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Tag: PLA Replacement

Replace a Faulty PLA Chip in a Commodore 64 8-Bit Computer with a PLA20V8 (15-30 mins)

January 3, 2025 moorejh28@gmail.com Hardware, Repair

Task: Replace a Faulty PLA Chip in a Commodore 64 with a PLA20V8 Needed: PLA20V8 Time: 15-30 minutes Introduction The Programmable Logic Array or PLA is key to managing the chips using the data bus in the Commodore 64. Unfortunately, the MOS-branded PLAs are prone to failure. The good news

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Copyright (C) 2026 Jason H. Moore, Ph.D.