Dell Projector 1220 - Manual (Page 24)

24 Using Your Projector
AUTO ADJUST
Auto Adjust automatically adjusts the projector's Horizontal, Vertical,
Frequency, and Tracking in PC mode.
BRIGHTNESS/CONTRAST
The Brightness/Contrast menu allows you adjust the brightness/contrast
settings of your projector.
B RIGHTNESS — Use and to adjust the brightness of the image.
C
ONTRAST
— Use and to adjust the display contrast.
NOTE: If you adjust the settings for Brightness and Contrast the
projector automatically switches to Custom mode.