Optoma GT750E User Guide - Page 37
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User Controls OPTIONS To turn off the keypad lock, press and hold "Enter" key on top of the projector for 5 seconds. Source Lock On: The projector will only search current input connection. Off: The projector will search for other signals if the current input signal is lost. High Altitude When "On" is selected, the fans will spin faster. This feature is useful in high altitude areas where the air is thin. Information Hide On: Choose "On" to hide the info message. Off: Choose "Off" to show the "searching" message. Keypad Lock When the keypad lock function is "On", the control panel will be locked however, the projector can be operated by the remote control. By selecting "Off", you will be able to reuse the control panel. Background Color Use this feature to display a "Black", "Red", "Blue", "Green" or "White", screen when no signal is available. Test Pattern Display a test pattern. There are Grid, White pattern and None. Reset Choose "Yes" to return the display parameters on all menus to the factory default settings. 37 English