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screen randomly goes black, then comes back?

my vizio tv is quite old. i would sat about 5 or maybe 6 years. its a 42 inch smart tv. its always worked great up until about 2 weeks ago i noticed that when i was playing PS4 the screen went black for maybe 2-3 seconds then came back on. in this time i could still hear the sound, but the picture went black. it only does it once in a while. so at this point its not a huge problem, but id like to repair it before it gets really bad.

does anyone know what causes this and what parts i would need to repair it?

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This might not be a problem with the tv, it could be more or less the PlayStation or even the cable that you used causing the problem, I'd suggest starting with getting a new HDMI cable, if that seems not to work, then look at the teardown guide and make sure everything looks in place, and even look in the port, make sure there's nothing odd looking inside of it (TV and Playstation).

Playstation 4 Teardown- PlayStation 4 Teardown

Playstation 4 Slim teardown- PlayStation 4 Slim Teardown

Playstation 4 Pro Teardown- PlayStation 4 Pro Teardown

Imagem de PlayStation 4

Guia

PlayStation 4 Teardown

Difficulty:

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Imagem de PlayStation 4 Pro

Guia

PlayStation 4 Pro Teardown

Difficulty:

Moderado

Imagem de PlayStation 4 Slim

Guia

PlayStation 4 Slim Teardown

Difficulty:

Moderado

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well i also have my desktop computer connected to the tv via HDMI cable. and i have noticed the problem while watching youtube on the computer as well.

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Do you use the same HDMI Cable for both?

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no i do not, i have separate cords and they are in different ports.

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definitely a Problem with the TV, More then likely something wrong with the board/Ports themselves, This isn't my field of expertise, Phones and tablets are. I'll look around though!

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I have this exact issue with my 55” vizio that is about 5 or 6 years old and it happens with everything!! Cable TV, Xbox, etc. I’ve tried changing HDMI cords because that seems to be everyone’s answer to this problem but that just doesn’t work. It’s driving me nuts I don’t know how to fix it. I’m about to just buy a whole new TV.

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One of the responses to my complaint said the power board needs replacing. I have not yet looked how much the part would cost, but will before Monday. If the price is reasonable, I’ll replace it myself, unless the manyfacturer is willing to do it for free.

Update (01/05/2019)

I also got a procedure from Vizio via Text message:

“Let's try a power cycle.

-Power off and unplug the TV

-Press and hold the power button for 20 seconds

-Plug the power in

-Power on the TV”

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