Sharp LC-10A3U Service Manual
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Sharp LC-10A3U Service Manual

Sharp LC-10A3U Service Manual

Lcd color television
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See also: Operating Manual
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.
"
The 10
LCD panel used in the LC-10A3U has been redsigned as from the October 2002 production.
Accordingly, the circuitly, LCD panel and its peripheral parts have been partially changed.
This Service manual covers all the changes.
How to identify the newly designed sets
(1) The marking A is given on the model label at the bottom of the set.
(2) Serial numbers
210451112~
OCTOBER2002~
(3) The marking "A" is given on the label at the packing case.
» IMPORTANT SERVICE SAFETY PRECAUTION .................................................................................... 2
» SPECIFICATIONS ................................................................................................................................... 5
» OPERATION MANUAL ............................................................................................................................ 6
» DIMENSIONS .......................................................................................................................................... 7
» REMOVING OF MAJOR PARTS ............................................................................................................. 8
» ADJUSTING PROCEDURE OF EACH SECTION ................................................................................ 11
» TROUBLE SHOOTING TABLE .............................................................................................................. 14
» CHASSIS LAYOUT ................................................................................................................................ 18
» BLOCK DIAGRAM ................................................................................................................................. 20
» OVERALL WIRING DIAGRAM .............................................................................................................. 22
» DESCRIPTION OF SCHEMATIC DIAGRAM ........................................................................................ 24
» SCHEMATIC DIAGRAM ........................................................................................................................ 25
» PRINTED WIRING BOARD ASSEMBLIES ........................................................................................... 32
» PARTS LIST ........................................................................................................................................... 39
» PACKING OF THE SET ......................................................................................................................... 49
SHARP CORPORATION

SERVICE MANUAL

SUPPLEMENT

LCD COLOR TELEVISION

MODEL
OUTLINE
CONTENTS
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
SX2T7LC-10A3U
LC-10A3U
LCD COLOR TV
MODEL
LC-10A3U-S
MODÉLE
ELECTRICAL RATING
DC 12V 24W
CONSOMMATION
CC 12V 24W
SERIAL NO.
210451112
N DE SERIE
MANUFACTURED
OCTOBER 2002
DATE DE PRODUCTION OCTOBER 2002
SHARP CORPORATION
MADE IN JAPAN
FABRIQUÉ AU JAPON
LC-10A3U
SUPPLEMENT
A Mark
A
Page

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Summary of Contents for Sharp LC-10A3U

  • Page 1: Table Of Contents

    A Mark " The 10 LCD panel used in the LC-10A3U has been redsigned as from the October 2002 production. Accordingly, the circuitly, LCD panel and its peripheral parts have been partially changed. This Service manual covers all the changes.

  • Page 2: Important Service Safety Precaution

    LC-10A3U SUPPLEMENT IMPORTANT SERVICE SAFETY PRECAUTION Ë Service work should be perfomed 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, or...
  • Page 3 LC-10A3U SUPPLEMENT 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. • Utiliser un voltmètre CA d'une sensibilité d'au moins AVERTISSEMENT 5000Ω/V pour mesurer la chute de tension en travers...
  • Page 4 LC-10A3U SUPPLEMENT Precautions for using lead-free solder 1 Employing lead-free solder "Main PWB" 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 5: Specifications

    LC-10A3U SUPPLEMENT SPECIFICATIONS ITEMS LC-10A3U MODEL LCD panel 10.4” TFT LCD Number of pixels 921,600 pixels VGA Video color systems N358, N443, PAL, PAL-M, PAL-N, SECAM, PAL-60 Destination USA/Latin A/Twn TV Standard (CCIR) NTSC/PAL-M/PAL-N TV Tuning System PLL 181 ch.

  • Page 6: Operation Manual

    LC-10A3U SUPPLEMENT OPERATION MANUAL Main unit (front view) Main unit (rear view) Adjust the set stand to an angle so that the screen is easily visible. The set stand can be opened up to 80 . Rear terminal section AV input 1...

