THE DISPLAY IS ON BUT THE TOUCH KEYS DO NOT RESPOND:

1. Try turning the machine off, then on.
2. If the Display is still not functioning , test the 5 volt setting outlined in the first 2 sections of this guide.
3. Reseat the CPU PCB & 4 Axis PCB with the machine powered off. Use the replacement instructions outlined in the Technical Manual to perform this operation.
4. Replace the Keyboard PCB, using the previous information.
5. If still a problem, call your distributor.