A B737-200 DIVERTED DUE TO #1 GENERATOR FAILURE; SMOKE IN CABIN AND CABIN PRESSURIZATION IN AUTO.

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ON OCT/XX/96 I WAS TOLD TO MEET ACFT (ENRTE FROM YYY TO LGA) WHEN IT ARRIVED BECAUSE THERE WAS AN MEL PLACED ON THE #1 GENERATOR IN A NON COMPANY MAINT STATION. I WAS ASKED TO PLACE THE PROPER PLACARDS ON THE LOGBOOK. WHEN I MET THE CREW; THE CAPT INFORMED ME THAT WHILE FLYING INTO YYY; THE #1 GENERATOR WAS LOST; AND SEVERAL BREAKERS POPPED. I RECALL HIM SAYING THE #1 THRUST REVERSER; HYD PUMP CIRCUIT BREAKERS; AND FUEL PUMP CIRCUIT BREAKERS. HE ALSO INFORMED ME THAT THE NON COMPANY PERSONNEL PLACED THE GENERATOR SYS ON MEL AS PER THE MAINT CTLR; BUT DIDN'T RESET THE CIRCUIT BREAKER FOR THE #1 THRUST REVERSER. HE INFORMED ME THAT THE NORMAL EQUIP COOLING FAN WAS NOT WORKING AS WELL. I INVESTIGATED AND FOUND THE CIRCUIT BREAKER POPPED. I THEN CHKED ALL THE CIRCUIT BREAKERS TO MAKE SURE NO OTHERS WERE TRIPPED AND FOUND THE #1 NORMAL HYD PUMP CIRCUIT BREAKER POPPED. IT SEEMS THESE CIRCUIT BREAKERS WERE NEVER RESET FROM THE OTHER STATION. I RESET THEM AND THOSE SYS OPERATED NORMAL. THERE WAS A CONCERN. I INFORMED MY LEAD THAT THERE SEEMS TO BE A LARGER PROB BECAUSE SEVERAL CIRCUIT BREAKERS POPPED AND THE #1 THRUST REVERSER WAS NEVER RESET. THERE IS NO RELIEF UNDER AN MEL FOR A THRUST REVERSER BEING INOP. THE LEAD IN TURN SET UP A DELAY. I DID SOME RESEARCH TO SEE IF THERE WAS ANY HISTORY ON THE PROB AND ON MAINT MANUAL TROUBLESHOOTING PROCS; BUT BECAUSE OF IT BEING DURING THE OPERATING DAY; THE TIME IS LIMITED; AND UNDER SUGGESTION OF THE MAINT CTLR; WE TRIED REPLACING THE #1 GENERATOR CTL UNIT. WITH ALL CIRCUIT BREAKERS RESET WE RAN THE #1 ENG AND TESTED THE GENERATOR AND CTL CIRCUITS TO VERIFY THE PROB; BUT COULD NOT VERIFY ANY FAULT -- SYS WAS OPERATING NORMAL. ON THE PREMISE THAT IT WAS AN INTERMITTENT FAULT (BECAUSE NO HISTORY AND UNABLE TO DUPLICATE) WE REPLACED THE #1 GENERATOR CTL UNIT. WE RAN THE #1 ENG AGAIN; PLACED A HVY LOAD ON THE SYS AND PERFORMED THE PROCS AS PER MAINT MANUAL. THERE WERE NO DEFECTS NOTED. I COMPLETED THE PAPERWORK AND RELEASED THE ACFT FOR SVC. ON THE OUTBOUND LEG; ZZZ-WWW; THE ACFT DIVERTED TO VVV DUE TO AN AUTO CABIN PRESSURE FAULT AND SMOKE IN THE CABIN; ACCOMPANIED BY A TRIPPED #1 GENERATOR.