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Make sure that the sound is not muted.
Make sure that the computer is not in Sleep mode.
If using an external speaker, make sure that the speaker is properly
connected.
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.
Startup Problems
When you turn on the computer, it does not respond and the Power
Indicator does not light green.
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.
When the ambient temperature is below -20
°
C (-4
°
F), the computer will
start up only if both battery packs are installed.
When you turn on the computer, it stops after POST.
Reset 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.
