MAMEWorld Forums - Ultimarc - J-PAC Lockup during LED animations (Self Test)

Hi everyone,

I'm new to this forum as a writer, but a long time reader of mameworld

I'm using your JPAC in my arcade cabinet for few years now, without issue..

However, I noticed recently a behavior which is not ideal and wanted to know if there was a workaround:

When I boot my arcade cabinet, my kids are always pushing tons of buttons during the boot process. Resulting the JPAC to detect some input as faulty (ON on boot).

What happen with the self-test, is that it will lockup every input to the cabinet while it is sending the right number of blinks to the LED... which result in a long freeze as my cabinet already booted for a while...

Does anyone knows if there a mode where the self-test LED do not block the inputs pass thru, or a mode when I can deactivate the self-test (jumper)?

I saw the last firmware seems to solve something similar but only for the Ultimate IO version of the board?

Thank you for your help

Bubs