I have a pcs-4000 with the tone board and the guy I got it from wasn't sure the slide on wires were in the right place. It has two wires going to the board,one black and one white. I see three possibe points they could go onto. Two of them are on the edge of the board just abobe the dip switches. Could someone send me a pic or a diagram on how this goes? Thanks and 73 KC8SSG