Lenovo ThinkPad 600X Hardware Maintenance Manual: ThinkPad 600X - Page 35

Power-related symptoms, Other symptoms, Intermittent problems, Undetermined problems

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Symptom-to-FRU error messages Power-related symptoms Symptom or error FRU or action, in sequence Power shuts down during operation. 1. Go to "Power system checkout" on page 9. 2. Battery pack. 3. Remove the battery pack and let it cool for 2 hours. 4. System board. 5. Check the power outlet. The system does not power off. (See "Reset switch" on page 3.) 1. Press the power shutdown switch. 2. System board. Other symptoms Symptom or error Errors occur only when the port replicator is used. PC Card slot pin is damaged. FRU or action, in sequence See "Port replicator checkout" on page 12. 1. PC Card slots assembly Note: If you cannot find a symptom or an error in this list and the problem remains, see "Undetermined problems." Intermittent problems Intermittent system hang problems can be caused by a variety of reasons that have nothing to do with a hardware defect, such as cosmic radiation, electrostatic discharge, or software errors. FRU replacement should be considered only when a problem recurs. When analyzing an intermittent problem, do the following: 1. Run the advanced diagnostic test for the system board in loop mode at least 10 times. 2. If no error is detected, do not replace any FRUs. 3. If any error is detected, replace the FRU shown by the FRU code. Rerun the test to verify that no more errors exist. Undetermined problems You are here because the diagnostic tests did not identify which adapter or device failed, installed devices are incorrect, a short circuit is suspected, or the system is inoperative. Follow these procedures to isolate the failing FRU (do not isolate nondefective FRUs). 31

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Symptom-to-FRU error messages
Power-related symptoms
Symptom or error
FRU or action, in
sequence
Power shuts down during
operation.
1.
Go to “Power system
checkout” on page
9.
2.
Battery pack.
3.
Remove the battery
pack and let it cool for
2 hours.
4.
System board.
5.
Check the power
outlet.
The system does not power
off.
(See “Reset switch” on
page 3.)
1.
Press the power
shutdown switch.
2.
System board.
Other symptoms
Note:
If you cannot find a symptom or an error in this list
and the problem remains, see “Undetermined
problems.”
Symptom or error
FRU or action, in
sequence
Errors occur only when the
port replicator is used.
See “Port replicator
checkout” on page
12.
PC Card slot pin is
damaged.
1.
PC Card slots
assembly
Intermittent problems
Intermittent system hang problems can be caused by a
variety of reasons that have nothing to do with a hardware
defect, such as cosmic radiation, electrostatic discharge, or
software errors.
FRU replacement should be considered
only when a problem recurs.
When analyzing an intermittent problem, do the following:
1.
Run the advanced diagnostic test for the system
board in loop mode
at least 10 times
.
2.
If no error is detected, do
not
replace any FRUs.
3.
If any error is detected, replace the FRU shown by
the FRU code.
Rerun the test to verify that no more
errors exist.
Undetermined problems
You are here because the diagnostic tests did not identify
which adapter or device failed, installed devices are
incorrect, a short circuit is suspected, or the system is
inoperative.
Follow these procedures to isolate the failing
FRU (do not isolate nondefective FRUs).
31