Dell Latitude D531 (Mid 2007) - Manual (Page 17)

About Your Computer 17
If the computer is connected to an electrical outlet, the light operates as follows:
• Solid green: The battery is charging.
• Flashing green: The battery is almost fully charged.
If the computer is running on a battery, the light operates as follows:
• Off: The battery is adequately charged (or the computer is turned off).
• Flashing orange: The battery charge is low.
• Solid orange: The battery charge is critically low.
SP E A K E RS — To adjust the volume of the integrated speakers, press the volume-control keyboard shortcuts. For
more information, see "Adjusting the Volume" on page 53.
KE Y BOA RD — The keyboard includes a numeric keypad as well as the Windows logo key. For information on
supported keyboard shortcuts, see "Key Combinations" on page 35.
T O U C H P A D — Provides the functionality of a mouse. See "Touch Pad" on page 37 for more information.
T O U C H P A D B U T T O N S — Provide the functionality of a mouse. See "Touch Pad" on page 37 for more information.
WI RE LE S S E N A B L E / D I S A B L E B U T T O N — Toggles the Bluetooth or WLAN networking technology on and off.
A M B I E N T L I G H T SE N S OR — Measures the intensity of light near the computer and adjusts the backlighting of the
LCD screen. This function provides optimal viewing and saves battery usage by reducing power to the LCD screen
when a high level of backlighting is not needed. See "Saving Battery Power" on page 45 for more information.
Turns on when you turn on the computer and blinks when the computer is in
standby mode.
Turns on steadily or blinks to indicate battery charge status.
Turns on when Bluetooth
® wireless technology is enabled. To enable or
disable Bluetooth wireless technology or other wireless devices, press the
wireless enable/disable button.
NOTE: Bluetooth wireless technology is an optional feature on your computer,
so the icon turns on only if Bluetooth wireless technology is installed on
your computer.
For more information, see the documentation that came with your Bluetooth
wireless technology.
Turns on when wireless devices are enabled.
Turns on when the computer reads or writes data.
NOTICE: To avoid loss of data, never turn off the computer while the
light is flashing.