You can use this text as a blog post reviewing the site, or as foundational content if you are building/writing for that blog yourself.
Technical Sega (technicallysega.blogspot.com) emerged in the late 2000s/early 2010s during a renaissance of Sega console modding. Unlike mainstream Sega fansites (Sega-16, Sonic Retro) that focused on game reviews or ROM hacking, Technical Sega had a very specific niche: hardware repairs, modifications, and obscure technical documentation. Technical Sega.blogspot.com
The author (or authors — most content is attributed to a single, pseudonymous writer known as "Sega Steve" or similar handle, though never fully confirmed) was clearly an electrical engineer or a very advanced hobbyist. Their content was dense, detailed, and lacked the usual blog fluff. You can use this text as a blog
Is the blog still online?
As of my last knowledge, yes, the blogspot URL still exists, but it is unmaintained. Many images (hosted on old services like Photobucket or Tinypic) are broken. Some of the advanced guides are now out of date, as commercial mod kits (e.g., the Dreamcast DCDigital, Game Gear LCD replacements) have made his "from scratch" methods obsolete. The Origins: A Hub for Sega Modding Technical
But... the community preserved the most important content. You can find archives of Technical Sega's guides on: