Electroware PSU 64 power supply for the Commodore 64. breadbox64.com

Electroware C64 PSU

Replacing the original Commodore 64 power supply may be the single most valuable step to prolong the life of the old hardware! The main issue with the original C64 power supplies is the 5V line. When it eventually fails (and it will!), from e.g. a shorted internal … Read more

Commodore 1541 Diskette Drive diagnostic test cartridge. Tested on breadbox64.com

1541 Diagnostic Cart

Repairing Commodore 1541 Diskette Drives (link) is not something I have tried before. But when I recently had these four broken drives thrown in my general direction I had to take up the challenge! The problem with diskette drive repair’s is that most diagnostick software … Read more

More C64 Repair Logs

During the last couple of weeks I’ve received 8 (!) broken Commodore 64 machines that were in need of repair. The repair logs of three of them have already been described here (link), while the latter five had issues ranging from faulty Serial Ports (link, link, link), … Read more

Jupiter Lander running with failed RAM chips. breadbox64.com

Brute Force Repair!

I have fixed quite a few broken Commodore 64’s, but this one was by far the most challeging one! The machine started out as a simple memory fault that was fixed so it could run the cartridge game of Jupiter Lander. However, it took a … Read more

Broken C64’s Repaired

I just got this stack of broken and badly discolored Commodore 64C’s from a friend. The cases were made in China, Hong Kong and Germany… The first board is an Assy 250469 Rev. A board that had a broken keyboard – some of the keys … Read more