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Kenwood TK-880 Service Manual
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Kenwood TK-880 Service Manual

Kenwood TK-880 Service Manual

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Download this manual See also: Service Manual, Instruction Manual
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-880

  • 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 © 2006-6 PRINTED IN JAPAN B51-8582-10 ( N ) 508 This service manual applies to products (K type only. Ex- cluding the K2 and K3 types.) with 80400001 (TK-880), 61200001 (TK-880H) or subsequent serial numbers. Refer to the TK-880/H service manual (B51-8582-00) for any information which has not been covered in this manual.

  • Page 3: Parts List

    TK-880/880H PARTS LIST ✽ New Parts. indicates safety critical components. L : Scandinavia K : USA P : Canada Parts without Parts No. are not supplied. Y : PX (Far East, Hawaii) T : England E : Europe Les articles non mentionnes dans le Parts No. ne sont pas fournis.
  • Page 4 TK-880/880H PARTS LIST TX-RX UNIT (X57-6450-XX) (A/2) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation C151 CK73GB1H102K CHIP C 1000PF C268 CC73FCH1H040C CHIP C 4.0PF C152 C92-0777-05 ELECTRO 1000UF 25WV...
  • Page 5 TK-880/880H PARTS LIST TX-RX UNIT (X57-6450-XX) (A/2) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation ✽ E41-1682-05 PIN ASSY RK73GB2A184J CHIP R 180K 1/10W E40-5982-05 FLAT CABLE CONNECTOR RK73GB2A394J CHIP R...
  • Page 6 TK-880/880H PARTS LIST TX-RX UNIT (X57-6450-XX) (A/2) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation R110 RK73GB2A470J CHIP R 1/10W R214 RK73GB2A101J CHIP R 1/10W R111,112 RK73GB2A472J CHIP R 4.7K...
  • Page 7 TK-880/880H PARTS LIST TX-RX UNIT (X57-6450-XX) (A/2) PLL/VCO (X58-4550-10) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation R422 RK73GB2A000J CHIP R 1/10W IC13 AN8009M MOS-IC R425 RK73GB2A000J CHIP R 1/10W...
  • Page 8 TK-880/880H PARTS LIST PLL/VCO (X58-4550-10) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation C121 CC73GCH1H090B CHIP C 9.0PF C122 CC73GCH1H0R5C CHIP C 0.5PF C123 CK73GB1H471K CHIP C 470PF C124 CC73GCH1H0R5C CHIP C 0.5PF...
  • Page 9 TK-880/880H ADJUSTMENT Transmitter Section Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 1. Frequency 1) Set test mode Power meter Rear Check 470.100MHz± 100Hz Select “FREQ” in tuning mode. F. counter panel PTT : ON ± 0.5W : K 2.
  • Page 10 TK-880/880H ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 6. Modulation 1) Set test mode Power meter Rear Make the de- (Wide/Narrow) balanced MIC input : OFF Deviation panel modulation Select “BAL” in tuning mode. meter waves into square “L BAL”...
  • Page 11 TK-880/880H ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment ± 50Hz (Wide/Narrow) 10. DQT 1) Set test mode Power meter Rear 0.75kHz (Wide) deviation Select “F DQT” in tuning mode. Deviation panel 0.35kHz (Narrow) “L FDQT”...
  • Page 12 TK-880/880H PC BOARD PLL/VCO (X58-4550-10) Component side view (J72-0618-02) J72-0618-02 CN101 Component side Layer 1 Layer 2 Foil side PLL/VCO (X58-4550-10) Foil side view (J72-0618-02) Ref. No. Address Q101 Q102 L106 Q103 Q104 C116 L104 C105 L110 Q105 Q106 C129...
  • Page 13 TK-880/880H PC BOARD TX-RX UNIT (X57-6450-XX) (A/2) -10 : K -13 : HK Component side view (J72-0974-09 A/2) C448 C447 C273 C267 L222 C178 C443 R135 R460 R461 R113 R149 R122 D401 R112 R457 R139 R422 C432 C465 R419 R418...
  • Page 14 TK-880/880H PC BOARD TX-RX UNIT (X57-6450-XX) (A/2) -10 : K -13 : HK Component side view (J72-0974-09 A/2) Ref. No. Address IC10 IC11 IC14 EXT. SP IC300 IC401 IC402 C133 Q203 C174 Q300 C173 Q301 Q302 Q401 IC9 G CF1 (F)
  • Page 15 TK-880/880H TK-880/880H PC BOARD PC BOARD TX-RX UNIT (X57-6450-XX) (A/2) TX-RX UNIT (X57-6450-XX) (A/2) -10 : K -13 : HK -10 : K -13 : HK Component side view (J72-0974-09 A/2) Component side view (J72-0974-09 A/2) Ref. No. Address C448...
  • Page 16 TK-880/880H PC BOARD TX-RX UNIT (X57-6450-XX) (A/2) -10 : K -13 : HK Foil side view (J72-0974-09 A/2) R181 R182 R453 R452 Q404 C400 C195 R426 C255 C464 R206 C121 D408 C126 C197 C196 R252 R203 C198 C130 C143 R430...
  • Page 17 TK-880/880H PC BOARD Ref. No. Address IC400 TX-RX UNIT (X57-6450-XX) (A/2) -10 : K -13 : HK Foil side view (J72-0974-09 A/2) IC12 IC13 IC15 IC200 IC400 C265 ANTE D209 D402 R252 R401 C135 R239 R169 C248 C247 C287 R147...
  • Page 18 TK-880/880H TK-880/880H PC BOARD PC BOARD Ref. No. Address TX-RX UNIT (X57-6450-XX) (A/2) IC400 TX-RX UNIT (X57-6450-XX) (A/2) -10 : K -13 : HK -10 : K -13 : HK Foil side view (J72-0974-09 A/2) Foil side view (J72-0974-09 A/2)

