ENDURO-REPAIR part 2 - ZX Spectrum Repair 48k

The pile of five mostly broken ZX Spectrums is reduced by another one! In this episode, I manage to track down the fault using a combination of diagnostic testing tools and an oscilloscope. Faulty ram chips can sometimes trash the system so badly it's just about impossible to track down the fault without removing components (see the next one in this series for a great example of this!). I never claim to be an expert, and I don't want that label. It carries too much responsibility. The purpose of my channel is to share my journey. If you accidentally learn something that's all on you. Second Channel (NEW👀) https://www.youtube.com/@UCp_nZTSh3Pw6bkMztszyPmg Jan Beta https://www.youtube.com/@UCftUpOO4h9EgH0eDOZtjzcA Adrian's Digital Basement https://www.youtube.com/@UCE5dIscvDxrb7CD5uiJJOiw Velociraptor Dave https://twitter.com/Velocir35149743 This Week In Retro Podcast https://www.youtube.com/@UCFMx-JitepTttWc-ABHhu8A Retroleum (Parts supplies) https://www.retroleum.co.uk/