Original board:
(From the C64-Wiki)
- Schematics in PDF: C64C-250469-01-A.pdf
- Complete BOM in LibreOffice Calc format, including part numbers from Digi-Key and Mouser C64C-250469-01-A.ods
I am quite confident that the schematic is stable and bug-free.
Good News! I acquired a spare motherboard that matches exactly this revision. With this example in my hand, I corrected all dimensional errors in the PCB. I also placed with great precision all the external connectors. Now work on routing the PCB can begin!