Service Manual ASUS VH222S&VH222D
2
Index
Revision Lists………………………………….............................................................................. 3
Important Safety Notice…………………………………………………………………………………..4
1. Monitor Specification..............................……….........................................................................5
2. Operation Instruction…………………………………………………………………………………..6
2.1. General Instructions...........................…............................................................................ 6
2.2.Control Button…………….…..............……......................................................................... 6
2.3.OSD Menu…………….…...........................…......................................................................8
3. Input/Output Specification............……………..........................................................................11
3.1. Input Signal Connector............…………............................................................................11
3.2. Power Supply Requirements............................................................................................ 11
3.3. Factory Preset Display Modes…….................................................................................. 12
4. Block Diagram…..….....................………….............................................................................14
4.1.Software Flow Chat..........................................................................................14
42.Electircal Block Diagram.........................................................................................................16
5. Schematic Diagram……………………....…............................................................................ 18
5.1. Main Board……….............................................................................................................18
5.2. Power Board...…….......................................................................................................... 22
5.3. Key Board…………….......................................................................................................25
6. PCB Layout...………................................................................................................................26
6.1. Main Board……….............................................................................................................26
6.2. Power Board…................................................................................................................. 29
6.3. Key Board……………................................... ...................................................................30
7. Disassemble & Assemble SOP.……………….. ............................................................... …..31
8. ISP Instruction………..............................................................................................................44
9. DDC Instruction…………………………........... .......................................................................47
10. Color/White Balance Adjustment……………........................................................................ 56
11. Trouble Shooting……………………….................................................................................. 58
12. Exploded View…..……………………..... ......................................................................... .....64
13. BOM List………………………………….............................................................................. 65
14. Different Parts List……………………………………..…………………………………………87
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