Service Manuals, User Guides, Schematic Diagrams or docs for : AOC Monitor LM520i

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LM520i


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      SERVICE MANUAL
                    LM520i Monitor
                 (With CPTXG08 PANEL)




    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 OFTHIS INFORMATION AFTER THE DATE OF
PUBLICATION AND DISCLAIMS RELIABILITY FOR CHANGES, ERRORS OR OMISSIONS.

                      MANUFACTURE DATA Feb-22-04
                                                      TABLE OF CONTENTS
PAGE
  1. SPECIFICATIONS ....................................................................................................         3
     1-1  GENERAL SPECIFICATIONS ....................................................................                            3
     1-2 LCD MONITOR DESCRIPTION ..................................................................                              4
     1-3  INTERFACE CONNECTOR ........................................................................                           4

   2.    PRECAUTION AND NOTICES ................................................................................                  5
         2-1 ASSEMBLY PRECAUTION .........................................................................                        5
         2-2 OPERATIONG PRECAUTION .....................................................................                          5
         2-3 STORAGE PRECAUTION ...........................................................................                       5
         2-4 HIGH VOLTAGE WARNING .......................................................................                         5

   3.    OPERATING INSTRUCTIONS ................................................................................                  6

   4.    ADJUSTMENT ..........................................................................................................    7
         4-1 ADJUSTMENT CONDITIONS AND PRECAUTIONS ...............................                                                7
         4-2 ADJUSTMENTS METHOD .& DESCRIPTION...........................................                                         7
         4-3 FRONT PANEL CONTROL KNOBS ............................................................                               8

   5.    CIRCUIT & SOFTWARE DESCRIPTION ................                                                                          9
         5-1 THE DIFFERENT BETWEEN EACH PANEL ..................................                                                  9
         5-2 SPECIAL FUNCTION WITH PRESS KEY ......................................                                              10
         5-3  SIMPLE INTRODUCTION ABOUT LM500 CHIPSET ........................                                                   11
         5-4  SOFTWARE FLOW-CHART                                                                                                13

   6.    TROUBLE SHOOTING.............................................................................................           15
           A).MAIN BOARD TROUBLE SHOOTING CHART .. ....................................                                          15
         B). INVERTER - MODULE TROUBLE SHOOTING CHART ...........................                                                19

   7.    MECHANICAL OF CABINET FRONT DIS-ASSEMBLY......................................                                          21

   8.    PARTS LISTING .....................................................................................................     22

   9.    SCHEMATIC................................................................................................               34

   10. PCB LAYOUT ...................................................................................................            37




                                                                        2
                                        1. SPECIFICATIONS FOR LCD MONITOR

1-1        General specifications
      1.    LCD-PANEL :
            Active display area         15 inches or 15.1 inches diagonal
            Pixel pitch                 0.297 mm x 0.297 mm
            Pixel format                1024 x 768 RGB vertical stripe arrangement

      2.    Display Color :
            6-bit, 262144 colors or 8-bit, 16.7 million colors

      3.    External Controls :
            a).Power On/Off, Auto key, Rotary-knob ( for shuttle)
            b).Power On/Off, Auto key, Left key, Right key ( for 4-key )
            OSD menu Controls
             Contrast, Brightness, Focus, Clock,H-position, V-position, Language, Recall-C2(warm color), Recall-C1 (Cool
            color), Reset, Exit-OSD, Red, Green, Blue

      4.    Input Video Signal :
            Analog-signal 0.7Vpp
            Video signal termination impedance 75 OHM

      5.    Scanning Frequencies :
            Horizontal:    29 KHz - 63 KHz
            Vertical:      55 Hz 



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