I am new to the forum, so I hope this is the right place to post.
I have two Heian CNC woodworking routers that use the Fanuc 15MB control. They have a 9" monchrome screen. One failed to boot up yeaterday, so in troubleshooting to find a bad card we swapped cards between machines, (after backing up the one that was still working). After a couple attemps we found a bad card on the Adax board and replaced. We also found a memory upgrade card (a year ago they were upgraded from 128K to 2M) was bad causing the video to go out.
Now the bad part. In troubleshooting to see if the Main C card was bad, all cards were swapped including the F-Rom. Now both machines will not boot up. They get to the CNC DATA SEARCH: ERROR.
If I hit reset I get to the SRAM card load screen, but loading the backup appears to do no good. If I hold PG up/Pg dn during power up it does not change. If I hold 7 & 9 during power up, no change. If I hold -&. during power up no change.
Any ideas what to do from here. I do have a third machine that is the same, if I can get any needed info from it without destroying it.
Thanks in advance to all. I feel like a real idiot at this point with two dead production machines.