Acer K330 - Manual (Page 29)

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Setting
Management
Menu Location Choose the menu location on the display screen.
Closed Caption Selects a preferred closed captioning mode from CC1, CC2, CC3,
CC4, (CC1 displays captions in the primary language in your area).
Select "Off" to turn off the captioning feature. This function is only
available when a composite video or S-Video input signal is
selected and its system format is NTSC.
<Note> Set your screen aspect ratio to 4:3. This function is not
available when the aspect ratio is "16:9" or "Auto" .
USB Display Default is Off (USB Storage mode).
Choose "Off" to access internal memory (RAM) when linkage USB
cable.
Choose "On" to do USB projection.
Reset
Press the button and choose "Yes" to return the parameters
on all menus to the factory default settings.
ECO Mode Choose "On" to dim the projector lamp which will lower power
consumption, extend the lamp life and reduce noise. Choose "Off"
to return normal mode.
High Altitude Choose "On" to turn on High Altitude mode. Operate the fans at
full speed continuously to allow for proper high altitude cooling of
the projector.
Auto Shutdown The projector will automatically shutdown when there is no signal
input after the allocated time. (in minutes)