My Magnavox tv is about 5 years old. When we turn it on the screen is blank. A soft high pitched sound comes out of it. The green "on" light blinks on and off. Any ideas on what is happening and why it won't turn on?

You have a bad eeprom. Very common problem for this TV. The replacement eeprom [location, IC002, on the Tv board] is dependent on which microprocessor [location, IC001, on the TV board] and which stereo decoder [IC 1001] are present on the board. See if IC002 has a color mark on it. red, yellow, green..etc. Or give me the numbers on the actual IC 001 and Ic1001. For example IC 001[ microprocessor] might beMCU A22V01-TO and IC 1001 [stereo decoder] MSP3440. Take this info to a TV tech if you cannot repair this TV yourself. Thanks for asking and give me a High Five of hands!

The FBT-the Flyback transformer is the problems.The big block of plastic with a red wire with a black cap hook to a crt-tv tube.The part the FBT-not giving high voltage anymore,it dead.Change the FBT-the high voltage power.Power will come back,than ur tv have power again.