As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENTERTAINMENT SYSTEM MADE A POPPING NOISE THEN WENT BLANK AT ROW 9, SEATS ABCDEF. SLIGHT ELECTRICAL ODOR NOTICED. THE AIRCRAFT WAS GROUNDED. REPLACED QUAD SEAT ELECTRONICS BOX AT SEAT 8ABC IAW AMM 44-24-32. SECURED THE CONNECTOR J9 OF QSEB AT SEAT 8DEF. PERFORMED ALL MONITOR FUNCTIONAL CHECKS IAW ALL AMM 44-21-00. NO DEFECTS NOTED.