I am trying to help out a small wood working shop. They have an scm morbidelli cnc. It has been setting for years unused. The workers that ran it are long gone. Just a few basic manuals. I am trying to use MDI g/m codes. I want to see if the spindle works. I have read some post here about that subject. When I try to use MDI I get nothing. I hit the MDI F6 button. Enter information. Hit the start button. Nothing happens. Have tried hitting the F12 button two times. Turned spindle on, picked direction of spin, put in 2 numbers so will times by 1,000 hit enter, start button. Tried start button on hand held. Tied putting numbers/ m codes in the "MDI controls" box. Any thing I am missing, doing wrong for this model? Any help is appreciated