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Vizio TV flashes blue with V logo briefly has picture no sound help

Hi i have Vizio EB00i-B1 and was working fine. Now when you turn it on the white light comes on for a few seconds the blue screen appears with the V logo and then goes blank. There is sound and if the room is dark enough you can see images on the screen. I tried holding power button for 30 seconds but thats all i have tried so far. I have some pictures of the boards but i don’t know which is which or what i might replace that may solve this problem. I also have another post on hear about a RCA 65”” that has similar problems but haven’t got any response to. Thanks.

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@vadertaz “if the room is dark enough you can see images on the screen.” indicates bad LED backlight. This could be related to the power board as well as the LED backlight strips. Measure the voltage from the power board to the LED and let us know what that voltage is. If the voltage is to low check the main board to ensure you have around 3.3V on the backlight enable. If you do it is your power board. If the voltage is high on the LED connector then it is your backlight strips.

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John CHAFTON さん、ありがとうございました!
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