The latest episode of 8 Bit Doodads brings Commodore 64/128 repair lessons to the workbench, as Nick takes on a pile of classic machines needing attention. From the start, he highlights a Commodore 128 loaded with three distinct kernels, setting the stage for hands-on troubleshooting and valuable discoveries.
Multi-Kernel C128: An Unexpected Find
Nick begins by cleaning up a well-used Commodore 128. During disassembly, he discovers a custom three-way ROM switcher inside. Each position reveals a different kernel, including one credited to “John and Todd.” This unusual multi-kernel setup sparks curiosity and hints at previous owner modifications worth exploring.
Troubleshooting C64 Issues: Power, Chips, and Persistence
Moving on, Nick shifts focus to Commodore 64 units with power and video problems. He checks voltages, swaps chips, and tests each component step by step. One system shows low voltage, pointing to switch or power rail problems, while another reveals a VIC-II chip with discolored legs. Methodical testing proves crucial throughout these Commodore 64/128 repair lessons.
Lessons Learned and Next Steps
Nick openly discusses his mistakes and what he’s learned from each attempt. He encourages viewers to share tips, especially for sourcing VIC-II chips. A stuck reset line on one board gives him a fresh lead for future repairs. While no machines return to full working order this time, Nick’s efforts highlight the ongoing learning process behind every Commodore 64/128 repair lesson.
The Value of Hands-On Repair
This episode delivers an honest look at Commodore 64/128 repair lessons in action. Whether you’re new to retro computers or have years of repair experience, Nick’s troubleshooting, multi-kernel discovery, and willingness to learn will keep you watching. These lessons show that persistence and curiosity can turn every repair attempt into a new opportunity.





