Stumping Black Screen Amstrad CPC 464 Repair

Video Description

This Amstrad CPC 464 had resisted all previous attempts at being repaired. And since I like a good challenge and I have a soft spot for Amstrads, I decided to take it on. The symptoms were a black screen with no video signal at all. It turns out, multiple faulty components made this repair more challenging than usual. Chapters: 00:00 Intro 00:43 Visual inspection 02:23 Voltages 04:48 Clock signals 08:24 Video signals 10:32 ROM 12:30 CRTC 14:38 Cartridge ROM 17:50 Gate Array 21:06 EPROM fix 23:54 Conclusion Support Noel's Retro Lab on Patreon: https://www.patreon.com/NoelsRetroLab You can also support Noel's Retro Lab on YouTube by joining this channel: https://www.youtube.com/channel/UC2-SP1bYi3ueKlVU7I75wFw/join Music tracks: Funky Stars by McKlain https://mcklain.bandcamp.com/track/funky-stars-amstrad-cpc-true-8bit-version Battro OST by McKlain https://mcklain.bandcamp.com/track/battro-ost More awesome music by McKlain: https://www.mcklain.com 🛠 Tools I use ➤ https://noelsretrolab.com/tools.html Connect with Noel's Retro Lab: Discord ➤ https://discord.gg/ETcCh6J Facebook ➤ https://www.facebook.com/NoelsRetroLab Twitter ➤ https://twitter.com/NoelsRetroLab Instagram ➤ https://www.instagram.com/NoelsRetroLab Mailing list ➤ https://noelsretrolab.com #amstrad #retrocomputer #repair