Barco DATA 708 - Manual (Page 26)

Installation Adjustments
7 - 6 5975987A BARCODATA 708 260597
Raster centering
The raster must be centered on the CRT screen surface 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 ENTER to display the raster on the green CRT.
Look into the green lens and shift the raster with the control disk until
it is centered in the middle of the CRT faceplate.
RASTER CENTERING
to continue
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
forbidden area
projected raster
crt faceplate border
phosphor border
correct raster position
wrong raster position
Press ENTER to activate the raster on the Red CRT faceplate.
Shift the raster with the control disk until the raster is centered in the
middle of the CRT faceplate.
Press ENTER to activate the raster on the Blue CRT faceplate.
Shift the blue raster with the control disk until the raster is centered
on the CRT faceplate.
Press ENTER to continue with the CRT projection angle adjustment
ENTER continues to CRT Projection angle Adjustment.
EXIT returns to Optical focusing.
ADJUST returns to operational mode.