Wunder-Bar JoeTap NITCOM - Symptom 4: Communication down Page

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Symptom 4: Communication Down:
1. Open the door and remove the screen cover and foam to verify that the Ethernet cable, USB cable and Power
Supply cable are all plugged in. Plug in a loose connection See Figure 17.
2. Remove the Rear Enclosure Cover to verify the Ethernet Cable is plugged into the PCB. See Figure 18a and
Figure 18b.
3. Next verify that the PCB has LED Lights on, if it is not on, check the harness from the power supply to the PCB is
not broken. This can be verified by probing the Power Supply Output and the PCB Power Input Terminal. See
Figure 15.
Ethernet Cable
Figure 18a: Ethernet Cable Shown-Old
Configuration.
Figure 16: Communication Down Screen.
Figure 18b: Ethernet Cable Shown-New
Configuration.
Ethernet Cable
Ethernet
Cable
Display
Power Supply
Harness
USB Cable
Figure 17: Screen Wiring shown.