Touch screen or Computer issue

[AE95]

No communication between computer and controller - solved

@nucliwelder If you have anything like the tool setter or probe plugged in, I would unplug these just for troubleshooting purposes. Next, if you have a digital voltmeter I would check the DC voltage at the board connectors between 36V+ and COM to make sure you are seeing voltage into the control board. Another thing to try quickly would be plugging the USB cable in without the USB isolator (if you are using our control PC).