What was found
IN CRUISE PA BUTTON WAS EXTREMELY HOT AND SMOKING WITH ELECTRICAL SMELL DIVERTED TO BHM. PASSENGER ADDRESS SYSTEM, ENROUTE TO JAN, ACFT DIVERTED DUE TO MAINTENANCE EMERGENCY ACTIONS. R & R INTERPHONE CONTROL UNIT IAW AMM 23-31-07, REF IPC 23-31-07, ITEM 5, OPS TEST GOOD DEFER CLEARED.