Dell Precision M20 User Manual page 3

Turns on when you turn on the computer and blinks when the computer is in a power management mode.
Turns on when the computer reads or writes data.
NOTICE: To avoid loss of data, never turn off the computer while the
Turns on steadily or blinks to indicate battery charge status.
If the computer is connected to an electrical outlet, the
Solid green: The battery is charging.
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Flashing green: The battery is almost fully charged.
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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 orange: The battery charge is low.
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Solid orange: The battery charge is critically low.
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keyboard — The keyboard includes a numeric keypad as well as the Windows logo key. For information on supported keyboard shortcuts, see
Keyboard and Touch Pad."
touch pad — Provides the functionality of a mouse. See
display latch — Keeps the display closed.
speakers — To adjust the volume of the integrated speakers, press the volume control buttons, mute button, or volume-control keyboard shortcuts. For more
information, see "Using the Keyboard and Touch
track stick/touch pad buttons —
track stick — Provides the functionality of a mouse. See
volume control buttons — Press these buttons to adjust the volume.
mute button — Press this button to turn off the volume.
keyboard and wireless status lights
light operates as follows:
light operates as follows:
"Using the Keyboard and Touch
Pad."
Provide the functionality of a mouse. See
"Using the Keyboard and Touch
light is flashing.
Pad" for more information.
"Using the Keyboard and Touch Pad" for more information.
Pad" for more information.
"Using the