Mint Condition 250469

Part of the QA procedure for the MechBoard64’s (link) includes testing the keyboards in a real Commodore 64. Doing it this way calls for a lot of power cycles, cartridge swaps for testing keys, plugging and unplugging of the keyboards etc. I therefore use a motherboard … Read more

Green Short Boards

…and a yellow longboard have been added to my collection of Commodore 64 motherboards. The yellow Assy 250425 Revision B longboard is in really great shape. It has a MOS 8500 MPU which is quite unusual for the long boards. Normally they have MOS 6510 … 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