AOC LE40A1330/64

39″LCD TV AOC LE40A1330/64
Copyright © 2012 by TPV Corporation. All rights reserved. Specifications are subject to change without notice.
No part of this publication may be reproduced in any form or means, without the prior written permission of TPV Corporation. Otherwise we will
reserve the right to investigate the legal responsibility.
1
Service
Service
Service
Horizontal Frequency
31.5~60 KHz
TABLE OF CONTENTS
Description Page Description Page
SAFETY NOTICE
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS
AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
6.1 Main Board……...…………..….…….……….......33
6.2 Power Board……...…………..….…….……….......36
6.3 Key Board…...………………………………….......39
6.4 IR Board…...…………………………………….......39
7. Adjustment..............................................................40
8. Schematic Diagram…..…………....………………...41
8.1 Main Board…………..….….……...………….......41
8.2 Power Board…………..….….……...………….......50
8.3 Key Board……………….……….…………….........52
8.4 IR Board…...…………….……….…………….........53
9. Exploded View………………………………….…...54
10. BOM List……………….……………….………….57
Table of Contents.......……....................................…........1
Important Safety Notice.......................................……......2
Revision List…………………………………………………3
1. General Specification..............................……...…........4
2. Operating Instructions………………...…….……….......5
2.1 The Use of Remote Control…….…..……….…….......5
2.2 To Use the Menus….....………………….…..…….......6
2.3 How to Connect……..……………….…….……….....18
2.4 Front Panel Control Knobs…….………….……….....20
3. Input/ Output Specification………....................…....21
4. Mechanical Instructions…………………….................23
5. Repair Flow Chart ……………………….…….…….....26
6. PCB Layout ………………..………………....….......33

AOC LE40A1330/64 Specifications

General

Brand	AOC
Model	LE40A1330/64
Category	LCD TV
Language	English

Summary

Important Safety Notice

General Safety Precautions

Describes essential safety practices for servicing electronic equipment containing high voltages.

Laser Product Safety

Details precautions for products containing lasers, including avoiding direct beam exposure.

Handling LCD Module

Provides specific guidance for handling the LCD module, including ESD protection and cleaning.

Revision List

General Specification

Operating Instructions

Remote Control Functions

Explains how to use the remote control buttons for TV operation and menu navigation.

Menu and Power Operations

Describes how to use TV menus for settings and control power on/off functions.

Input Source Selection

Guides on selecting different input signal sources for the TV via remote or menu.

On-Screen Menu Navigation

Explains how to navigate and select items within the TV's on-screen menus using remote keys.

Picture Settings Configuration

Details how to adjust picture parameters like brightness, contrast, color.

Picture Settings for PC Source

Specific picture adjustments for PC input, including aspect ratio and resolution.

Audio Settings Configuration

Explains audio configuration options like bass, treble, balance, and sound modes.

TV Features and System Settings

Covers various TV features and system settings like language and child lock.

Channel Setup and Search

Instructions for tuning and managing TV channels.

Manual Channel Search Procedure

Detailed steps for manually searching and tuning TV channels using specific parameters.

Computer Setup

Details on configuring the TV when connected to a PC, including auto-adjust and positioning.

USB Media Center Operations

Instructions for using the USB media player for photos, music, and videos.

USB Media Playback Functions

Guide on playing music, video, and reading text files from a USB device.

How to Connect

AntennaCable and HDMI Connections

How to connect TV antenna/cable and HDMI sources for optimal signal reception.

Composite, Video Out, and PC Connections

Connecting via composite AV, video out, PC via VGA, USB and headphone ports.

Front Panel Control Knobs

Input Output Specification

RGB Signal Input Pinout

Pin assignment details for the VGA connector used for RGB signal input.

HDMI Digital Connector Pin Assignments

Pin assignment details for the HDMI connector used for digital audio/video input.

Mechanical Instructions

Repair Flow Chart

No Power Troubleshooting

Steps to diagnose and fix issues where the TV does not power on or show any display.

Cannot Start Troubleshooting

Steps to diagnose and fix problems where the TV fails to start or boot up correctly.

Abnormal Display Troubleshooting

Steps to diagnose and fix issues related to abnormal or distorted picture display.

No Display Troubleshooting

Steps to diagnose and fix issues where the TV displays no picture or is completely black.

Sound Problem Troubleshooting

Steps to diagnose and fix issues related to no sound or abnormal audio output.

Remote Control Malfunction Troubleshooting

Steps to diagnose and fix problems related to the TV's remote control operation.

OSD Instability Troubleshooting

Steps to diagnose and fix issues where the On-Screen Display is unstable or not working.

PCB Layout

Main Board Layout

Component layout diagram for the TV's main circuit board.

Power Board Layout

Component layout diagram for the TV's power supply circuit board.

Key Board Layout

Component layout diagram for the TV's key input board.

IR Board Layout

Component layout diagram for the TV's infrared receiver board.

Adjustment

Factory Mode Access

How to enter the factory service mode for advanced TV adjustments and diagnostics.

ADC and White Balance Adjustment

Procedures for calibrating ADC and white balance settings for optimal picture quality.

Schematic Diagram

Main Board Schematic

Circuit diagram detailing the electronic components and connections of the main board.

Power Board Schematic

Circuit diagram detailing the electronic components and connections of the power board.

Key Board Schematic

Circuit diagram detailing the electronic components and connections of the key board.

IR Board Schematic

Circuit diagram detailing the electronic components and connections of the IR board.

Exploded View

BOM List