AOC LE39D1440/20 User Manual

32″& 39″LED TV AOC LE32D1440/20-LE39D1440/20
Copyright © 2013 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.
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Service
Service
Service
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
6.2 Power Board……...…………..….…….……….......34
6.3 IR Board…...…………………………………….......38
6.4 KEY Board…...………………………................….38
7. Adjustment..............................................................39
7.1 WB Adjustment……………………..……...………39
7.2 FW Upgrade.………………………………...………40
8. Block Diagram…..…………....………………...41
9. Schematic Diagram…..…………....………………...43
9.1 Main Board…………..….….……...………….......43
9.2 Power Board…………..….….……...………….......57
9.3 IR Board…...…………….……….…………….........62
9.4 KEY Board…...………………………………….…. .63
10. Exploded View………………………………….…...64
11. BOM List……………….…..…………….………….66
Table of Contents.......……....................................…........1
Important Safety Notice.......................................……......2
Revision List…………………………………………………3
1. General Specification..............................……...…........4
2. Operating Instructions………………...…….……….......6
2.1 The Use of Remote Control…….…..……….…….......6
2.2 To Use the Menus….....………………….…..…….......7
2.3 How to Connect……..……………….…….……….....17
2.4 Front Panel Control Knobs…….………….………....19
3. Input/ Output Specification………....................…....21
4. Mechanical Instructions…………………….................23
5. Repair Flow Chart ……………………….…….…….....26
6. PCB Layout ………………..………………....….......32
6.1 Main Board……...…………..….…….……….......32

AOC LE39D1440/20 Specifications

General

Brand	AOC
Model	LE39D1440/20
Category	TV
Language	English

Summary

SAFETY NOTICE

Revision List

General Specification

Operating Instructions

The Use of Remote Control

Explains how to use the TV remote control functions for various operations.

To Use the Menus

Details navigation and selection within the TV menu system for settings.

Menu Settings

Image Menu Settings

Adjusts picture parameters like contrast, brightness, color, and picture modes.

Sound Menu Settings

Configures audio settings such as volume, equalizer, sound modes, and advanced audio features.

Configuration Menu Settings

Manages system settings like language, input, display options, and parental controls.

USB Functionality

USB Menu Operations

Describes how to insert media via USB for playback and viewing of files.

Connecting Peripherals

Antenna and Digital Connection

Instructions for connecting the TV to an antenna for digital signal reception.

Video Component and DVD Player Connection

Guides for connecting devices via component video and DVD players.

AV and Audio Connections

Details on connecting AV sources and audio output devices like speakers.

Front Panel and Side Controls

Front Panel Ports and Connections

Identifies and explains the function of front and side panel connectors and inputs.

Side Control Panel Guide

Describes the buttons and their functions on the TV's side control panel for operation.

Input/Output Specifications

Digital Connector Pin Assignments

Details pin configurations for D-Sub and HDMI digital connectors.

HDMI Timing Standards

Lists timing parameters for various video resolutions over HDMI.

Mechanical Instructions

Disassembly Procedures

Step-by-step guide for disassembling the TV's outer casing and internal components.

Troubleshooting Flowcharts

No Power Troubleshooting

Diagnostic steps for when the TV does not power on or show any indication.

Startup and Display Issues

Flowcharts for resolving startup failures and abnormal screen display problems.

Sound and Remote Control Problems

Guides for diagnosing and fixing sound issues and remote control malfunctions.

PCB Layout Diagrams

Main Board PCB Layout

Visual representation of the main printed circuit board components and layout.

Power Board PCB Layout

Diagram illustrating the component placement on the power supply board.

Component Board Diagrams

IR Board Layout

Shows the layout and components of the infrared receiver board.

Key Board Layout

Diagram of the button control board layout and components.

Service Adjustments and Firmware

White Balance Adjustment Procedure

Steps for calibrating white balance using factory mode and signal generator.

Firmware Update Instructions

Guide on preparing and performing a firmware upgrade via USB.

System Diagrams

Block Diagram Overview

High-level functional block diagram of the TV's main components and interfaces.

Schematic Diagrams

Detailed circuit schematics for various boards like Main, Power, and Audio.

Parts Identification

Exploded View of TV Components

Visual breakdown of the TV's parts with numbered references for identification.

Bill of Materials (BOM)

Comprehensive list of parts, their numbers, descriptions, and quantities for service.