A Friend built me a "Core" board, with 4 DIN and 4 DOUT smaller boards. I am looking for the schematic for this board, to see if I can possibly connect some POTS to the board as well. I am also looking for the circuit diagram of these boards to see how to connect everything. When I search for MBHP CORE V3, I don't see the diagram for this board, I see something else. Please help me locate the information and circuit diagram / schematic, so that I know what to connect where. Thank you in advance. Regards, Brian.