Acer X138GWH User Manual page 46

H./V. Keystone H. Keystone
Press the
and makes a squarer image.
V. Keystone
Press the
makes a squarer image.
4 Corner Manually adjusts the shape and size of an image that is unevenly
Correction 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.
<Note> The function is unavailable when H./ V. Keystone is adjusted.
Native Resolution Adjust the resolution by changing Native Resolution settings.
Digital Zoom Out Sets the default size of the projected image. You can further zoom in
or out the image by pressing
Digital Zoom Out and Image Shift together helps you fit the projected
image full screen without adjusting the existing ceiling mount settings.
Digital lens shift/
•
Image Shift
•
Sharpness Adjusts the sharpness of the image.
•
•
H. Position
•
(Horizontal
position) •
V. Position
•
(Vertical position)
•
Frequency "Frequency" changes the projector's refresh rate to match the
frequency of your computer's graphics card. If you can see a vertical
flickering bar in the projected image, use this function to make the
necessary adjustments.
Tracking Synchronizes the signal timing of the projector with the graphics card.
If you experience an unstable or flickering image, use this function to
correct it.
or button to adjust image distortion horizontally
or button to adjust image distortion vertically and
Digital lens shift: Shifts the projected image by pressing
Image Shift: Shifts the projected image by pressing
. The function is only available when the setting
of Digital Zoom Out is less than 1.0.
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.
or . Using the functions of
35
.