Make sure the power to your computer or video equipment is turned on.
If you’ve connected a computer and one or more video sources, you may need to press the Source Search button on the projector or one of the source buttons on the remote control to select the image source. Allow a few seconds for the projector to sync up after pressing the button.
If you’ve using a notebook, make sure it’s set to display on an external monitor.
For instructions select the link for your notebook type: