Difference between revisions of "Kaypro"
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* [https://obsolescence.wixsite.com/obsolescence/introduction-to-cpm Introduction to CP/M] | * [https://obsolescence.wixsite.com/obsolescence/introduction-to-cpm Introduction to CP/M] | ||
* [http://www.chrisfenton.com/dd9-kaypro-edition/ A developer ports his game to Kaypro] | * [http://www.chrisfenton.com/dd9-kaypro-edition/ A developer ports his game to Kaypro] | ||
* [https://oldcrap.org/2020/05/31/kaypro-ii/ Information (and wonderful images) on the Kaypro II] | |||
Latest revision as of 10:27, 25 March 2022
Log (most recent first)
- 2A fuse on mains side blew, probably when RIFA capacitor failed
- RIFA film capacitors in PSU replaced, they're notorious for failure after a long time. PSU still does not seem to provide rails. Fault in other components?
- Floppy seems fine, fault is in PSU. While diagnosing, got single arc in some PSU component. Does not boot, does not provide rails.
- Discover that disconnecting floppy allows boot to BIOS, suspect fault there causing overcurrent
- Does not boot, squealing/chirping noise, manual indicates short in a component
- Initial boot(s): HDD error of some sort
Reference
MFM
- David Gesswein's BeagleBone-based MFM emulator
- Kaypro 10 with MFM Hard Drive Reader/Emulator
- floppy (*not* HDD) MFM in Glasgow
- whitequark seems to intend to do MFM drives at some point
Software
Misc.
- Kaypro versions guide
- See also Part 2 for hardware information
- Introduction to CP/M
- A developer ports his game to Kaypro
- Information (and wonderful images) on the Kaypro II
