Tv powers off shortly after turning on
Hi there, not sure if you could help me with my TV but I have a Vizio 55", model number M500SV. The TV will turn on displays the Vizio logo then does a quick flicker and then displays for me to set up my TV signal, when I go through the options to choose signal I select cable then cable device, then once I begin scan the TV powers off by itself. And before I restored the TV's defaults whenever I opened the menu it loaded extremely slow, and using the directional arrows either way there is a long delay so any information you have would be much appreciated, thank you.
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