Indicator-Related Symptoms; Power-Related Symptoms - IBM thinkpad r30 Hardware Maintenance Manual

Indicator-Related Symptoms

Symptom/Error
Indicator incorrectly
remains off or on, but
system runs correctly.

Power-Related Symptoms

Symptom/Error
Power shuts down during
operation.
The system doesn't
power on.
The system doesn't
power off.
Battery can't be charged.
48
ThinkPad R30/R31 HMM
FRU/Action in Sequence
v Reseat Inveter/LED board
(13.3"/14.1")
v Inveter/LED board (13.3"/14.1")
v System board
v Coaxial cable
FRU/Action in Sequence
v Go to "Power systems checkout" on
page 34.
v AC Adapter
v Battery assembly
v Keyboard
v System board
v Go to "Power systems checkout" on
page 34.
v AC Adapter
v Battery assembly
v Keyboard
v System board
v Go to "Power systems checkout" on
page 34.
v Hold and press the power switch
for more than 4 seconds.
v Keyboard
v System board
v Go to "Power systems checkout" on
page 34.
v Battery assembly
v System board