screan went black but sill have sound

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turbocharged
screan went black but sill have sound

i have a 42" plasma digistar  the screan went black and i still have sound.  turns out the tv is a mounth off its warrenty nd i dont have want to throw this one away nd let someone else fix it. tried shutting it off and checked the fuises, any other  suggestions on how i can fix this?

 

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