I have a old Okuma Horz. Mill with a OSP 5000 M-G. I have been getting a CRP 240 alarm on and off, but now it wont go away. I checked all the connections and swapped the Operator Panel and it still there. I don't have a spare CPR Board to swap. Okuma doesn't have any in stock except a new one which is out of my range. To repair the old one its about 2 weeks if they can fix it in the USA, longer if it has to go to Japan. I'm about 98% sure its the board. Anyone have any suggestions on the 2% i'm not sure of.