Sharp LC-40LE280X User Manual

SERVICE MANUAL
VER.1
No. S67M88LC4032LE280X/WH
LED BACKLIGHT TV
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.
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
SAFETY PRECAUTION
IMPORTANT SERVICE SAFETY
PRECAUTION i
PRECAUTION FOR USING LEAD-
FREE SOLDER ii
OUTLINE
MAJOR SERVICE PARTS iii
CHAPTER 1.
SPECIFICATIONS
[
1] SPECIFICATIONS 1-1
C
HAPTER 2. OPERAT
ION MANUAL
[1] OPERATION MANUAL 2-1
C
HAPTER 3. ADJUS
TMENT
[1] ADJUSTMENT ( LC-32LE280X ) 3-1
[2] ADJUSTMENT ( LC-40LE280X ) 3-2
[3] USB CLONE SPECIFICATIONS 3-3
[4] PUBLIC MODE SETTING PROCE-
DURE 3-3
C
HAPTER 4. TROUBLESHOOTING TA
BLE
[1] TROUBLESHOOTING TABLE 4-1
CHAPTER
5. SYSTEM BLOCK DIAGRA
M
[1] SYSYTEM BLOCK DIAGRAM 5-1
CH
APTER 6. PRINTE
D WIRING BOARD AS-
SEMBLIES
[1] MAIN UNIT 6-1
[2] POWER UNIT ( LC-32LE280X ) 6-4
[3] POWER UNIT ( LC-40LE280X ) 6-8
CH
APTER 7. DESCRI
PTION OF SCHEMATIC
DIAGRAM
[1] DESCRIPTION OF SC
HEMATIC
DIA-
GRAM 7-1
Parts Guide
TopPage
CONTENTS
LC-32LE280X-WH
LC-32LE280X
LC-40LE280X
LC-40LE280X-WH

Sharp LC-40LE280X Specifications

General

Brand	Sharp
Model	LC-40LE280X
Category	LED TV
Language	English

Summary

LED Backlight TV Service Manual

Model Identification

Identifies the TV models covered by this service manual.

Safety Precautions

Service Safety Precautions

Critical safety guidelines and warnings for service personnel.

Product Outline

Major Service Parts

Product Specifications

TV Specifications

Detailed technical specifications for the TV models.

Adjustment Procedures

Adjustment Process and Key Operations

Details the steps and key operations for service mode adjustments.

Software Upgrading

Software Upgrade Methods

Instructions for updating the TV's firmware via USB.

TV Adjustment Items

Software Packages and HDCP Key

Picture and White Balance Adjustment

Procedures for picture and white balance adjustments, including auto settings.

VCOM Adjustment Method

Steps for performing VCOM adjustment using specialized equipment.

Troubleshooting

Troubleshooting Guide

Guides for diagnosing and resolving common TV issues.

Video Signal Issues

Diagnosing no video problems with RF and external video inputs.

Audio Signal Issues