Looks like you have been taken care of. I also need some help, new to PINSIDE and have a Data East Star Trek 25th Anniversary pinball machine. It to is is in excellent condition. I have noticed that my sound seems to be distorted at times, and others it sound like a weird humming sound in the back ground. My volume control works but is not smooth in the increase or decrease in volume. My sound finally cut off the other day, and although I liked not having the sound issue anymore, i miss not having sound at all. Can someone help with advice?