So I picked up a snes today that I have thoroughly cleaned and I get video and audio through the Rf switch but I only get audio with the AV plug. The AV plug I’m using works just fine on my other snes. My TV is a CRT not a new tv. I have also cleaned and checked the AV plug pins and they look fine. Before I started the deep clean I checked to see if it worked and it had the same issue. Questions I have are:
where should I start the troubleshooting? Does the Rf have a Separate capacitor then the AV plug in, on the board? Could it be a cold solder on the AV port? Any thing else I should consider? Thank you for any and all help.