Famicom twin

I just got a famicom twin, and I was wondering what the other ports on the system where other then the composite and mono audio ports?

The DIN connector on the back I figure is a RF AV connector of some sort because it has "RF" in it labeling(Pictures coming later). The others I have no idea what they are.


Also dose anyone know how you preserve famicom disk games? Googled it and there were some dead thread links but that was about it.

Ok here are some pictures:

The System



Here is the port I think is for the RF adapter


Unknown port #1 A controller port maybe?


Unknown port #2


I am pretty sure this the expansion port

A is definately a controller port. You need to slide open B to see what's inside. The same with the bottom port.

Ok here are some pictures of ports B, and what was under the plastic in the area labeled C&D



Port B



Underneath



Oh sorry about the really big pictures

The bottom cable is just an interface cable between the FD and the FamiCom MoBo. I can't really figure out what it does as unplugging it doesn't affect it's functionality.

Port A is a controller port, mainly used for the Zapper, keyboards, Arcade Joysticks and 3rd party controllers.

The DIN connector is definitely an A/V port, although it doesn't seem to be standard, is RGB only or mine is broken since I can't make it work with the standard one I use on my other systems (Genesis Model 1, Master System, Super Grafx, etc...)

I have no idea what the port at the right side is.

Abut preserving floppies, there's no way to do it. Magnetic media looses it's data after 20 years no matter what. Only way to save them is to rewrite them.

I believe these guys had some info about it on video (can't watch them rigfht now, I'm at work)
http://www.famicomdojo.tv/

Port B looks like it's some sort of interface to a RAM adapter, so you can use the disk drive as a standalone drive. The DIN connector definitely does not have S-video or RGB.