Lets say I want to make my own card converter, because I'm broke.
I have a few spare HUCards, and a few broken Turbos. Is it possible to just take the reader out of the turbo, wire up the trace flips, and put any ol' hucard on the end?
I direct you here:
https://www.pcengine-fx.com/forums/index.php?topic=5227.0
Chop has made a makeshift converter that apparently works so it might be a good ideal to ask him. You can also mod your system pretty easy if you have good soldering skills. If you have a PC Engine then you'd have to disable the security chip first to be able to play games with a converter games x has a nice writeup on how to do it here:
http://www.gamesx.com/importmod/necjapmod.htm
After that you can install a region mod switch to switch between us/japanese mode.
With the US systems all you need to do is just do the mod for the region switch.
Hey! that converter is basically what I envisioned!.
Nice.
I may have to take a spare turbo and try the region mod switch thing instead though. That would be cooler.