AOC L19W631 - User Manual

19’’ LCD TV AOC L19W631
1
Service
Service
Service
Horizontal Frequency
31.5-80 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
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 Menu…...…………………….……….......6
2.3. How To Connect…….…………………….……….....11
2.4. Front Panel Control Knobs……………….……….....13
3. Input/Output Specification…………....................…....14
4. Mechanical Instructions…………………….................17
5. Repair Flow Chart ……………………….…….…….....20
6. PCB Layout ………………..………………....….......25
6.1.Main Board…………..………….……….......25
6.2.Power Board……………..………….……….......28
6.3.Tuner Board……………………..………..............31
6.4. IR Board………………………………..……….......31
7. White-Balance, Luminance Adjustment...................32
8. Block Diagram.……...........................................34
9. Schematic……………...…………..………………...35
9.1 Main Board…….…………..……………….….......35
9.2.Power Board…………….……….………….......47
9.3.Tuner Board……………………..………..............49
9.4.Key Board……………………..………..............53
10. Exploded View..……………............................…..54
11. BOM List……………….………………………….….55
12.Different Parts List…………………………….……73

AOC L19W631 Specifications

General

Screen Size	19 inches
Resolution	1440 x 900
Aspect Ratio	16:10
Brightness	300 cd/m²
Contrast Ratio	1000:1
Response Time	5 ms
Speakers	2 x 3W
Power Consumption	45W
Viewing Angle	160° (horizontal)
Input Ports	VGA, Composite

Summary

Important Safety Notice

General Specifications

Operating Instructions

Remote Control Functions

Explains the function of each button on the remote control for TV operation.

On-Screen Menu System

Guides users through navigating OSD menus for audio, video, V-Chip, function, and TV settings.

Connectivity and Controls

Peripheral Connection Guide

Instructions for connecting external devices like VCRs, DVD players, and game consoles to the TV.

Front Panel Controls Explained

Details the function and operation of the physical control buttons on the TV.

Troubleshooting and Repair

Repair Flowcharts

Diagnostic guides for common issues like no power, no display, abnormal display, or no sound.

Hardware Schematics and Layouts

PCB Layout Diagrams

Visual representation of component placement on the main circuit boards.

Power Board Schematic

Detailed schematic and layout for the TV's power supply board.

Main Board Schematic Diagram

Comprehensive circuit diagram for the TV's main processing board.

Parts and Assembly Information

Exploded View and BOM List

Provides a visual breakdown of the TV's assembly and a list of all components.