Elektor Formant Modular

Hi Formant guys,

I had a working LFO module in an old formant Ive been restoring, I
made a new panel, basically... it WAS working fine.

I needed it to be in my Blacet rack so, cos they are both +15 -15
machines, I wired on a blacet connector and plugged it into the
Blacet psw.. all 3 LED's flashed as they are supposed to so I
assumed it was all AOK... racked it up... but now when I try it, I
dont seem to be getting any waveform out of the sockets, even when I
patch it to a formant VCO.

Why could this be?? is there something different between the Formant
psu and the Blacet PSU???... that would make the LED's work but the
module.. not...??

I want to use it to sweep some Blacet CV'c, but can at a pinch
cpnnect it to the formant PSU again, just that it will be in a rack
that I DONT gig... as opposed to the one that I do...


Help??

mark