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Section 3: Operation
J Series 2.0, 2.4, and 3.0kW User Manual
3-21
020-100707-01 Rev. 1 (10-2011)
ANAMORPHIC
-
displays an anamorphic image in its native 16:9 aspect ratio.
The image will fill the screen from side-to-side and be centered between black
bars at top and bottom.
SIZE
Controls both the image
width
and
height
in tandem, maintaining the current
aspect ratio of the displayed signal data.
VERTICAL STRETCH
Adjusts the
height
of the image while keeping the width constant. Use
“Vertical Stretch”
to change the aspect
ratio of the display.
PIXEL TRACK (For analog input signals only)
Steady flickering or several soft vertical stripes or bands across the entire image indicates poor pixel tracking.
Proper pixel tracking ensures that the image quality is consistent across the screen, the aspect ratio is
maintained, and that the pixel phase can be optimized (described below). Tracking determines the frequency of
the pixel-sampling clock, indicated by the number of incoming pixels per line, so that all pixels generated by a
particular source are sampled.
NOTE:
By default, the projector samples at the correct frequency for most sources.
For best results, use a test pattern such as a smooth grey consisting of a clear pattern of black and white
pixels. Adjust the slide bar until the vertical stripes broaden to the point where one large stripe fills the
image. If the image still exhibits some shimmer or noise, adjust
Pixel Phase
(below).
PIXEL PHASE (analog input signals only)
NOTE:
Adjust “Pixel Phase” after “Pixel Tracking”.
Adjust pixel phase when the image (usually from an RGB source) still shows shimmer or “noise” after pixel
tracking is optimized. Pixel phase adjusts the phase of the pixel-sampling clock relative to the incoming signal.
Adjust the slide bar until the image stabilizes and each pixel is clearly defined. You may notice that you can
stabilize the image at more than one point—i.e., you may find that the image appearance at “5” is identical to
the image appearance at “25”, thus you can use either setting.
If some shimmer from a video or HDTV source persists, use the “Filter” control to remove high-frequency
noise from the signal.
H-POSITION
Moves the image right or left within the area of available pixels.
NOTE:
The value shown represents where the approximate center of the image lies in relation to the total
number of pixels available horizontally. This varies widely according to the signal—watch the image while
adjusting.
V-POSITION
Moves the image up or down within the area of available pixels.
NOTE:
The value shown represents where the approximate center of the image lies in relation to the total
number of pixels available vertically. This varies widely according to the signal—watch the image while
adjusting.
F
IGURE
3-24 A
NAMORPHIC
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