Service Manual

AOCe941Series

 

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 ------------------------------------------------------------------------------------------------------------

7

3. Interface description ----------------------------------------- ---------------------------------------------------------------------

8

3.1

VGA interface -------------------------------------------------------------------------------------------------------------------

8

3.2

DVI interface ------------------------------------------------------------------------------------------------------------------

8

3.2

USB+Audio in port -------------------------------------------------------------------------------------------------------------

9

4. Panel Feature ----------------------------------------- -----------------------------------------------------------------------------

10

4.1

General Specifications --------------------------------------------------------------------------------------------------------

10

4.2

Electrical Absolute Ratings --------------------------------------------------------------------------------------------------

10

4.3

Electrical Characteristics -----------------------------------------------------------------------------------------------------

10

4.4

LCD Module Block Diagram -------------------------------------------------------------------------------------------------

11

4.5

LCD module input terminal pin assignment------------------------------------------------------------------------------

11

4.6

LED Connector -----------------------------------------------------------------------------------------------------------------

12

4.7

Optical Specifications --------------------------------------------------------------------------------------------------------

12

5. Block diagram------------------------------------------------------------------------------------------------------------------------------

13

5.1 LCD Block diagram --------------------------------------------------------------------------------------------------------------------

13

5.2 Main board 12 Block diagram ----------------------------------------------------------------------------------------------------

13

5.3 Power board Block diagram ---------------------------------------------------------------------------------------------------------

14

5.4 LCD software flow chart --------------------------------------------------------------------------------------------------------------

15

6. Circuit Schematic -----------------------------------------------------------------------------------------------------------------

16

6.1

Main board 1 --------------------------------------------------------------------------------------------------------------------

16

6.2

Main board 2 --------------------------------------------------------------------------------------------------------------------

22

6.3

Power board---------------------------------------------------------------------------------------------------------------------

27

6.4

Converter board ----------------------------------------------------------------------------------------------------------------

28

6.5 Audio part ------------------------------------------------------------------------------------------------------------------------

29

6.6

Key board ------------------------------------------------------------------------------------------------------------------------

30

7. Monitor exploded view ----------------------------------------------------------------------------------------------------------

31

8. PCB Layout -------------------------------------------------------------------------------------------------------------------------

34

8.1

Main board 12----------------------------------------------------------------------------------------------------------------

34

8.2

Power board---------------------------------------------------------------------------------------------------------------------

38

8.3

Key board ------------------------------------------------------------------------------------------------------------------------

39

9. Maintainability -------------------------------------------------------------------------------------------------------------------------

40

9.1

Maintainability Requirement -------------------------------------------------------------------------------------------------

40

9.2

Trouble Shooting ---------------------------------------------------------------------------------------------------------------

40

9.3

Factory mode OSD ------------------------------------------------------------------------------------------------------------

44

9.4

DDC re-wirting step------------------------------------------------------------------------------------------------------------

45

10. BOM List ---------------------------------------------------------------------------------------------------------------------------

48

10.1 e941VA-T995NTNBWVK2PNJ BOM ------------------------------------------------------------------------------------

48

10.2 e941SA-T995NSNCWVA1UNJ BOM -----------------------------------------------------------------------------------

61

10.3 e941S-- T9A2NS2DWVA4QNE BOM -----------------------------------------------------------------------------------

73

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AOC E941VA, E941SA service manual Contents