Originally Posted by vivalakellye

I have an original Nintendo Entertainment System. It worked until November, when I let my cousins play with it. I have no idea what they did to it, but now my NES won't work when connected through the RF cable or through A/V cables. (I generally play SMB, so for the purposes of my problem, that's the game I've got in the console.) When I turn on the NES, the red light next to the power button does NOT blink, but does turn on. Both my TV and the switch on the back of the NES are set to Ch. 3. (I've tried switching both to channel 4, but FOX comes in on that channel so the connection doesn't work out at all.)

So basically, everything appears to be normal, but when I turn the TV on to Ch. 3 and turn on the NES, the menu for SMB doesn't show up and the TV screen stays black.

Does anyone know exactly what is wrong, and is there any way to fix whatever is going on?