Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!att!alberta!calgary!cpsc!lauch
From: lauch@cpsc.ucalgary.ca (Christopher Lau)
Newsgroups: comp.sys.apple
Subject: Re: Weird monitor problem
Summary: whack!
Keywords: Smash!
Message-ID: <1550@cs-spool.calgary.UUCP>
Date: 23 Jun 89 17:04:43 GMT
References: <mailrus!ulowell!m2c!wpi!dseah@PURDUE.EDU> <8906211109.aa02636@SMOKE.BRL.MIL>
Sender: news@calgary.UUCP
Reply-To: lauch@vaxa.UUCP (Christopher Lau)
Organization: U. of Calgary, Calgary, Alberta, Canada
Lines: 9

I don't think it's a design flaw in the monitor..  a lot of monitors
regardless of brand do this..   I've got a Zenith ZVM-122 Amber monitor, and
it occasionally produces a high pitched whine which can be cured by smartly
whacking the monitor on the right side..  I've also experience the same
symptoms with my DataTrain DC600 on my PC compatible..  I think the whine
is related to resonance in the ferrite core of the flyback.. and is harmless
but annoying

Chris