Control Data Corporation CDC CC63X Hardware Maintenance Manual page 113

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TABLE 6B-l. VIDEO ADJUSTMENT CONTROLS (CONTD)
CONTROL
V SIZE (Vertical
size potentiometer)
V LIN (Vertical
linearity
potentiometer)
H CTR (Horizontal
centering coil)
H SIZE (Horizontal
size coil)
H LIN (Horizontal
linearity coil)
62940034 E
PURPOSE
Adjusts height of
raster or moves top
and bottom vertical
lines of alignment
raster closer
together or further
apart.
Adjusts size ratio
\ between top and
\bottom halves of
\ screen, or makes the
\bottom vertical line
\higher than the top
\vertical line of the
\alignment raster or
\ vice versa.
\
\Affects overall
height.
I
\
ADJUSTMENT
\
\Adjust until vertical
\lines of alignment
\raster align with
bezel notches.
Adjust until both the
top and bottom vert-
ical lines of the
alignment raster are
of equal height.
---r
HORIZONTAL CONTROLS
Controls horizontal
centering of raster
Adjust raster so that
i t is centered hori-
on screen, or moves
zontally on screen, or
both horizontal lines until horizontal lines
of the alignment ras- of the alignment ras-
ter left or right
ter align with bezel
notches.
Adjusts width of ras-
ter, or moves the
left and right hori-
zontal lines of the
alignment raster
closer together or
further apart.
Adjusts size ration
of left to right half
of screen, or makes
the left horizontal
line of the align-
ment raster wider
than the right line
or vice versa.
Affects overall
width.
Adjust until hori-
zontal lines of the
alignment raster align
with bezel notches.
Adjust until both
horizontal lines of
alignment raster are
equal width.
6B-27
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I

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