Lenovo ThinkPad S31 ThinkPad S30, S31 Hardware Maintenance Manual (October 200 - Page 27

Keyboard-Related Symptoms, Indicator-Related Symptoms, Power-Related Symptoms, PC Card (PCMCIA)-

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Keyboard-Related Symptoms Symptom/Error Keyboard (one or more keys) doesn't work. FRU/Action in Sequence 1. Reseat the keyboard cable. 2. Keyboard 3. System board Indicator-Related Symptoms Symptom/Error Indicator incorrectly remains off or on, but system runs correctly. FRU/Action in Sequence 1. Reseat the keyboard connector. 2. Reseat the LCD-to-system-board connector. 3. System board Power-Related Symptoms Symptom/Error FRU/Action in Sequence Power shuts down during 1. Battery operation. 2. AC Adapter 3. System board The system will not power on. 1. Battery ASM 2. AC Adapter 3. System board The system will not power off. System board Battery can't be charged. 1. Battery 2. System board PC Card (PCMCIA)-Related Symptoms Symptom/Error FRU/Action in Sequence System cannot detect the 1. PC Card (PCMCIA) slots PC Card (PCMCIA) assembly 2. System board CompactFlash Card-Related Symptoms Symptom/Error FRU/Action in Sequence System cannot detect the System board CompactFlash Card ThinkPad s30, s31 23

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Keyboard-Related Symptoms
Symptom/Error
FRU/Action in Sequence
Keyboard (one or more
keys) doesn
’
t work.
1.
Reseat the keyboard cable.
2.
Keyboard
3.
System board
Indicator-Related Symptoms
Symptom/Error
FRU/Action in Sequence
Indicator incorrectly
remains off or on, but
system runs correctly.
1.
Reseat the keyboard connector.
2.
Reseat the LCD-to-system-board
connector.
3.
System board
Power-Related Symptoms
Symptom/Error
FRU/Action in Sequence
Power shuts down during
operation.
1.
Battery
2.
AC Adapter
3.
System board
The system will not
power on.
1.
Battery ASM
2.
AC Adapter
3.
System board
The system will not
power off.
System board
Battery can
’
t be charged.
1.
Battery
2.
System board
PC Card (PCMCIA)-Related Symptoms
Symptom/Error
FRU/Action in Sequence
System cannot detect the
PC Card (PCMCIA)
1.
PC Card (PCMCIA) slots
assembly
2.
System board
CompactFlash Card-Related Symptoms
Symptom/Error
FRU/Action in Sequence
System cannot detect the
CompactFlash Card
System board
ThinkPad s30, s31
23