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.

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.

LCD-Related Symptoms

Symptom / Error

FRU / Action in Sequence

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.

1.Open the “Display Properties” window in the Control Panel. Check that the auto dim setting is not enabled under the “B acklight” 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

24 IBM WorkPad z50, Mobile Companion 24

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IBM s37l-2095-00 manual Keyboard- or TrackPoint-Related Symptoms, Symptom / Error FRU / Action in Sequence