74 REMOVAL AND REPLACEMENT PROCEDURES
WARNING! The next step requires the removal of cables through the chassis. Some edges on the
chassis might be sharp. Be careful when removing these cables.
6 Slide the front panel cables through the chassis and out the front of the unit.
To replace the front panel I/O device assembly, reverse the previous steps.
Power Button Assembly and System Speaker
The power button and the system speaker are part of the same assembly.
To remove the power button:
1 Disconnect power from the system (page 66), remove the access panel (page 71), remove the front
bezel (page 71), and remove the front panel I/O device assembly (page 73).
2 Disconnect the power button assembly cable from the system board.
3 Disconnect the speaker wire and the hood sensor from the in-line connectors on the power button
assembly cable.
4 Remove the screw that secures the power button assembly to the chassis.
5 Pull the power button assembly away from the chassis.
6 Slide the power button assembly out from the front of the chassis.
To remove the speaker:
1 Disconnect the speaker cable from the in-line front panel I/O device assembly cable, if you have not
already done so.
2 Slide the speaker away from the three flanges and remove it from the chassis.
Power Supply
1 Disconnect power from the system (page 66), remove the access panel (page 71) and lay the
workstation on its side with the system board facing up.
2 Disconnect the power supply from the system board.
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