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
Summary of Contents for MT 2645
Page 2: ...January 2000 This manual supports ThinkPad 600X MT 2645 ThinkPad 600X MT 2646...
Page 44: ...FRU removals and replacements 1020 DIMM 39...
Page 45: ...FRU removals and replacements 1025 Modem card 40 ThinkPad 600X Hardware Maintenance Manual...
Page 46: ...FRU removals and replacements 1030 Battery pack 2 Unlock Lock 1 41...
Page 51: ...FRU removals and replacements 8 46 ThinkPad 600X Hardware Maintenance Manual...
Page 73: ...Locations Password pads 68 ThinkPad 600X Hardware Maintenance Manual...
Page 74: ...Parts list Parts list 69...