Japanese DX7 Upgrade Board

"[email protected] [YamahaDX]" <[email protected]> 02 Oct 2019 02:21:46 +0000

Newsgroups	gmane.music.equipment.yamaha-dx
Message-ID	<[email protected]>

Well you can imagine that this would be best country to get a DX7 expansion board from, yet I've never heard of this one before. Google does a decent job of translating, but the link is horrible. So, here is the original:

https://ameblo.jp/noz-music/entry-12409746174.html https://ameblo.jp/noz-music/entry-12409746174.html

Anyone ever seen one?