unfortunately i have no way of measuring the voltages, but they were all plugged in separately.

there are 3 modules that work (cwejman filter, doepfer spring reverb & 138 dopfer mixer)

and three that do not (cwejman LFO & Oscillator and the doepfer 118 noise).

The 2 cwejman modules that are not working are both 80mA or more so i thought that
might be the problem though the 118 is only 20.

I tried connecting the ground from the bus board to the rails and that did nothing.

I does seem like a ground issue though since the noise module hums as do the non
working cwejman modules. Funny thing is that the spring reverb does not hum...

Thanks for the help!! would love to get this sorted out ASAP.

thanks,
--david


--- In Doepfer_a100@yahoogroups.com , Florian Anwander <Florian.Anwander@...>
wrote:

>
> Hi david
>
> > only a few modules work correctly, a few not at all and a few with a very bad ground

hum.

> Did you measure both voltages with one of the "bad" modules plugged in
>
> Did you check the modules separately one after the other, or did you
> plug in all at the same time If the latterm then try them separately.
>
> I do not know the non-Doepfer modules you mentioned, but maybe they rely
> on a connection frontplate -> electrical-ground (0Volts).
>
> Florian
>