Samsung forum


Samsung TV turning off then back on

by Cowboys82x / February 9, 2018 10:58 AM PST

I have a series 5 5200 led tv that all of a sudden will turn off then back on randomly throughout the day. No pattern, it will happen totally random times. All the auto timers are off and my tv is plugged into the wall and not a protector. Any help is appreciated, thanks

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All Answers

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Very often not user serviceable.
by R. Proffitt Forum moderator / February 9, 2018 11:01 AM PST
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Samsung TV random power off/on
by ChrisCTR / February 9, 2018 5:53 PM PST

My Dad and I have the same model Samsung TV (probably not of the model Cowboys82x has) but my father's TV is the one that randomly turns off and back on, but happens seldom. It hasn't happened in quite some time now, so maybe it got fixed on its own?


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Fix for TV turning off and on
by lighthorse35 / February 10, 2018 10:05 AM PST

OK this is going to sound odd but it works. My neighbor had an LG that did the same thing and eventually would go to only the startup screen. I looked around for prices on the main motherboard and options to fix it. I then saw a fix that I did not really think would work but it did. I pulled out the main motherboard which has the HMDI connectors on it not the one with the power plug. Remove any plastic edge pieces on it and then put it on a piece of cardboard in a 385 degree oven for 10 minutes then let it cool and put it back in. What actually happens is solder melts at 360 so all you are doing is re-soldering all the connections. It works great and that TV is back to fully functioning. I noted comments from others that had tried it on other LG and Samsung TVs with the same success rate. Since they eliminated lead from solder it appears that getting a cold solder joint error has become more common. I actually fixed two car remote starters the same way after both had stopped working.

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