the adjustment procedure to obtain the frequencies you want in This cable is used for connecting the TK-370G display unit actual operation.
  • Page 35 TK-360G/370G ADJUSTMENT ° Press [ ], to enter tuning mode. Use the [2 ] key to write Panel Tuning Mode tuning data through the tuning modes, and the channel selector 450-470(MHz) knob to adjust the tuning requirements (1 to 256 appears on...
  • Page 36 TK-360G/370G ADJUSTMENT Since the TK-360G cannot be tuned from the panel, the FPU (KPG-56D) should be used for adjustment. Common Section Measurement Adjustment Specifications/ Item Condition Remark Test equipment Terminal Parts Method 1. Setting 1) BATT terminal voltage:7.5V 2) SSG Standard modulation [Wide] MOD:1kHz, DEV:3kHz [Narrow] MOD:1kHz, DEV:1.5kHz...
  • Page 37 TK-360G/370G ADJUSTMENT Measurement Adjustment Specifications/ Item Condition Remark Test equipment Terminal Parts Method ±50Hz 7. Max DEV 1) Adj item [MAX] Power meter Encoder 4.2kHz Adjust Adjust [∗∗∗] Dev meter SP/MIC connector knob (According to [Wide] AG:1kHz / 150mV Oscilloscope...
  • Page 38 TK-360G/370G ADJUSTMENT Measurement Adjustment Specifications/ Item Condition Remark Test equipment Terminal Parts Method 14.DQT 1) Adj item [FDQT] Power meter Encoder Wide:0.75kHz MAX Devition Adjust [∗∗∗] Dev meter SP/MIC connector knob Narrow:0.40kHz MAX Adjust LPF:3kHz Oscilloscope HPF:OFF [Wide] 2) Adj item D Q T] Adjust [∗∗∗]...
  • Page 39 TK-360G/370G ADJUSTMENT Measurement Adjustment Specifications/ Item Condition Remark Test equipment Terminal Parts Method 1. BPF (PANEL TEST MODE) Tracking generator TC301, TC302, Adjust wave form to figure 1. Adjustment CH-Sig 1-1 Spectrum analyzer TC303 Tra-G setting -40dBm Fig. 1 BPF-WAVE 2.
  • Page 40 TK-360G/370G ADJUSTMENT Adjustment points TX-RX unit (X57-588) Component side view Foil Side View TC301 TC303 TC302 Battery terminal IC12 IC14 TC1 : Transmit lock voltage adjustment VR1 : Frequency adjustment TC2 : Receive lock voltage adjustment TC301 : TC302 :...

  • Page 41: Pc Board Views

    TK-360G/370G 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 R513 IC501 C515 Q502 R522 R517 Q501 CP501 L501 D502 C506...

  • Page 42: Tx-Rx Unit (X57-588X-Xx)

    TK-360G/370G PC BOARD VIEW TX RX UNIT (X57-5880-XX) Component Side View -10:TK-360G K, M, -11:TK-370G K, -21:TK-370G M TX-RX UNIT (X57-5880-XX) R218 Component Side View C194 R165 R118 C184 R259 C209 R164 R123 R122 C202 C261 C207 R170 C216 R147...
  • Page 43 TK-360G/370G PC BOARD VIEW TX RX UNIT (X57-5880-XX) Foil Side View -10:TK-360G K, M, -11:TK-370G K, -21:TK-370G M TX-RX UNIT (X57-5880-XX) Foil Side View R108 C241 C146 MIC1 R258 C126 C131 C108 C139 C107 C115 C124 C130 C314 C137 C136...
  • Page 44 FP210 TK-360G/370G PF0314-03 PC BOARD VIEW TX-RX UNIT (X57-5880-XX) Component Side + Foil Side View TX RX UNIT (X57-5880-XX) Component Side View + Foil Side View -10:TK-360G K, M, -11:TK-370G K, -21:TK-370G M R218 C241 R108 C194 C146 R165 R118...

  • Page 45: Schematic Diagram

    TK-360G/370G SCHEMATIC DIAGRAM • Note) Component marked with a dot ( ) are Parts of pattern 1.
  • Page 46 TK-360G/370G SCHEMATIC DIAGRAM Note) Component marked with a dot ( • ) are Parts of pattern 1.

  • Page 47: Block Diagram

    TK-360G/370G TK-360G/370G BLOCK DIAGRAM...

  • Page 48: Level Diagram

    TK-360G/370G TK-360G/370G 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 49: Options

    TK-360G/370G 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 50: Specifications

    TK-360G/370G SPECIFICATION General Frequency Range ............450~470MHz Number of channels ............Max. 8 (TK-360G) Max. 128 (TK-370G) Number of groups ............Max. 128 (TK-370G) Channel Spacing .............. 25kHz (Wide) 12.5kHz (Narrow) PLL Step ................2.5kHz, 5kHz, 6.25kHz Operating Voltage ............7.5 VDC Battery Life ...............

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Tk-370g

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