As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE AT FL400, PILOTS PFD WENT BLANK & CHECK PFD 1 ANNUNCIATOR ILLUMINATED, FOLLOWED BY A STRONG ELEC BURNING SMELL. CREW FOLLOWED CHECKLIST FOR FIRE & SMOKE, DECLARED AN EMER & DIVERTED. LANDING WAS UNEVENTFUL. ACFT WAS MET BY FIRE RESCUE PERSONNEL. TROUBLE SHOT THE DISCREPANCY TO A FAULT PILOT PFD. THE DISPLAY UNIT WAS REPLACED WITH NO DEFECTS NOTED. ACFT WAS RETURNED TO SERVICE.