Hey guys and gals - Recently a buddy of mine loaned our band an old 1973 or '74 Yamaha PM-700 12 channel board. He said last time he used it (a year or so ago) it worked fine and it's been in storage since then. We plugged it in and got power (The VU Meters lit up). However, when I hook a mic up to any of the channel inputs (I've tried them all) I can't get sound out. I've tried plugging in headphones and I can hear clicks through the headphones when I change certain settings and when it powers up. I see on the back it has a fuse, but other than that I'm not sure why it wouldn't be working unless the entire channel strip crapped out. I've looked over the manual and didn't see anything obvious, I have a feeling that it may work and I am just stupidly over looking something. I've been known to do that on occasion. Any advice/comments/suggestions would be greatly appreciated as we would love to use this.