First, you buy a weird HP power supply meant for external CD burners. It uses the same three prong plug that this console, MSX2, and some Famicom variant did.
Whack the sides of it with a screwdriver handle until the glue gives out and you can open the enclosure.
Swap the 5V and Ground wires. 12V wire is in correct location. Shove it back in enclosure, wrap with tape or whatever.
It lives!
So, the “junk” console turned out to need a tweak to the lid switch. It’s booting up CDRs fine.
Modding it to US region consists of solely adding a jumper wire across two marked points.
Anyway, the amperage on the HP power supply rating is way under what the system supposedly needs. I need to look at the actual components and see what their real rating are. They look pretty robust, though.
I’ve played Crossed Swords 2, Nam 75, Magician Lord, and The Super Spy. About 30 seconds to get to the game and then 8 seconds between levels. The loading issues are way over stated, at least for the early games.