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Special thanks to PCBWay for sponsoring this video.
In this video, I return to a very early "Silver Label" Commodore 64 with a serial number in the 800s to finish a repair I previously failed at. With help from the community and some new diagnostic tools, I track down a persistent bit 2 error to a faulty U22 RAM chip. Watch as I demonstrate a clean desoldering technique, test the chip with a shiny new dedicated DRAM tester, and address further diagnostic errors related to the control ports on this rare 1982 motherboard.
Patreon
MAIN CHANNEL!
BlueSky
Ko-fi page
Amazon Wishlist
Discord Channel
More Fun Website
Facebook
#Commodore64 #RetroRepair #VintageComputing
By Special thanks to PCBWay for sponsoring this video.
In this video, I return to a very early "Silver Label" Commodore 64 with a serial number in the 800s to finish a repair I previously failed at. With help from the community and some new diagnostic tools, I track down a persistent bit 2 error to a faulty U22 RAM chip. Watch as I demonstrate a clean desoldering technique, test the chip with a shiny new dedicated DRAM tester, and address further diagnostic errors related to the control ports on this rare 1982 motherboard.
Patreon
MAIN CHANNEL!
BlueSky
Ko-fi page
Amazon Wishlist
Discord Channel
More Fun Website
Facebook
#Commodore64 #RetroRepair #VintageComputing