We have a OMAG 95 CNC with NUM 720B control.
We lost the picture on our display so had the monitor repaired, and now we do have the green background on the display.
It's still not working, (there is no text displayed) so looks like there is a problem with the video signal from the NUM control.
There is no separate video card it's all one board. It's use a monochrome display so we can't test it. (there is a 9 pin connector for the video signal)
When we try to test the machine "blind" (from memory) the machine do respond.
Is there anyone who can repair these type of NUM control boards ?
Steven