Powering a JAMMA to JVS IO board

[kazuma]

I've been attempting to set up an exa arcadia system with this JVS IO board.. though it just shows a generic IO error. I mistakenly assumed that power would be sent over the USB-B port, but I guess that's not the case. Here are some pics:

So my question is regarding how I should go about actually supplying power to the IO board? This board in particular is meant for JAMMA inputs (from what I've found, it seems to be a chinese clone of a capcom IO board), but the harness I'm using doesn't have pins for the power lines. Would it be reasonable to manually solder cables into the 5V pins and run them into something like the image below, or would this be overkill?

Alternatively, am I overthinking this/is there a different approach I should consider?

 

[kazuo]

You hit the nail on the head, it is expecting +12V/5V over the JAMMA edge. You just need to get those voltages to the harness somehow (and probably the GND lead(s), haha) for it to work correctly.

BTW, not for nothing, but that I/O is supposed to have high input latency IIRC. May want to just ditch it entirely for something like TD-IO.

 

[kazuma]

Glad my guess was in the right direction. I was considering eventually switching out the IO board for a proper capcom or sega one, but TD-IO looks like something I'd definitely want to figure out since it'll be going into a proper cab in the future (plus, less reliance on old peripherals is nice). For now, I just needed something cheap for a test bench setup incase I accidentally blew something up.