> if i take out JP3 it works fine in the front cv but if its in
> then the pitch in the front goes crazy again ar they adding
> together do i need to take out the jumper every time to use the font cv
> thanks in advance

If the CV behaviour changes if you add JP3 there is probably another CV
transmitter connected to the same bus (e.g. A-185-1/2, A-190-1). Pay
attenation that one CV/Gate transmitter is allowed for each bus board.

Best wishes
Dieter Doepfer