What was found
APPROXIMATELY 2HRS 30 MINUTES INTO FLIGHT, F/A CALLED AND REPORTED A BURNING ODOR AROUND ROW 9 IN CABIN, NO SMOKE. FURTHER INVESTIGATION REVEALED THAT THE IFE BOX UNDER SEAT 9E WAS VERY HOT AND THIS WAS PRODUCING THE ODOR. AFT RACK POWER WAS DISCONNECTED IAW QRH HEAT AND ODOR DISSIPATED, LIVE TV SYS; C/W ELECTRICAL ODOR CHECK IAW LTV AMM 23-39-00, 5000, STEP 10. FOUND SEAT TO SEAT CABLE AT 10R, BURNED. REPLACED SEAT TO SEAT CABLE AT 10-11R AND 10R XEB. OPS CHECK PERFORMED. OPS CHECK PASSED.