As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE CREW POWERED UP THE ACFT TO GET THEIR PREFLIGHT CHECK DONE. A FEW SECONDS AFTER POWER UP, THE DU NR 2 WENT BLANK AND A STRONG ELECTRICAL ODOR WENT THRU THE COCKPIT. PROBLEM, TROUBLESHOT TO THE DISPLAY UNIT ITSELF. A TECH WAS DISPATCHED TO REPOSITION THE UNIT IN NR 3 POSITION SO THE ACFT COULD BE RETURN TO SERVICE UNDER COMPANY MEL.