Apple G4 17-inch - Manual (Page 14)

14 Chapter 1
Adjusting the Internal Display
Once you begin working with your new PowerBook, you may need to adjust your display so
that items on the screen are easier to see.
Adjusting the Display Brightness and Keyboard Illumination
Your PowerBook is equipped with an ambient light-sensing (ALS) system. Sensors under the
speaker grilles automatically adjust the brightness of your display and keyboard illumination
according to the light available in your current environment. You can also adjust the
automatic brightness settings of your display and keyboard manually, using the brightness
control keys and the keyboard illumination control keys.
To turn off the automatic display brightness feature, open the Displays pane of System
Preferences and deselect the automatic brightness checkbox. You can turn off the keyboard
illumination feature in the Keyboard pane of System Preferences or by pressing the F8 key.
Note: Even when the keyboard illumination feature is on, the keyboard illuminates only in
low-light situations.
¤ Brightness controls
®
Keyboard illumination
controls
ALS sensor
ALS sensor