Sharp LC-20S5E-BK 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.
MODEL
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
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SERVICING NOTICES ON CHECKING ..............................................................................
HOW TO ORDER PARTS ....................................................................................................
IMPORTANT .........................................................................................................................
HOTEL MODE FUNCTION ..................................................................................................
ABOUT LEAD FREE SOLDER (PbF) ..................................................................................
GENERAL SPECIFICATIONS..............................................................................................
DISASSEMBLY INSTRUCTIONS ........................................................................................
SERVICE MODE LIST..........................................................................................................
WHEN REPLACING EEPROM (MEMORY) IC ....................................................................
SERVICING FIXTURES AND TOOLS .................................................................................
INSTALL FOR WRITING TOOLS.........................................................................................
UPDATE FOR VCTP SOFTWARE.......................................................................................
UPDATE FOR EEPROM DATA ...........................................................................................
ELECTRICAL ADJUSTMENTS ............................................................................................
TROUBLESHOOTING GUIDE .............................................................................................
BLOCK DIAGRAM ................................................................................................................
PRINTED CIRCUIT BOARDS ..............................................................................................
SCHEMATIC DIAGRAMS ....................................................................................................
WAVEFORMS ......................................................................................................................
MECHANICAL EXPLODED VIEWS .....................................................................................
REPLACEMENT PARTS LIST .............................................................................................
Page
A1-1
A1-1
A1-1
A1-2
A1-3
A2-1~A2-5
B1-1~B2-2
C-1
C-2
C-3
C-3
C-4~C-7
C-8, C-9
D-1~D-4
E-1~E-5
F-1~F-6
G-1~G-8
H-1~H-26
I-1
J-1, J-2
K1-1~K2-9
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LC-20S5E-BK
SERVICE MANUAL
SHARP CORPORATION

Sharp LC-20S5E-BK Specifications

General

Screen Size	20 inches
Display Technology	LCD
Aspect Ratio	4:3
HDMI Ports	0
USB Ports	0
Resolution	640 x 480 pixels
Inputs	Composite, S-Video, VGA

Summary

Servicing Notices and Precautions

General Servicing Notices

Covers safe handling, parts usage, and post-service checks.

Parts Ordering and Solder Guidelines

Details ordering parts and handling lead-free solder.

General Specifications

TV System, Tuning, Power, and Environmental Specs

Covers LCD, tuning, power, temp, humidity, OSD, timer.

Remote Control Specifications

Lists remote control unit details and keys.

Product Features and Interfaces

Details product features and I/O terminals.

Accessories, Packaging, and Dimensions

Lists accessories, packaging, physical size, and weight.

Repair Procedures

Disassembly Instructions

Step-by-step guide for disassembling the unit.

Flat Package IC Service

Detailed guide for removing and installing flat package ICs.

Service Mode List and Adjustments

Explains service modes and electrical adjustments.

EEPROM and Software Updates

Procedures for updating EEPROM and VCTP software.

Troubleshooting and Diagnostics

Troubleshooting Guide

Flowcharts for common issues like power, picture, color, OSD, lines.

Block Diagrams and Waveforms

System overview diagrams and signal waveform examples.

Component and Assembly Information

Printed Circuit Board Layouts

Component placement diagrams for main and power boards.

Schematic Diagrams

Detailed circuit diagrams for various sections.

Mechanical Exploded Views

Diagrams showing mechanical assembly breakdown.

Replacement Parts List

Comprehensive list of mechanical and electrical parts.