Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!mcsun!ukc!icdoc!syma!paulr
From: paulr@syma.sussex.ac.uk (Paul T Russell)
Newsgroups: comp.sys.mac.comm
Subject: Re: U N C L E ! !
Message-ID: <3431@syma.sussex.ac.uk>
Date: 11 Sep 90 11:10:10 GMT
References: <69723.26E9C6F7@cmhgate.FIDONET.ORG>
Organization: University of Sussex
Lines: 39

From article <69723.26E9C6F7@cmhgate.FIDONET.ORG>, by Mark.Bryant@p1.f54.n382.z1.FIDONET.ORG (Mark Bryant):
> 
> PTR>  We bought a number of AppleFax modems about a year ago and they 
> PTR>  all seem to be failing about now. (A couple of them are still 
> PTR>  working)...
> 
> What exactly is happening?  Is the failure such that when you turn it
> on, the green light blinks briefly, then goes out?  If so, it's probably
> the power supply (that was what was wrong with mine).  I was able to 
> get my Apple dealer to replace the power supply (Apple is still supplying
> these as spare parts), and all is now well.
>  

The pattern seems to be as follows:

Modem dies after being switched on for a long time. Swicthing off
for a while cures problem.

Modem dies after about half an hour (usually during the transmission
of a large file :-().

Modem dies completely. Green light still on. No PSU problem. Just
dead modem.

On at least one of the modems I notice a crackling from the speaker
at switch on, which sounds like it might be a capacitor breaking down
or some such.

When I get a spare moment I'll pull one apart and see if I can do
anything with it. I believe there is some sort of piggy back
modem module in there so I guess I could try swapping those around.

//Paul

-- 
           Paul Russell, Department of Experimental Psychology
         University of Sussex, Falmer, Brighton BN1 9QG, England
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