Left Side View - Dell Latitude D620 ATG User Manual

keyboard status lights
The green lights located above the keyboard indicate the following:
Turns on when the numeric keypad is enabled.
Turns on when the uppercase letter function is enabled.
Turns on when the scroll lock function is enabled.
volume control buttons — Press these buttons to adjust the volume.
ambient light sensor — Detects available environmental light and automatically increases or decreases the display backlighting to compensate for low-light
and high-light environments. Press the <Fn> and left-arrow key to enable or disable the sensor (see
mute button — Press this button to turn off the volume.
keyboard illumination lights — Press <Fn> and the right-arrow key to toggle on and off these lights for illumination of the keyboard in low-light environments.
Left Side View
Using the Ambient Light Sensor).