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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 disk
to move the raster.
CAUTION
It is necessary to look
into the lenses to
perform these adjust-
ments. To avoid eye
discomfort
looking into the lenses,
reduce the contrast
and gradually increase
the brightness level
until the raster be-
comes visible on the
face of the CRT.
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.
To start the adjustment, use the arrow keys to highlight Raster shift and press
ENTER to display the coarse shift menu. Select 'Green horizontal' and adjust for
correct raster position in horizontal direction on the phosphor.
Continue with 'Green vertical', then with 'Red vertical' and with 'Bleu vertical' until
the rasters of the 3 tubes correctly centered on the phosphor.
8-14
RANDOM ACCESS ADJUSTMENT MODE
while
forb idden area
G E O M E T R Y
H P H A S E
R A S T E R S H I F T
LE FT - R I G H T (E - W )
TO P - B O TT O M ( N - S )
H S I Z E
V LI N E A R I T Y
V S I Z E
B L A N K I N G
Selec t w ith
t h en < E N TE R >
C O A R S E S H I F T
< E X I T> t o ret urn
G R E E N H O R I Z O N T A L
G R E E N V E R TI C A L
R E D V E R T I C A L
B L U E V E R TI C A L
Sel ect with
or
< E N TE R > t o ac c ept
< E X IT> t o ret urn
projected raster
crt faceplate border
ph os ph or b or de r
R5975238 BARCOVISION 701 MULTIMEDIA 070497
or
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