Optoma EH415 - Manual (Page 48)

48
User Controls
Options
Input Source
Enter the Input Source submenu. Select the sources to
scan for at startup. See page 51 for more information.
Source Lock
Lock the current source as the only available source, even
if the cable is unplugged.

On—only the current source is recognized as an input
source.

Off—all sources selected in Options | Input Source are
recognized as an input source.
High Altitude
Adjust the fan speed to reflect the environment.

On—increases fan speed for high temperature, humidity,
or altitude.

Off—regular fan speed for normal conditions.
Information Hide
Suppress informational messages on the projected screen.

On—no status messages appear on screen during
operation.

Off— status messages appear as normal on screen
during operation.