Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!bionet!ig!ames!ncar!noao!asuvax!mcdphx!teroach.UUCP!stan
From: stan@teroach.UUCP (Stan Fisher)
Newsgroups: comp.sys.amiga
Subject: Re: High pitch noise from 1084
Message-ID: <10710@mcdphx.phx.mcd.mot.com>
Date: 12 Apr 89 15:32:28 GMT
References: <1763@aucs.UUCP> <42920faa.f231@fract.engin.umich.edu> <11474@s.ms.uky.edu>
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Reply-To: stan@teroach.UUCP (Stan Fisher)
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Organization: Motorola Microcomputer Division, Tempe, Az.
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In article <11474@s.ms.uky.edu> sean@ms.uky.edu (Sean Casey) writes:
>It's the flyback transformer oscillating at a near ultrasonic frequency.
>A lot of them tend to do this after a while, I believe that something on
>the inside gets the tiniest bit loose.
>
>My solution is to whack the terminal on the side. I don't recommend
>you to it to yours.

Back..  wayyyyyy baaack when  ;')   I used to work on T.V.'s and
electrostatic copiers etc.  Anything that squealed (like flybacks,
coils etc.) we just drooled some super-glue down into the windings, 
if they were exposed (alot of flybacks are sealed up) and let it dry
good before turning it on again (oh yeah, turn it off first).  Of
course try tightening down any mounting hardware first.  The glue would
hold those little vibrating windings solid and... no more squeal!!!

DISCLAIMER:  If you try this, and it trashes your monitor, don't flame
             me !   All I know is, it worked wayyyyyy baaack when 8^)

-

             Stan Fisher        asuvax!mcdphx!teroach!stan
  Motorola Microcomputer Division, Tempe, Arizona -  (602) 438-3228