In a recent video on the Triple Freedom channel, the team explores the intricate process of diagnosing and repairing a Commodore 64 with multiple failures. This particular machine presented a unique set of challenges, including odd behavior initially misdiagnosed as a fault in the color RAM. The true culprit, however, turned out to be a partially functioning PLA (Programmable Logic Array). The video takes viewers through the repair journey step by step.
Initial Symptoms
Upon arrival, the Commodore 64 displayed unusual issues with its video output. The screen showed distorted visuals, with erratic color behavior. Initially, the team suspected a problem with the color RAM. However, the situation worsened during testing, as the display deteriorated further.
Key observations included:
- Increasing visual distortion as the system ran.
- Growing instability as the machine warmed up.
It was clear something serious was amiss, prompting a deeper investigation.
