Acer Projector - Manual (Page 17)

17 ... English
Keystone + / -

Adjusts image distortion caused by tilting the projector (±16
degrees).
Page Up (Computer mode only)

Use this button to page up. This function is only available
when the projector is connected to a computer via an USB cable.
Page Down (Computer mode only)

Use this button to page down. This function is only available
when the projector is connected to a computer via an USB cable.
Resync

Automatically synchronizes the projector to the input source.
Hide

Momentarily turns off the video. Press “Hide” to hide image,
press again to restore display of the image.
Source

Press “Source” to choose RGB, Component-p, Component-i,
S-Video, Composite Video , DVI-D (Optional)and HDTV
sources.
Freeze

Press “Freeze” to pause the screen image.
User Controls