What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: AT TAKEOFF ROTATION, THE TAKE OFF CONFIGURATION WARNING HORN SOUNDED. THE HORN SILENCED SHORTLY AFTER, HOWEVER THE FLAPS WOULD NOT RESPOND HYDRAULICALLY TO FLAP HANDLE MOVEMENT. THE FLAPS REMAINED IN TAKE OFF SETTING (FLAPS 1). USED ELECTRIC ALTERNATE METHOD TO EXTEND TO FLAPS 15 FOR LANDING. AIRCRAFT DIVERTED TO AND LANDED SAFELY AT MIA. TROUBLESHOT SYSTEM, PER FIM 27-51-00 FOUND CONNECTOR D229 PIN 1 SHORTED INTERNALLY IN CONNECTOR. REMOVE AND REPLACED CONNECTOR. SYSTEM CHECK NORMAL, PER MM 27-58-01.