Can't pass jvs io compatible test on initial D Zero(ERROR 6402)

[ShihuogegeTech]

I tried lots of presets, also tried to enable all functions I could enable.
it just show JVS I/O board does not fulfill the game spec.

Here is how the original IO looks in jvs test

And here is my iona(I use d3 preset that in github issue, but I tried other preset it's same error)

[toyoshim]

Can you guess what feature would be actually needed by this title?
Does it have some special I/O features?
Maybe unavoidable differences for the current IONA are:

• rotary inputs (iona's max is 2, but the official JVS has 4)
• general purpose outputs (iona has 18, but the official JVS has 20)

So, maybe outputs for cab's LED lighting or something?

[ShihuogegeTech]

Can you guess what feature would be actually needed by this title? Does it have some special I/O features? Maybe unavoidable differences for the current IONA are:

• rotary inputs (iona's max is 2, but the official JVS has 4)
• general purpose outputs (iona has 18, but the official JVS has 20)

So, maybe outputs for cab's LED lighting or something?

Yea the cab led is from jvs, maybe I should test more io to find out what features it needs.
But in your comment you mentioned these specs can't as same as original io, but can't we just set a fake data?