iz8dwf | Commodore SX64 "finger assisted" repair (an easy one). @iz8dwf | Uploaded March 2024 | Updated October 2024, 2 hours ago.
One of my SX-64 (S/N GA4006622) unfortunately had a PLA failure. Up until December 2023 (40 years from its manufacturing date) it was still running with all original ICs.

Timeline:
00:00 - Welcome
01:22 - SX4 mini tour
02:10 - Hot ROM
02:59 - It's PLA's fault
04:03 - Extracting CPU PCB

My 82S100 PLA and its soviet clone video:
youtu.be/nicaN-IdzNI