  • Page 7: Dimensions

    LC-10A3U SUPPLEMENT DIMENSIONS Unit:inch (mm)

  • Page 8: Removing Of Major Parts

    LC-10A3U SUPPLEMENT REMOVING OF MAJOR PARTS 1. Remove the five lock screws 1 off the cabinet B. 2. Push on the six hooks 2 of the cabinet B and open it slightly. 3. Disconnect all the connectors 3 from the tuner and switch PWBs. Detach the cabinet B.
  • Page 9 LC-10A3U SUPPLEMENT 5. Remove the four lock screws 5 off the main PWB. 6. Peel off the tapes 6 and detach the LCD panel unit. 7. Remove the two lock screws 7 off the R/C, LED PWB. 8. Remove the two lock screws 8 off the terminal PWB.
  • Page 10 LC-10A3U SUPPLEMENT 11.Undo the seven hooks q to release the unit frame. 12.Detach the fluorescent lampw. Panel Holder Lamp unit 10" LCD panel unit...

  • Page 11: Adjusting Procedure Of Each Section

    LC-10A3U SUPPLEMENT ADJUSTING PROCEDURE OF EACH SECTION The best adjustment is made before shipping. If any position deviation is found or after part replace is performed, adjust as follows. 1. Preparation for Adjustments (1)Use the exclusive-use AC adapter or stable DC power supply.
  • Page 12 LC-10A3U SUPPLEMENT 4. Reset of lamp error If the power LED remains red an the power is not turned on, or if repair has been performed, enter the adjustment mode to reset the lamp error. For the resetting procedure, refer to "No power" in the "trouble shooting Table" section.
  • Page 13 Skip Data_AIR ............................ All Skip Volume ..............................20 Picture ..............................30 Tint ..............................0 Color ..............................0 Black Level ............................0 SHARP ..............................0 RED-BLUE ............................0 GREEN ............................... 0 TV Color System ..........................N358 AV Color System ..........................Auto Language ............................English Blue Screen ............................

  • Page 14: Trouble Shooting Table

    LC-10A3U SUPPLEMENT TROUBLE SHOOTING TABLE No Power (Power LED indicator still in red) Go to the adjustment process mode. +B-ADJ MODEL INCH SIZE TIMER SYSTEM AUTO NTSC PWM FREQ PAL PWM FREQ CLOSED CAPTION V-CHIP TV GAIN ERROR NO RESET Move the cursor to ERROR NO RESET and click on it (to reset to zero).
  • Page 15 LC-10A3U SUPPLEMENT TROUBLE SHOOTING TABLE (Continued)
  • Page 16 LC-10A3U SUPPLEMENT TROUBLE SHOOTING TABLE (Continued)
  • Page 17 LC-10A3U SUPPLEMENT TROUBLE SHOOTING TABLE (Continued)

  • Page 18: Chassis Layout

    LC-10A3U SUPPLEMENT CHASSIS LAYOUT MAIN Unit (Side-A) MAIN Unit (Side-A) INVERTER...
  • Page 19 LC-10A3U SUPPLEMENT TUNER Unit J3305 J3304 J3301 J3404 J3302 J3403 J3401 J3303 J3402 D3401 Q3403 D3402 Q3402 Q3401 Q3303 Q3304 TU3201 TUNNER Q3203 P3701 SC3401 Q3201 Q3202 SWITCH Unit (Side-A) P4004 S4013 S4012 S4017 S4009 S4014 S4015 S4011 S4010 S4016...

  • Page 20: Block Diagram

    LC-10A3U SUPPLEMENT BLOCK DIAGRAM...
  • Page 21 LC-10A3U SUPPLEMENT...

  • Page 22: Overall Wiring Diagram

    LC-10A3U SUPPLEMENT OVERALL WIRING DIAGRAM...
  • Page 23 LC-10A3U SUPPLEMENT...

