Microtek CX4 - Manual (Page 38)

Keystone
Modifies the shape of projected image if it is a little trapezium-like.
Volume
Selects the volume, which can adjust the volume of the audio output from the
speakers. When entering the “Volume” icon, you will see the “Volume” and “Mute”
in the box.
Volume item can adjust the volume of the audio output from the speakers.
Mute item can mute the volume of the audio output from the speakers.
Projection Mode
Selects the projection mode, which can be front, ceiling, rear and ceiling & rear
projection. When entering the “Projection Mode” icon, you will see the “Front”,
“Ceiling”, “Rear” and “Ceiling+Rear” bars in the box.
Front projection is the common mode and set up as the default before
shipment of the projector.
The image is displayed upside down when you enter “Ceiling” and have it
on. You need to select ceiling projection mode when the projector is fixed
onto the ceiling.
The both sides of the image are displayed contrarily when you enter ”Rear”
and have it on. You need to select rear projection mode when using a
certain transparent screen and appreciating the image on the opposite of
the projector.
The image is displayed upside down and both sides of the image are shown
contrarily when you enter “Ceiling+Rear” and have it on. You need to select
ceiling & rear projection mode when the projector is fixed onto the ceiling,
projecting to a certain transparent screen and you appreciate the image on
the opposite of the projector.
Notice: If you want to change the mode to front projection from ceiling, rear or
ceiling+rear projection, just enter “Front” and have it on.
Mouse
To perform the mouse function with the remote control, you need to enter the
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