Sharp LC-37DB5U Service Manual
Sharp LC-37DB5U Service Manual

Sharp LC-37DB5U Service Manual

Lcd color television
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In the interests of user-safety (Required by safety regulations in some countries) the set should be restored
to its original condition and only parts identical to those specified should be used.
This model is based on the LC-37D4U and is equipped with a redesigned speaker, and is changed some
function. This Service Manual covers the modifications alone. For the other points, refer to the LC-26/32/
37D4U Service Manual.
» LIST OF CHANGED PARTS ...........................................................................................................................2
» IMPORTANT SERVICE SAFETY PRECAUTION ........................................................................................ 3
» SPECIFICATIONS........................................................................................................................................6
» OPERATION MANUAL ................................................................................................................................7
» DIMENSIONS ............................................................................................................................................13
» REMOVING OF MAJOR PARTS ................................................................................................................14
» BLOCK DIAGRAM .....................................................................................................................................18
» OVERALL WIRING DIAGRAM ...................................................................................................................20
» PARTS LIST ...............................................................................................................................................22
» PACKING OF THE SET .............................................................................................................................26

SHARP CORPORATION

SERVICE MANUAL

LCD COLOR TELEVISION
LC-37DB5U
MODEL
OUTLINE
CONTENTS
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
LC-37DB5U
S95N9LC37DB5U
Page

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Summary of Contents for Sharp LC-37DB5U

  • Page 1: Table Of Contents

    LC-37DB5U SERVICE MANUAL S95N9LC37DB5U LCD COLOR TELEVISION LC-37DB5U MODEL In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used.
  • Page 2: List Of Changed Parts

    LC-37DB5U LIST OF CHANGED PARTS LC-37D4U → LC-37DB5U Ref.No. Description LC-37D4U LC-37DB5U Note PWB ASSEMBLIES DIGITAL Unit DUNTKD331FE14 DUNTKD331FE16 *Some parts changed AV Unit DUNTKD352DE19 DUNTKD352WE03 *Some parts changed KEY Unit DUNTKD353DE19 DUNTKD353WE01 No parts changed R/C, LED Unit DUNTKD354DE19...
  • Page 3: Important Service Safety Precaution

    LC-37DB5U IMPORTANT SERVICE SAFETY PRECAUTION Ë Service work should be performed only by qualified service technicians who are thor- oughly familiar with all safety checks and the servicing guidelines which follow: » Use an AC voltmeter having with 5000 ohm per volt,...
  • Page 4 LC-37DB5U PRECAUTIONS A PRENDRE LORS DE LA REPARATION Ë Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux conseils suivants. AVERTISSEMENT de 0.15µF en série avec toutes les pièces métalliques exposées du coffret et une terre connue comme une...
  • Page 5 LC-37DB5U Precautions for using lead-free solder 1 Employing lead-free solder "PWBs" of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWBs and service manuals. The alphabetical character following LF shows the type of lead-free solder.
  • Page 6: Specifications

    Operating temperature As part of policy of continuous improvement, SHARP reserves the right to make design and specification changes for product improvement without prior notice. The performance specification figures indicated are nominal values of production units. There may be some...
  • Page 7: Operation Manual

    LC-37DB5U OPERATION MANUAL...
  • Page 8 LC-37DB5U...
  • Page 9 LC-37DB5U...
  • Page 10 LC-37DB5U...
  • Page 11 LC-37DB5U...
  • Page 12 LC-37DB5U...
  • Page 13: Dimensions

    LC-37DB5U DIMENSIONS Unit: inch/(mm) 671) 105) 114) 1105) 822.6) 306) 200)
  • Page 14: Removing Of Major Parts

    LC-37DB5U REMOVING OF MAJOR PARTS 1. Remove the Terminal Cover 1. 2. Remove the 1 lock screw 2 and detach the Bracket Cover. 3. Remove the 4 lock screws 3 and detach the Stand. 4. Remove the Rear Cabinet. Remove the 19 lock screws 4, 9 lock screws 5, 7 lock screws 6 and detach the Rear Cabinet.
  • Page 15 LC-37DB5U 5. Remove the 7 lock screws 7 and detach the Center Angle. 6. Detach the LCD Control Shield 8. 7. Remove the 5 lock screws 9 and detach the Main Shield A. 8. Disconnect the connectors 0 and q, and detach the SP Box (R) and SP Box (L).
  • Page 16 LC-37DB5U 10. Remove the 4 lock screws w and FFC. Detach the Main Shield B and Digital PWB. 11. Remove the 4 lock screws e and detach the Digital PWB. 12. Remove the 2 lock screws r and detach the Jack Cover C.
  • Page 17 LC-37DB5U 19. Remove the 4 lock screws g and take out of the LCD Panel Module. LCD Panel Module...
  • Page 18: Block Diagram

    LC-37DB5U LC-37DB5U BLOCK DIAGRAM...
  • Page 19: Overall Wiring Diagram

    LC-37DB5U LC-37DB5U OVERALL WIRING DIAGRAM...
  • Page 20: Parts List

    USA: Contact your nearest SHARP Parts Distributor to order. 3. NO. DE PIECE 4. DESCRIPTION For location of SHARP Parts Distributor, Please call Toll- in CANADA: Contact SHARP Electronics of Canada Limited Free; 1-800-BE-SHARP Phone (416) 890-2100 MARK: SPARE PARTS-DELIVERY SECTION Ref.
  • Page 21: Cabinet And Mechanical Parts

    X Front Cabinet Ass'y PRDARA216WJFW X Heat Sink (For IC2502) Not Available – Front Cabinet — PSLDMA651WJZZ X Shield (70x20(E05G)) Not Available – Badge, SHARP — PSLDMA693WJZZ X Shield (15x20(E02)) PSPAHA412WJZZ X Mask Spacer, x2 PSLDMA704WJZZ X Shield (30x50(E02)) PSPAHA416WJZZ...
  • Page 22 LC-37DB5U CABINET AND MECHANICAL PARTS 4-1-2 56 101 4-1-1 4-2-1 4-2-2 4-2-3 4-2-5 4-2-4 4-2-3 4-2-4 4-2-5...
  • Page 23: Packing Parts

    LC-37DB5U Ref. No. Part No. Description Code Ref. No. Part No. Description Code SERVICE JIGS PACKING PARTS (USE FOR SERVICING) (NOT REPLACEMENT ITEM) EXTENSION CABLES SPAKCC139WJZZ – Packing Case — SPAKFA770WJZZ – Accessories Case — QCNW-C222WJQZ J 80pins FFC L=1000mm SPAKFA808WJZZ –...
  • Page 24: Packing Of The Set

    LC-37DB5U PACKING OF THE SET...
  • Page 25 LC-37DB5U...
  • Page 26 LC-37DB5U COPYRIGHT © 2005 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.

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