Hey Birt!'s video: C128 Crystal Power - How to test crystals in circuit

In this video we take at a method to use an oscilloscope to do a go/no-go type of test. This was discovered after a C128 I was working with dies right before my eyes. Imagine my surprise when I found the crystal had died. We are of course performing this test with the C64 powered OFF. I made use of the techniques we have covered so far in the ‘Troubleshooting Vintage Computers’ series to quickly track the problem down to a missing clock and then finally to a dead crystal. Please consider clicking on the Subscribe button below and then click the bell icon. That way you will be notified when I post a new video. Thanks! Help support Hey Birt! https://www.subscribestar.com/hey-birt https://www.patreon.com/heybirt Hey Birt! On Social Media! Facebook: Soigeneris: https://www.facebook.com/Soigeneris-295527583797729/ Hey Birt!: https://www.facebook.com/HeyBirt/ Twitter: Hey Birt!: https://twitter.com/HeyBirt?lang=en Credits Chiptune Thing No. 3 "Victory" by Steven O’Brien https://soundcloud.com/stevenobrien Creative Commons — Attribution 3.0 Unported— CC BY 3.0 http://creativecommons.org/licenses/b... Music provided by Music for Creators https://youtu.be/ujIMRIJ1JG8