Operation
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PlasmaWall XP Series Installation/Operation Manual
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Figure 4-6. Overscan Modes
Phase (RGB, Component or SCART sources):
This control adjusts the phase of the
pixel sampling clock relative to the incoming signal. Adjust the phase when an RGB,
Component or SCART image still shows shimmer or “noise” after Tracking has been
optimized.
For best results, use a good test pattern such as a smooth gray consisting of a clear
pattern of black and white pixels, or a similar “half on, half off” graphic image. Adjust the
slidebar until the image stabilizes and each pixel is clearly defined. You may notice that
you can stabilize the image at more than one point. Use either setting in such cases.
Tracking (RGB, Component or SCART sources):
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.
Steady flickering or several soft vertical stripes or bands across the entire image indicates
poor pixel tracking. Proper pixel tracking helps ensure that the image quality is consistent
across the screen, that aspect ratio is maintained and that pixel phase (see above) can be
optimized.
Adjust the Phase after adjusting Tracking (see below).
No Overscan
Crop
Zoom
4:3
16 :9
= Source Image Area
= Mask (Crop) Area
= Screen (16:9)
Tip
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