Acer K520 User Manual - Page 30

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20 Image English Projection Front-Desktop • The factory default setting. Aspect Ratio Manual Keystone Rear-Desktop • When you select this function, the projector reverses the image so you can project from behind a translucent screen. Rear-Ceiling • When you select this function, the projector reverses and inverts the image at same time. You can project from behind a translucent screen with ceiling mounted projection. Front-Ceiling • When you select this function, the projector inverts the image for ceiling-mounted projection. Use this function to choose your desired aspect ratio. • Auto: Keep the image with original width-higth ratio and maxi mize the image to fit native horizontal or vertical pixels. • 4:3: The image will be scaled to fit the screen and displayed using a 4:3 ratio. • 16:9: The image will be scaled to fit the width of the screen and the height adjusted to display the image using a 16:10 ratio. Adjust image distortion caused by tilting projection. (±40 degrees) H. Position (Horizontal position) The Manual Keystone funcion is unavailable under Auto Keystone setting to "On". • Press to move the image left. • Press to to move the image right. V. Position • (Vertical position) • Press Press to move the image down. to move the image up. 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.

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20
English
Image
Projection
Front-Desktop
•
The factory default setting.
Rear-Desktop
•
When you select this function, the projector reverses the image
so you can project from behind a translucent screen.
Rear-Ceiling
•
When you select this function, the projector reverses and inverts
the image at same time. You can project from behind a
translucent screen with ceiling mounted projection.
Front-Ceiling
•
When you select this function, the projector inverts the image
for ceiling-mounted projection.
Aspect Ratio
Use this function to choose your desired aspect ratio.
•
Auto: Keep the image with original width-higth ratio and maxi
mize the image to fit native horizontal or vertical pixels.
•
4:3: The image will be scaled to fit the screen and displayed
using a 4:3 ratio.
•
16:9:
The image will be scaled to fit the width of the screen and
the height adjusted to display the image using a 16:10 ratio.
Manual Keystone
Adjust image distortion caused by tilting projection. (±40 degrees)
<Note>
The Manual Keystone funcion is unavailable under Auto
Keystone setting to "On".
H. Position
(Horizontal
position)
•
Press
to move the image left.
•
Press
to to move the image right.
V. Position
(Vertical position)
•
Press
to move the image down.
•
Press
to move the image up.
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.