The Triple Freedom team recently embarked on a mission to revive a dead Commodore 64, confronting challenges methodically.
Day 1: Diagnostics revealed a blown fuse and a shorted voltage regulator (IC7805). Replacements were made.
Day 2: A broken PLA chip was identified and swapped, restoring partial functionality.
Day 3: Power issues tied to a partially failing CPU were resolved by replacing the chip, enabling consistent power-ups.
Day 4: Sound problems traced to a faulty SID chip were fixed with a replacement.
Day 5: The team tackled an unresponsive keyboard, inspecting and replacing CIAs and related components. The culprit—a partially functional U8 MOS 7707 chip—was replaced, fully restoring the system.
Finally, the Commodore 64 was brought back to life thanks to persistence and precise troubleshooting. To prevent similar failures, old power supplies are discouraged.
