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- Path: sparky!uunet!uscghq!lederman
- From: lederman@taney.uscghq.uscg.mil
- Newsgroups: comp.sys.mac.hardware
- Subject: Re: Magnetized Monitor = Junk ?
- Message-ID: <1993Jan5.120705.121@taney.uscghq.uscg.mil>
- Date: 5 Jan 93 12:07:05 EST
- References: <16B4D101F.LILMARA@YaleVM.YCC.Yale.Edu>
- Organization: United States Coast Guard
- Lines: 21
-
- > My adventurous daughter wanted to see if our beautiful 13" Trinitron monitor
- > was magnetic- she touched a moderately powerful magnet to the screen and it now
- > has 4 large, ugly blotches on it.
-
- Most monitors have a degaussing coil in them. Each time the
- monitor starts it clears out any magnetic field in the shadow
- mask. With a very strong magnetic field in the mask (from an
- outside magnet) it may take a while to clear.
-
- To clear it faster, look to see if your monitor has a
- degaussing switch. Some monitors do, some don't. If yours does,
- press it (or do what the manual says to do with it).
-
- To clear it even faster, someone who does TV repair could wave
- an external degaussing coil in front of the monitor to wipe out
- the magnetic field (don't get this close to floppies, headphones,
- speakers with unshielded magnets, casette tapes, etc.).
-
- Or if you have a bulk tape eraser which runs off of line AC
- power, it will work just as well as a degaussing coil (I know,
- I've used both).
-