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Top cover

NOTE: The top cover spare part kit includes the TouchPad. However, it does not include the

TouchPad cables. The TouchPad cables are included with the TouchPad button board. For more

information on the TouchPad button board, see

TouchPad button board on page 69.

Description Spare part number

Top cover for use in charcoal models 685762-001

Top cover for use in black models 713530-001

Before removing the top cover, 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 41), and then remove the following components:

●

Memory module/wireless module compartment cover (see

WLAN module on page 49)

●

Hard drive (see

Hard drive on page 54)

●

Keyboard (see

Keyboard on page 60)

NOTE: When replacing the top cover, be sure that the following components are removed from the

defective top cover and installed on the replacement top cover:

●

Power button board and cable (see

Power button board on page 67)

●

TouchPad button board and cables (see

TouchPad button board on page 69)

To remove the top cover:

1. Close the computer, and then turn the computer upside down with the front toward you.

Component replacement procedures 63

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HP 450 Spezifikationen Seite 71