Thanks,
I did check the voltages to the module a couple of days ago and they were all within 0,2V of what they should be. I measured this at the connector, though I didn't check what the opamps were getting... But I'll do that today as soon as I get to the studio.
12ax7:
I have a soundcraft 6000 all hooked up and working as well so even if I don't get the Studer fully working, at least I can use it as a front end so I'm ok as far as the next session is concerned.
Here's the CR unit schematics, if you want pictures as well I can post them later today.