Pixel Track; Pixel Phase; H-Position; V-Position - Christie Entero RPMWU User Manual

Pixel Track

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,
or a similar "half on, half off" graphic image, such as the Windows shutdown screen. 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

Adjust "Pixel Phase" after "Pixel Track". 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 "11" is identical to the image appearance at "38", 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. See Filter, on page 3-23.

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.

Keep Aspect On Auto Setup

Ensures that auto setup for any source will maintain the input aspect ratio when the default size is calculated. If
disabled and the source is not a special case video source where a default stretch is defined, the source is scaled
to fit the platform.
Entero RPMWU/RPMSP/RPMHD-LED01 User Manual
020-100367-05 Rev. 1 (06-2012)
Section 3: Operation
3-19