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I have a plasma tv the power button goes on then off in a second does anyone have an answer why

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Hey Craig,
I've seen this common problem in several models of flat panel TV's, especially 4 to 5 year old Walmart Black Friday specials. The capacitors in the power supply dry out and fail, causing the power supply to fail. When you try to turn the TV on, the power supply refuses to start and the unit shuts off. This problem that the local (in Phoenix) Fry's Electronics sells a power supply capacitor replacement kit for several models of flat panels. If you are compelled to check it out, the units are typically easy to disassemble, and the power supply PCB (printed circuit board) is normally well marked.The caps are blue and/or yellow cylinders, mounted on end. Defective ones, in this use dry out, overheat, and swell up, causing the top to noticeably bulge out. Without knowing more details I would suggest that this is a most likely failure for your TV. Thanks for using fixya. I hope it helps. Dan

Posted on Nov 28, 2014

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