Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!tut.cis.ohio-state.edu!att!dptg!lzaz!hcj
From: hcj@lzaz.ATT.COM (HC Johnson)
Newsgroups: comp.sys.atari.st
Subject: Re: Noisy 1040st??!!
Summary: power supply in inside 1040st, and its unhappy
Message-ID: <867@lzaz.ATT.COM>
Date: 27 Nov 89 17:56:16 GMT
References: <1989Nov23.031757.9434@aucs.uucp>
Distribution: na
Organization: AT&T ISL Lincroft NJ USA
Lines: 14

In article <1989Nov23.031757.9434@aucs.uucp>, 880139h@aucs.uucp (Rob Hutten) writes:
> 
>     My 1040st buzzes.   It's not the monitor, it definitly comes from the
> machine itself.  It's a real highpitched whiney buzz that seems to come

The power supply is inside the 1040st.  Its probably a switching unit
and either the transformer laminations are loosining up or its dieing.

good luck

Howard C. Johnson
ATT Bell Labs
att!lzaz!hcj
hcj@lzaz.att.com