Question about RCA Televison & Video

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I have a rca model led65g55r120q tv flickers and no sound

I left house for 2 hours and upon return had sound and no picture, turned off/on lost sound, disconnect power and reconnected, picture flashes and no sound, tv is 16 months old, how do i fix it

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  • John mullen Jan 12, 2017

    Well, if you've already swapped a Tcon, and it's still doing the same thing and you already have the back open I would get a replacement main board. Might be the power supply(?) but if you examine the boards very closely you might see a scorch mark or other visible sign that the magic smoke escaped :) Usually a capacitor, one of the connectors or even a fuse/fuse-link would be a weak spot. But once you're past two boards and 4+ hours of work it's time to think replacement; if this were a Panasonic Viera or other plasma display it'd be worth the effort but a badge engineered LED TV is almost a throw-a-way. No real way to tell if this chassis suffered from poor design or materials but considering all of the replacement parts available...

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Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electro-medical.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Posted on Jan 12, 2017

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  • Master
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Check all cables for loose connection, try another input for picture (DVD, BLu-Ray, etc). If none of the other inputs work then it's a panel problem (display) If one or more of the others work then it's a problem with either the tuner or the signal.

Posted on Jan 02, 2017

Testimonial: "done that, hooked up another tv it is fine, i replaced tcom board and no change still led flashes every 10 seconds"

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