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Installation adjustment mode
8-3
5975996 BARCOGRAPHICS 808s 241197
Raster Centering
The raster must be centered on the CRT faceplate of each tube,
therefore, it is necessary to look into the lenses.
Caution : To avoid eye discomfort while performing these adjust-
ments, reduce the contrast and gradually increase the brightness
level until the raster becomes visible behind the image.
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.
Press the <ENTER> key to display the raster on the green CRT.
Look into the green lens and shift the raster with the control stick until
it is centered in the middle of the CRT faceplate.
Press the <ENTER> key to activate the raster on the Red CRT
faceplate.
Shift the Red raster with the control stick until the raster is centered
on the CRT faceplate.
Press the <ENTER> key to activate the raster on the Blue CRT
faceplate.
Shift the Blue raster with the joy stick until the raster is centered on the
CRT faceplate.
Press the <ENTER> key to continue with the CRT projection angle
adjustment.
Press the <EXIT> key to return to Optical focusing.
Press the <ADJUST> key to return to Operational mode.
<ENTER> to continue
<EXIT> to return
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
Correct raster position
Wrong raster position
Forbidden area
Projected raster
CRT faceplate border
Phosphor area