Hello,

I use FANUC Series Oi Mate-MB Controller for my machining center. I have encountered a problem after powering up. The monitor showed nothing and the keypad did not light up. I looked behind to check the indicator lights (please see attached photos for more details). There were 4 green lights and 1 red light on. The LED status display showed "8". I'm looking for an explanation as to why this happened and how I can troubleshoot this problem.

Big thanks in advance.

Best Regards,
pmanoj