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.