Sharp LC-32A33T Service Manual
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Sharp LC-32A33T Service Manual

Sharp LC-32A33T Service Manual

Lcd colour television
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This model is based on the LC-32A33M and is changed some parts. This Service Manual covers the modifications
alone. For the other points, refer to the LC-32A33M (No. SY7B8LC32A33M) Service Manual.
DIFFERENCES FROM BASE MODEL...................... i
SAFETY PRECAUTION
PRECAUTION...........................................................iii
CHAPTER 1. SPECIFICATIONS
[1]
SPECIFICATIONS .................................................1-1
[1]
OPERATION MANUAL ..........................................2-1
[1]
DIMENSIONS (LC-32A33T)...................................3-1
[2]
DIMENSIONS (LC-37A33T)...................................3-2
[1]
[2]
[1]
[2]
MAIN Unit...............................................................5-2
Parts marked with "
" are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the
safety and performance of the set.

SERVICE MANUAL

MODELS
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.
OUTLINE
CONTENTS
No. SY8T8LC37A33T
LCD COLOUR TELEVISION
LC-32A33T
LC-37A33T
Parts Guide
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
LC-32/37A33T

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Summary of Contents for Sharp LC-32A33T

  • Page 1: Table Of Contents

    OPERATION MANUAL ..........2-1 CHAPTER 3. DIMENSIONS DIMENSIONS (LC-32A33T)........3-1 DIMENSIONS (LC-37A33T)........3-2 CHAPTER 4. REMOVING OF MAJOR PARTS REMOVING OF MAJOR PARTS (LC-32A33T)..4-1 REMOVING OF MAJOR PARTS (LC-37A33T)..4-6 CHAPTER 5. SCHEMATIC DIAGRAM DESCRIPTION OF SCHEMATIC DIAGRAM ..5-1 MAIN Unit...............5-2 Parts marked with "...

  • Page 2: Outline And Differences From Base Model Outline

    This model is based on the LC-32A33M and is changed some parts. This Service Manual covers the modifications alone. For the other points, refer to the LC-32A33M (No. SY7B8LC32A33M) Service Manual. DIFFERENCES FROM BASE MODEL LIST OF CHANGED PARTS (LC-32A33T) LC-32A33M LC-32A33T Ref.
  • Page 3 LC-32/37A33T LC-32A33M LC-32A33T Ref. No. Description Note (No. SY7B8LC32A33M) (No. SY8T8LC37A33T) R8479 Resistor — VRS-CZ1JF000JY R8480 Resistor VRS-CZ1JF000JY — Delete R8482 Resistor VRS-CZ1JF1R0JY — Delete R8483 Resistor VRS-CZ1JF1R0JY — Delete R8485 Resistor — VRS-CZ1JF000JY R8486 Resistor VRS-CZ1JF000JY — Delete CABINET AND MECHANICAL PARTS...

  • Page 4: Important Service Safety

    LC-32/37A33T LC-32/37A33T SAFETY PRECAUTION Service Manual IMPORTANT SERVICE SAFETY PRECAUTION Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the servicing guidelines which follow: WARNING All checks must be repeated with the AC cord plug connection reversed.

  • Page 5: Precautions For Using Lead-Free Solder

    LC-32/37A33T PRECAUTIONS FOR USING LEAD-FREE SOLDER 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. Example: Indicates lead-free solder of tin, silver and copper.

  • Page 6: Specifications

    Operating Temperature 0°C - 40°C As a 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 deviations from these values in individual units.

  • Page 7: Chapter 2. Operation Manual Operation Manual

    LC-32/37A33T CHAPTER 2. LC-32/37A33T OPERATION MANUAL Service Manual [1] OPERATION MANUAL Preparation Part names TV (Front) TV/VIDEO button Channel up ( )/down ( ) buttons MENU button Volume up ( )/down ( ) buttons POWER (On/Off) button Remote control sensor OPC indicator* OPC sensor SLEEP timer indicator...
  • Page 8 LC-32/37A33T Preparation TV (Rear) AC INPUT terminal INPUT 3 (HDMI) terminals INPUT 4 (HDMI) terminal RS-232C terminal INPUT 5 (PC) terminals Headphone jack INPUT 1 terminals MONITOR OUTPUT terminals Antenna input terminal INPUT 2 terminals Regarding the headphone jack Use headphones with a stereo mini plug (Ø 3.5 mm). Volume display when headphones are plugged in Be sure to unplug headphones from the jack when they are not in use.

  • Page 9: Remote Control Unit

    LC-32/37A33T Preparation Remote control unit POWER (STANDBY/ON) To switch the power on and off. 0 _ 9 Set the channel. (Flashback) TV/VIDEO (INPUT SOURCE) Press to return to the previous Select an input source. (TV, selected channel or external INPUT 1, INPUT 2, INPUT 3, input mode.

