Справочник Пользователя для Acer x1273n

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Keystone
Manually adjusts image distortion caused by tilting 
projection (±40 degrees).
This function is unavailable when Auto Keystone is set 
to "On".
Manual 
Keystone
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.
HDMI Color 
Range
Adjusts the color range of the HDMI image data to prevent 
color display error.
Auto: Automatically adjusts the color range by 
information from the player.
Limited Range: Processes the input image as limited 
color range data.
Full Range: Processes the input image as full color range 
data.
HDMI Scan Info
Adjusts the overscan ratio of the HDMI image on screen.
Auto: Automatically adjusts the overscan ratio by 
information from the player.
Underscan: Always no overscan on the HDMI image.
Overscan: Always keep overscan on the HDMI image.