  • Page 24: Description Of Schematic Diagram

    LC-10A3U SUPPLEMENT DESCRIPTION OF SCHEMATIC DIAGRAM VOLTAGE MEASUREMENT CONDITION: CAUTION: 1. Voltages at test points are measured at the This circuit diagram is original one, therefore there may be a supply voltage of AC 120V. Signals are fed by a slight difference from yours.

  • Page 25: Schematic Diagram

    LC-10A3U SUPPLEMENT SCHEMATIC DIAGRAM Ë SWITCH and R/C, LED Unit...
  • Page 26 LC-10A3U SUPPLEMENT Ë MAIN Unit-1/2...
  • Page 27 LC-10A3U SUPPLEMENT...
  • Page 28 LC-10A3U SUPPLEMENT Ë MAIN Unit-2/2...
  • Page 29 LC-10A3U SUPPLEMENT...
  • Page 30 LC-10A3U SUPPLEMENT Ë TUNER Unit...
  • Page 31 LC-10A3U SUPPLEMENT...

  • Page 32: Printed Wiring Board Assemblies

    LC-10A3U SUPPLEMENT PRINTED WIRING BOARD ASSEMBLIES Main Unit (Side-A)
  • Page 33 LC-10A3U SUPPLEMENT P701 C314 P751 Q708 C733 L701 D710 Q709 C703 C748 IC301 T701 L705 FB709 C749 C207 L706 C753 C755 C328 C751 IC302 C1216 C321 L752 R434 C403 P2001 R1231 C405 R436 R435 P2002 C404 L806 C409 R406 C1221...
  • Page 34 LC-10A3U SUPPLEMENT Main Unit (Side-B)
  • Page 35 LC-10A3U SUPPLEMENT Q307 R307 Q301 C702 R701 Q710 R708 C715 R718 Q701 Q702 C738 R705 C701 IC702 C704 R711 R305 C706 D702 D711 FB708 C710 C716 FB706 R736 D707 R720 R756 C731 FB705 FB704 D706 D709 C734 D752 C747 FB707...
  • Page 36 LC-10A3U SUPPLEMENT TUNER Unit (Side-A)
  • Page 37 LC-10A3U SUPPLEMENT R3402 R3404 C3402 L3202 R3205 Q3202 L3201 R3306 Q3201 R3314 R3208 R3301 R3302 C3210 C3308 C3301 R3329 C3203 R3328 C3302 R3703 C3202 R3334 Q3304 Q3303 R3315 R3313 C3314 R3320 C3304 C3309 C3310 C3305 R3310 R3414 R3413 R3415 R3411...
  • Page 38 LC-10A3U SUPPLEMENT R/C, LED Unit (Side-A) R/C, LED Unit (Side-B) SWITCH Unit (Side-A) SWITCH Unit (Side-B)

  • Page 39: Parts List

    4. DESCRIPTION in USA: Contact your nearest SHARP Parts Distributor to order. in CANADA: Contact SHARP Electronics of Canada Limited For location of SHARP Parts Distributor, Please call Toll- Phone (416) 890-2100 Free; 1-800-BE-SHARP MARK: SPARE PARTS-DELIVERY SECTION MARQUE: SECTION LIVRAISON DES PIECES DE RECHANGE Ref.
  • Page 40 LC-10A3U SUPPLEMENT Ref. No. Part No. Description Code Ref. No. Part No. Description Code MISCELLANEOUS PARTS DUNTKA142DE01 F3701 QFS-B1621GEZZ J Fuse, 1.6A 125V å TUNER UNIT (Continued) F3702 QFS-B1621GEZZ J Fuse, 1.6A 125V å F3751 QFS-B2521GEZZ J Fuse, 2.5A 125V å...

  • Page 41: Switch Unit

    LC-10A3U SUPPLEMENT Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKA143DE01 DUNTKA144DE01 SWITCH UNIT R/C, LED UNIT DIODES TRANSISTORS D4016 RH-EX1271CEZZY J Zener Diode Q4106 VSDTC144EE/-1Y J DTC144EE D4017 RH-EX1271CEZZY J Zener Diode Q4107 VSUMG4/////-1Y J UMG4...

