Accurate Technology Model 8, Installation Manual

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OPERATION
To adjust H bow, select Bow from the Geometry menu then press LEFT or
RIGHT until the image appears as desired. To adjust V Bow, press U P or DOWN until
the center of the picture is as curved or as straight as desired.
GEOM 7 C Linearity
The C Linearity function corrects for gradual non-linearity between the top and bottom or
left and right sides of the display image. Examples are shown below. In the first example
the top of the image increases in vertical size while the bottom decreases in vertical size.
In the second example the right side of the image increases in horizontal size while the
left side decreases in horizontal size.
Select C Linearity from the Geometry menu. It is best to have a screen full of
characters displayed. Or use one of the internal test patterns available by pressing #. If
there is a vertical non-linearity, press UP or DOWN until the characters at the top,
middle, and bottom of the screen have the same vertical size. If there is a horizontal non-
linearity, press
LEFT or RIGHT until the characters at the left, middle, and right of the
screen have the same horizontal size.
GEOM 8 S Linearity
The S Linearity function corrects for vertical and horizontal non-linearities which extend
from the center of the display to the top and bottom or left and right. Examples are shown
below. Notice how the top and bottom or left and right characters are much smaller in
size than the center characters.
Select S Linearity from the Geometry menu. It is best to have a screen full of
characters displayed. Or use one of the internal test patterns available by pressing #. If
there is a vertical non-linearity, press UP or DOWN until the characters at the top,
middle, and bottom of the screen have the same vertical size. If there is a horizontal non-
linearity, press
LEFT or RIGHT until the characters at the left, middle, and right of the
screen have the same horizontal size.
GEOM 9 Skew
The Skew function adjusts the display image so that the sides of an image appear to be
leaning to one side and/or shifted up or down. The two displays below demonstrate skew
adjustment.
To adjust H Skew, select Skew from the Geometry menu then use LEFT and
RIGHT until the image is slanted from side to side as desired. For V Skew, press UP or
DOWN to slant up or down.
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