If
you connected multiple image sources to the projector, such as a
computer and DVD player, you may want to switch from one image
source to the other.
Make sure the connected image source you want to use is
turned on.
For video image sources, insert a DVD or other video media
and press its play button (if necessary).
Press the Source Search button
on the projector, remote control, or control pad, then select the
source you want.