If the touchpanel is in sleep mode, where the screen is not lit up at all, 
tap it to bring up the UNI logo screen (see left).

Tap the UNI logo graphic, to bring up the control screen (see next row).  

Note: If the touchpanel is not working, use the physical remote controls instead.

To power on the projector lamp, press one of the three (virtual) input buttons:
Computer, VCR-DVD, or Table Top (laptop).
  
When the projector lamp is already on, press those buttons, to switch between inputs.

When finished using the classroom, be sure to press the red QUIT button, 
to power off the projector lamp.

Note: If the projector does not detect the input selected, cycle between the inputs.

Troubleshooting
The auto-adjustment routine on some projector models does not always work properly.  
If the output on the projection screen looks messed up in some way, try pressing the 
AUTO ADJUST button on either the touchpanel (see left) or on the projector's physical
remote control (this button is also sometimes labeled as AUTO SETUP).