Service Manuals, User Guides, Schematic Diagrams or docs for : AOC Monitor LM525A
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AOC LM525A
SERVICE MANUAL
15" LCD Monitor
LM525A
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.
Page 1 of 49
AOC LM525A
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 Factory Preset Display Modes............................................................................................ 10
4.3 Power Supply Requirements............................................................................................. 10
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........................................................................ 12
5. Block Diagram................................................................................................................... 13
5.1 Monitor Exploded View..................................................................................................... 13
5.2 Software Flow Chart......................................................................................................... 14
5.3 Electrical Block Diagram................................................................................................... 16
5.3.1 Main Board.............................................................................................................. 16
5.3.2 Inverter/Power Board.................................................................................................. 17
6. Schematic......................................................................................................................... 18
6.1 Main Board.................................................................................................................... 18
6.2 Power Board.................................................................................................................. 24
6.3 Audio Board................................................................................................................... 26
7. PCB Layout...................................................................................................................... 27
7.1 Main Board.................................................................................................................... 27
7.2 Power Board.................................................................................................................. 28
7.3 Audio Board................................................................................................................... 28
7.4 Keypad Board................................................................................................................ 28
8. Maintainability................................................................................................................... 29
8.1 Equipments and Tools Requirement.................................................................................... 29
8.2 Trouble Shooting............................................................................................................. 30
8.2.1 Main Board............................................................................................................... 30
8.2.2 Power /Inverter/Board................................................................................................. 33
8.2.3 Keypad Board........................................................................................................... 35
9. White-Balance, Luminance adjustment................................................................................. 36
10. EDID Content................................................................................................................... 37
11. BOM LIST......................................................................................................................... 38
Page 2 of 49
AOC LM525A
Revision List
Revision Date Change Description
A00 Oct-29-05 Original Revision
Page 3 of 49
AOC LM525A
1. MONITOR SPECIFICATIONS
Driving system TFT LCD
Size 38.1cm(15.0")
Type HSD150MX15HSD
Pixel pitch 0.297mm(H) x 0.297mm(V)
Viewing angle 160(H) 115(V) (CR>5)
LCD Panel
Luminance 250cd/ m2
Contrast Ratio 500:1
Response time 25ms (typ)
Display colors 16 million (6 bit + FRC)
R G B Analog 0.7Vp-p
H/V separate TTL level
Input signals H/V composite TTL level
Horizontal frequency 30kHz◦ Jabse Service Manual Search 2023 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo