So the 18 dollar as-is Intellivision I picked up has the Black Screen of Death.

I cleaned the carts and blew out the cartridge slot. Still no love.

I pulled it apart and went over the power supply with a multi-meter all of the voltages seem pretty good. I guess the next step is the logic board, but I'm not really sure where to start with that.

Anyone have suggestions?

Thanks,
Thom