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Peripheral Device–Related Symptoms
Symptom / Error FRU / Action in Sequence
External display does
not work correctly.
1. See “External Display
Self-Test” in “Common
Devices Checkout” section.
Printer problems. 1. Run Printer Self-test.
2. Parallel Port Device
3. Cable
4. System Board
Serial or parallel port
device problems.
1. Device
2. Device Cable
3. System Board
Infrared–Related Symptoms
Symptom / Error FRU / Action in Sequence
Unable to
communicate using
the Infrared (IR) Port.
1. Make sure the setup for the
IR is correct.
2. Make sure there are no
fluorescent lights near the
computer.
The computer may receive
optical interference from the
fluorescent light.
3. Reseat the IR unit.
4. Run the advanced diagnostic
test. If an error occurs and a
FRU code is displayed,
replace the parts shown by
the FRU code.
Other Symptoms
Note
If you cannot find a symptom or error in this list and
the problem remains, see “Undetermined Problems”
on page 116.
Symptom / Error FRU / Action in Sequence
Errors occur only
when Port Replicator
is used.
See “Port Replicator Checkout”
in the “Common Devices
Checkout” section.
PCMCIA slot pin is
damaged.
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. FRU replacement should only be
considered when a recurring problem exists.
When analyzing the intermittent problem, do the following:
ThinkPad 365X, 365XD (2625)
115