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6.
Rotate the top cover up (1) and off the base enclosure (2).
Reverse this procedure to install the top cover.
Power switch board
The spare part number for the power switch board used in all models is 605794-001.
Before removing the power switch board, follow these steps:
1.
Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2.
Disconnect all external devices connected to the computer.
3.
Disconnect the power from the computer by first unplugging the power cord from the AC outlet
and then unplugging the AC adapter from the computer.
4.
Remove the battery (see
5.
Remove the service door (see
6.
Remove the keyboard (see
82
Chapter 4 Removal and replacement procedures
Battery on page
53).
Service door on page
Keyboard on page
73).
53).
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