R 9Lghr 3Duw - Compaq Evo Notebook N400c Series Maintenance And Service Manual

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 1R 9LGHR 3DUW 

No Video
Docking
Station
Standalone
or Docking
Station? No Video, Part 2.
Standalone
Internal or
external
display*?
Internal
External
Adjust
brightness.
Y
Video OK?
N
Replace one at a time. Test after each item:
1. Cable between notebook and computer display (if applicable)
Check for bent
2. Inverter board (if applicable)
pins on cable.
3. Display
4. System board
N
Video OK?
Y
Done
±
Go to * Note: To change from internal to
Section 2.7, external display, use the hotkey
combination.
Adjust
Video OK?
brightness.
N
A Depress lid
switch to ensure
operation.
Done Video OK?
N
Try Internal and
another external
display. video OK?
Y
Done
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Y
Done
Y
Done
N
Replace
system
board.