QuillOmega0
Member
- Joined
- Aug 8, 2022
- Messages
- 26
I'm revisting my Kaypro 10 after I shelved it after this ugly issue reared it's head.
I can't read or write the hard disk drive. Well I can but it doesn't work and crashes the mfm emulator after a while. This was a working condition previously but now it doesn't work.
I ran the diagnostics listed: http://sebhc.durgadas.com/kaypro/diags.pdf and found I get a sector buffer error.
And what's even weirder is the dump appears mirrored with eachother where 8000-81FF are almost split in half and mirrored.
I was able to get a directory listing finally from B: when I booted off floppy with a fresh image. So I know it's able to get an read. But like the memory it's mirrored.
I suspect there's a busted gate or something screwing up where the buffer chips are being mirrored but I have no idea figuring out looking at the WD1002 schematic to figure out which chips those are and the suspects.
And I have redid the cabling and reseated the chips that I could
I can't read or write the hard disk drive. Well I can but it doesn't work and crashes the mfm emulator after a while. This was a working condition previously but now it doesn't work.
I ran the diagnostics listed: http://sebhc.durgadas.com/kaypro/diags.pdf and found I get a sector buffer error.
And what's even weirder is the dump appears mirrored with eachother where 8000-81FF are almost split in half and mirrored.
I was able to get a directory listing finally from B: when I booted off floppy with a fresh image. So I know it's able to get an read. But like the memory it's mirrored.
I suspect there's a busted gate or something screwing up where the buffer chips are being mirrored but I have no idea figuring out looking at the WD1002 schematic to figure out which chips those are and the suspects.
And I have redid the cabling and reseated the chips that I could
