Service Manuals, User Guides, Schematic Diagrams or docs for : Viewsonic Телевизор LCD Телевизор LCD Viewsonic N2750W-1E.1A N2750w-1E

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N2750w-1E


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                              N2750W(E) Service Manual
                                               TABLE OF CONTENTS
                                                                                                                            PAGE
1.    PRECAUTION AND NOTICES ------------------------------------------------------------------------------------- 1~2
      1.1. SAFETY PRECAUTIONS ---------------------------------------------------------------------------------------- 1
      1.2. PRODUCT SAFETY NOTICE ----------------------------------------------------------------------------------- 1
      1.3. SERVICE NOTES-------------------------------------------------------------------------------------------------- 1

2.    SERVICE TOOL & EQUIPMENT REQUIRED ---------------------------------------------------------- 2

3.    SPECIFICATIONS ----------------------------------------------------------------------------------------------------- 2~4
      3.1. PRODUCT SPECIFICATIONS------------------------------------------------------------------------------ 2
      3.2. FACTORY PRESET MODE TIMING CHART ---------------------------------------------------------- 3
      3.3. D-SUB CONNECTOR -------------------------------------------------------------------------------------------- 4

4.    EXPLODED VIEW AND PARTS LIST --------------------------------------------------------------------------- 5~6
      4.1. EXPLODED VIEW ------------------------------------------------------------------------------------------------ 5
      4.2. EXPLODED VIEW PARTS LIST -------------------------------------------------------------------------------- 6

5.    BLOCK DIAGRAM ---------------------------------------------------------------------------------------------------- 7

6.    SCHEMATIC DIAGRAM -------------------------------------------------------------------------------------------- 8~19
      6.1. DB-15 Input and YPbPr ----------------------------------------------------------------------------------------- 8
      6.2. DVI-D Interface --------------------------------------------------------------------------------------------------- 9
      6.3. VIDEO Input I/F -------------------------------------------------------------------------------------------------- 10
      6.4. VPC3230D & SCART_V ----------------------------------------------------------------------------------------- 11
      6.5. CPU_FLASH_SRAM --------------------------------------------------------------------------------------------- 12
      6.6. Memory_SDRAM64Mbit x2 ------------------------------------------------------------------------------------- 13
      6.7. MN203 -------------------------------------------------------------------------------------------------------------- 14
      6.8. LVDS and PANEL POWER ------------------------------------------------------------------------------------- 15
      6.9. AUDIO ------------------------------------------------------------------------------------------------------------- 16
      6.10. Power --------------------------------------------------------------------------------------------------------------- 17
      6.11. Output Debug Port ----------------------------------------------------------------------------------------------- 18
      6.12. Teletext ------------------------------------------------------------------------------------------------------------- 19

7.    WORKING THEOREM----------------------------------------------------------------------------------------------- 20~21

8.    WIRING DIAGRAM --------------------------------------------------------------------------------------------------- 22

9.    PCB LAYOUT ----------------------------------------------------------------------------------------------------------- 23~28
      9.1. MAIN PCB TOP VIEW ------------------------------------------------------------------------------------------- 23
      9.2. MAIN PCB BOTTOM VIEW ------------------------------------------------------------------------------------- 24
      9.3. KEYPAD PCB TOP VIEW --------------------------------------------------------------------------------------- 25
      9.4. KEYPAD PCB BOTTOM VIEW --------------------------------------------------------------------------------- 26
      9.5. IR PCB TOP VIEW------------------------------------------------------------------------------------------------ 27
      9.6. IR PCB BOTTOM VIEW ----------------------------------------------------------------------------------------- 28

10.   TROUBLE SHOOTING FLOW CHART ------------------------------------------------------------------------- 29~33
      10.1. NO LED/SCREEN DISPLAY AFTER AC POWER ON - MCU REGION ------------------------ 29
      10.2. NO DISPLAY AFTER AC POWER ON



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