Casio XJ-M250/XJ-M255* - Manual (Page 36)

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High Altitude R C V H D U N Single Use this sub-menu to turn the high-altitude fan speed setting on or
off in accordance with the altitude of the area where you are using
the projector.
On:
Select this setting when using the projector in a high altitude
(1,500 to 3,000 meters above sea level) area where air is thin. This
setting increases cooling efficiency.
Off *:
Select this setting at normal altitudes (up to 1,500 meters).
Important!
Do not use this projector at altitudes greater than
3,000 meters above sea level.
Restore Menu
Defaults R C V H D U N Single This sub-menu returns all of the sub-menu items on the Option
Settings 2 main menu to their initial default settings.
*1 When plug-and-play is turned on, the projector will make that device the input source
automatically. For details about plug-and-play, see “USB Function Guide” on the bundled
CD-ROM.
Setting Name Input Setting Unit Description