Ethernet Harness

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The Ethernet harness connects the user interface (keyboard) to the Main PCB at connector location J1.

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CAUTION!!  Do not confuse the user interface harness with the similar looking Ethernet harness.  The user interface harness connects to J23 on the Main PCB while the Ethernet harness connects to J1.  Both connectors are the same type, so make sure you are connecting to the correct connector.

Failure of the Ethernet harness will generally be caused from handling of the harness during other repairs or maintenance.  It should rarely fail on its own without being handled.

Replacement Parts Needed:

Replacement Procedures:

1.  Turn the machine off.

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CAUTION!!    Use extreme care not to drop metallic objects, tools, or other conductive material on the Main PCB when you have the base cover removed.  If you drop such objects on the Main PCB, it can severely damage the electronics which will be very expensive to repair.

2.  Remove the base cover and the lower arm rear cover.

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Figure 1 - Ethernet Harness Connected to Coupler

3.  Remove any twist-lock cable ties that tie the Ethernet harness to adjacent ones and disconnect it from the back of the Ethernet coupler mounted on the power input assembly plate on the left rear section and from the main PCB at connector location J1. You also need to remove the radio interference ferrite.

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Figure 2 - 32188 Series EMI Cover over Main Board

 

4.  Remove the EMI cover from the main control board by removing the screws from the edge of the cover. Remove the radio interference ferrite indicated in Figure 2.

 

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Figure 3 - Ethernet Connector Location on Main PCB (J1)

5.  Remove the old Ethernet harness.  

6.  Connect the replacement harness to the main PCB at connector location J1.

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Figure 4a - EMI Cover

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Figure 4b - New Type EMI Cover

7.  Replace the EMI cover carefully following the procedures provided in "EMI Cover - 32188 Series" or "EMI Cover - 32232 Series" as appropriate, and the radio interference ferrite as shown in Figure 2.

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Note: Make sure that you replace radio interference ferrite exactly as shown in the instructions for the appropriate EMI cover.

8.  Connect the other end of the Ethernet harness to the back of the Ethernet coupler on the power input assembly plate and coil any excess length in back of the coupler as shown in Figure 1.

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Note: Make sure that you replace radio interference ferrite exactly as shown in Figure 1.

9.  Replace the twist-lock cable ties on the harness tieing it to adjacent ones.

10. Reinstall the rear covers and tighten the screws to Melco Torque Specifications.

11. Turn the machine on and load the AMAYA OS (AMAYA OS).

12. If the software shows the machine being connected, the Ethernet harness and the circuitry on the main PCB is working correctly.

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