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How can I repair my LGSMART TV?

LGTV Model 42LN5700-UH LED Smart tv Oct 2013 Mexico. Red light on when plugged in, red light flashes twice when turned on then goes out, during initial two red flashes :LG Life's Good" flashes bright and clear in the screen center (12"X 6") for a fraction of a second then screen goes black. Lashlight test indicates there is an image on the screen unlit. Sound is also on while screen is black. I changed TCON Board and Power Supply Board and all conditions remain the same as before. What could be the the problem?

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Hi sounds like failed led or leds in the panel, thanks

shaun

Posted on Mar 03, 2017

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Posted on Jan 02, 2017

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