AOC LE24H138, Руководство по обслуживанию

Страница: 1 / 108

21.5 ″ & 24 ″ LCD TV AOC LE22/24H138
1
Service
Service
Service
Horizontal Frequency
31~68 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
6.4 Key Board………………………..……..……….......43
6.5 IR Board………………………….……..……….......43
7. Adjustment..............................................................44
7.1 ADC Adjustment……………………..……...………44
7.2 FW Upgrade.………………………………...………45
7.3 The Writing VGA & HDMI EDID….………...………52
8. Block Diagram.…….................................................57
9. Schematic Diagram…..…………....………………...59
9.1 Main Board…………………………………...….......59
9.2 Power Board…………..….….……...………….......68
9.3 Led Board………………………..……..……….......70
9.4 Key Board……………….……….…………….........71
9.5 IR Board……...………….……….…………….........72
10. Exploded View………………………………….…...73
11. BOM List……………….………………….………….77
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….....………………….…..…….......7
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 ……………………….…….…….....28
6. PCB Layout ………………..…………………....….......35
6.1 Main Board……………..……………...…….…….......35
6.2 Power Board……...…………..…….…….……….......37
6.3 Led Board…………………………..……..……….......43