4-2 Chapter 4: Hardware 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 5976 Customer Display requires minimal maintenance. Should the display
malfunction, adhere to the procedures in the following troubleshooting chart.
Symptom Probable Cause Solution
Check for faulty connections
Check power source to
power supply
Check for damaged cables
Check connections
On power–up unit lights but
does not communicate with
to host port
Verify host configuration
Servicing the 5976 Customer Display
If the unit does not perform properly, you need to replace it. It contains no serviceable
parts and must be replaced as a whole display unit.
Cleaning the Display
Remove power from the unit before cleaning.
When cleaning is required, a soft cloth dipped in a mild detergent can be used to
clean the cabinet. Only a damp cloth is required so that no moisture can enter the
cabinet. Never spray the cleaner directly onto the unit. Care should be taken not to
scratch the lens during cleaning.
No preventive maintenance is required to meet the Service Calls per Machine per
Year requirement.
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