  • Page 10: Attaching The Stand

    LC-32/37A33T Preparation Attaching the stand Before attaching (or detaching) the stand, unplug the AC cord from the AC INPUT terminal. Before performing work spread cushioning over the base area to lay the TV on. This will prevent it from being damaged.

  • Page 11: Chapter 3. Dimensions

    LC-32/37A33T CHAPTER 3. LC-32/37A33T DIMENSIONS Service Manual [1] DIMENSIONS (LC-32A33T) Unit: mm LC-32A33T 701.5 3 – 1...

  • Page 12: Dimensions (Lc-37A33T)

    LC-32/37A33T [2] DIMENSIONS (LC-37A33T) Unit: mm LC-37A33T 824.4 3 – 2...

  • Page 13: Chapter 4. Removing Of Major Parts

    CHAPTER 4. LC-32/37A33T REMOVING OF MAJOR PARTS Service Manual [1] REMOVING OF MAJOR PARTS (LC-32A33T) 1. REMOVING OF STAND ASS’Y AND REAR CABINET 1. Remove the 4 screws [1] and detach the Stand Ass’y. 2. Detach the Bass Cover [2].
  • Page 14 LC-32/37A33T 2. REMOVING OF SPEAKERS, BOTTOM COVER AND STAND ANGLE 1. Remove the 1 screw [1] and detach the Bottom Cover. 2. Remove the 4 screws [2] and detach the Stand Angle. 3. Disconnect SP connector and detach the Speaker-L and Speaker-R [3]. 4.
  • Page 15 LC-32/37A33T 3. REMOVING OF CONNECTING CORD 1. Remove all the connectors from all the PWBs. INVERTER/POWER PWB Unit KEY PWB Unit MAIN PWB Unit R/C, LED PWB Unit 4 – 3...
  • Page 16 LC-32/37A33T 4. REMOVING OF PWB UNITS 1. Remove the 1 screw [1] and detach the R/C, LED PWB Unit. 2. Detach the KEY PWB Unit [2] from Front Cabinet. 3. Remove the 4 screws [3] and detach the INVERTER/POWER PWB Unit. 4.
  • Page 17 LC-32/37A33T 5. REMOVING OF CENTER ANGLE AND LCD ANGLE-A/B 1. Remove the 2 screws [1], 2 screws [2], 8 screws [3] and detach the Center Angle. 2. Remove the 2 screws [4], 4 screws [5] and detach the LCD Angle-A/B. 3.

  • Page 18: Removing Of Major Parts (Lc-37A33T)

    LC-32/37A33T [2] REMOVING OF MAJOR PARTS (LC-37A33T) 1. REMOVING OF STAND ASS'Y AND REAR CABINET 1. Remove the 4 screws [1] and detach the Stand Ass'y. 2. Detach the Bass Cover [2]. 3. Remove the 2 screws [3], 2 screws [4], 4 shafts [5], 4 screws [6], 6 screws [7] and detach the Rear Cabinet. Rear Cabinet Bass Cover Stand Ass'y...
  • Page 19 LC-32/37A33T 2. REMOVING OF SPEAKERS, BOTTOM COVER AND STAND ANGLE 1. Remove the 1 screw [1] and detach the Bottom Cover. 2. Remove the 4 screws [2] and detach the Stand Angle. 3. Disconnect SP connector and detach the Speaker-L and Speaker-R [3]. 4.
  • Page 20 LC-32/37A33T 3. REMOVING OF CONNECTING CORD 1. Remove all the connectors from all the PWBs. KEY PWB Unit POWER PWB Unit MAIN PWB Unit INVERTER PWB Unit R/C, LED PWB Unit 4 – 8...
  • Page 21 LC-32/37A33T 4. REMOVING OF PWB UNITS 1. Remove the 1 screw [1] and detach the R/C, LED PWB Unit. 2. Detach the KEY PWB Unit [2] from Front Cabinet. 3. Remove the 6 screws [3] and detach the POWER PWB Unit and INVERTER PWB Unit. 4.
  • Page 22 LC-32/37A33T 5. REMOVING OF CENTER ANGLE AND LCD ANGLE-A/B 1. Remove the 8 screws [1] and detach the Center Angle. 2. Remove the 7 screws [2], 4 screws [3] and detach the LCD Angle-A/B. 3. Detach the LCD Panel Module. Center Angle LCD Angle-B Center Angle...

  • Page 23: Chapter 5. Schematic Diagram

    LC-32/37A33T LC-32/37A33T CHAPTER 5. SCHEMATIC DIAGRAM Service Manual [1] DESCRIPTION OF SCHEMATIC DIAGRAM 1. VOLTAGE MEASUREMENT CONDITION: 1) The voltages at test points are measured on exclusive AC adaptor and the stable supply voltage of AC 120V. Signals are fed by a color bar signal gener- ator for servicing purpose and the above voltages are measured with a 20k ohm/V tester.
  • Page 24 LC-32/37A33T [2] MAIN Unit • MAIN Unit-6 5 – 2...
  • Page 25 LC-32/37A33T • MAIN Unit-16 5 – 3...
  • Page 26 LC-32/37A33T • MAIN Unit-17 5 – 4...

