Links to original CBM manuals to troubleshoot and repair your Commodore 64, 1541, and more
Ray Carlsen, who is "on the cutting edge of obsolete technology," has some of the best repair and preventive care information available.
Where to buy parts to fix your Commodore computer or build a new C64 PSU. United States centric, but we are working to add other regions!
An astoundingly good group of people on the Lemon64 forum can help you fix nearly any issue. Search first, before posting, to see if your question has already been addressed.
Another forum with great users and the information you need to solve most any issue with your Commodore, and other vintage, computer hardware.
When all else fails, crowdsource the problem! A wiki site dedicated to all things C64 and a great place to find up-to-date answers to common problems.