A Very Faulty ZX Spectrum!

Repairing a ZX Spectrum 48KB with 5 different faults hidden away! **Please Like and Comment if you enjoyed the video, it means a lot to me! 🖖 ** Thanks PCBWay for sponsoring this video: https://pcbway.com/g/M525r4 Follow me on Twitter!   / tony359   For your ZX Spectrum (and more) spares, take a look at Retroleum UK https://retroleum.co.uk/ Diagnostic ROM http://blog.retroleum.co.uk/electroni... Take a look at Lee's channel for more Speccy fun ‪@MoreFunRetro‬ https://projectspeccy.com/ for tons of Spectrum projects BitFunx store I do NOT recommend: https://www.aliexpress.com/store/1102... 00:00 Intro 02:20 Overview 04:08 PSU test 05:34 Composite mod 06:23 Power up 07:38 Diagnostic ROM 10:10 Troubleshooting 11:24 ULA replacement 12:26 RAM issue 1 13:10 Thermal analysis 14:15 Capacitor replacement 19:45 RAM issue 2 22:26 RAM issue 3 24:39 DC-DC mod 25:57 Speaker test 31:21 Video adjustment 33:25 Running software 34:28 Speaker replacement and final test 36:05 Cleaning and reassembling 36:34 Outro