I just bought this lathe - a CHNC1 with Sinumerk 810T control. I had been using the lathe all day, jogging the machine, setting up tool offsets, when suddenly the florescent light went out and the screen froze. The control would not respond to any keys. I finally turned off the control, then back on again, and now only four LEDs light for about 3 seconds, then turn off again. The control normally comes on after ten seconds, but in this case, it never comes on again.

If I turn the control off, then on again, I still get the four LEDs turning on. So, the control power relay is working, but I cannot discern much more at this point.

Can someone suggest the title of a service or diagnostic manual that includes schematics, test points, voltages, etc? Or perhaps offer some suggestions on how to identify a fault in the system?

I realize it may be a system in the lathe rather than the control, but I have to start somewhere.

Thank you for your help.

Torin...