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My Samsung ln46a650 won't turn off or inputs from remote or from tv itself. The light on the tv shows me its reading the remote so why wont it shut off the tv or even on the tv itself...
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Rob, check the power board. It should look similar than the one in the image. Check for anything odd looking. Post some images of your board with your question. Use this guide to help you with that. Just make sure that yuor set is disconnected and that you don't poke around the components with your fingers, Capacitors will hold a charge, even when the set is unplugged, and may giving you a shocking experience.
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After turning it off, in few minutes it turns on
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Assumming its not a universal remote that has forgot the code or week Battary check the standby voltage on main logic and look at the plugs on that board there marked what voltage they should have if there all correct then its your main logic ( I'm betting that's what it is )
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My Samsung tv says to Press and Hold the power button to turn on or off so just trying to clear this up !
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9 Kommentare
Rob, possible bad relay, bad caps etc. What have you checked? Have you opened the back and take a look at the power board?
von oldturkey03
I have opened the back... but i can't say i know what I'm looking at oldturkey03
von Rob
What happens when you pull the power altogether (unplug)?
von David Keldsen
It powers up after plugging it back to power source. It reads the remote and responds to (on tv buttons). BUT after awhile the problem comes back. I cannot figure out what the source of the problem is.
von Rob
I agree with oldturkey (and I am never going to catch up to him!): post pictures. That said, works and then eventually fails smells like a failed capacitor, or bad / cracked solder joint or trace. Rationale: the components that are time or heat sensitivity tend to be those.
In the meantime, you have also effectively found a work-around: put a switch (like a power bar) and turn it on before you want to use it. Not a bad idea from a power-savings and safety perspective, although less convenient.
von David Keldsen
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