Dell 1410X Projector - Manual (Page 24)

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