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AOC LM965




SERVICE MANUAL

19" LCD MONITOR




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LM965

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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 RE LIABILITY FOR
CHANGES, ERRORS OR OMISSIONS.




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AOC LM965
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 Front Panel Control......................................................................................................... 6
3.3 Adjusting the Picture........................................................................................................ 7
4. Input/Output Specification................................................................................................... 9
4.1 Input Signal Connector..................................................................................................... 9
4.2 Power Supply Requirements............................................................................................. 9




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4.3 Factory Preset Display Modes............................................................................................ 10




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4.4 Panel Specification.......................................................................................................... 11
4.4.1 General Description................................................................................................... 11
4.4.2 Display Characteristics............................................................................................... 11
4.4.3 Optical Characteristics................................................................................................ 12




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4.4.4 Electrical Characteristics............................................................................................. 13
5. Block Diagram................................................................................................................... 14
5.1 Monitor Exploded View..................................................................................................... 14
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5.2 Software Flow Chart......................................................................................................... 15
5.3 Electrical Block Diagram................................................................................................... 17
5.3.1 Main Board............................................................................................................... 17
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5.3.2 Inverter/Power Board.................................................................................................. 18
6. Schematic......................................................................................................................... 19
6.1 Main Board.................................................................................................................... 19
6.2 Power Board.................................................................................................................. 25
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6.3 Audio Board.................................................................................................................. 29
7. PCB Layout...................................................................................................................... 30
7.1 Main Board.................................................................................................................... 30
7.2 Power Board.................................................................................................................. 31
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7.3 Audio Board................................................................................................................... 32
7.4 Key Board..................................................................................................................... 32
8. Maintainability................................................................................................................... 33
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8.1 Equipments and Tools Requirement.................................................................................... 33
8.2 Trouble Shooting............................................................................................................. 34
8.2.1 Main Board............................................................................................................... 34
8.2.2 Power /Inverter Board................................................................................................. 37
8.2.3 Keypad Board........................................................................................................... 39
9. White-Balance, Luminance adjustment................................................................................. 40
10. EDID Content................................................................................................................... 42
11. BOM LIST........................................................................................................................ 43




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AOC LM965

Revision List
Version Date Revision History TPV Model Name
A00 Jan-18-06 Initial Release T980KA4DB4AOA




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3
AOC LM965
1. Monitor Specifications
Items Description

Driving system TFT Color LCD

Type M190EN04

Size 48.0cm(19.0")
LCD Panel
Pixel pitch 0.294mm (H) x 0.294mm (V)

Viewable angle 140(H) 135(V)

Response time 8 ms




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Sync. Type H/V TTL

Input Signal 15Pin Analog
Input
H-Frequency 30kHz