Microwave Has No Lights, Dead

:confused: MY JENN-AIR MODEL JMV8208AAS STOP WORKING, NO LIGHTS OR CONTROLS AT ALL. OUTLET HAS POWER, FUSE IS GOOD, I HAVE POWER TO THE SMALL BLACK WIRE IN THE CONNECTOR AT THE BOTTOM OF THE BOARD. FOUND A BURNED SPOT ON THE BOARD FOR THE PINS FOR THE SMALL BLACK SQUARE LOCATED JUST UP AND TO THE LEFT OF THE THREE PIN RED CONNECTOR. SO I ORDERED A NEW CONTROL BOARD AND STILL NOTHING. RECHECKED POWER AND I HAVE 118V EACH SIDE OF THE FUSE, 118V AT THE BLACK WIRE - PIN 2 ON THE WHITE CONNECTOR AT THE BOTTOM OF THE BOARD. THE BOARD I RECEIVED IS DIFFERENT, OLD ONE WAS TWO PIECES (TOP PIECE HAS THE BURN MARK), NEW BOARD IS ONE PIECE. ANY HELP WOULD BE APPRECIATED.