Dell 1210S User Manual page 24

21 Keystone adjustment Press to adjust image distortion caused by tilting
22 Auto adjust
23 Zoom +
24 Zoom -
25 VGA
26 Video
24 Using Your Projector
the projector (+40/-35 degrees).
Press to synchronize the projector with the input
source. Auto adjust does not operate if the OSD
is displayed.
Press to increase the image.
Press to decrease the image.
Press to choose VGA source.
Press to choose Composite Video source.