IBM R31 - Manual (Page 51)

Keyboard/TrackPoint-Related
Symptoms
Symptom/Error FRU/Action in Sequence
Keyboard (one or more
keys) doesn’t work. v Go to “FRU tests” on page 54.
v Reseat keyboard cable.
v Keyboard
v System board
TrackPoint does not
work. v Go to “FRU tests” on page 54.
v Reseat keyboard cable.
v Keyboard
v System board
Indicator-Related Symptoms
Symptom/Error FRU/Action in Sequence
Indicator incorrectly
remains off or on, but
system runs correctly. v Reseat Inveter/LED board
(13.3 ″/14.1″)
v Inveter/LED board (13.3″/14.1″)
v System board
v Coaxial cable
Power-Related Symptoms
Symptom/Error FRU/Action in Sequence
Power shuts down during
operation. v Go to “Power systems checkout” on
page 36.
v AC Adapter
v Battery assembly
v Keyboard
v System board
The system doesn’t
power on. v Go to “Power systems checkout” on
page 36.
v AC Adapter
v Battery assembly
v Keyboard
v System board
The system doesn’t
power off. v Go to “Power systems checkout” on
page 36.
v Hold and press the power switch
for more than 4 seconds.
v Keyboard
v System board
MT 2656, 2657, 2676 45