As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING PRE-DEPARTURE CHECK, ON THE GROUND, BURN SMELL WAS NOTICED FROM RT ECAM SYSTEM. DISPLAY UNIT WAS REMOVED AND INSPECTED. NO FAULT WAS FOUND AND SYSTEM WAS DEACTIVATED UNDER MEL. UNIT WAS REPLACED AT THE NEXT STATION. UNIT WAS SENT TO THE OEM FOR INVESTIGATION.