AOC M20S651B, Service Manual, Page: 1 / 79

20
” LCD TV Color Monitor
AOC M20S651B
1
Service
Service
Service
Horizontal frequency
31.5 kHz to 48 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
R FOR TH
UNIT WHEN S
6.2 Power Board
………………………….....….......28
6.3 Key Board
….….........................................…….........29
6.4 Tuner Board
...………...…...................................30
6.5 Earphone board
……………………...……..………31
7. Block Diagram
..……..……................….......................32
7.1 Main Board...............
……..……...............................32
7.2 Power Board
…...……..….…...….…..........................33
8. Schematic
Diagram…….….….………………….......34
8.1 Main Board
……...…..……….………......................34
8.2 Power Board
...……………….……………………...46
8.3 Key Board
……………..…………..………………...49
8.4 Tuner Board
.....…..........……………........................50
8.5 IR Board
...…….........…………...............................54
9. Exploded View
…….........………..............…................55
10. BOM List
…………………… …….....…………………57
Table Of Contents.......…….…..............................…........1
Revision
List.…….….....................................……......2
Important Safety Notice.……..................……......3
1. Monitor Specification
..…............................………........4
2. Operating
Instructions……...……………….……….......5
2.1 The Use Of Remote
Control..…………..................5
2.2 Front Panel Control Knobs
.....................…...........7
2.3 OSD Operating
…………….…............……...............8
2.4 How To Connect
...………........................…............12
3. Input/Output Specification
............……………............14
3.1 Input Signal Connector
............………….................14
3.2 Factory Preset Display Modes
........………...............14
4. Mechanical Instructions
..………....……......................16
5. Repair Flow Chart
…….……………………..................20
6. PCB Layout
………...……….……………....….…….....26
6.1 Main Board
……...……………..……………....….......26