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Keyboard- or TrackPoint-Related Symptoms
Symptom / Error
The keyboard (one or more
keys) does not work.
The TrackPoint does not
work.
The pointer moves
automatically or does not
work correctly.
LCD-Related Symptoms
Symptom / Error
LCD backlight not working.
LCD too dark.
LCD brightness cannot be
adjusted.
LCD contrast cannot be
adjusted.
LCD screen unreadable.
Non-readable characters.
Screen abnormal.
Wrong color displayed.
LCD has extra horizontal or
vertical lines displayed.
LCD lid is loose.
24
IBM WorkPad z50, Mobile Companion 24
FRU / Action in Sequence
1.
On the Windows
Taskbar, check that
Caps Lock or Num Lock
are not enabled.
2.
Reseat the keyboard cable
on the mainboard.
3.
Keyboard
4.
Mainboard
1.
Check the "TrackPoint"
settings in the Control
Panel.
2.
Reseat the keyboard cable
on the mainboard.
3.
Go to "TrackPoint
Checkout" on page15.
4.
Keyboard
5.
Mainboard
See "TrackPoint Checkout"
on page 15.
FRU / Action in Sequence
1.
Open the "Display
Properties" window in
the Control Panel.
Check that the auto dim
setting is not enabled
under the "Backlight"
tab.
2.
Reseat the LCD cable and
connectors.
3.
LCD assembly
4.
Inverter assembly
5.
Mainboard
1.
Reseat the LCD cable
and connectors.
2.
LCD assembly
3.
Inverter assembly
4.
Mainboard
LCD assembly
1.
Hinge screws
2.
Hinge group
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