I Opened This SAM Coupé Keyboard… It Was Full of Bugs 🪲

Half the keys on this SAM Coupé had completely stopped working. Not intermittent. Not pressure related. Just dead. So what should have been a simple keyboard repair turned into a full strip down, deep clean, membrane replacement, and rebuild. Big thanks to PCBWay for supporting the channel: https://www.pcbway.com - PCBWay offers PCB manufacturing, 3D printing, CNC machining and assembly services. In this video I repair the failed keyboard on a Miles Gordon Technology SAM Coupé, replace the original membrane, explain why membrane keyboards fail over time, clean every part of the keyboard, and rebuild the entire assembly with a brand new membrane. Along the way I also discover some very unwelcome little visitors hiding inside the machine. Timestamps 00:00 Intro and SAM Coupé keyboard fault 00:24 Half the keys completely dead 00:55 Gotek upgrade plan for future episode 01:17 New replacement keyboard membrane 02:19 Dead bugs inside the computer 03:02 Opening the keyboard assembly 04:37 Removing the original membrane 06:14 Why membrane keyboards fail over time 07:23 Cleaning the rubber mat and internals 08:47 Removing all keycaps 10:28 Washing keys, frame and components 13:53 Reassembly with new membrane 17:48 Avoiding damage to old plastic threads 18:52 Refitting keyboard into the case 20:35 Testing the repaired keyboard 21:41 Loading games on the SAM Coupé 22:00 Repair success but RF output issue remains 22:22 Support the channel (Patreon and Ko-fi) 23:30 Watch another video The SAM Coupé was released in 1989 by Miles Gordon Technology. It is a Z80 based British home computer with proper RGB output and some genuinely ambitious ideas, even if it arrived a bit late. If you enjoy retro computing, vintage computer repair, keyboard restoration, and old hardware being brought back to life, you’re in the right place. Support the channel: Patreon:   / markfixesstuff   Ko-fi: https://ko-fi.com/markfixesstuff #samcoupe #retrocomputing #keyboardrepair #retrogaming #vintagecomputers #z80 #restoration