Convergence Registration - VDC Display Systems MARQUEE 8521 Ultra Green User Manual

Marquee 8521 Ultra Green (HUD) User's Manual
3.4.3.7 C Linearity [GEOM] [ 7 ]
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 [▲]
and [▼] 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 [◄] or [►] until the characters at the left, middle, and
right of the screen have the same horizontal size.
3.4.3.8 S Linearity [GEOM] [ 8 ]
The S Linearity function corrects for vertical and horizontal non-linearity's 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 [▲] and [▼] 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 [◄] or [►] until the characters at the
left, middle, and right of the screen have the same horizontal size.
3.4.3.9 Skew [GEOM] [ 9 ]
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 [▲]
and [▼] until the image is slanted from side to side as desired.
For V Skew, press [▲] and [▼] to slant up or down.

3.5 Convergence Registration

With three-CRT systems normal convergence registration is the process of aligning
the red, green, and blue color components on the projection screen. The Marquee
8521 Ultra Green (HUD) projector is a single CRT/Lens system, as the name applies
and therefore requires only green geometry correction. Correction settings can also
be saved in Recall memories.
To Perform a Convergence:
Begin by selecting the input source to be converged. Convergence settings will be
saved in the current setup memory. Next, press [CONV] to display the Convergence
menu. Select one of the convergence options from the menu.
[ 5 ]: The Service selection is used to access the convergence service
utilities. These utilities are provided for qualified service personnel only.
(Password access is required).
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5. Service
During adjustments
pres <#> to cycle
to external image.
1. Green Interpolated
2. Green Random Access
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5. -
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7.-
During adjustments
press <#> to cycle
to internal image.
Operation