Sharp LC-32LE240EV User Manual

1
LC-32LE240
LC-40LE240
SERVICE MANUAL
LED LCD COLOUR TELEVISION
160mm
125mm
100mm
80mm
63mm
50mm
40mm
31.5mm
25mm
20mm
A-data-1
sharp.
Corporate Trademark
DVB-T / DVB-C (HDTV), PAL B/G, I / SECAM B/G, D/K, L/L’ SYSTEM COLOUR TELEVISION
1st Edition
In the interests of user safety (required by safety
regulations in some countries) the set should be re-
stored to its original condition and only parts identical
to those specied should be used.
CONTENTS
TABLE OF CONTENTS ....................................................................................................................... 2
ELECTRICAL SPECIFICATIONS ....................................................................................................... 5
IMPORTANT SERVICE SAFETY PRECAUTIONS ................................................................................ 7
OPERATION MANUAL ........................................................................................................................... 10
DIMENSIONS ..................................................................................................................................... 16
INTRODUCTION .................................................................................................................................. 18
CIRCUIT DESCRIPTIONS .................................................................................................................. 21
SERVICE MENU SETTINGS ........................................................................................................... 53
SOFTWARE UPDATE ............................................................................................................................ 58
TROUBLESHOOTING ..................................................................................................................... 59
OVERAL WIRING DIAGRAM ........................................................................................................... 67
SCHEMATIC DIAGRAMS ................................................................................................................ 69
PRINTED WIRING BOARD ....................................................................................................................... 78
REPLACEMENT PARTS LISTING ............................................................................................... 79
CABINET AND MECHANICAL PARTS LISTING ...................................................................... 99
Issued: 10
th
April 2012
MODEL
LC-32LE240E-EK
LC-32LE240EV-RU
LC-40LE240E-EK
LC-40LE240EV-RU
This document has been published to
be used for after sales service only.
The contents are subject to change without notice.
LCD COLOUR TELEVISION OPERATION MANUAL
ENGLISH
50201074
SHARP ELECTRONICS (Europe) GmbH
Sonninstraße 3, D-20097 Hamburg
SHARP CORPORATION
http://www.sharp-eu.com
LC-32LE240E
17MB62 CHASSIS
SHARP CORPORATION

Sharp LC-32LE240EV Specifications

General

Screen Size	32 inches
Display Type	LCD
Backlight Type	LED
HDMI Ports	2
USB Ports	1
Aspect Ratio	16:9
Refresh Rate	50 Hz
Power Consumption	45W
Resolution	1366 x 768
Audio Output	10W (5W x 2)

Summary

Introduction and System Overview

0. INTRODUCTION

Overview of the 17MB62 mainboard and its capabilities.

0.1 General Block Diagram

Visual representation of the main system components and their connections.

0.2 MB62 Placement of Blocks

Layout of key components on the MB62 mainboard.

Specifications and Safety Precautions

ELECTRICAL SPECIFICATIONS

Detailed technical specifications including power, panel, and connectivity.

Cautions regarding use in high and low temperature environments

Guidelines for operating the TV in different temperature conditions.

IMPORTANT SERVICE SAFETY PRECAUTIONS

Crucial safety guidelines for service technicians.

Operation Manual

Remote Control Buttons

Explains the function of each button on the remote control handset.

LCD TV and Operating Buttons

Identifies and describes the TV's front, rear, and control panel buttons.

Connecting Devices and Inputs

Guide to connecting external devices via back, side connectors, USB, PC, and DVD.

Remote Control Handset Operation

Information on battery insertion and basic operation of the remote.

Circuit Descriptions

1. TUNER(TU3)

Description of the TV's tuner module and its features.

2. AUDIO AMPLIFIER STAGE WITH AZAD2102(U163, U164)

Details of the AZAD2102 audio amplifier stage and its specifications.

3. AUDIO AMPLIFIER STAGE WITH TPA3113(U168)

Information on the TPA3113 audio amplifier stage, features, and ratings.

Microcontroller, Interfaces, and Memory

MICROCONTROLLER – MSTAR(U5)

Description, block diagram, and reset circuit for the MSTAR microcontroller.

CI INTERFACE

Description of the Common Interface slot and its power switch.

USB INTERFACE

Details of the USB interface, its ports, and connected ICs.

DDR2 SDRAM K4T1G164QF (U155)

Description, features, and pinning of the DDR2 SDRAM module.

Power Stage and Management

POWER STAGE

Overview of the DC voltages and power supply units used in the chassis.

Power Management

Power management schemes for different power supply configurations.

Troubleshooting Common Issues

TROUBLESHOOTING

Common problems and their potential causes and solutions.

No Backlight Problem

Troubleshooting steps for no backlight issues, checking specific pins and supplies.

No Sound Problem

Steps to resolve no audio issues at speaker or headphone outputs.

No Signal Problem

Steps to resolve the "no signal" issue in TV mode.

Diagrams and Board Layout

OVERALL WIRING DIAGRAM

Overall wiring diagram for the LC-32LE240 model.

SCHEMATIC DIAGRAMS

Contains various schematic diagrams for different sections of the TV.

POWER SUPPLY Diagram

Detailed schematic of the TV's power supply unit.

PRINTED WIRING BOARD

Visual representation of the component layout on the PCB.

Parts Listing

REPLACEMENT PARTS

List of replacement parts with part numbers and descriptions.

CABINET AND MECHANICAL PART LISTING

List of cabinet and mechanical parts for the TV models.

ACCESSORIES PARTS LISTING

List of accessories included with the TV.