Electrohome VistaGRAPHX 10K, Руководство пользователя

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sampled. Proper pixel tracking ensures that the image is of the correct proportion
and not stretched or compressed from left-to-right.
NOTE: By default, the projector samples at the correct frequency for a given
source. For best results, it is recommended that this default not be overridden.
Pixel tracking is adjusted most effectively using a good test pattern, such as a
smooth gray image made up of a clear pattern of tiny black and white dots, or a
similar graphic image. Steady flickering or several soft vertical stripes or bands
across the entire image indicates poor pixel tracking. Adjust the slidebar up or
down until the stripes broaden to the point where one large stripe fills the image.
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from presentation level. Or use
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bottom slidebar.)
Pixel phase adjusts the phase of the pixel sampling clock relative to the incoming
signal. It is used primarily for adjusting RGB inputs.
NOTE: Adjust pixel phase after pixel tracking is properly set.
Adjust pixel phase when the image (usually from an RGB source) shows
shimmer or “noise”. Pixel phase adjustment is done most effectively from within
a proper test pattern, such as a smooth gray image made up of a clear pattern of
tiny black and white dots, or a similar graphic image. Adjust until the image is
stable and each dot is clearly defined. Using the numbers on the slidebar as a
guide, you will notice that you can actually stabilize the image at more than one
point—i.e., you may find that the image appearance at "11" is the same as the
image appearance at "38", thus you can select either setting.
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Blanks (turns to black) the top, bottom, left, or right edge of the image so that
any unwanted information is hidden.
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from presentation level.)
Resizing generates a separate submenu of controls as described below.
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Resizing allows you to increase or decrease the size of your image. You can also
control the horizontal and vertical sizes independently to change the aspect ratio
of an image, and you can move the image to a specific area of the screen. Use
resizing in order to match your image precisely to the specific screen size and
aspect ratio (proportion) needed in your application.
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The three sets of horizontal/vertical resizing controls plus a “Presets” option
reside in their own Resizing submenu (Figure 3-10). Access this submenu
through the “
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” pull-down list in the Size / Position menu.
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