HP 721953-081 用户手册
Power button board
Description
Spare part number
Power button board assembly
721531-001
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.
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.
then unplugging the AC adapter from the computer.
4.
Remove the battery (see
5.
Remove the following components:
a.
)
b.
Keyboard (see
)
c.
Optical drive (
d.
Top cover (see
e.
Speakers (see
).
Remove the power button board:
1.
Position the top cover upside-down.
2.
Disconnect the cable from the board (1).
3.
Remove the Phillips PM2.0×3.0 screw (2) that secures the power button board to the top cover.
Component replacement procedures
63