Service manual

ManualsBrandsSharp ManualsFlat Panel TVLC-20S2US

LC-20S1U-S

LC-20S1U-B

SERVICE 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.

MODELS

LC-20S1U-S

LC-20S1U-B

SHARP CORPORATION

This document has been published to be used for

after sales service only.

The contents are subject to change without notice.

LCD COLOR TELEVISION

CONTENTS

» IMPORTANT SERVICE SAFETY PRECAUTION .........................................................................................2

» SPECIFICATIONS ........................................................................................................................................5

» OPERATION MANUAL .................................................................................................................................6

» DIMENSIONS ...............................................................................................................................................9

» REPLACEMENT PARTS LIST ....................................................................................................................10

» PACKING OF THE SET ..............................................................................................................................13

Page

OUTLINE

The above model is based on the LC-20S2U-S. Its desktop stand has been redesigned. This Service Manual

covers the modifications only. For other technical data, refer to the Service Manual for LC-20S2U-S (S73F4LC-

20S2U).

S34Q8LC-20S1U

Summary of content (14 pages)

PAGE 1
LC-20S1U-S LC-20S1U-B SERVICE MANUAL S34Q8LC-20S1U LCD COLOR TELEVISION MODELS LC-20S1U-S LC-20S1U-B 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 The above model is based on the LC-20S2U-S. Its desktop stand has been redesigned. This Service Manual covers the modifications only.
PAGE 2
LC-20S1U-S LC-20S1U-B IMPORTANT SERVICE SAFETY PRECAUTION Ë Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the servicing guidelines which follow: • Use an AC voltmeter having with 5000 ohm per volt, or higher, sensitivity or measure the AC voltage drop across the resistor.
PAGE 3
LC-20S1U-S LC-20S1U-B 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. conduite électrique ou une prise de terre branchée à la terre. • Utiliser un voltmètre CA d'une sensibilité d'au moins 5000Ω/V pour mesurer la chute de tension en travers de la résistance.
PAGE 4
LC-20S1U-S LC-20S1U-B Precautions for using lead-free solder 1 Employing lead-free solder "All 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: LFa Indicates lead-free solder of tin, silver and copper. 2 Using lead-free wire solder When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder.
PAGE 5
LC-20S1U-S LC-20S1U-B SPECIFICATIONS Items Model LCD panel Number of dots Video color systems TV Standard (CCIR) TV Tuning System TV function STEREO CATV Y/C FILTER Brightness Viewing angles Audio amplifier Speakers AV-IN1 AV-IN2 Terminals COMPONENT Antenna Headphone OSD language Power supply Power consumption Weight Accessories LC-20S1U 19.7” Advanced Super View & BLACK TFT LCD 921,600 dots VGA N358, N443, PAL, PAL-M, PAL-N, SECAM, PAL-60 NTSC/PAL-M/PAL-N PLL 181 ch. MTS+SAP 125 ch.
PAGE 6
Upper control panel 6 35° Adjustable range * The examples used throughout this manual are based on the LC-20S1U model. A green indicator lights when the power is on and a red indicator lights when in the standby mode (the indicator will not light when the main power is off). POWER indicator The Optical Picture Control indicator lights up green when the BRIGHTNESS is set to AUTO.
PAGE 7
9 8 6 7 2 3 4 5 1 VOL MUTE DISPLAY SLEEP POWER CH AUDIO ONLY CC ENTER BRIGHT FLASHBACK TV/VIDEO MENU PIC. FLIP REMOTE CONTROL 10 17 15 16 13 14 12 11 7 Set the channel. 17 Channel Select Return to the previous channel. 16 FLASHBACK Select a Liquid Crystal Television input source. 15 TV/VIDEO Display Closed Caption subtitles. 14 CC Display the menu screen. 13 MENU Select a desired item on the screen. 12 '/"/\/| (Cursor control) Set the orientation of the picture.
PAGE 8
• VCR • Laser disc player To AV-IN2 terminal PC connection is not possible. For the cable, use a commercially available audio/video cable. Only connect audio/video signals to AV-IN1 and 2 terminals. Connecting other signals may result in a malfunction. AV-IN1 has 2 video input terminals: VIDEO and S-VIDEO. When you connect external devices to both terminals (and if you select AV-IN1), you can only view pictures from the S-VIDEO terminal.
PAGE 9
LC-20S1U-S LC-20S1U-B DIMENSIONS 649/64 (172) Unit: inch (mm) 137/32 (336) 1529/32 (404) 12° 69/64 (156) 1821/32 (474) 119/64 (283) 35° 163/16 (411) /16 (5) 9 (228.5) 1023/64 (263) 141/64 (356) 1127/32 (300.8) 15 7/8 (403.
PAGE 10
LC-20S1U-S LC-20S1U-B Ref. No. Part No. ★ Description Code PARTS LIST Ref. No. Part No. ★ Description Code LISTE DES PIECES PARTS REPLACEMENT CHANGE DES PIECES Replacement parts which have these special safety characteristics identified in this manual ; electrical components having such features are identified by å and shaded areas in the Replacement Parts Lists and Schematic Diagrams.
PAGE 11
LC-20S1U-S LC-20S1U-B CABINET AND MECHANICAL PARTS H 1 1-2 A 1-3 1-4 M A 1-1-4 1-1-6 1-1-1 D 1-1-3 G 1-1-2 1-1-5 5-3-5 5-3-4 B E 1-4 F 5-3-2 1-3 5-3-1 5-3-7 C 5-3-6 1-1-3 1-1 5-3-3 O K 1-1-7 5-3-8 A A 26 1-1-8 F R/C,LED PWB 5-3-4 B Q 5-4 B E 5-2 5-2-1 5-3 5-2 5-2-1 5-14 5-2 5-2-1 5-10 3 5-2 5-2-1 5-2 5-2-1 3-2 G 6 5-5 5-13 D 5-6 5-12 5-9 5-11 10 2-7 2-10 5-8 5-1 H I 2-11 20 2-5 2-4 5-7 B 3-1 12 A 5 22 2-1 5-13 3-3 2-2 3-1-3 14 25 3-1-
PAGE 12
LC-20S1U-S LC-20S1U-B Ref. No. Part No. ★ Description Code Ref. No.
PAGE 13
LC-20S1U-S LC-20S1U-B PACKING OF THE SET Operation Manual (TiNS-A857WJZZ:LC-20S1U-S) (TiNS-A857WJN1:LC-20S1U-B) Cable Clamp (1pc.) (LHLDWA002WJSB) Questionnaire Card (TCADEA028WJZZ:LC-20S1U-S) (TCADEA126WJZZ:LC-20S1U-B) ★ "AAA" size Battery (2pcs.
PAGE 14
LC-20S1U-S LC-20S1U-B COPYRIGHT © 2004 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. TQ1743-S Apr. 2004 Printed in Japan Design and Production Information Design : Japan Production : SEMEX MI.