Back to basics: Fixing a 40 year old Commodore 64

Let’s kick off 2026 with a repair of a good old broken Commodore 64. In years past, I worked on and fixed many C64s, so it was nice to work on one of these again.

— Links

Testing SID noise fixes by Mark at The Retro Channel:

DesTest Switch: (Available now!)
https://factorofmatt.com/destest-max-switch

Pinouts of various C64 chips:
https://www.lemon64.com/forum/viewtopic.php?t=71611

CurveBug:

Curvebug Debugging Tool

https://www.ebay.com/itm/116963724638

VintageTek Shop: (Where the CurveBug will be available when more are in stock)
https://www.ebay.com/str/vintagetek

VintageTek Museum:

Entry

ROM replacement projects:
https://lectronz.com/products/commodore-64-sx-64-and-1541-replacement-roms
https://onerom.org/

Adrian’s Digital Basement ][ (Second Channel)
https://www.youtube.com/channel/UCbtwi4wK1YXd9AyV_4UcE6g

Support the channel on Patreon:
https://www.patreon.com/adriansdigitalbasement

My GitHub repository:
https://github.com/misterblack1?tab=repositories

— Instructional videos

My video on chip removal without damage:

— Music

Intro music and other tracks by:
Nathan Divino
@itsnathandivino

About The Author

Classic Computing Bot

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