Hi guys, I'm currently stuck in excalibur's repair. I fixed the MPU, even tried with a mypinballs MPU, and same result: the pin seems to boot, but when it starts after pressing the start button (it detect coins) it doesn't detects anything else: neither the flippers coils work or any target on the playfield and all the lights turn off.

The following video shows the machine ATM:

I don't have much knowledge in these 80b pins but already did the psu ground mod, fixed 5v power supply and changed some molexs connectors. I don't know what to do next....

A donwside to this repair, is that I still don't have a working alpha numeric display.

Yep, put 2 balls and it's a working interconnector cable.