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CRT projection angle adjustment
The projection angle of the red and blue CRT's is dependent on the
desired size of the projected image. If the centers of green, blue and
red do not coincide, the CRT projection angle must be adjusted.
Never try to correct this misalignment with the shift correction or the
static convergence controls. These controls may only be applied to
correct small errors which cannot be corrected by the CRT angle
adjustment.
Ensure that the rasters are centered on the CRT face.
Press ENTER to start the CRT angle adjustment procedure. A
crosshairs (green and red) will be displayed on the screen.
ENTER continues to the crosshairs alignment.
EXIT returns to raster shift adjustment
ADJUST returns to operational mode.
5975987 BARCODATA 708 260597
Projection angle correctly aligned
for screen width SW1
SW1
Installation Adjustments
CRT PROJECTION ANGLE
ADJUSTMENT
CRT PROJECTION ANGLE IS
THE FIRST STEP OF STATIC
CONVERGENCE ADJUSTMENT.
IT IS CRITICAL THAT THE
RASTERS ARE CENTERED ON
THE CRT FACE PLATES
PRIOR TO PERFORMING
THIS STEP.
...
<ENTER> to read more
<EXIT> to return
CRT PROJECTION ANGLE
ADJUSTMENT
DURING THIS PROCEDURE,
RED ON GREEN AND THEN
BLUE ON GREEN CROSSHAIRS
WILL BE DISPLAYED
TO ALLOW THE RED AND
BLUE CRTS TO BE ALIGNED
WITH THE GREEN CRT.
LOOSEN BOLTS A AND B
TO PIVOT THE RED CRT,
AND BOLDS C AND D
TO PIVOT THE BLUE CRT.
<ENTER> to continue
<EXIT> to return
The same projection angle is mis-aligned for new
screen width SW2. Re-alignment is necessary.
Each screen width change requires readjust-
ment of the projection angle.
SW2
(SW2>SW1)
7 - 7
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