There should be a fuse at the end to the power cord, if you follow the cord into the TV where the cord is attached to the circuit board you should find a small glass tube with metal ends.(should be within 2 inches from end of cord. Chances are; if the TV is making a noise then it must be getting some power. might be resistor (cheap..) or transformer (expensive..) anyway good luck hope you find the problem and make sure you unplugged the TV before you check the fuse
Jason Drolet, December 2005