I am afraid I am in a very deep hole now, I can´t see any light nowhere.

I will try as much as possible to make the big story into a short one.

This 18M controlled vertical mill was showing some intermittent error, every now and then the operator will find the machine with all parameters changed out from the day before. Being small operations place will guarantee that no one was changing these parameters manually. So we suspected there was a problem with the battery not being able to keep the system memory well alive during the non operating hours.

So we decided to replace the battery, but apparently something went wrong and now we get nothing but a black screen, nothing shows up on the screen. and the control main unit is showing this LED error. see attached picture. I looked into the books and I couldn´t find the same exact LED combination for error/alarm description. I truly have no idea where to go from here. I know is not a CRT problem. I am positive that the screen is working, but it appears that I have lost the operative part of the system. How could I recover from this-?


I will appreciate any help thanks!
peloflex