Oberheim Ob-8 Envelope offset Calibration

yetipur

New member
Hello out there,
I have been trying to calibrate an OB-8 that I picked up, and I got through most of it pretty easily, except for the envelope offset calibration part. The cal. instructions say to connect a voltmeter to a certain pin on a micro chip and get a reading from it then adjust using the upper and lower buttons on the modulation panel till you get a 0.000 reading. Well I can't seem to get my volt meter to go under 1.862. It starts at about 2.450 and goes down, but never to 0.000. The decay is okay on the upper 4 voices, but not on the lower 4. it seems to be set to a faster cut off time. Sorry so complicated. Anybody out there know what the heck I'm even talking about, and if so can you please help. thanks.
 
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