Knoll Systems HD225 - Manual (Page 18)

18
Picture menu
To adjust the following six
settings, highlight the setting,
press Select, use the up and
down arrows to adjust the
values, then press select to
confirm the changes.
Vertical Keystone: adjusts the
image vertically and makes a
squarer image. You can also
adjust vertical keystone from the
keypad. If you want the projector
to automatically adjust the
vertical keystone, check the Auto
Vertical check box.
Horizontal Keystone: adjusts
the image horizontally and
makes a squarer image.
Contrast: controls the degree of
difference between the lightest
and darkest parts of the picture
and changes the amount of black
and white in the image.
Brightness: changes the
intensity of the image.
Color: (video and component
sources only) adjusts a video
image from black and white to
fully saturated color.
Tint: (NTSC video sources only) adjusts the red-green color balance in the image.
Aspect Ratio: aspect ratio is the ratio of the image width to image height. TV screens are usually
1.33:1, also known as 4:3. HDTV and most DVDs are 1.78:1, or 16:9. The default is16:9.
Native: this mode bypasses the internal scaler, displaying the image with no resizing. Since the
native resolution is 1280x720 and 4x3 video images are approximately 640x480, 4x3 images will
always be smaller than the display and will be centered in the display. Computer images
1024x768 or smaller will also be centered in the display. If a 16x9 video source or a 1280x1024
or larger computer source is viewed, it will display up to 1280 pixels and 720 lines from the center
of the input.
16:9: the default is 16:9,
which preserves the 16:9
aspect ratio and is designed
to be used with content that
is enhanced for widescreen
TVs.