Doepfer

Hi all

I've been having problems with the A-140 and A-143-2 when adjusting the sustain level while the ADSR is being gated.

The sustain level can be reduced but not increased. The A-141 works fine, so when I send it a gate I can manually adjust the sustain level which changes the output voltage up and down. The other two ADSR modules ONLY adjust the output voltage downwards.

Question:
Is there a mod to change the A-140 and A-143-2? Perhaps there's a diode that can be bypassed somewhere?

They are great envelopes and I don't want to have to get rid of them since they fit nicely into my live setup.

Thanks
Sean