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Troubleshooting Symptom Charts/Video
(Continued)
- 6
Video
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Flashing or wavy
screen or monitor
emits high-pitched
noise
Replace analog board.
Raster size too short/
tall or narrow/wide
1 Adjust horizontal or vertical size control. Refer to
Adjustments chapter.
2 Replace analog board.
Linearity bad (size of
text/graphics differs
at top, bottom, or
sides of screen)
1 Perform video adjustments. Refer to “Video” in Adjustments
chapter.
2 Replace analog board.