Selecting an Image Source
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.
button on the projector, remote control, or control pad, then select the source you want.
Using Basic Projector Features
Selecting a Networked Device Source