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Kenwood TKR-851 Service Manual Supplement

Kenwood TKR-851 Service Manual Supplement

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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 TKR-851

  • 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 This supplement to the service manual is available for products with serial number 60700001 or later. This service manual contains a parts list, schematic diagrams and PC board of a new final unit for the TKR-851. Since the adjustment procedure is the same as before, refer to the service manual (B51-8684-00) the TKR-851 for items not provided in this service manual.
  • Page 3 3. Single Antenna 1. Solder the prepared coaxial cable to the final unit. The TKR-851 can be used as a base station by sharing an 2. Connect the pin connector of the coaxial cable to CN18 of external antenna connector for both transmitting and receiv- the TX-RX unit.
  • Page 4 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. TKR-851 (Y54-323X-XX) FINAL UNIT (X45-3742-71) Desti- Desti- Ref. No. Address Parts No.
  • Page 5 TKR-851 PARTS LIST FINAL UNIT (X45-3742-71) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation L34-4523-05 AIR-CORE COIL S76-0426-05 RELAY L40-1575-34 SMALL FIXED INDUCTOR (15NH/8) L40-1075-34 SMALL FIXED INDUCTOR (10NH/8) 02DZ6.2(Y)
  • Page 6 TKR-851 EXPLODED VIEW D M4 x 14 : N30-4014-46 M3 x 8 : N67-3008-46 N M2.6 x 6 (Br-Tap) : N87-2606-46 M3 x 6 (Br-Tap) : N87-3006-46 Px11 Final (A/2) Final (B/2) Parts with the exploded numbers larger than 700 are not supplied.
  • Page 7 TKR-851 PC BOARD FINAL UNIT (X45-3742-71) Component side view (J72-0971-19) CN8 GND CN6 MAIN DC (BLACK) (RED) CN7 BACKUP (ORANGE) Back up battery Main DC CHARGE C173 C169 C120 FAB 1 TX IN J72-0971-19 (B/2) Ref. No. Address Ref. No. Address Ref.
  • Page 8 TKR-851 PC BOARD FINAL UNIT (X45-3742-71) Component side view (J72-0971-19) J72-0971-19 (A/2) C118 C165 C178 C120 C166 CN53 ANT SW Component side Layer 1 Layer 2 Layer 3 Layer 4 Foil side...
  • Page 9 TKR-851 TKR-851 PC BOARD PC BOARD FINAL UNIT (X45-3742-71) Component side view (J72-0971-19) FINAL UNIT (X45-3742-71) Component side view (J72-0971-19) J72-0971-19 (A/2) CN8 GND CN6 MAIN DC (BLACK) (RED) CN7 BACKUP (ORANGE) Back up battery Main DC CHARGE C118 C173...
  • Page 10 TKR-851 PC BOARD FINAL UNIT (X45-3742-71) Foil side view (J72-0971-19) J72-0971-19 (A/2) C179 C109 C108 C157 Ref. No. Address Ref. No. Address...
  • Page 11 TKR-851 PC BOARD FINAL UNIT (X45-3742-71) Foil side view (J72-0971-19) C115 C114 C168 Back up battery Main DC C170 C105 C174 C109 C108 C101 C171 C103 C102 J72-0971-19 (B/2) Component side Layer 1 Layer 2 Layer 3 Layer 4 Foil side...
  • Page 12 TKR-851 TKR-851 PC BOARD PC BOARD FINAL UNIT (X45-3742-71) Foil side view (J72-0971-19) FINAL UNIT (X45-3742-71) Foil side view (J72-0971-19) J72-0971-19 (A/2) C115 C114 C168 Back up battery Main DC C170 C105 C174 C179 C109 C108 C101 C171 C103 C157...
  • Page 13 TKR-851 SCHEMATIC DIAGRAM FINAL UNIT (X45-3742-71) (A/2) T:7.57V T:7.91V T:7.61V R:0V R:0V R:0V 2SC3356(R24) 6.8n 470p 470p 470p 2SC5110(O) 2SK2596 T:0.70V T:0.69V R:0V R:0V Q1-3 RF AMP 2SC4116(Y) DC SWITCH SURGE VOLTAGE PROTECTOR REGULATOR THERMOSTAT T:13.03V R:13.54V MAX6502UKP035 NJM78L05UA HYST...
  • Page 14 TKR-851 SCHEMATIC DIAGRAM FINAL UNIT (X45-3742-71) (A/2) DRIVE FINAL AMP C160 PD55008S RD60HUF1-01 TX ANT D4,5 RF DETECTOR RF SWITCH T:4.26V R:0V MA4PH633 DC AMP VOLTAGE C120 REFERENCE TA75W01FU 470p 0.022u IN2+ IN2- IN1+ 470k OUT-B IN1- D55,56 OUT1 RF SWITCH...
  • Page 15 FINAL UNIT (X45-3742-71) (A/2) T:7.57V T:7.61V T:7.91V R:0V R:0V R:0V DRIVE FINAL AMP C160 PD55008S RD60HUF1-01 2SC3356(R24) TX ANT 6.8n 470p 470p 470p 2SC5110(O) 2SK2596 T:0.70V T:0.69V R:0V R:0V D4,5 RF DETECTOR Q1-3 RF SWITCH RF AMP T:4.26V R:0V MA4PH633 DC AMP VOLTAGE REFERENCE...
  • Page 16 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.