Doepfer

hello shm,
i have forwarded your email to dieter,so he will be
answering about your problem tommorow.
bakis.





--- shm1400 <shm14@hotmail.com> 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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