Kenwood TK-480 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-480

  • 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

    B51-8665-00 ( N ) PDF This service manual has new information that is not covered by the TK-480/481 (REVISED II) service manual (B51-8408-20). Refer to the TK-480/481 (REVISED II) service manual (B51-8408-20) for items not provided in this service manual. Whip antenna...
  • Page 3: General

    Merchandise received Frequency range (MHz) RF power Type Choose the type of transceiver 806~825 2.5W TK-480 M2 851~870 851~870 Transceiver programming A personal computer (IBM PC or compatible), programming interface (KPG-36), and programming software (KPG-49D (M2) ver 6.30 or later) are required for programming.
  • Page 4: Operating Features

    Volume/Power switch 1. Operation Features Transceiver Power and Volume switch. Turn clockwise to The TK-480 is an 800MHz band EFJ LTR™-compatible switch On the transceiver. Turn counterclockwise fully to trunked radio designed to operate in both trunked and con- switch OFF the transceiver. Also adjusts the volume ventional modes.
  • Page 5 TK-480 OPERATING FEATURES ■ Auto TEL ■ Key lock Automatically connects available repeaters that are con- Pressing this key causes the transceiver to accept entry nected to telephone circuits when operating as LTR system. of only the [Function], [Key Lock], [PTT], [Lamp], [Monitor A], The time allocated to search for available repeaters is 60 [Monitor B], [Monitor C], [Monitor D], and [Emergency] keys.
  • Page 6: Option Signalling

    TK-480 OPERATING FEATURES ■ System up/down Alphanumeric display When the key is pressed each time, the system number The twelve-character dot matrix alphanumeric display to be selected is incremented/decremented and repeats if shows the system and group numbers. You can program held for one second or longer.
  • Page 7 94 : Acknowledgement status sent when the radio unit is The Alphanumeric Two-way Paging Function (DMS) is a in stun mode (TX/RX disabled). Kenwood proprietary protocol. It enables a variety of paging 95~98 : Reserved for future use. functions. 99 : Emergency Status.
  • Page 8 TK-480 OPERATING FEATURES ■ Emergency Status response ■ Number of Retries “Alert” can be selected for the called radio unit’s re- Number of Retries is the maximum number of retry sponse to reception of status 99 which is used as an emer- transmission when no acknowledgement is received in the gency status.
  • Page 9: Realignment

    Flash memory is mounted on the TK-480. This allows the • Change the TK-480 to PC mode, then attach the interface TK-480 to be upgraded when new features are released in cable.
  • Page 10 TK-480 REALIGNMENT Notes: 2-4. Function • To start the Firmware Programmer from KPG-49D (M2) 1. If you press the [MON] switch (top of left side) while ver 6.30 or later, the Fpro path must be set up by KPG- “PROG 57600” is displayed, the checksum is displayed.
  • Page 11: Parts List

    E : Europe Les articles non mentionnes dans le Parts No. ne sont pas fournis. Y : AAFES (Europe) X: Australia M: Other Areas Teile ohne Parts No. werden nicht geliefert. TK-480 (Y50-4790-21) DISPLAY UNIT (X54-3210-11) Desti- Desti- Ref. No. Address Parts No.
  • Page 12 TK-480 PARTS LIST DISPLAY UNIT (X54-3210-11) TX-RX UNIT (X57-5630-10) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation R307 RK73GB1J821J CHIP R 1/16W C92-0576-05 CHIP-TAN 1.0UF 6.3WV R308 RK73GB1J153J CHIP R...
  • Page 13 TK-480 PARTS LIST TX-RX UNIT (X57-5630-10) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation C89,90 CK73GB1H272J CHIP C 2700PF C162 CC73GCH1H270J CHIP C 27PF CK73GB1E103K CHIP C 0.010UF C163 CK73FB1C474K CHIP C 0.47UF...
  • Page 14 TK-480 PARTS LIST TX-RX UNIT (X57-5630-10) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation L40-1075-92 SMALL FIXED INDUCTOR (10NH) RK73GB1J101J CHIP R 1/16W L79-1465-05 DIELECTRIC FILTER (860MHZ) RK73GB1J472J CHIP R 4.7K...
  • Page 15 TK-480 PARTS LIST TX-RX UNIT (X57-5630-10) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation RK73GB1J121J CHIP R 1/16W R211 RK73HB1J103J CHIP R 1/16W R100 RK73GB1J820J CHIP R 1/16W R218 RK73HB1J473J...
  • Page 16 TK-480 PARTS LIST TX-RX UNIT (X57-5630-10) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation 2SK1824 2SC4617(S) TRANSISTOR DTC144EE DIGITAL TRANSISTOR Q21-23 2SK1824 157-503-65001 THERMISTOR...
  • Page 17: Exploded View

    TK-480 EXPLODED VIEW 22x2 21x2 MIC300 Display unit (A/2) : N14-0809-04 M2.6 x 5 : N30-2605-46 M2.6 x 10 : N30-2610-46 D M2.6 x 6 : N67-2606-46 M2 x 5 : N83-2005-46 M2 x 2.5 : N79-2025-46 TX-RX unit When you repair or...
  • Page 18: Packing

    TK-480 PACKING 50 Battery assy (W09-0900-45) Insulation sheet 9 Instruction manual (B62-1771-00) 4 Cap (SP/MIC) (B09-0363-03) 42 Screw set (N99-2004-05) 28 Packing fixture (H12-3014-02) 47 Whip antenna (T90-0636-25) 32 Hook (J29-0658-05) 29 Item carton case (H52-1096-12)
  • Page 19: Adjustment

    TK-480 ADJUSTMENT • Sub LCD indicator Test Mode “FCN” Appears at Function ON. ■ Test mode operating features This transceiver has a test mode. To enter test mode, ■ Frequency and signalling press [A] key and turn power on. Hold [A] key until test The set has been adjusted for the frequencies shown in channel No.
  • Page 20 TK-480 ADJUSTMENT ■ Tuning mode • Transceiver tuning (To place transceiver in tuning mode) System appears on LCD. Set system according to tuning Panel test mode requirements. System/Group No. LCD display (Test mode) FREQ : Frequency adj. 1 – HPOW : High power THPW : High power (T/A) System No.
  • Page 21 TK-480 ADJUSTMENT Common Section Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 1. Setting 1) BATT terminal voltage : 7.5V Standard modulation MOD : 1kHz DEV : ± 3kHz 2. VCO lock 1) SYS – GRP : 1 – 1...
  • Page 22 TK-480 ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 1) SYS – GRP : 4 – ✽ 9. DQT BAL Power meter Panel Panel Encoder Make the demodu- ✽ ✽ ✽ adjustment Select BAL Deviation...
  • Page 23 TK-480 ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 1) SYS – GRP : 4 – ✽ ± 0.05kHz 15. QT DEV Power meter Panel Panel Encoder 0.75kHz adjustment MIC input : OFF Deviation knob ✽...
  • Page 24 TK-480 ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 22. BATT 1) SYS – GRP : 4 – 1 Power meter Panel Panel Encoder Check Can not transmit. detection BATT terminal voltage : 5.7V Deviation knob LED (TX) blinks.
  • Page 25: Specifications

    Leuvensesteenweg 248 J, 1800 Vilvoorde, Belgium KENWOOD ELECTRONICS FRANCE S.A. 13, Boulevard Ney, 75018 Paris, France 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 KENWOOD ELECTRONICS ITALIA S.p.A.

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