11.6 Power Inlet Module / AC and DC Harness Replacement
SENSITIVE TO ELECTROSTATIC DISCHARGE CAUTION
This procedure includes ESD sensitive parts. ESD control guidelines must be followed during this
procedure to ensure that static charges are safely conducted to the ground and not through the
sensitive device, to prevent damage to the equipment.
1. Make sure the system power cord is unplugged from the power outlet.
2. Release the power cord retainer and pull the power cord out of the power inlet module.
3. Remove the unit cover as instructed in section 11.5.
4. Remove the air lter as instructed in section 11.1.
5. Unplug the AC harness wires from the power module (Refer to Figure 11-9). Note how AC wires are
connected to power module terminals before unplugging them to avoid wrong connections during re-
installment.
6. Use a Philips screwdriver to remove the power inlet module screws and pull the module out.
7. To remove the AC harness, disconnect the AC harness from the power supply board. To remove the AC
harness ground wire, use a 7 mm nut driver to remove the nut that attached the wire to the back plate to
release the ground wire (Refer to Figure 11-10).
8. To remove the DC harness, disconnect the harness from the LED driver board and from the power supply
board.
9. Reverse steps to re-install.
CAUTION:
When re-installing, make sure to connect the AC harness phase and neutral wires correctly to
their corresponding terminals on power inlet module.
Figure 11-9
Figure 11-10
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Chapter 11: Replacement Procedures
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