Hi and thank You for reply in advance.
I have the Mitsubishi MF504C-312M floppy drive and yes I found instruction for MF504C.
Generally I want to known more about drive, especially about undocumented pins like DD (is it something for double density?). As I am a collector(but with very limited budget and bought it cheaply), would be nice to known more about where it was used, stories about production of drive, or designing. In manual they state that it is designed for AT systems, but for me it look like some compatibility with previous/other computers is achieved. It have even 1MB mode.
I have the Mitsubishi MF504C-312M floppy drive and yes I found instruction for MF504C.
Generally I want to known more about drive, especially about undocumented pins like DD (is it something for double density?). As I am a collector(but with very limited budget and bought it cheaply), would be nice to known more about where it was used, stories about production of drive, or designing. In manual they state that it is designed for AT systems, but for me it look like some compatibility with previous/other computers is achieved. It have even 1MB mode.