You got the unit, turn it on, connect the audio and midi cable and don’t hear anything while pressing keys on your keyboard? Here are some first hints to get started:
There are four locations where the output volume can be influenced. The master volume doesn’t need any explanation – just turn it on. At the envelope section (the faders) you will find in the top left corner one called BIAS which basically bypasses the whole VCA section. The fader underneath called CV controls the envelope amount going into the VCA. In the filter section you have two input controls. For the start tune only the IN 1 into middle position*. Now comes the tricky part – the extra VCA section in the middle of the oscillators. When the MIX control is in middle position and the little black knobs around it are all turned counterclockwise you should hear nothing. The MIX control blends in OSC 1 or 2. If you want to hear both at the same time use the BIAS controls over it. Now you should hear something. Turn the knobs listen whats happening and try out some stuff. Happy tweaking!
* The filter input can be overdriven pretty easily. The IN 2 is the ring modulated signal of both VCAs.