History has not been kind to boutique consoles. Not holding my breathe for AES+. Too bad this project is locked behind something that may never come out or in limited quantity.
Never had a problem with ATX on Naomi in a public arcade (we have several Naomis powered by ATX), but ATX definitely doesn't work on Triforce for some reason.
My Rambo runs on yellow. Unfortunately I don't have access to it or time to spend investigating further. Is your IO plugged into the correct JVS port? Has power?
Could be the DVD itself, DVD drive, or the HDD. Make sure you are using the same brand/model as the original HDD (not a SSD or such). Sometimes these games are very picky about hardware. I have a Rambo and needed to reinstall the game to a new HDD and it worked with a generic DVD drive. I bought...
I wonder if this is the reason I get a "link error" crash on my linked Mario Karts sometimes. They are CF-boot. Never had an issue with the NANDs. Same Triforces, just different media board.
I'd start by reseating all eeproms and looking carefully for broken or bent legs. Also inspect carefully for damage like scratches that break traces on the pcb.
I fixed this years ago. Rambo and Harley Davidson REQUIRE the (2007) 837-14472R01 JVS card for some reason. The (2004) JVS card is not compatible. What threw me off was my replacement card was also bad. A third one I tried worked -- I bought it from Mo Patel and had him test before sending. I...