POWER SUPPLY IS FUNCTIONAL BUT DISPLAY IS BLANK

Osman Bayrak

THE POWER SUPPLY IS FUNCTIONAL AND THE VOLTAGE READINGS ARE CORRECT BUT THE DISPLAY IS STILL BLANK:

  1. Try adjusting the Display intensity at the edge of the Keyboard to see if it will show. Use the information in the Technical Manual to see how to make the adjustment. Next, replace the KEYBOARD PCB, this PCB is 5v active. Refer to the Technical Manual for replacement instructions. Check Parts Manual for part number, and call your distributor for the part.
  2. The next item that may be the problem is the CPU PCB. The CPU supplies the 5V and the information you see on the DISPLAY. Try reseating the CPU PCB with the machine powered OFF. The KEYBOARD PCB supplies the instructions to the CPU Refer to the Technical Manual for replacement instructions. Check the Parts Manual for part number, and order from your distributor.
  3. Call your distributor to order these parts or if replacing these parts did not make the Display function, call your distributor for a service call.