Portamento or Glissando switch doesn't change the result. But?look below (we are on the S&H board outputs). One is terminal K3 and the other is K4, the one with the problem .. guess which one is!). I apologize for the quality of the signal detection, but I think it can be seen quite clearly.. I then checked the outputs 3 and 4 of the KAS board and they seem ok. So I hope the problem is right on the S&H. I am going to check that this is the case, I keep you updated hoping that it can also be useful to someone else.
