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Doepfer

Index last updated: 2026-04-29 00:15 UTC

Message

Re: MELT DOWN!

2004-02-15 by shm1400

Thank you, Bakis.

By the way, I was just listening to your "Different Pathways" track 
today.  There is a lot of very subtle stuff happening in there that 
takes more than one listen to get. Great track.  I am definitely 
going to pick up the Insight CD.


--- In Doepfer_a100@yahoogroups.com, Bakis Sirros 
<synth_freak_2000@y...> wrote:
> hello shm,
> i have forwarded your email to dieter,so he will be
> answering about your problem tommorow.
> bakis.
> 
> 
> 
> 
> 
> --- shm1400 <shm14@h...> wrote:
> > Thanks, Tim. That thread was very helpful.  Seems
> > like there were 
> > two problems discussed:  Cases built in 1998 and
> > before with EMC 
> > filters that occassionaly melt after 5 years of
> > service or so.  This 
> > was the problem that started the thread.  Then there
> > was at least 
> > one person who had a transformer melt, and the
> > explanation was that 
> > it was just a dodgy transformer.  
> > 
> > My problem is more like the second one, since I have
> > no EMC filter 
> > and the gooey stuff came out of the transformer
> > itself.  The power 
> > supply is only about 8 months old. I wonder how long
> > the warranty 
> > is. Probably doesn't matter, since I have probably
> > voided it 
> > anyway.  M biggest concern is that it doesn't happen
> > again.
> > 
> > 
> > --- In Doepfer_a100@yahoogroups.com, "Tim
> > Stinchcombe" 
> > <timothy@t...> wrote:
> > > Hi shm,
> > > 
> > > Check out message 3379 etc. in the archives. From
> > memory, this is 
> > a 
> > > known problem that may occur on the older type
> > power supplies - 
> > > somewhere in that thread I think there is an
> > explanation of it 
> > from 
> > > Dieter.
> > > 
> > > Tim
> > > 
> > > --- In Doepfer_a100@yahoogroups.com, "shm1400"
> > <shm14@h...> wrote:
> > > > Yesterday, I left my studio for about half an
> > hour, and when I 
> > > > returned, one of my Doepfer cases had blown its
> > fuse and there 
> > was 
> > > a 
> > > > burning smell in the air.  
> > > > 
> > > > When I looked at the PSU, there was some black
> > plastic like 
> > > > substance all around the power transformer, and
> > it had dripped 
> > down 
> > > > onto one of the bus boards. At a guess, I'd say
> > this may be a 
> > bad 
> > > > thing.
> > > > 
> > > > According to my numbers, I had about 635ma worth
> > of modules in 
> > that 
> > > > case. All were Doepfer, except for one Blacet
> > Mixer/Processor. 
> > > > 
> > > > Here is my first question: My 635ma calculation
> > is based on 
> > rating 
> > > > the Blacet module at 35ma.  The Blacet website
> > says it 
> > requires "+/-
> > > > 35 ma." The ratings for Doepfer modules don't
> > include this "+/-" 
> > > > before their power ratings. Is "+/- 35ma" the
> > same as "35ma" or 
> > > > should I have doubled the Blacet power
> > consumption when I added 
> > up 
> > > > the numbers?
> > > > 
> > > > Also:  Any ideas on why the fuse didn't blow
> > before the 
> > transformer 
> > > > melted?  I had a 250ma fuse and I am running on
> > 115v.
> > > > 
> > > > Anybody else ever have this happen?  Any advice?
> > A replacement 
> > > power 
> > > > supply isn't a whole lot of money, but I don't
> > want to just fry 
> > > > another transformer.
> > 
> > 
> 
> 
> =====
> Bakis Siros
> Parallel Worlds / Polariton
> Athens-Greece
> [Doepfer_a100] group owner
> http://www.rubber.gr
> http://www.shimarecords.co.uk
> http://www.ward12.com
> 
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