CoCo 2 Restore Part 4 Keyboard & 64k Memory Upgrade (Tandy Assembly 2024)

Part 4 of my project to donate for the no-minimum-bid auction at Tandy Assembly 2024. The idea is to create a ready-to-go "Dungeons of Daggorath" CoCo2!
www.tandyassemb...
References:
Keyboard cleaning: • TRS-80 CoCo 2 Keyboard...
Powering with USB: github.com/hal...
Retro Chip Tester: 8bit-museum.de...