Commodore 64 Service Manual: Board Layout #250425-01
Motherboard - C64-Wiki
Motherboard - C64-Wiki
PetterHans on X: "Cloning of the C64 KU Motherboard done. Layout and Schematics done, but not Design Rules Checked yet. Been quite exhausting project. https://t.co/UhAv63DbVg" / X
MJK's Commodore Hardware Overview: Commodore 64
The C64 250407 replica - Share Project - PCBWay
How to identify C64 and SID model | ilesj's blog
How to identify C64 and SID model | ilesj's blog
MJK's Commodore Hardware Overview: Commodore 64
File:C64 ASSY NO 250425 motherboard 1984.jpg - Wikimedia Commons