Service Manuals, User Guides, Schematic Diagrams or docs for : AOC Monitor LM927U

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LM927U


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                                                                      AOC LM927U




     SERVICE MANUAL

                       19" LCD Monitor

                                LM927U




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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 RELIABILITY
FOR CHANGES, ERRORS OR OMISSIONS.




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                                                                                                                     AOC LM927U


                                                         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




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  4.4 Panel Specification....................................................................................................        11




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     4.4.1 Panel Feature.......................................................................................................      11
     4.4.2 Display Characteristics............................................................................................       11
     4.4.3 Optical Characteristics..........................................................................................         12




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     4.4.4 Parameter Guide Line For CCFL Inverter..................................................................                  12
5. Block Diagram.............................................................................................................        13
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  5.1 Monitor Exploded View...............................................................................................           13
  5.2 Software Flow Chart...................................................................................................         14
  5.3 Electrical Block Diagram.............................................................................................          16
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     5.3.1 Main Board...........................................................................................................     16
     5.3.2 Inverter/Power Board............................................................................................          17
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6. Schematic...................................................................................................................      19
  6.1 Main Board.................................................................................................................    19
  6.2 Power Board.............................................................................................................       25
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  6.3 Audio Board.............................................................................................................       28
7. PCB Layout...................................................................................................................     29
  7.1 Main Board.................................................................................................................    29
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  7.2 Power Board.............................................................................................................       30
  7.3 Audio Board.............................................................................................................       31
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  7.4 Key Board................................................................................................................      31
  7.5 USB Board................................................................................................................      31
  7.6 CNPC 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

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                                                       AOC LM927U

                        Revision List
Revision     Date                 Change Description
  A00      Jul-11-05               Original Revision




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                                                                                  AOC LM927U
MONITOR SPECIFICATIONS

                         Driving system                   TFT Color LCD

                         Size                             48.0cm(19.0")

                         Pixel pitch                      0.294mm( H )x 0.294mm( V )
   LCD Panel
                         Viewable angle                   170



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