Resources Wiki zimmers.net Internals Motherboard   Battery can be replaced with a 1/2AAA size 3.6V modern battery. You just need to open the plastic box to…… Read more “Commodore PC 50-II”

Resources Wiki zimmers.net Service Manual – towards the end of this file there is a service manual for two-component board of PC10 Internals Motherboard Interestingly, this motherboard is…… Read more “Commodore PC 10”

Resources Wiki Service Manual oldcomputer.info zimmers.net (many files to download) Internals Motherboard Jumper settings on the “Commodore PC Combined Motherboard”. If you wonder why this motherboard is…… Read more “Commodore PC 10-II”

Resources Wiki Le-grenier-informatique (interesting posters) Technical Manual and Schematics (from zimmers.net) Lots of useful information from vcfed.org Internals Motherboard PC-III (PC10c) Board Revision 5.7A. Compare against Revision 6.2 from…… Read more “Commodore PC 10-III”