HP 4730s User Manual download pdf (Page 82)

4. Lift the side of the board (3), slide it out from under the tab, and then remove the board from the

top cover (4).

Reverse this procedure to install the Quick Launch board.

Power button board

Description Spare part number

Power button board for use in model 4530s 646294-001

Power button board for use in model 4730s 646295-001

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.

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 47).

5. Remove the following components:

a. Bottom door (see

Bottom door on page 49).

b. Optical drive (see

Optical drive on page 50)

c. Keyboard (see

Keyboard on page 63)

d. Top cover (see

Top cover on page 65)

Remove the power button board:

74 Chapter 4 Removal and replacement procedures

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HP 4730s User Manual Page 82