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Troubleshooting Symptom Charts/Video - 12
Raster not centered 1 Adjust horizontal or vertical shift control. Refer to
Adjustments chapter.
2 Refer to “First Checklist” in Troubleshooting chapter.
3 Install monitor-adjustment cable and use on-screen video
adjustment controls to center raster. If centering range is
insufficient, change the setting of switch SW701
(three-position switch).
Screen has white
areas with blotches of
color
1 Refer to “First Checklist” in Troubleshooting chapter.
2 Because this purity problem can be caused by magnetic
fields, move unit to another location.
3 Degauss display with manual degaussing coil. (Degaussing
coils can be purchased at most major electronic parts
stores.)