What was found
FLT 1404 SFO-AUS DIVERTED TO SJC, ON CLIMBOUT THRU FL290 "TAT 1 FAIL" EICAS MESSAGE FOLLOWED BY AUTO THROTTLE DISCONNECTED THEN AUTOPILOT DISCONNECTED, A STRONG BURNED ELECTRICAL FUME SMELL. A/P AND A/T WOULD NOT RE-ENGAGE AND NO GUIDANCE FROM FLIGHT DIRECTORS EXCEPT FPA. EMERGENCY DECLARED WITH A DIVERSION TO SJC STRONG ELECTRICAL FUME SMELL THRU DESCENT AND LANDING. MX PERFORMED SMOKE & ABNORMAL SMELL CHECK REF FIM 21-20-00-810-801-A AND FOUND LT TAT ELECTRICAL CONNECTOR WAS BURNT, REPLACED REF SWPM 20-31-000. REMOVED AND REPLACED TAT SENSOR IAW AMM 34-15-02, OPS TEST ADS SYSTEM REF AMM TASK 34-15-00-710-801A. TEST PASSED.