Acer X1140A User Manual - Page 31

Manual, Keystone, <Note&gt, Sharpness, H. Position, Horizontal, Vertical, Frequency, Tracking

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English 21 Manual Keystone Sharpness H. Position (Horizontal Position) V. Position (Vertical Position) Frequency Tracking Manually adjusts image distortion caused by tilting projection (±40 degrees). The Manual Keystone function is unavailable under Auto Keystone setting to "On". Adjusts the sharpness of the image. • Press to decrease the sharpness. • Press to increase the sharpness. • Press • Press to move the image left. to move the image right. • Press to move the image down. • Press to move the image up. Changes the projector's refresh rate to match the frequency of your computer's graphics card. If you experience a vertical flickering bar in the projected image, use this function to correct it. Synchronizes the signal timing of the display with the graphics card. If you experience an unstable or flickering image, use this function to correct it. Note: "H. Position", "V. Position", "Frequency" and "Tracking" functions are not supported under video mode. Note: "Sharpness" function is not supported under computer mode.

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21
English
Note:
"H. Position", "V. Position", "Frequency" and "Tracking" functions
are not supported under video mode.
Note:
"Sharpness" function is not supported under computer mode.
Manual
Keystone
Manually adjusts image distortion caused by tilting
projection (±40 degrees).
<Note>
The Manual Keystone function is unavailable under
Auto Keystone setting to "On".
Sharpness
Adjusts the sharpness of the image.
•
Press
to decrease the sharpness.
•
Press
to increase the sharpness.
H. Position
(Horizontal
Position)
•
Press
to move the image left.
•
Press
to move the image right.
V. Position
(Vertical
Position)
•
Press
to move the image down.
•
Press
to move the image up.
Frequency
Changes the projector’s refresh rate to match the frequency
of your computer’s graphics card. If you experience a vertical
flickering bar in the projected image, use this function to
correct it.
Tracking
Synchronizes the signal timing of the display with the
graphics card. If you experience an unstable or flickering
image, use this function to correct it.