Hello!
I'm reaching out for yours valuable help as I haven't been able to find the issue with this machine.
It's a Nichiyu RB-10-40-400 with an ECM PB82-57A.
I replaced TR1, TR5, TR15, TR13, TR6, and TR2 on that PCB.
After that, the connectors started working, but the traction doesn't work, and although the hydraulic system's motor runs, it doesn't raise or lower.
The PCB displays digit 3 and sometimes 6.
Steering works (unless error 6 appears), and I tested it on two different but compatible machines.
P.S.: I have no technical information about the machine, the PCB, or the error codes.
Thanks in advance!