RASTER CENTERING
CONTRAST LEVEL IS REDUCED
AND BRIGHTNESS INCREASED
TO MAKE THE RASTER
VISIBLE ON THE FACE PLATE
OF EACH CRT.
USE THE ARROW KEYS
TO CENTER THE RASTER
ON THE GREEN, RED AND
BLUE CRT RESPECTIVELY
<ENTER> to continue
<EXIT> to return
forbidden area
234
projected raster
crt faceplate border
phosphor border
233