Kenwood TK-3140 Service Manual
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Kenwood TK-3140 Service Manual

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UHF FM TRANSCEIVER
TK-3140
SERVICE MANUAL
SUPPLEMENT
Knob (PTT)
(K29-9131-03)
Key top
(SW1,SW2)
(K29-9132-03)
Does not come with antenna.
Antenna is available as an option.
This TK-3140 service manual contains a number of sections which
differ from the service manual (B51-8603-00) for the TK-3140.
For items other than those in this TK-3140 service manual please
refer to the service manual (B51-8603-00) for the TK-3140.
Antenna
GENERAL ................................................................................. 2
(KRA-23:option)
SYSTEM SET-UP ..................................................................... 2
Knob (ENC)
SEMICONDUCTOR DATA ....................................................... 3
PARTS LIST .............................................................................. 4
EXPLODED VIEW .................................................................. 12
ADJUSTMENT ........................................................................ 13
(K29-9133-03)
PC BOARD VIEWS
SCHEMATIC DIAGRAM ......................................................... 31
BLOCK DIAGRAM .................................................................. 35
LEVEL DIAGRAM ................................................................... 37
KBP-5,KRA-23 ........................................................................ 38
SPECIFICATIONS .................................................................. 39
Cabinet assy
(A02-3653-04)
©
2002-2 PRINTED IN JAPAN
B51-8621-00 (S) 1422
CONTENTS
TX-RX UNIT (X57-6410-10) .............................................. 21

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Summary of Contents for Kenwood TK-3140

  • Page 1: Table Of Contents

    This TK-3140 service manual contains a number of sections which differ from the service manual (B51-8603-00) for the TK-3140. For items other than those in this TK-3140 service manual please refer to the service manual (B51-8603-00) for the TK-3140. CONTENTS Antenna GENERAL .................

  • Page 2: General

    SYSTEM SET-UP Merchandise received Frequency range (MHz) RF power Type License and frequency allocated by FCC TX/RX 450~490 4.0W TK-3140 K TX/RX 470~512 TK-3140 K2 4.0W Choose the type of transceiver TX/RX 400~430 TK-3140 K3 4.0W...

  • Page 3: Semiconductor Data

    TK-3140 SEMICONDUCTOR DATA Microprocesser : 30620M8A-XXXGP (TX-RX UNIT : IC309) Pin function Port Port Function Function Name Name LSDO Low speed data output. (QT/DQT/LTR) HSDO High speed data output. (DTMF) Flash memory address bus. HSDI High speed data input. (2Tone) GND.

  • Page 4: K29-9134-03

    6.0PF K,K3 CC73GCH1H030B CHIP C 3.0PF K2,K3 K29-9131-03 KNOB(PTT) CC73GCH1H040B CHIP C 4.0PF K29-9132-03 KEY TOP(SW1,SW2) CC73GCH1H010B CHIP C 1.0PF K29-9133-03 KNOB(VOL) K29-9134-03 KNOB(ENC) CC73GCH1H040B CHIP C 4.0PF K : TK-3140 K K3 : TK-3140 K3 K2 : TK-3140 K2...
  • Page 5 CHIP C 0.10UF C216 CK73HB1A104K CHIP C 0.10UF C135 CC73GCH1H080B CHIP C 8.0PF C217 CK73HB1H221K CHIP C 220PF C135 CC73GCH1H200G CHIP C 20PF K,K3 C218 CK73HB1A104K CHIP C 0.10UF K : TK-3140 K K3 : TK-3140 K3 K2 : TK-3140 K2...
  • Page 6 3.0PF C327 CK73GB1H103K CHIP C 0.010UF K C269 CC73GCH1H050B CHIP C 5.0PF C328 CK73GB1C683K CHIP C 0.068UF K C269 CC73GCH1H2R5B CHIP C 2.5PF C329 CK73GB0J105K CHIP C 1.0UF K : TK-3140 K K3 : TK-3140 K3 K2 : TK-3140 K2...
  • Page 7 L40-2278-67 SMALL FIXED INDUCTOR(22NH) K,K2 C508 CK73HB1A104K CHIP C 0.10UF L40-2778-67 SMALL FIXED INDUCTOR(27NH) L40-2778-67 SMALL FIXED INDUCTOR(27NH) K,K2 C509-511 CK73GB1H562J CHIP C 5600PF L40-3378-67 SMALL FIXED INDUCTOR(33NH) K : TK-3140 K K3 : TK-3140 K3 K2 : TK-3140 K2...
  • Page 8 CHIP-COM 1.0K J 1/16W R119,120 RK73EB2ER39K CHIP R 0.39 K 1/4W CP314 RK75HA1J473J CHIP-COM J 1/16W CP315 RK75HA1J102J CHIP-COM 1.0K J 1/16W R121 RK73HB1J273J CHIP R J 1/16W K : TK-3140 K K3 : TK-3140 K3 K2 : TK-3140 K2...
  • Page 9 CHIP R J 1/16W R237 RK73HB1J563J CHIP R J 1/16W R334 RK73HB1J184J CHIP R 180K J 1/16W R238 R92-1368-05 CHIP R 0 OHM R336-338 RK73HB1J223J CHIP R J 1/16W K : TK-3140 K K3 : TK-3140 K3 K2 : TK-3140 K2...
  • Page 10 RK73HB1J472J CHIP R 4.7K J 1/16W D100,101 HSC277 DIODE R409 RK73HB1J473J CHIP R J 1/16W D102-105 HVC131 DIODE R410,411 R92-1368-05 CHIP R 0 OHM D106 HZU5CLL ZENER DIODE K : TK-3140 K K3 : TK-3140 K3 K2 : TK-3140 K2...
  • Page 11 TRANSISTOR Q100 2SC5108(Y) TRANSISTOR Q101 2SC5192 TRANSISTOR Q103 2SK2596 Q104,105 DTC114EE DIGITAL TRANSISTOR Q106 2SK3476 Q107 2SK1824 Q108 DTA144EE DIGITAL TRANSISTOR Q201 DTC144EE DIGITAL TRANSISTOR Q202 RN47A4 TRANSISTOR K : TK-3140 K K3 : TK-3140 K3 K2 : TK-3140 K2...

