Christie DLV1280 DX, User Manual

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OPERATION
3-24
DLV1280 DX User’s Manual
•
Select
“FULL HEIGHT”
to fill the display from top-to-
bottom. Depending on the source, this may create
side borders. See right.
•
Select
“ANAMORPHIC”
to display an entire non-
HDTV “wide screen” (anamorphic) image in its native
16:9 aspect ratio. Known as letterbox, the image will fill
the screen from left-to-right, but will not use all vertical
pixels available (top and bottom will be black). If you
do not choose “Anamorphic” when a non-HDTV
anamorphic image is present, the default image will be
stretched vertically, characterized by obvious distortion
and “thin people”.
NOTE: Use “Anamorphic” for regaining a 16:9 display of non-HDTV
anamorphic sources only (typically found on some DVDs, for example). For
HDTV, the “Default” setting will produce the same result.
•
All
TILED
resizing choices are selectable only if you have defined a tiled group of
projectors in the Tiling Setup submenu. See 3.10, Using Multiple Projectors.
Size
Size controls both the image width and height in tandem, maintaining the original
aspect ratio (proportion) of data from the incoming signal.
Vertical Stretch
Vertical stretch adjusts the height the image while keeping the width constant. Use
Vertical Stretch to display data from the incoming signal in a different aspect ratio.
Pixel Track
(
SHORT CUT:
Press Pixel and adjust the top slidebar.)
Pixel tracking adjusts the frequency of the pixel sampling clock, indicated by the
number of pixels per line, so that all pixels generated by a particular source are
sampled. Proper pixel tracking ensures that the image quality–whether good or poor–
is consistent across the screen, that it is the correct aspect ratio, and that pixel phase
can be optimized (below).
NOTE: By default, the projector will sample at the correct frequency for most sources.
Pixel tracking is adjusted most effectively using a good test pattern, such as a smooth
gray consisting of a clear pattern of tiny black and white dots, or a similar “half on,
half off” graphic image, such as the Windows shutdown screen. Steady flickering or
several soft vertical stripes or bands across the entire image indicates poor pixel
tracking. Adjust the slidebar until the stripes broaden to the point where one large
stripe fills the image. Again, the image may still exhibit some noise. See Pixel Phase.