Hi guys, just checking with you experts.....
I got a X4+ from Australia ( Frans) that just refused to work this morning.
It had been perfect b4, as i wanted to start up this morning, the machine is switching on just fine ( Display works and shows manual mode).

But, pretty much each and every button refuses to work except for the e-stop ( you can hear a relay switching). I opened the control-box and found the following...some connections were a bit loose....fuses were all good....all lights on the boards green, except the ones on the stepper drivers which show constant red. I also noticed an high frequency hissing sound coming from the mainboard once the e-stop button is released.
Spindle, Manual mode, manual axis movement all a no-go. Mpg and parallel port not connected....
Guys any ideas....I am a bit clueless here how to get this puppy back to work.