I HAVE A 55" TV, 1993 MODEL #NV55BX4/REMOTE CONTROL #RM-C980. NO MANUAL FOR EITHER ONE...THE OTHER NIGHT I FELL ASLEEP WITH THE TV ON-WOKE UP WITH THE REMOTE AT MY SIDE, AND A BLUE SCREEN, WITH NO SOUND. I CAN'T CHANGE CHANNELS WITH THE UP/DOWN PAD. I REALIZE IF THERE IS NO SIGNAL, THAT THE SCREEN IS BLUE, BUT I HOOKED UP A DIFFERENT TV, AND VERIFIED THAT A SIGNAL IS PRESENT. WOULD APPRECIATE IT IF YOU CAN HELP REMEDY THIS. THANKS

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