> Dieter. I successfully changed the A-190-2 Q1 resistor by placing
> a BC547B transistor and now the gate is working. But I think that
> the CV V/V output is not working. Is there any piece I can
> replace to fix this
>
> Thank you,
>
> Sidney

Probably not only the transistor has been destroyed but other parts too. It
is difficult to say which parts may be affected. You will have to replace
one integrated circuit after the other to find out which is defective too. I
think it is better to send back the module for repair to the dealer where
you purchased the unit.

Best wishes
Dieter Doepfer