Hello Lugia,

Thanks for the help.

Unfortunatly, still not luck.

The only sound i can still hear is the oscillator when i turn up the vca initial level.
If the initial vca level is turned off (or turned up until i can hear the oscillator) i can't get any sounds of it it via external sources.

Is there something broken?

Any ideas?
Thanks a lot in advance,
Regards
Matteo