Greetings,
I got a model 4 from a neighbor and got it running (blown power supply caps replaced, brother was able to make me a TRSDOS 6 disk on his XT), but there’s one last issue I can’t seem to figure out.
The upper drive (1) refuses to read disks.
Now here’s the strange thing- if I swap drives, the upper drive works flawlessly in the drive 0 position.
The drive cable has good continuity, as does the ribbon cable connecting the floppy controller to the motherboard. Is it possible something failed in the controller?
I got a model 4 from a neighbor and got it running (blown power supply caps replaced, brother was able to make me a TRSDOS 6 disk on his XT), but there’s one last issue I can’t seem to figure out.
The upper drive (1) refuses to read disks.
Now here’s the strange thing- if I swap drives, the upper drive works flawlessly in the drive 0 position.
The drive cable has good continuity, as does the ribbon cable connecting the floppy controller to the motherboard. Is it possible something failed in the controller?