User Guide

8965 N/B Maintenance
8965 N/B Maintenance
104
Replace faulty
LCD
1. Confirm LCD is good and check the cable
are connected properly.
2. Try another known good LCD
Display
OK?
Remove all the I/O device & cable from
motherboard except extended LCD.
Display
OK?
Connect the I/O device & cable
to the M/B one at a time to find
out which part is causing the
problem.
Yes
No
Yes
No
Board-level
Troubleshooting
Replace
Motherboard
One of the following parts on the mother-board may be
defective, use an oscilloscope to check the following signal or
replace the parts one at a time and test after each replacement.
Parts: Signals:
+3V
DVMAIN
PANEL_ID[0:2]
TXOUT[0:2]+
TXOUT[0:2]-
TXCLK+
TXCLK-
ENABKL
BLADJ
U17
U703
U709
J1001
J4
L702
L704
L705
L706
Q8
Q9
L20
D21
There is no display or picture abnormal on LCD or monitor.
8.4 LCD No Display or Picture Abnormal (1)
VGA Controller Failure
MiTac Secret
Confidential Document