What was found
FLL - BURNING SMELL - FLT 0888 - EN ROUTE FROM LAS TO FLL THE NR 1 MULTI PURPOSE CONTROL DISPLAY UNIT (MCDU) WENT BLANK, AT THE SAME TIME NOTICED AN ELECTRICAL BURNING SMELL THAT LASTED APPROXIMATELY TWO MINUTES. CONTRACT MAINTENANCE AT FLL INSPECTED THE NR 1 MCDU AND FOUND THE UNIT SHORTED OUT, AIRCRAFT WIRING WAS FOUND TO BE GOOD. PLACED SYSTEM ON MEL 22-82-01, COND 1, LT MCDU INOPERATIVE. VENDOR TEARDOWN REPORT OF MDCU CONFIRMED FAILURE UNIT FOR HARDWARE FAULT. LVPS WAS FOUND DEFECTIVE WITH AN OPEN TRACE ON A11 E79 TO A11 A1-116. LVPS REPLACED, UNIT FUNCTIONAL TEST WAS GOOD.