  • Page 42: Main Unit

    LC-10A3U SUPPLEMENT Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB686FE01 D709 VHDDAN222//-1Y J Diode D710 VHDDAN222//-1Y J Diode MAIN UNIT D712 VHDDAN222//-1Y J Diode D753 VHDiMN10///-1Y J Diode D754 VHDiMN10///-1Y J Diode INTEGRATED CIRCUITS D1101 VHD1SS250//1EY...
  • Page 43 LC-10A3U SUPPLEMENT Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB686FE01 C879 VCKYTV1CF684ZY J 0.68 Ceramic C902 VCKYCY1EF104ZY J 0.1 Ceramic MAIN UNIT (Continued) C905 VCEAPF1CW106MY J 10 Electrolytic C906 VCEAPF1CW106MY J 10 Electrolytic C711 VCKYCY1EB103KY J 0.01...
  • Page 44 LC-10A3U SUPPLEMENT Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB686FE01 R408 VRS-CY1JF103JY J 10k 1/16W Metal Oxide R409 VRS-CY1JF101JY J 100 1/16W Metal Oxide MAIN UNIT (Continued) R410 VRS-CY1JF101JY J 100 1/16W Metal Oxide R411...
  • Page 45 LC-10A3U SUPPLEMENT Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB686FE01 R1214 VRS-CB1JF101JY J 100 1/16W Metal Oxide R1217 VRS-CY1JF101JY J 100 1/16W Metal Oxide MAIN UNIT (Continued) R1218 VRS-CA1JF101JY J 100 1/16W Metal Oxide R1220 VRS-CY1JF472JY J 4.7k 1/16W Metal Oxide...
  • Page 46 J Plug, 4-pin GCOVA1817CESA J LED Cover SC401 QSOCN0464FJZZY J Socket, 50-pin GCOVA1850CEKA J R/C Cover SC1201 QSOCN0461FJZZY J Socket, 53-pin HBDGB3133CESK J Badge, "SHARP" SC1203 QSOCN0206FJZZY J Socket, 30-pin (LC-10A3U-S HBDGB3133CESH J Badge, "SHARP" (LC-10A3U-B HDECA0200CESA J Decoration Plate...
  • Page 47 LC-10A3U SUPPLEMENT CABINET AND MECHANICAL PARTS 2-16 2-12 2-10 2-11 2-13 SWITCH Unit 2-17 2-15 2-14 TUNER Unit MAIN Unit 1-14 1-10 3-10 1-11 R/C, LED Unit 1-17 1-16 1-12 1-15 1-16 1-12 1-13...

  • Page 48: Packing Parts

    TCAUH0011CEZZ J Caution Card TiNS-7386CEN1 J Operation Manual å UADP-0227CEPZ J AC Adapter PACKING PARTS (NOT REPLACEMENT ITEM) SPAKC5586CEZZ – Packing Case(LC-10A3U-S ) — SPAKC5587CEZZ – Packing Case(LC-10A3U-B ) — SPAKF4002CEZZ – Packing Material — SPAKP1000CEZZ – Wrapping Paper —...

  • Page 49: Packing Of The Set

    LC-10A3U SUPPLEMENT PACKING OF THE SET Polyetlylene Bag Operation Manual Antenna Cable (SSAKA0160CEZZ) (TiNS-7386CEN1) (QCNW-5730CEZZ) Batteries (2 pcs.) AC Adaptor (UADP-0227CEPZ) Buffer Material (SPAKX2060CEZZ) Wireless Remote Control (RRMCG1559CESA) AC Cord (QACCD3099CEZZ) Wall Mount Parts (LANGU9053CE01) Buffer Material (SPAKX2056CEZZ) Wrapping Paper...
  • Page 50 LC-10A3U SUPPLEMENT COPYRIGHT © 2003 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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