Hello,

I'd like to know if it's possible to expand the A-110 VCO (v3) with a soft sync and linear fm input because I've found two placeholders for pins on the board.

You can find it ca. in the left upper corner on the main board (chip side) when the potentiometers knobs are pointing to you.

Does anybody perhaps also know for which purpose the AC/DC pins right beside are good for

Best wishes,
Ollie