Over the range Microwave Frididaire help

I have an over the range Microwave by Frigidaire. The Microwave itself works fine but the under light and exhaust fan stopped working. When I turned on the Light one day there was a pop and then the light and fan quit working. The touch controls still indicate that they are working but nothing happens. I am thinking this might be either a fuse somewhere or the control board is bad. any help would be appreciated.