Left Side View - Dell Inspiron 1521 Owner's Manual

If the computer is running on a battery, the
Off: The battery is adequately charged (or the computer is turned off).
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Flashing amber: The battery charge is low.
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Solid amber: The battery charge is critically low.
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touch pad — Provides the functionality of a mouse (see
touch pad buttons — Use these buttons much like the buttons on a mouse when you use the touch pad to move the cursor on the display (see
media control buttons — Control CD, DVD, and Media Player playback.
Mute
Turn the volume down
Turn the volume up
Play or pause
Dell™ MediaDirect™ button — Press the Dell MediaDirect button to launch Dell MediaDirect (see Using Dell MediaDirect™).
keyboard status lights
The blue lights located above the keyboard indicate the following:
Turns on when the numeric keypad is enabled.
Turns on when the uppercase letter (caps lock) function is enabled.
Turns on when the scroll lock function is enabled.
digital array microphones — Built-in microphone for conferencing and chat.
Left Side View
light operates as follows:
Touch Pad).
Play the previous track
Play the next track
Stop
Touch Pad).