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AOC 196V
SERVICE MANUAL
19" LCD Monitor
196V
THESE DOCUMENTS ARE FOR REPAIR SERVICE INFORMATION ONLY. EVERY REASONABLE EFFORT
HAS BEEN MADE TO ENSURE THE ACCURACY OF THIS MANUAL; WE CANNOT GUARANTEE THE
ACCURACY OF THIS INFORMATION AFTER THE DATE OF PUBLICATION AND DISCLAIMS RELIABILITY FOR
CHANGES, ERRORS OR OMISSIONS.
1
AOC 196V
Table of Content
Revision List......................................................................................................................... 3
1. Monitor Specifications........................................................................................................ 4
2. LCD Monitor Description..................................................................................................... 5
3. Operating Instructions........................................................................................................ 6
3.1 General Instructions......................................................................................................... 6
3.2 Control Buttons............................................................................................................... 6
3.3 Adjusting the Picture........................................................................................................ 7
4. Input/Output Specification................................................................................................... 9
4.1 Input Signal Connector..................................................................................................... 9
4.2 Factory Preset Display Modes............................................................................................ 10
4.3 Power Supply Requirements............................................................................................. 11
4.4 Panel Specification.......................................................................................................... 11
4.4.1 Panel Feature........................................................................................................... 11
4.4.2 Display Characteristics............................................................................................... 11
4.4.3 Optical Characteristics................................................................................................ 12
4.4.4 Parameter Guide Line For CCFL Inverter........................................................................ 13
5. Block Diagram................................................................................................................... 14
5.1 Monitor Exploded View..................................................................................................... 14
5.2 Software Flow Chart......................................................................................................... 15
5.3 Electrical Block Diagram................................................................................................... 17
5.3.1 Main Board............................................................................................................... 17
5.3.2 Inverter/Power Board.................................................................................................. 18
6. Schematic......................................................................................................................... 19
6.1 Main Board.................................................................................................................... 19
6.2 Power Board.................................................................................................................. 25
6.3 Audio Board.................................................................................................................. 28
7. PCB Layout...................................................................................................................... 30
7.1 Main Board.................................................................................................................... 30
7.2 Power Board.................................................................................................................. 31
7.3 Audio Board................................................................................................................... 31
7.4 Key Board..................................................................................................................... 31
8. Maintainability................................................................................................................... 32
8.1 Equipments and Tools Requirement.................................................................................... 32
8.2 Trouble Shooting............................................................................................................. 33
8.2.1 Main Board............................................................................................................... 33
8.2.2 Power /Inverter Board................................................................................................. 36
8.2.3 Keypad Board........................................................................................................... 38
9. White-Balance, Luminance adjustment................................................................................. 39
10. EDID Content................................................................................................................... 40
11. BOM LIST........................................................................................................................ 41
2
AOC 196V
Revision List
Revision Date TPV Name Change Description
A00 Nov-08-05 T980KH2HD4A1A Original Revision
3
AOC 196V
1.MONITOR SPECIFICATIONS
Driving system TFT Color LCD
Size 48.0cm(19.0")
LCD Panel Pixel pitch 0.294mm( H )x 0.294mm( V )
Viewable angle 140