What was found
CLT FLT 1822, MIA TO CLT - DURING CRUISE, THE CABIN CREW NOTICED AN ELECTRICAL ODOR. THE PASSENGER ENTERTAINMENT AND VIDEO EQUIPMENT WERE SHUT DOWN, AS WELL AS POWER TO THE SEATS. THE ODOR WENT AWAY, BUT WAS NOTICED AGAIN DURING THE APPROACH TO CLT. THE FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE VIDEO SYSTEM CONTROL UNIT. OK FOR SERVICE.