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HP 731179-151 User Manual

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Power button board
Description
Spare part number
Power button board for use in HP EliteBook 840/HP ZBook 14 models
730959-001
Power button board for use in HP EliteBook 850 models
730822-001
Before removing the power button board, follow these steps:
1.
Turn off 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 the power from the computer by unplugging the power cord from the computer.
3.
Disconnect all external devices from the computer.
4.
Remove the following components:
a. Service cover (see 
)
b. Battery (see 
c.
Fan (see 
d. Keyboard (see 
e. Base enclosure (see 
)
f.
Heat sink (see 
Remove the power button board:
1.
Disconnect the power button board cable from the power button board (1).
2.
Remove the broadhead Phillips PM2.0×3.0 screw that secures the board (2) to the top cover.
86
Chapter 6   Removal and replacement procedures for Authorized Service Provider parts