AOC LE32A3520/61 User Manual

32″ LCD TV AOC LE32A3520/61
1
Service
Service
Service
Horizontal Frequency
15.326~67.5 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……...…………..….…….……….......34
6.3 Key Board……………………………………….......35
6.4 IR Board……………………………………….......35
7. Adjustment..............................................................36
8. Block Diagram.…….................................................37
9. Schematic Diagram…..…………....………………...39
9.1 Main Board…………………………………...….......39
9.2 Power Board…………..….….……...………….......51
9.3 Key Board……………………………………….......56
9.4 IR Board……………………………………….......57
10. Exploded View………………………………….…...58
11. BOM List……………….………………….………….60
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……..……………….…….……….....17
2.4 Front Panel Control Knobs…….………….……….....19
3. Input/Output Specification…………....................…....20
4. Mechanical Instructions…………………….................22
5. Repair Flow Chart ……………………….…….…….....26
6. PCB Layout ………………..………………....….......33

AOC LE32A3520/61 Specifications

General

Brand	AOC
Model	LE32A3520/61
Category	LCD TV
Language	English

Summary

Important Safety Notice

Revision List

General Specification

Operating Instructions

The Use of Remote Control

Explanation of remote control buttons and their functions.

To Use the Menus

Instructions for navigating and using the TV's on-screen menus.

How to Connect (Menu Navigation)

Steps for accessing and selecting settings within the TV menus.

Settings Menu

Channel Search

Procedures for finding and tuning TV channels.

Other Adjustments

Details on various TV picture and sound adjustments.

Sound and OSD

Configuration options for audio and on-screen display.

PC

Settings for connecting and optimizing the TV as a PC monitor.

System Reset

Instructions for restoring TV settings to factory defaults.

Media Functions (USB)

Entering to USB Media

Steps to access USB media files like photos, music, and videos.

Viewing Photos

Instructions for displaying and navigating photo slideshows.

Reading Text files

How to Connect (Physical)

Antenna and Cable Connections

Connecting TV to antenna or cable sources for broadcast reception.

High-Definition and Component Connections

Connecting HD sources via HDMI or Component video.

Composite and PC Connections

Connecting AV devices and PCs via Composite or VGA.

USB and Earphone Connections

Connecting USB storage devices and audio accessories.

Front Panel Control Knobs

Input / Output Specification

RGB Signal Input

Technical details for VGA RGB signal input.

HDMI Digital Connector Pin Assignments

Pinout details for the HDMI digital connector.

Compatible Mode Tables

Mechanical Instructions

Repair Flow Chart

No power

Diagnostic steps for when the TV does not power on.

Can't start

Troubleshooting steps for TV startup problems.

Abnormal display

Steps to diagnose and resolve display issues.

No display

Troubleshooting for scenarios where the screen remains black.

Sound problem

Steps to fix issues related to TV audio.

Remote control malfunction

Troubleshooting guide for remote control failures.

OSD is unstable or can't work normally

Steps to resolve issues with the On-Screen Display.

PCB Layout

Main Board

Layout diagram of the main circuit board.

Power Board

Layout diagram of the power supply board.

Key Board

Layout diagram of the front panel key input board.

IR Board

Layout diagram of the infrared receiver board.

Adjustment

ADC Adjustment

Steps for adjusting Analog-to-Digital Converter settings.

White Balance Adjustment

Procedure for calibrating the TV's white balance.

Block Diagram

Schematic Diagram

Main Board

Schematic diagram for the TV's main circuit board.

Power Board

Schematic diagram for the TV's power supply board.

Key Board

Schematic diagram for the front panel key input board.

IR Board

Schematic diagram for the infrared receiver board.

Exploded View

BOM List