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Text File | 1994-02-10 | 966 b | 28 lines | [TEXT/GEOL] |
- Apple Monitors: Nearby Interference can Cause Horizontal Lines
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- Article Created: 14 June 1991
- Article Last Reviewed:
- Article Last Updated:
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- TOPIC -----------------------------------------------------------
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- Why is there a horizontal scan line that keeps cycling across my 12-inch
- color monitor screen?
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- DISCUSSION -------------------------------------------------------
-
- The line you are seeing is caused by a 60Hz noise somewhere near the
- monitor. The horizontal scan rate of the monitor is 60.15Hz so it is very
- susceptible to external noise in the 60Hz area. The only solution is to
- find the source of the noise and move it or the monitor. The noise could
- be from a lamp or anything else plugged into a nearby outlet.
-
- You may also want to try turning the monitor in different directions to see if
- things improve at all. The interference may change due to magnetic fields
- regarding the north and south poles.
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- Copyright 1991 Apple Computer, Inc.
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