Help me identify this naomi IO board

[war3zlod3r]

Got this board a long with a naomi and netdimm unit from a guy in china with very little English skills, I believe its some kind of sega IO variant but I'm not sure. Has anyone seen this? Can anyone tell me how to wire up a kick harness for it? Thanks in advance!

 

[Derick2k]

No sure what that IO is, maybe a clone? But if it follows sega types
check here for kick buttons

https://wiki.arcadeotaku.com/w/JVS#Kick.2FExtra_buttons

Kick/Extra buttons​

CN3 is a 14-pin JST_NH connector, when jumper JP1 in position B:

• 5 buttons pr player, all on jamma edge
• 8 general purpose driver outputs on CN3

Jumper JP1 in position A:

• No general purpose outputs
• 9 Buttons pr player, with buttons 6-9 via CN3:

1 - 5VDC Out
2 - 5VDC Out
3 - 5VDC Out
4 - P1 button 6
5 - P1 button 7
6 - P1 button 8
7 - p1 button 9
8 - p2 button 6
9 - p2 button 7
10 - p2 button 8
11 - p2 button 9
12 - GND
13 - GND
14 - GND

 

[war3zlod3r]

hmmmm this things CN3 isn't populated guess I'll be soldering in header pins to test, yea I've searched around and haven't been able to find anything that matches it, it doesn't have any identifiable brand or serial number to look up

 

[mv1f]

If you hook it up to a JVS system and go to the test menu it should identify itself. Though I think @Derick2k is right and it will probably lie.