Samsung Smart TV Cuts on and off after screen glitch
I have a Samsung UN55ES7500F smart TV. Over the past couple of months it has started cutting off and back on on its own. Every time it does so, it is preceded by a couple seconds of a screen glitch for a few seconds, usually colored lines or a solid color. It then cuts off and cuts back on and the screen is fine. First it happened once a day or so and now it does it constantly, occasionally fixing itself for a few hours. I'm using another TV now, and have ordered a new power supply board in hopes of that fixing it, but it hasn't arrived. I've noticed if it's been working for a while, it usually starts doing it again if a button is pressed on the remote, volume or input usually. A coworker said he thinks it may be a different hardware problem because of the accompanying screen glitch, but the screen isn't otherwise damaged and once it powers back on the screen is fine, at least until the next power cycle. Any ideas?
EDIT: I should add I unplug the TV to get it to stop. It always powers on after cutting off. There is a (green I think) light that flashes when turning on and when pressing a button. I assume it's the standby light. The back right of the TV gets quite hot, where I believe the power supply board sits. At first I thought keeping it cool was fixing the problem, like with a fan, but it may have been a placebo because now that doesn't work. That's all the info I can think of.
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5 Comments
@jtooms4470 "The back right of the TV gets quite hot" could be the issue. you will have to unplug your set and remove the back cover. Then take a look at your power supply. Check for any obvious damaged components like domed, leaking caps etc. Post some images of your boards with your question. That way we can see what you see. Use this guide for that Adding images to an existing question
by oldturkey03
@oldturkey03 I will do that, thank you. I've already ordered what is supposedly a new power supply board, and so I'm really hoping that's the issue. I'm not expecting it until the middle of next week though, and since then my coworker has me doubting if it's a power board issue at all, because of the accompanying screen glitch. I'll take a look at it tonight and post some pictures.
by John T
Was there ever a resolution to this problem? I'm having the same issue with my Samsung TV.
by Jack
I have the same problem. I replaced main board, power supply and still same issue. I have a Samsung QN82Q60RAFXZA. Anyone have any solutions. Could it be the IR sensor on the tv for the remote?
by cccccccortez
sources say it’s the LCD SCREEN itself
WEIRD how SO MANY SAMSUNGS have this PROBLEM
LEMON
by Jeff Markus