Doepfer

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.