As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APPROX 1.5 HR AFTER TAKEOFF THE LT MCDU (FMS CDU) BECAME INOP (BLANK SCREEN / NO RED X) LT MCDU CB WAS NOT TRIPPED. APPROX 5-10 MINS LATER STARTED SMELLING SLIGHT ELECTRICAL ODOR WHICH GREW INTO A STRONG ELECTRICAL ODOR WITHIN 5 MIN. REMOVED AND REPLACED MFD CONTROL DISPLAY UNIT.