Monarchy SM-70 Pro won't power up

Following a recent move across town, my Monarcy SM-70 pro unit will not power up. There is no power light on the switch and, of course, no signal getting to my speakers. I've tried different power cords and outlets. I took off the hood and there aren't any loose wires. It was functioning perfectly before a couple short rides in my car, so I'm not sure what could have happened. Any suggestions? I live in Madison, Wisconsin. Is there a recommended repair shop near me? Thanks for your help.