IBM 1400 (2611) User Manual
Indicator-Related Symptoms
Symptom/Error
FRU/Action in Sequence
Indicator incorrectly
remains off or on, but
system runs cor-
rectly.
remains off or on, but
system runs cor-
rectly.
Reconnect the indicator board
connector.
connector.
Indicator board
Power-Related Symptoms
Symptom/Error
FRU/Action in Sequence
Power shuts down
during operation.
during operation.
Go to “Power Systems
Check” on page 111.
Check” on page 111.
AC Adapter
Battery pack
Audio PCB
DC/DC charger
System board
The system doesn't
power on.
power on.
Go to “Power Systems
Check” on page 111.
Check” on page 111.
AC Adapter
DC/DC charger
System board
The system doesn't
power off.
power off.
Go to “Power Systems
Check” on page 111.
Check” on page 111.
Hold and press the power
switch for more than 4
seconds.
switch for more than 4
seconds.
DC/DC charger
System board
Battery can't be
charged.
charged.
Go to “Power Systems
Check” on page 111.
Check” on page 111.
Battery pack
DC/DC charger
System board
Memory-Related Symptoms
Symptom/Error
FRU/Action in Sequence
Memory count (size)
appears different
from the actual size.
appears different
from the actual size.
Go to “Memory Check” on
page 113.
page 113.
Enter BIOS Utility and
execute "Load Setup Default
Settings"; then reboot the
system.
execute "Load Setup Default
Settings"; then reboot the
system.
DIMM
System board
128
ThinkPad i Series 1400 HMM