On Wed, 6 May 1998, Martijn van Buul wrote: > Hmm.. Does anyone have an explanation of the diagnostic codes of the > SFD-1001 (or 8250 / 8050) ? My SFD-1001 is blinking at me, and I'd like > to know what it wants :) http://www.funet.fi/pub/cbm/schematics/drives/old/ contains only the 2031 and [2-4]040 schematics, but in /pub/cbm/firmware/drives/old you can find the SFD-1001 and 850 firmware. Disassemble them to find the LED blinking sequences. I think that it is the controller ROM and CPU that does the blinking, so it'd be only 1024 bytes you have to disassemble. BTW, I got new PET schematics: the SuperPET add-on boards and the new universal system board. Marko
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