  • Page 19: Schematic Diagram

    TK-880/880H SCHEMATIC DIAGRAM TX-RX UNIT (X57-6450-XX) (A/2) C320 C322 R305 IC300 2.2u10 2.2u10 PLL IC SA7025DK or CD8468 R319 L302 R301 1 CLOCK R316 R318 R302 2 DATA TEST R303 3 STROBE LOCK 4 VSS Q301 5 RFIN 2SC3722K(S) C306...
  • Page 20 TK-880/880H SCHEMATIC DIAGRAM TX-RX UNIT (X57-6450-XX) (A/2) A1 X58-4550-10 (VCO) R117 RX OSCILLATOR C115 L107 R104 Q101 RX VCO C125 2SK508NV(K52) L101 R111 C122 L105 C104 D103 R101 1.5n 0.5p 1SV283F TC106 C107 RX VCO BUFFER AMP Q106 2SC5110-F(O) 2SC4226-A(R24)
  • Page 21 TK-880/880H SCHEMATIC DIAGRAM TX-RX UNIT (X57-6450-XX) (A/2) RF AMP RF AMP RF AMP Q205 Q202 Q204 2SC3357-A 2SC4093(R27) 2SC3357-A C251 D40,41 C245 RF SWITCH R403 C234 R425 HVC131 R:0V R231 T:7.06V R:0V T:1.18V R:0V HVC131 T:4.37V R:0V T:1.41V R223 D401 R:0.01V...
  • Page 22 TK-880/880H SCHEMATIC DIAGRAM IC400 POWER MODULE TX-RX UNIT (X57-6450-XX) (A/2) R204 L222 L224 D402 1.5T 1.5T L219 C254 R205 R402 D209 MA4PH633 C267 R:0V 1000p T:4.80V R420 R421 POWER DET D209-211,402 POWER DET ANT SW HSM88AS R:0V R:0V T:17.24V T:14.51V HSM88AS R:13.6V(K,HK)
  • Page 23 IC400 POWER MODULE TX-RX UNIT (X57-6450-XX) (A/2) C320 C322 A1 X58-4550-10 (VCO) R305 IC300 2.2u10 2.2u10 PLL IC R204 SA7025DK or CD8468 R117 L222 L224 RF AMP R319 RF AMP RF AMP L302 D402 1.5T 1.5T R301 1 CLOCK Q205 Q202 Q204 L219...
  • Page 24 Unit 3712-3724, Level 37, Tower one Metroplaza, 223 Hing Fong Road, Bp 58416 Villepinte, 95944 Roissy Ch De Gaulle Cedex Kwai Fong, N.T., Hong Kong KENWOOD House, Dwight Road, Watford, Herts., 1 Ang Mo Kio Street 63, Singapore 569110 WD18 9EB United Kingdom...

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Tk-880h