HP Compaq nx7000 Maintenance And Service Manual page 54

Flowchart 2.6—No Video, Part 1
No video.
Stand-alone
or port
replicator?
Stand-alone
Internal or
external
display*?
External
Adjust
brightness.
Video OK?
N
Check for bent
pins on cable.
Video OK?
Y
Done
Maintenance and Service Guide
Port
Replicator
Go to
Flowchart 2.7,
No Video, Part 2.
Adjust
brightness.
Internal
A
Y
Done
Replace the following one at a time. Test after each replacement.
1. Cable between notebook and notebook display (if applicable)
2. Inverter board (if applicable)
3. Display
4. VGA board
N
Try
another
display.
*NOTE: To change from internal to
external display, use the hotkey
combination.
Video OK?
N
Press lid
switch to ensure
operation.
Video OK?
N
5. System board
Internal and
external
video OK?
Y
Done
Troubleshooting
Y
Done
Y
Done
N
Replace
system
board.
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