Question about RCA F36645 TV

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T.V comes on blue screen and no volume

I was watching the set, I heard a kind of snap sound and lost audio. I turned the set off and back on. Now I get no picture,only a blue screen and still no audio. If I put in a dvd, I get the sound from the dvd but no picture. I am hooked up to broad band. Any ideas??

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Tuner problems

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