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Other Symptoms
Note: If you cannot find a symptom or error in this list
and the problem remains, see “Undetermined Problems”
on page 227.
Symptom/Error FRU/Action
Stylus pen or digitizer does
not work correctly.
1. Go to “Pen and
Digitizer Checkout
(360P, 360PE, 750P)”
on page 205.
Errors occur only when Port
Replicator is used.
1. See “Port Replicator
Checkout” in
“Common Devices
Checkout” section.
PCMCIA slot pin is
damaged.
1. PCMCIA 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. FRUs replacement should only be
considered when a recurring problems exits.
When analyzing the 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.
226 IBM Mobile Systems HMM