User's Manual

97
Distorted sound is produced.
 Make sure that the volume control is not set too high or too low. In most cases,
a high setting can cause the audio electronics to distort the sound.
The sound system does not record.
 Adjust the playback or recording sound levels.
Startup Problems
When you turn on the computer, it does not seem to respond.
 If you are using an external AC power, make sure that the AC adapter is correctly
and securely connected. If so, make sure that the electrical outlet works properly.
 If you are using the battery power, make sure that the battery is not discharged.
 For models with the “HDD preheat” feature: When turning on the computer in an
extremely low temperature environment, the computer will heat up the hard disk
before starting up. The Hard Disk ( ) indicator glows red to indicate the
heater is on. Wait till the heating is finished. However, if external AC power
is not available and the remaining battery power is too low for the heating to
complete, the computer may not start up. In case the computer fails to start
up, turn off the computer and leave it in room temperature for about an hour
before trying to turn it on again.
When you turn on the computer, it stops after POST.
 Restart your computer.
WLAN Problems
I cannot use the WLAN feature.
 Make sure that the WLAN feature is turned on.
Transmission quality is poor.
 Your computer may be in an out-of-range situation. Move your computer closer
to the Access Point or another WLAN device it is associated with.