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Random Access Adjustment Mode
Raster Shift Adjustment
The green raster must be centered both horizontally and vertically on the center of
the CRT surface. To center the green raster, look into the green lens and use the
control disc to move the raster.
CAUTION
It is necessary to look into the lenses to perform these adjustments. To avoid eye
discomfort while looking into the lenses, reduce the contrast and gradually
increase the brightness level until the raster becomes visible on the face of the CRT.
To start the adjustment, use the control disc to highlight Raster shift and press
ENTER to display the green raster on the phosphor.
Press EXIT to return to the Geometry menu.
Note : Horizontal and Vertical shifts for Red and Blue should end
up with a setting close to 50%. If these settings are significantly
greater or lesser than 50%, contact a RUNCO authorized service
technician.
ENTER will select green raster shift adjustment.
EXIT returns to random access adjustment mode menu.
Warning : In order to ensure maximum CRT longevity and to
avoid CRT damage, do not shift the raster outside the phosphor
area of the CRT.
GEOMETRY
H PHASE
LEFT - RIGHT (E-W)
TOP - BOTTOM (N-S)
SIZE
V LINEARITY
BLANKING
Select with
then <ENTER>
<EXIT> to return.
or
RASTER SHIFT
COARSE SHIFT
GREEN HORIZONTAL
GREEN VERTICAL
RED VERTICAL
BLUE VERTICAL
Select with
then <ENTER>
<EXIT> to return.
or
forbidden area
projected raster
crt faceplate border
phosphor border
correct raster position
wrong raster position