Question Magnavox 55MV314X/F7 ON/OFF

Shanem21

Junior Member
Apr 26, 2019
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0
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TV powers up splash screen is OK then a buzz sound on the power board at the led driver section and it shuts off. Have replaced the power board, main board and ir control board. Can't find a service manual to determine what's up...hoping someone here can help with diagnosing the problem or where to get a service manual.