Does anyone have any service manuals/schematics/etc forr NEC fd1055 (or fd1050/1053) 5.25" floppy drives?
I've got one that's giving a disk fault 18 - which I think is not reading a sector so could b...
@nprofile1q... I've got a datasheet for the Zilog Z765A floppy drive controller, which has timing diagrams and data formats, but I suspect that's too far removed from what you actually need to be useful.