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Operating Instructions 3-7
♦ To protect the CD against scratches and dirt when not in use, keep the CD in
its protective case.
♦ Clean a CD with a clean, dry, lint-free cloth. Always wipe from the center to
the edge. Don’t wipe the CD in a clockwise or counterclockwise direction.
♦ Keep CDs away from high temperatures and direct sunlight.
3.5 Built-In Sound System
The Extensa 900 Series Notebook comes with an internal microphone and stereo
speakers. These features give direct sound generation and recording capability in the
system.
3.5.1 Turning Sound On/Off
To mute or restore sound, press the following keys:
♦ Fn+PgUp: Turns mute On/Off
3.5.2 Sound Software
The computer has pre-installed sound support utilities in the AudioRack32 group.
These include:
♦ AudioRack™32
♦ Audio Recorder