Resources

Commodore Repair

The Pictorial C64 Fault Guide is here: https://www.pictorial64.com

Ray Carlsen’s troubleshooting and repair guides are here: http://personalpages.tds.net/~rcarlsen/cbm/c64/

You can get the .bin files for various C64 diagnostics cartridges from World of Jani (in case you want to make your own or try in an emulator): http://blog.worldofjani.com/?p=164

Here’s Sven’s page with info about the Diagnostics test harness, all files to make your own are available on his GitHub (for use with the C64/C128 Diagnostics Carts): http://tech.guitarsite.de/c64_diag_harness.html

Online resistor and capacitor calculator http://kiloohm.info/resistor-4/brown-black-orange-gold