Dell S300w - Manual (Page 31)

Using Your Projector 31
18 Mute Press to mute or un-mute the projector speaker.
19 Zoom + Press to increase the image.
20 Zoom - Press to decrease the image.
21 Volume up Press to increase the volume.
22 Volume down Press to decrease the volume.
23 Freeze Press to pause the screen image, then press
"Freeze" again to unfreeze image.
24 VGA Press to choose VGA source.
25 Source Press to switch between Analog RGB, Composite,
Component (YPbPr, via VGA), HDMI, and
S-video source.
26 Auto adjust Press to synchronize the projector with the input
source. Auto adjust does not operate if the OSD
is displayed.