I doubt the OP will ever see your response, he's been gone for a year. But take the bottom of the case off, make sure the channel switch is set correctly and not in between positions, check the cord coming off the RF modulator inside there is ok, and check the RF modulator is on good, I forget for sure but I thought they just pulled off. It's just a standard "RCA" plug off the RF modulator, so replacing the cord is easy.