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Chapter 4. Troubleshooting
27
Display panel problems
The screen is blank. Do the following:
- If you are using the AC power adapter or the battery pack,
and th
e battery status indicator is on, press F12 (
) to
make the screen brighter.
- If the power indicator is blinking, press the Power button to
r
esume from sleep mode.
- If the problem persists, follow the solution in the next
p
roblem “The screen is unreadable or distorted.”
The screen is unreadable
or
distorted.
Make sure that:
- The screen resolution and color quality are correctly set.
- The monitor type is correct.
Incorrect characters
appe
ar on the screen.
Is the operating system or programs installed correctly? If
they are installed and configured correctly, have the
computer serviced.
Sound problems
No sound can be heard
from the speakers even
when the volume is turned
up.
Make sur
e that:
- The Mute function is off.
- The combo audio jack is not being used.
- Speakers are selected as the playback device.
Battery pack problems
Your computer shuts down
before the battery status
indicator shows empty.
-or-
Your computer operates
after the battery status
indicator shows empty.
Re
charge the battery.
31


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