AOC i2252VWH, Service Manual

Page: 3 / 68

Service Manual AOCi2252VW
3
CONTENTS
1. LCD Specifications ................................................................................................................................................ 4
1.1 Product Features ............................................................................................................................................... 4
1.2 Factory preset modes ....................................................................................................................................... 5
1.3 New Features ................................................................................................................................................... 5
1.4 VGA 15pin Connector ..................................................................................................................................... 6
1.5 DVI Connector ................................................................................................................................................. 6
1.6 HDMI interface ................................................................................................................................................ 7
2. Operation instruction .............................................................................................................................................. 8
2.1 Connection ....................................................................................................................................................... 8
2.2 Control Buttons ................................................................................................................................................ 8
2.3 OSD User mode adjustment ............................................................................................................................. 9
2.4 OSD Locked................................................................................................................................................... 13
3. Panel Feature ........................................................................................................................................................ 14
3.1 General Specifications ................................................................................................................................... 14
3.2 Electrical Absolute Ratings ............................................................................................................................ 14
3.3 Electrical Characteristics................................................................................................................................ 15
3.4 TFT LCD Module Block Diagram ................................................................................................................. 15
3.5 LCD module input terminal pin assignment .................................................................................................. 16
3.6 LED connector Interface ................................................................................................................................ 16
4.Block Diagram ...................................................................................................................................................... 17
4.1 LCD Block Diagram ...................................................................................................................................... 17
4.2 MainBoard Block Diagram ............................................................................................................................ 17
4.3 Power Board Block Diagram ......................................................................................................................... 18
4.4 Software Flow Chart ...................................................................................................................................... 19
5. Circuit Schematic ................................................................................................................................................. 20
5.1 Main Board 715G4641M01 ........................................................................................................................... 20
5.2 Power Board 715G4750-P02 ......................................................................................................................... 27
5.3 Converter Board 715G4013-P02 ................................................................................................................... 28
5.4 Key Board 715G4851k .................................................................................................................................. 29
6. Monitor exploded view ........................................................................................................................................ 30
7. PCB Layout .......................................................................................................................................................... 31
7.1 MainBoard 715G4641-M01 ........................................................................................................................... 31
7.2 PowerBoard 715G4750-P02 .......................................................................................................................... 33
7.3 Converter Board 1-715G4013P02 ................................................................................................................. 35
7.4 KeyBoard715G4851 ...................................................................................................................................... 36
8. Maintenance ......................................................................................................................................................... 37
8.1 Maintainability Requirement ......................................................................................................................... 37
8.2 Disassembly SOP ........................................................................................................................................... 37
8.3 Trouble Shooting ............................................................................................................................................ 40
8.4 Software update step ...................................................................................................................................... 45
8.5 Re-Writing DDC program step ...................................................................................................................... 51
8.6 Factory mode adjustment ............................................................................................................................... 54
9.BOM List............................................................................................................................................................... 56
9.1 Model
：
HIBGNZ6BAXK2DNJ ................................................................................................................... 56