Tag Archives: sx-64

The SX-64, as it should be

Spot the difference. Before: After: The former owner replaced the original SX-64 KERNAL (251104-04) with a C64 one (901227-02), most probably to be 100% compatible with all the games. But an SX-64 doesn’t feel like an SX-64 without its unique colors. That’s why I replaced the KERNAL chip again, this time with the original one. Actually I couldn’tContinue reading “The SX-64, as it should be”

Fixing the Commodore SX-64: Replacing the MOS 6526

MOS 6526: The CIA chip You turn on your beloved SX-64 and you don’t see the blinking cursor. Don’t panic. Most probably one of the CIA chips (MOS 6526) is not working correctly. The Commodore 64 has two CIA chips. What you need to do is to replace the one that controls the keyboard, the CIAContinue reading “Fixing the Commodore SX-64: Replacing the MOS 6526”