Power Button Board - HP PROBOOK 4520S Maintenance And Service Manual

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7.
Remove the optical drive bracket (2).
Reverse this procedure to reassemble and install an optical drive.

Power button board

Description
Switch cover with power button board
For use in computers with 17.3-in displays
For use in computers with 15.6-in displays and black or red trim
For use in computers with 15.6-in displays and champagne-colored trim
Before removing the power button 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 switch cover and keyboard (see
Battery on page
55).
Switch cover and keyboard on page
Spare part number
598675-001
598674-001
626114-001
56).
Component replacement procedures
63

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