Phillips TV sound is on TV screen is pitch black

Phillips TV sound is on TV screen is pitch black

Hi I don't know what's going on with my TV I need help to fix my Philips TV I had it for a little while now but a few days ago it start doing nothing and just today the sound came on but there is no picture to screen is black there's no way I can see anything there's nothing there just a black screen and with some sound I can change the channel put the volume higher and lower but there is no picture

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