HP 721953-071 ユーザーズマニュアル

Remove the service door to access the memory module slot, hard drive, and other components.

Before removing the service door, follow these steps:

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.

Disconnect all external devices connected to the computer.

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.

Remove the battery (see 

To remove the service door:

With the battery bay toward you, remove the optional security screw (1), (if the optional security screw
is being used, see 

), and then slide the service door

release latches (2) to release the service door.

If you do not want to use the optional security screw, you can store it inside the battery bay.

Slide the service door toward the front of the computer (3) and lift (4) to remove the service door.

Component replacement procedures

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