Service Manual AOC2241VG
3
CONTENTS
1. LCD Specifications -------------------------------------------------------------------------------------------------------- 4
1.1 Product Features --------------------------------------------------------------------------------------------------------- 4
1.2 Factory Preset Timing -------------------------------------------------------------------------------------------------- 5
2. Operation Instruction ----------------------------------------------------------------------------------------------------- 6
2.1 Control Button ------------------------------------------------------------------------------------------------------------ 6
2.2 OSD Menu Adjusting ---------------------------------------------------------------------------------------------------- 7
2.3 OSD Lock Function ------------------------------------------------------------------------------------------------------ 10
3. Interface description ----------------------------------------- ------------------------------------------------------------- 11
3.1 VGA interface ------------------------------------------------------------------------------------------------------------- 11
3.2 DVI interface -------------------------------------------------------------------------------------------------------------- 11
3.3 USB interface ------------------------------------------------------------------------------------------------------------- 12
4. Panel Feature ----------------------------------------- ---------------------------------------------------------------------- 13
4.1 General Specifications -------------------------------------------------------------------------------------------------- 13
4.2 Electrical Absolute Ratings -------------------------------------------------------------------------------------------- 13
4.3 Electrical Characteristics ----------------------------------------------------------------------------------------------- 13
4.4 Optical Characteristics -------------------------------------------------------------------------------------------------- 14
4.5 TFT LCD Module Block Diagram ------------------------------------------------------------------------------------- 15
4.6 LCD module input terminal pin assignment------------------------------------------------------------------------ 15
5. Block diagram --------------------------------------------------------------------------------------------------------------- 16
5.1 LCD Block diagram ------------------------------------------------------------------------------------------------------ 16
5.2 Main board Block diagram --------------------------------------------------------------------------------------------- 16
5.3 Power board Block diagram ------------------------------------------------------------------------------------------- 17
5.4 LCD software flow chart ------------------------------------------------------------------------------------------------ 18
6. Circuit Schematic ---------------------------------------------------------------------------------------------------------- 19
6.1 Main board --------------------------------------------------------------------------------------------------------------- 19
6.2 Power board -------------------------------------------------------------------------------------------------------------- 25
6.3 Invweter part -------------------------------------------------------------------------------------------------------------- 26
6.3 Key board ------------------------------------------------------------------------------------------------------------------ 27
7. Monitor exploded view ---------------------------------------------------------------------------------------------------- 28
8. PCB Layout ------------------------------------------------------------------------------------------------------------------ 31
8.1 Main board ---------------------------------------------------------------------------------------------------------------- 31
8.2 Power board -------------------------------------------------------------------------------------------------------------- 33
8.3 Key board ------------------------------------------------------------------------------------------------------------------ 34
9. Maintainability ---------------------------------------------------------------------------------------------------------------- 35
9.1 Maintainability Requirement ------------------------------------------------------------------------------------------- 35
9.2 Trouble Shooting --------------------------------------------------------------------------------------------------------- 35
9.3 Roft re-wirting step ------------------------------------------------------------------------------------------------------- 39
9.4 DDC re-wirting step------------------------------------------------------------------------------------------------------ 43
9.5 Factory mode OSD ------------------------------------------------------------------------------------------------------ 45
10. BOM List ---------------------------------------------------------------------------------------------------------------------- 47
10.1
TC9GNTNBWVK2HNJ BOM ------------------------------------------------------------------------------------------ 47
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