have a question on SDU VAC type A D8 unit
we where told we need a new unit(U7950-006-008R type a)

now i was checking on prices and was told we could buy the top board
that would fix my problem.

This is what we found Has 3 & 12 arlarm on powerup with CNC control off,


Not sure what to buy will just the top board work?


need help

delete