  • Page 27: Main Unit

    DUNTKE508FM15 (LC-32A33T) DUNTKE508FM16 (LC-37A33T) (MAIN Unit) CABINET AND MECHANICAL PARTS (LC-32A33T) LCD PANEL UNIT (LC-32A33T) CABINET AND MECHANICAL PARTS (LC-37A33T) LCD PANEL UNIT (LC-37A33T) Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set.
  • Page 28 RUNTK3925TPZZ GND Unit (Bottom) (LC-37A33T) RUNTK3926TPZZ [2] LCD PANEL R1LK315T3GW30W 32"LCD Panel Module Unit (LC-32A33T) 37"LCD Panel Module Unit (LC-37A33T) R1LK370T3GW20W [3] DUNTKE508FM15 (LC-32A33T)/DUNTKE508FM16 (LC-37A33T) (MAIN Unit) IC801 RH-IXB887WJZZQ R8465 VRK-SB1FF000JY Resistor, 0 1/32W Metal Composition (LC-32A33T) R8474 VRK-SB1FF000JY Resistor, 0 1/32W Metal Composition (LC-32A33T)
  • Page 29 LC-32/37A33T [4] CABINET AND MECHANICAL PARTS (LC-32A33T) KEY Unit R/C, LED Unit INVERTER/POWER Unit MAIN Unit...
  • Page 30 LC-32/37A33T PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [4] CABINET AND MECHANICAL PARTS (LC-32A33T) Front Cabinet Ass'y CCABAC007WJ42 Front Cabinet Not Available Badge, SHARP Not Available SP Center Decoration HDECQA884WJ4A LED Cover HDECQA890WJ4A Speaker Sheet HPNLSA215WJ4A Spacer (T-B), x2...
  • Page 31 LC-32/37A33T [5] LCD PANEL UNIT (LC-32A33T) 3-17 3-16 3-15 3-11 3-14 3-10 3-14 3-15 3-12 3-4 3-6 3-20 3-13 3-18 3-18 3-19 3-18 3-18 PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [5] LCD PANEL UNIT (LC-32A33T) 32"LCD Panel Module Unit...
  • Page 32 LC-32/37A33T [6] CABINET AND MECHANICAL PARTS (LC-37A33T) KEY Unit R/C, LED Unit 1-6 1-6 INVERTER Unit POWER Unit MAIN Unit...
  • Page 33 PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [6] CABINET AND MECHANICAL PARTS (LC-37A33T) Front Cabinet Ass'y CCABAC008WJ42 Front Cabinet Not Available Badge, SHARP Not Available SP Center Decoration HDECQA885WJ4A LED Cover HDECQA890WJ4A Speaker Sheet HPNLSA216WJ4A Spacer (T-B), x6 PSPAHB472WJ4Z Screw, x3...
  • Page 34 LC-32/37A33T [7] LCD PANEL UNIT (LC-37A33T) 3-18 3-13 3-12 3-16 3-10 3-16 3-17 3-19 3-16 3-14 3-20 3-15 3-11 3-22 3-21 3-21 3-22 3-21 3-22 3-22 3-21 3-22 PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [7] LCD PANEL UNIT (LC-37A33T) 37"LCD Panel Module Unit R1LK370T3GW20W Bezel Ass'y Top...
  • Page 35 LC-32/37A33T [8] SUPPLIED ACCESSORIES Cable Clamp AC Cord Remote Control Unit Operation Manual RC Chinese Label Stand Unit PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [8] SUPPLIED ACCESSORIES Cable Clamp LHLDWA173WJKZ AC Cord QACCZA084WJPZ Adaptor QCNCWA953WJZZ Remote Control Unit RRMCGA666WJSA Operation Manual TINS-E054WJZZ...
  • Page 36 LC-32/37A33T [9] PACKING PARTS (NOT REPLACEMENT ITEM)
  • Page 37 SPAKFB418WJZZ Wrapping Paper (LC-32A33T) SPAKPA611WJZZ Wrapping Paper (LC-37A33T) SPAKPA801WJZZ Mirror Mat Sup SPAKPB053WJZZ Mirror Mat Base SPAKPB054WJZZ Packing Add. (Top) (LC-32A33T) SPAKXB828WJZZ SPAKXB971WJZZ Packing Add. (Top) (LC-37A33T) SPAKXB829WJZZ Packing Add. (Bottom) (LC-32A33T) SPAKXB972WJZZ Packing Add. (Bottom) (LC-37A33T) Cover Sheet SPAKAA373WJZZ...
  • Page 38 LC-32/37A33T COPYRIGHT 2008 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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