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WARNING!! This procedure is intended to be performed only by specially trained Melco service technicians and personnel. Disassembly by untrained individuals will void any warranty protection and can result in personal injury or damage to the machine.
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WARNING!! Do not attempt to disassemble the power supply unit for any reason. There are no user serviceable components inside. Internal components in the power supply unit might still have residual voltage (even if power is disconnected) that can cause painful electrical shock. |
1. Disconnect the harness wiring from both wiring blocks on the side of the power supply.
2. Remove the four Phillips head screws (w/star) on the bottom of the power input mounting plate that mount the power supply to the plate.
3. Install a new power supply unit and install the screws loose at first, then tighten them to Melco Torque Specifications when all four are installed.
Figure 1 - Bottom Wiring Block (Switch Interface Leads)
4. Attach the ring connectors of the switch interface harness to the power supply wiring blocks as shown in Figure 1 above. Tighten the screws enough to hold them securely but do not over tighten them.
Figure 2 - Top Wiring Block (Wire Leads from Power Interface Harness)
5. Connect the leads of the power supply interface harness (coming from white 8 position connector above switch) to the top wiring block on the side of the power supply as shown in Figure 2 above. The labels shown are also marked with tags on the harness itself. The V+ and V- leads are interchangeable with any of the other leads having the same labeling (V+ or V-).
