I just called Fleetwood, and they told me there is fuse panel with a 20A fuse marked "Galley", next to the breaker panel. The rep told me the micro is routed through this fuse. I saw these fuses, but since they are automotive type, I didn't think they would supply power to anything that is AC. I found the fuse and unplugged it. It was not blown. When I plugged it back it, it sparked a little, indicating that it does indeed have power. At this point, I'm going to have to assume I have a dead microwave.
Thanks everyone.
Craig