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6. Random Access Adjustment Mode
The Horizontal Phase Text box will be projected in the middle of the external image. A bar scale and a number indicator (between
0 and 100) on the screen give a visual indication of the horizontal phase adjustment.
Image 6-13
Horizontal Phase Text Box
2. If the raster shift is correctly adjusted, the H Phase text box is projected in the middle of the raster. At that moment, the "><" icon
indicates the middle of the raster.
Press the ← or → keys to adjust the H Phase "><" icon to coincide with the middle of the projected image.
3. Press EXIT to return to the Geometry menu.
6.5.4
Raster Shift Adjustment
W
ARNING
while looking into the lenses, reduce the contrast and gradually increase the brightness level until the raster
becomes visible on the face of the CRT.
What has to be done?
The raster of the separate colors must be centered both horizontally and vertically on the center of the CRT surface. To center the
raster, look into the lens of the respective color and use the cursor keys to move the raster.
RASTER POSITION
CRT phosphor width for the green color
11,5 cm (4.5 inch)
CRT Faceplate holder
Forbidden area
Phosphor area
Projected raster
Image 6-14
48
><
H PHASE
80
:
It is necessary to look into the lenses to perform these adjustments. To avoid eye discomfort
WRONG RASTER POSITIONS
R5976398 BARCOREALITY 909 SPLIT PACK 21/02/2003
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