Acer P7215 Series User Manual page 31

Use this function to choose your desired aspect ratio.
Aspect Ratio
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Keystone Adjust image distortion caused by tilting projection. (±40 degrees)
Sharpeness Adjusts the sharpness of the image.
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H. Position
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(Horizontal
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position)
V. Position
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(Vertical position)
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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.
HDMI Color Range Adjust the color range of the HDMI image data to correct color display
error.
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HDMI Scan Info Adjust the overscan ratio of the HDMI image on screen.
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Note: "H. Position", "V. Position", "Frequency" and "Tracking" functions
are not supported under HDMI, DVI or Video mode.
Note: "HDMI Color Range" and "HDMI Scan Info" functions are only
supported under HDMI mode.
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 16:9 ratio.
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.
Auto: Automatically adjust by information from player.
Limited Range: Prosess the input image as limited color range data.
Full Range: Prosess the input image as full color range data.
Auto: Automatically adjust by information from player.
Underscan: Always no overscan on HDMI image.
Overscan: Always keep overscan on HDMI image.
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