How does the FC/FDS switch work in a Twin Famicom ?

[Pit]

I was wondering, how does that switch work in the sharp twin famicom ?

How does it enable or disable the use of FDS part ?

[Pit]

Ok  it disable access on the famicom cartridge connector ?

Looking at the famicome cartridge datasheet, which pins are considered ?

[aarkay14]

Hi!
I am looking for this answer as well! Can you help in detail!?

-Rama

[80sFREAK]

It will disable FDS BIOS and RAM.

[P]

Yeah I guess it just disables the internal "RAM Adapter" electrically (so it's like it's not connected) when turned into cartridge mode. When in disk mode it blocks the cartridge connector but I guess it's possible it also disables it electrically.

[80sFREAK]

In disk mode cart slot blocked mechanically