Five bad Commodore 64s. One hour. All fixed!
Adrian's Digital Basement・2 minutes read
Adrian repairs five broken Commodore 64C machines in his digital basement, using troubleshooting tools like an oscilloscope to diagnose issues like faulty DRAM chips and CIA 6526 chips, ultimately restoring functionality to all machines. The repair process uncovers various issues like dirty keyboards, faulty chips, and potential manufacturing defects, highlighting the reliability of the Commodore 64C despite these challenges.
Insights
- Adrian successfully repairs five broken Commodore 64C machines in his digital basement, showcasing his troubleshooting skills and knowledge of vintage computing hardware.
- The machines' issues range from faulty DRAM chips, dirty keyboards, to malfunctioning CIA 6526 chips, highlighting the complexity and diversity of problems that can arise in restoring vintage computers, ultimately emphasizing the importance of thorough diagnostics and component replacement in achieving successful repairs.
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Recent questions
How does Adrian troubleshoot his broken Commodore 64C machines?
Adrian uses tools like an oscilloscope, diagnostic cartridge, and reliable power supply to diagnose issues. He tests video output and power supply functionality with a ZIF64 machine.
What common issues does Adrian encounter with the broken machines?
Adrian faces problems like faulty DRAM chips causing black screens, dirty keyboards affecting typing, and faulty CIA chips impacting functionality.
What components are crucial for the Commodore 64C's functionality?
Components like the CPU, Sid chip, vic2, and clock synthesizer are essential. The 6526 chip is crucial, with alternatives like 6522 or 6520 not compatible.
How does Adrian identify faulty parts in the machines?
Adrian uses diagnostic tools like a dead test cartridge, oscilloscope probe, and diagnostic harness to pinpoint faulty RAM chips and the 6526 chip causing issues.
What is the outcome of Adrian's repair efforts on the 64C machines?
Adrian successfully repairs all five machines, replacing faulty components like CIA chips and RAM. Despite potential issues, he recommends the 64C as a reliable machine.
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