HP 721953-251 用户手册
Optical drive extension board
Description
Spare part number
Optical drive extension board
721944-001
Before removing the optical drive extension 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.
)
c.
)
d.
WLAN/Bluetooth module (see
e.
Keyboard (see
)
f.
Top cover (see
g.
System board (see
)
Remove the optical drive extension board:
▲
Pull the optical drive extension board straight away from the side of the system board.
Reverse this procedure to install the optical drive extension board.
Power cable
The power cable is included in the Cable Kit, spare part number 721936-001.
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Chapter 6 Removal and replacement procedures for Authorized Service Provider parts