https://makertube.net/videos/watch/783af563-409e-4be3-ad4b-7ffb350c2b13 Stepping outside my usual 8-bit and 16-bit microcomputers to diagnose a broken NEC PC Engine. Special thanks to PCBWay for sponsoring this video. https://www.pcbway.com/ I start by checking the power and voltage regulators before moving on to reflow the ribbon cable connections. After testing a few capacitors out of circuit, I use an oscilloscope to probe the RAM and data bus, working through the schematics to isolate the fault. The process ultimately points to a bad CPU, which unfortunately halts this specific repair. ───────────────────────────── If you'd like to help keep the lights on (and the tools plugged in), my Patreon is the best way to do it. Patrons get ad-free early access to videos, behind-the-scenes updates, and entry to a super secret Discord channel — plus my sincere gratitude, which is worth roughly what you'd expect. ▸ Patreon: https://www.patreon.com/c/morefunmakingit ───────────────────────────── I also have another channel called More Fun Making It, where I build things from scratch instead of trying to coax life back into them. Same shed, different end of the workbench. ▸ More Fun Making It: https://www.youtube.com/@MoreFunMakingIt ───────────────────────────── There's also the Retro Hardware Discord, where people who enjoy this sort of thing gather to talk about it. It's better than it has any right to be. ▸ Retro Hardware Discord: https://discord.gg/ChH726tbbF ───────────────────────────── #PCEngine #RetroRepair #ConsoleRepair Sat, 20 Jun 2026 18:30:29 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://apertatube.net https://apertatube.net/client/assets/images/icons/icon-1500x1500.png https://makertube.net/videos/watch/783af563-409e-4be3-ad4b-7ffb350c2b13 All rights reserved, unless otherwise specified in the terms specified at https://apertatube.net/about and potential licenses granted by each content's rightholder.