Pro 3 is controlling volume on connected synth - 5 pin DIN.

Pro 3 is controlling volume on connected synth - 5 pin DIN.
« on: December 03, 2020, 12:46:39 PM »
I can't get my Pro 3 set to where the volume control does not affect other synths it is MIDI'd up to.  Currently it's a Korg M3.  I recall my OB6 did the same thing when I got it but I fixed it, just can't remember how...
What is the combination of settings to where my Pro 3 will act as a midi master keyboard (notes, pitch bend, velocity, aftertouch) but NOT as a volume controller. I also have MIDI clocking working fine from the P3 out.  I just need old school separate volume knobs for each synth.  Any ideas?  Like I said, I corrected this anomaly on my OB6.  Everything is connected 5 pin DIN.  I'm old.
Thanks!