  • Page 12: Exploded View

    TK-3140 EXPLODED VIEW TX-RX UNIT SUB PCB Parts with the exploded numbers larger than 700 are not supplied.

  • Page 13: Adjustment

    TK-3140 ADJUSTMENT • Sub LCD indicator Test Mode “FCN” appears at Function ON. Test mode operating features “n” appears at Narrow ON. This transceiver has a test mode. To enter test mode, press [A] key and turn power on. Hold [A] key until test Frequency and signalling channel No.
  • Page 14 TK-3140 ADJUSTMENT Signalling LCD display (Test mode) Signalling No. None None None 100Hz square LTR data LTR data QT 67.0Hz QT 67.0Hz channel No. Signalling No. QT 151.4Hz QT 151.4Hz Press [S], now in tuning mode. Use [2 B] button to write QT 210.7Hz...
  • Page 15 TK-3140 ADJUSTMENT Panel Tuning Mode flow chart FREQ Frequency adj. HPOW L HPOW L2 HPOW C HPOW H2 HPOW H HPOW Hi Power Hi Power (Low) Hi Power (Low 2) Hi Power (Cen) Hi Power (Hi 2) Hi Power (Hi)
  • Page 16 TK-3140 ADJUSTMENT Common Section Measurement Adjustment Specifications/ Item Condition Remark Test equipment Unit Terminal Unit 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 2. VCO lock [Panel Test Mode] 4.1V:K...
  • Page 17 TK-3140 ADJUSTMENT Measurement Adjustment Specifications/ Item Condition Remark Test equipment Unit Terminal Unit Parts Method 6. DQT Balance 1) Adj item [BAL] Power meter Panel Panel Encoder Make the Adjust Adjust [ Dev meter Universal knob demodulation [Wide] LPF:3kHz Oscilloscope...
  • Page 18 TK-3140 ADJUSTMENT Measurement Adjustment Specifications/ Item Condition Remark Test equipment Unit Terminal Unit Parts Method 11.LTR 1) Adj item [FLTR] Power meter Panel Panel Encoder 1.0kHz ±0.1kHz Deviation Adjust [ Dev meter Universal knov Adjust LPF:3kHz Oscilloscope connector HPF:OFF [Wide]...
  • Page 19 TK-3140 ADJUSTMENT Receiver Section Measurement Adjustment Specifications/ Item Condition Remark Test equipment Unit Terminal Unit Parts Method Adjustment 1. Sensitivity 1) Adj item [SENS] Tracking Panel Panel Encoder Turn a knob and make “fo” Adjust Adjust [ generator knob level 1dB above from peak (BPF level.

