HP 721953-251 Datasheet download pdf (Page 76)

4. Turn the board upside down, and then disconnect the cable (3) from the board (4).

5. Remove the function board from the top cover.

Reverse this procedure to install the function board.

Card reader board

Description Spare part number

Card reader board 721535-001

Before removing the card reader 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

Battery on page 38).

5. Remove the following components:

a. Service door (see

Service door on page 39).

b. Keyboard (see

Keyboard on page 51)

c. Optical drive (

Optical drive on page 43)

d. Top cover (see

Top cover on page 55)

Remove the card reader board:

66 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts

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HP 721953-251 Datasheet Page 76