Dell Alienware AW520H User Manual page 21

Problems
Abnormal sound
is coming out of
the headset
Headset LEDs
do not light up
Microphone
picks up too
much
background
noise
Microphone mute is
not working when
connected with
3.5 mm audio adapter
Alienware
command center
does not
recognize the
headset
Possible solutions
Ensure that the USB plug is fully inserted into the USB
port of the computer or other device (if connected
through the USB cable).
Ensure that the 3.5 mm audio adapter plug is fully inserted
into the audio port of the computer or other devices (if
connected through the 3.5 mm audio adapter).
Ensure that the headset is connected to computer.
Open Alienware Command Center, and ensure that
the LEDs are enabled.
The Alienhead LED is disabled when the headset is
connected to the device using the 3.5 mm audio adapter.
Ensure that the microphone is positioned approximately
2 cm from your mouth.
Eliminate any direct airflow in the microphone (such
as fans or air conditioners)
Ensure that the audio plug end is well inserted into
the port on your headset and computer respectively.

AWCC does not work when using the 3.5 mm audio
adapter connection.
If the above does not work, reinstall AWCC.
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