I finally got my Volcano running, but I can't get any playfield sounds. The Speech works (although I'm not sure it's 100 percent). I did all of the ground modifications and I am getting the correct voltages at the sound board connector. The volume knob works in the cabinet, as well as the potentiometers on the sound board. This is my first System 80 so I'm not sure how everything works just yet. The test button on the board works, but it sounds like it says "fail" after it runs though a long, variable, continuous sound. Is there a DIP switch setting I am missing or something else obvious? Game play seems fine.