The Vizio does not have a picture tube like the older models have. It is most likely a bad control board. The Vizio support number is *****(###) ###-####
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Hello, This is Aric a different Expert. Without knowing what model we're dealing with (LED, LCD, Plasma, etc.), nobody out there can say it's a "control board"- or any other board. There's lots of things that could cause this. If you want to actually get to the root of the matter- reply back here to let me know if you can see my reply.