Acer P1250B Series User Manual page 39

Automatically adjusts image distortion caused by tilting
Auto Keystone
projection (±40 degrees).
Manually adjusts image distortion caused by tilting
projection (±40 degrees).
Manual
Keystone
Manually adjusts the shape and size of an image that is
unevenly rectangular on all sides. Press "MODE" repeatedly
to select the corner that you wish to adjust. Press four
directional selection keys to adjust the image shape.
4 Corner
Correction
Adjusts the sharpness of the image.
•
Sharpness
•
H. Position
•
(Horizontal
•
Position)
V. Position
•
(Vertical
•
Position)
Changes the projector's refresh rate to match the frequency
of your computer's graphics card. If you experience a vertical
Frequency
flickering bar in the projected image, use this function to
correct it.
Synchronizes the signal timing of the display with the
Tracking graphics card. If you experience an unstable or flickering
image, use this function to correct it.
This function is unavailable when Auto Keystone is set
to "On".
Please adjust 4-corner correction separately for each
aspect ratio, and its memory is allowed to save 4 sets of
settings only.
Press to decrease the sharpness.
Press to increase the sharpness.
Press to move the image left.
Press to move the image right.
Press to move the image down.
Press to move the image up.
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