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Repair guides and support for your LG TV.

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shows the LG logo for 2-3second then the screen goes black

I’ve have an LG 42 LB5500 it turns on but only shows the LG logo for 2-3second then the screen goes black, ive search net to see if I can get some info but I’ve got mixed reply’s saying it’s either the LED backlights or the main board, I’ve stripped the TV to check the backlights & when plugged in with the screen off all the LED backlights light up but only for 1-2seconds but all of them do come on, does this mean the LED back lights are fine & it must be the main board, any help is appreciated Thanks Lee

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@bigdaddy this "LED backlights light up but only for 1-2seconds but all of them do come on, does this mean the LED back lights are fine" only means that your LED strips are shutting down. Possibly because of some (or just one) LED failing once it gets hot. Repalcing the LED strips should fix your TV.

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Lee estará eternamente agradecido.
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