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Hi: My Magnavox flat screen turns on and off. It also makes a high pitch noise and then there is no sound and it also shuts off. Is it worth fixing?

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Hello, what's the model or size of screen for the magnavox, the high pitch noise could be an audio power amp starting to get intermittent, and the power on/off could be due to the over current sensor circuit detecting the audio problem. Depending on the model number you would have a seperate power, audio and signal board in the TV. If he TV is 27" or smaller all these circuits are part of a mother board.

Posted on Jul 28, 2010

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