Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!unmvax!pprg.unm.edu!hc!lll-winken!uunet!tektronix!midas!herbw
From: herbw@midas.STS.TEK.COM (Herb Weiner)
Newsgroups: comp.sys.mac
Subject: Re: Don't buy Hard disks from CMS, they
Summary: Power supply failures caused by bad capacitor; replace it yourself
Keywords: CMS, Power Supply, Bad Capacitor
Message-ID: <4149@midas.STS.TEK.COM>
Date: 23 Mar 89 20:39:30 GMT
References: <636@ndcheg.cheg.nd.edu> <76000361@p.cs.uiuc.edu> <920@circus.cme.nbs.gov> <12005@reed.UUCP>
Reply-To: herbw@midas.STS.TEK.COM (Herb Weiner)
Organization: Tektronix, Inc., Beaverton,  OR.
Lines: 8


The power supply in CMS drives contains a marginally-rated capacitor.  When it
fails, the drive dies - drive doesn't spin, lights don't light.  The capacitor
in question is a 1000uF, 16V black electrolytic capacitor, 1/2 inch in diameter
and 3/4 inch high.  Try replacing it with a 1000uF, 50V model.

Caution: If you don't know what you are doing, have a qualified technician
perform this work.