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9-7 External Monitor No Display or Color Abnormal<br />
The CRT monitor shows nothing or abnormal color, but it is OK for LCD.<br />
VGA Controller Failure<br />
1. Confirm External monitor is good and check the<br />
VGA cable is connected properly.<br />
2. Make sure the docking module VGA port is good.<br />
3. Try another known good monitor or LCD module.<br />
Display<br />
ok ?<br />
No<br />
Replace the f<strong>au</strong>lty<br />
external monitor.<br />
Remove all I/O device & cable from motherboard<br />
except LCD panel or extended monitor.<br />
Display<br />
ok?<br />
No<br />
Replace<br />
Motherboard<br />
Board-level<br />
Troubleshooting<br />
Check if<br />
U533, J504 are cold<br />
solder?<br />
No<br />
Yes<br />
Yes<br />
Yes<br />
Connect the I/O device & cable<br />
to the M/B one at a <strong>tim</strong>e to find<br />
out which part is c<strong>au</strong>sing the<br />
problem<br />
Re-soldering<br />
67<br />
Check the following parts:<br />
Parts:<br />
Signal:
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