Service Manual AOCn941Splus
3
CONTENTS
1. LCD Specifications ................................................................................................................................ 4
1.1 Product Features .................................................................................................... 4
1.2 Factory preset modes ............................................................................................ 5
1.3 Introduction of new feature ..................................................................................... 5
1.4 VGA 15pin Connector ............................................................................................ 6
2. Operation instruction ............................................................................................................................. 7
2.1 Connection ............................................................................................................. 7
2.2 Control Buttons ...................................................................................................... 7
2.3 OSD User mode adjustment .................................................................................. 8
3. Panel Feature ....................................................................................................................................... 10
3.1 General Specifications ......................................................................................... 10
3.2 Electrical Absolute Ratings ................................................................................... 10
3.3 Electrical Characteristics ...................................................................................... 10
3.4 TFT LCD Module Block Diagram.......................................................................... 11
3.5 LCD module input terminal pin assignment .......................................................... 12
3.6 Optical Specifications ........................................................................................... 12
4. Disassembly SOP ................................................................................................................................ 13
4.1 appropriate tools .................................................................................................. 13
4.2 Disassembly SOP ................................................................................................ 14
5.Block Diagram ....................................................................................................................................... 18
5.1 LCD Block Diagram .............................................................................................. 18
5.2 MainBoard Block Diagram ................................................................................... 18
5.3 Power Board Block Diagram ................................................................................ 19
5.4 Software Flow Chart ............................................................................................. 20
6. Circuit Schematic ................................................................................................................................. 21
6.1 Main Board 1-715G3225-1 ................................................................................... 21
6.2 Power Board 715G2892-7 ................................................................................... 26
6.3 Inverter part---- ..................................................................................................... 27
6.4 Key Board 715G4007-K01 ................................................................................... 28
7.Explore Views ........................................................................................................................................ 29
8. PCB Layout ........................................................................................................................................... 30
8.1 MainBoard -- 715G3225-1 ................................................................................... 30
8.2 PowerBoard 715G2892-7 .................................................................................... 32
8.3 KeyBoard ---715G4007 ........................................................................................ 33
9. Maintenance Trouble treatment ......................................................................................................... 34
9.1 Maintainability Requirement ................................................................................. 34
9.2 Trouble Shooting .................................................................................................. 34
9.3 Software programming step ................................................................................. 38
9.4 Writing DDC program step ................................................................................... 43
9.5 Factory mode adjustment ..................................................................................... 45
10.BOM List .............................................................................................................................................. 47
10.1 Model：T99ANSNYWVA1NNJ .......................................................................... 47
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