IBM 755X (9545) User Manual
Symptom/Error
FRU/Action
Abnormal
screen
screen
Uneven
color on the
screen
color on the
screen
Spot on the
screen
screen
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.
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.
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.
responsible for repair costs if the LCD
cover was damaged due to misuse,
excessive force, scratch, or liquid
spilled by the customer.
The computer
has an
intermittent
problem when
you use it on the
overhead
projector.
has an
intermittent
problem when
you use it on the
overhead
projector.
Problem such as high environmental
temperature might be the cause.
Use the stand supplied with the
computer.
temperature might be the cause.
Use the stand supplied with the
computer.
The remote
control does not
work.
control does not
work.
1. Check that two AAA alkaline
batteries are installed in the
remote control.
remote control.
2. Check that two AAA alkaline
batteries in the remote control are
at their normal energy (voltage)
level.
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.)
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.
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.
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.
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.
“Infrared Related Symptoms” on
page 342.
338
IBM Mobile Systems HMM