  • Page 20: Tx-Rx Unit (X57-6410-10)

    TK-3140 ADJUSTMENT Measurement Adjustment Specifications/ Item Condition Remark Test equipment Unit Terminal Unit Parts Method 5. Squelch 1) Adj item [T SQL] Panel Encoder Adjust to point Adjust Adjust [ AF VTVM Universal knob of opening 2) Adj item Oscilloscope connector squelch.
  • Page 21 TK-3140 PC BOARD VIEW TX-RX UNIT (X57-6410-XX) Component Side View (J72-0807-19) -10:TK-3140 K, -11:TK-3140 K2, -12:TK-3140 K3 J72-0807-19 CN500 MMUTE MICI 5CNS AFSTB C555 AFREG1 AFREG2 TXHSD AFDET TXAF AFMSKE RXAFI AFTRD AFRTM HSDIN AFRDT C554 RXAFO AFCLR XOUT C501...
  • Page 22 TK-3140 PC BOARD VIEW TX-RX UNIT (X57-6410-XX) Foil Side View (J72-0807-19) -10:TK-3140 K, -11:TK-3140 K2, -12:TK-3140 K3 TX-RX UNIT (X57-6410-XX) X500 J72-0807-19 R515 C519 C515 C536 CP500 CP501 C557 R519 R528 C556 R523 R529 R525 C527 IC500 C528 C543 C530...
  • Page 23 TK-3140 PC BOARD VIEW TX-RX UNIT (X57-6410-XX) Component Side View + Foil Side View (J72-0807-19) -10:TK-3140 K, -11:TK-3140 K2, -12:TK-3140 K3 TX-RX UNIT (X57-6410-XX) X500 J72-0807-19 C515 C519 R515 C536 CN500 CP501 CP500 C557 R519 R528 C556 R523 MMUTE MICI...
  • Page 24 TK-3140 PC BOARD VIEW TA75W01FU TDA7053AT 30620M8A-2N3GP TC75W51FU TX-RX UNIT (X57-6410-XX) (A/3) Component Side View (J72-0807-19) -10:TK-3140 K, -11:TK-3140 K2, -12:TK-3140 K3 TX-RX UNIT (A/3) (X57-6410-XX) 100 1 L314 L315 CN305 C375 R388 L311 D302 IC312 – IC311 C349 C362...
  • Page 25 TK-3140 PC BOARD VIEW TX-RX UNIT (X57-6410-XX) (A/3) Foil Side View (J72-0807-19) -10:TK-3140 K, -11:TK-3140 K2, -12:TK-3140 K3 TX-RX UNIT (A/3) (X57-6410-XX) C329 X200 R231 CF200 R232 C212 R238 L201 XF202 R226 C249 R253 L203 R276 R208 C280 C225 C250...
  • Page 26 TK-3140 PC BOARD VIEW LC73872M XC61CN5002NR 2SK3476 30620M8A-2N3GP TX-RX UNIT (X57-6410-XX) (A/3) Component Side View + Foil Side View (J72-0807-19) -10:TK-3140 K, -11:TK-3140 K2, -12:TK-3140 K3 100 1 TX-RX UNIT (A/3) (X57-6410-XX) L314 C329 L315 X200 CN305 C375 R388 L311...

  • Page 27: Schematic Diagram

    TK-3140 SCHEMATIC DIAGRAM • Note) Component marked with a dot ( ) are Parts of layer 1.

  • Page 28: Block Diagram

    TK-3140 TK-3140 BLOCK DIAGRAM...

  • Page 29: Level Diagram

    TK-3140 TK-3140 LEVEL DIAGRAM KBP-5 / KRA-23 KBP-5 BATTERY CASE KRA-23 UHF Helical Antenna M : 440-490MHz AA alkaline battery x 6 M2 : 470-520MHz M3 : 400-450MHz...

  • Page 30: Specifications

    TK-3140 SPECIFICATIONS General Frequency Range RX, TX ................K : 450 to 490MHz K2 : 470 to 512MHz K3 : 400 to 430MHz Systems ................Trunked Mode : Maximum 32 Groups ................Maximum 250 Channels ................Trunked Mode : Maximum 600 Conventional Mode : Maximum 250 Channel Spacing (Wide/Narrow) ........
  • Page 31 13, Boulevard Ney, 75018 Paris, France Sales Marketing Division KENWOOD ELECTRONICS U.K. LIMITED 1 Ang Mo Kio Street 63, Singapore 569110 KENWOOD House, Dwight Road, Watford, Herts., WD1 8EB United Kingdom KENWOOD ELECTRONICS EUROPE B.V. Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands...

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