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Symptom/Error
Abnormal
screen
Uneven
color on the
screen
Spot on the
screen
The computer
has an
intermittent
problem when
you use it on the
overhead
projector.
The remote
control does not
work.
338
IBM Mobile Systems HMM
FRU/Action
1. Check that the white film on the
LCD cover is clean. Gently
wipe the film with a dry, soft
cloth, such as a lens cleaner.
2. LCD Cover
3. Diagnose the LCD assembly by
following "LCD Related
Symptoms" on page 336.
Note: The customer may be
responsible for repair costs if the LCD
cover was damaged due to misuse,
excessive force, scratch, or liquid
spilled by the customer.
Problem such as high environmental
temperature might be the cause.
Use the stand supplied with the
computer.
1. Check that two AAA alkaline
batteries are installed in the
remote control.
2. Check that two AAA alkaline
batteries in the remote control are
at their normal energy (voltage)
level.
3. Enable the IR port of the computer
with the ThinkPad Features
program. (Disable the serial port
at this time.)
4. Refer to the trouble shooting
section in the Help menu of the
Mind Path Presentation F/X
program. Set up this program
following the guide.
5. If the preceding items are correct,
the radiation from the light of the
overhead projector might be
interfering the IR port of the
computer. Disable the rear IR
port of the computer, and use the
remote control with the front IR
port.
6. Use the remote control with
another computer, which IR port
works normally. If the remote
control does not work, the remote
control is not working properly.
If there is still a problem, refer to
"Infrared Related Symptoms" on
page 342.
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