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2–16 Maintenance and Service Guide
Troubleshooting
Flowchart 2.6 - No Video, Part 1
A
N
Stand-alone
or docking
station?
No video.
Replace the following one at a time. Test after each replacement.
1. Cable between notebook and computer display (if applicable)
2. Inverter board (if applicable)
3. Display
4. System board
Internal or
external
display*?
Adjust
brightness.
Video OK? Done
Docking
station
Internal
Stand-alone
External
Adjust
brightness.
Video OK? Done
Y
Press lid
switch to ensure
operation.
Video OK?
Done
Y
N
Video OK?
Done
Done
N
Check for bent
pins on cable.
Try
another
display.
Internal and
external
video OK?
Replace
system
board.
YY
N
N
*To change from internal to
external display, use the hotkey
combination.
Y
Go to
Flowchart 2.7,
No Video, Part 2.