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- Newsgroups: comp.sys.ibm.pc.hardware
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!darwin.sura.net!udel!rochester!galileo.cc.rochester.edu!uhura.cc.rochester.edu!mcia
- From: mcia@uhura.cc.rochester.edu (Mike Ciaraldi)
- Subject: Re: HELP! magnetised screen
- Message-ID: <1993Jan13.030556.16060@galileo.cc.rochester.edu>
- Sender: news@galileo.cc.rochester.edu
- Nntp-Posting-Host: uhura.cc.rochester.edu
- Organization: University of Rochester (Rochester, NY)
- References: <ah.726429974@dolphin.doc.ic.ac.uk>
- Date: Wed, 13 Jan 93 03:05:56 GMT
- Lines: 27
-
- In article <ah.726429974@dolphin.doc.ic.ac.uk> ah@doc.ic.ac.uk (Angelo Haritsis) writes:
- >A speaker magnet created a large blue (on white background) spot on my SVGA
- >colour monitor. How can I bring it back to normal - can I de-magnetise it
- >somehow ?
-
- I had a problem like this once, and we fixed it this way:
- (don't laugh)
-
- We took a bar magnet and attached it to the middle of a big rubber band.
- That is, I held the rubber band stretched between 2 fingers, then inserted
- the magnet perpendicular to the rubber band.
- Then I taped the magnet to the rubber band.
-
- I then wound the rubber up by rotating the magnet, held it about
- 6 inches from the front of the tube, and let go.
- As it unwound, it caused a rapidly-fluctuating magnetic field
- that demagnetized the screen.
- That got rid of most of the color distortion.
- Turning the monitor on and off caused the automatic degauss circuit to
- kick in, and eventually the monitor was OK.
-
- You could also try a degaussing coil...
-
- Mike Ciaraldi
- University of Rochester
- mcia@uhura.cc.rochester.edu
-
-