Sharp LC-39LD145E - User Manual

1
LC-32LD145
LC-39LD145
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
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 ....................................................................................................... 4
IMPORTANT SERVICE SAFETY PRECAUTIONS ................................................................................ 5
OPERATION MANUAL ........................................................................................................................... 8
DIMENSIONS .................................................................................................................................... 11
CAUTION WHEN REMOVE THE REAR CABINET .................................................................................... 13
INTRODUCTION ............................................................................................................................... 16
CIRCUIT DESCRIPTIONS .................................................................................................................. 19
SERVICE MENU SETTINGS .................................................................................................................... 49
SOFWARE UPDATE .............................................................................................................................. 54
TROUBLESHOOTING ........................................................................................................................... 54
OVERALL WIRING DIAGRAM ........................................................................................................ 63
SCHEMATIC DIAGRAMANS ........................................................................................................... 65
REPLACEMENT PART LISTING ................................................................................................ 83
Issued:26
th
July 2013
SE00LC32LD145
MODEL
LC-32LD145E
LC-32LD145K
LC-32LD145V
LC-39LD145E
LC-39LD145K
LC-39LD145V
This document has been published to
be used for after sales service only.
The contents are subject to change without notice.
SHARP ELECTRONICS (UK) Limited
4 Furzeground Way, Stockley Park
Uxbridge, UB11 1EZ, UK
50242458
LCD COLOUR TELEVISION OPERATION MANUAL
ENGLISH
LC-32LD145E
LCD-FARB-TV BEDIENUNGSANLEITUNG
DEUTSCH
TELEVISIONE A COLORI LCD MANUALE DI FUNZIONAMENTO
ITALIANO
TÉLÉVISEUR LCD COULEUR MODE D'EMPLOI
FRANÇAIS
17MB82 CHASSIS
SHARP CORPORATION

Sharp LC-39LD145E Specifications

General

Brand	Sharp
Model	LC-39LD145E
Category	LCD TV
Language	English

Summary

Important Service Safety Precautions

Operation Manual

Remote Control Operation

Explains how to use the remote control buttons for TV functions.

Introduction

General Block Diagram

Provides a high-level block diagram of the TV's main components and connections.

MB82 Placement of Blocks

Circuit Descriptions

Tuner Circuit Description (MXL601)

Details the functionality and features of the MXL601 tuner IC.

Audio Amplifier Stage (TAS5721)

Power Stage Description

Covers the power supply unit and DC voltage generation for the chassis.

MediaTek Microcontroller (MT5820)

Describes the MT5820 IC, its features, and capabilities for advanced applications.

USB Interface Circuit

Scaler and LVDS Sockets

Service Menu Settings

Video Settings

Configuration options for video parameters within the service menu.

Audio Settings

Options Settings

Software Update

Troubleshooting

No Backlight Troubleshooting

Addresses issues with the TV panel lacking picture or backlight.

CI Module Troubleshooting

LED Blinking and IR Issues

Input;Audio;Signal Problems

Schematic Diagrams

Main Unit and Peripheral Schematics

Power Supply Schematics

Detailed circuit diagrams for the power supply unit and its various voltage rails.

Audio, Memory, and HDMI Schematics

Circuit diagrams for audio amplifier stages, memory, and HDMI interfaces.

LVDS, Tuner, and Converter Schematics

Printed Wiring Board

Main Board Printed Wiring

Power Board Printed Wiring

Replacement Part Listing

Integrated Circuits and Transistors

Part numbers and descriptions for ICs and transistors used in the main unit.

Diodes and Packaged Circuits

Coils, Filters, and Capacitors