Chapter 5: Service |
Servicing the Display
Warning: Before servicing the equipment plug your safety strap into a proper grounding outlet. Failure to do so could damage the equipment.
Normal Operation
On power‐up, the unit displays the firmware part number for 2 seconds, then lights all pixels for 2 seconds, then goes blank and awaits commands from the host.
Troubleshooting Procedures
The NCR 5972 Customer Display requires minimal maintenance. Should the display malfunction, adhere to the procedures in the following troubleshooting chart.
Symptom | Probable Cause | Solution |
|
|
|
Blank screen on | No power to unit | Check for faulty |
power‐up |
| connections |
|
| Check power source to |
|
| power supply |
|
| Check for damaged |
|
| cables |
|
| Check connections |
|
| |
On power‐up unit Bad cable connections to | Check connections | |
lights but does | host port |
|
not communicate |
|
|
with host |
|
|
| Misconfigured host | Verify host |
|
| configuration |
|
|
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