Optoma EP721 User Manual

37

English

  Menu Location

Choose the menu location on the display screen.

  Source Lock



 

On: The projector will search specified connection port.



 

Off: The projector will search for other signals if the current 

input signal is lost. 

  High Altitude

Choose “On” to turn on High Altitude mode. Operates the fans at 

full speed continuously to allow for proper high altitude cooling of 

the projector.

  Keypad Lock

When the keypad lock function is on, the control panel will be 

locked, but the projector can still be operated by the remote 

control. If canceling this function, use the remote control or press 

the “Enter” key on the control panel for 7 seconds to turn it off.

  Background Color

Use this feature to display a “Blue” or “Black” screen when no 

signal is available.

  Mute



 

Choose the “On” to turn mute on. 



 

Choose the “Off” to turn mute off.