HP 4540s Spécifications télécharger pdf (Page 117)

Power cable

The power cable is included in the Cable Kit, spare part number 683477-001 for 4540s models,

683640-001 for 4440s/4441s models.

Before removing the power cable, 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 55).

5. Remove the following components:

a. Bottom door (see

Bottom door on page 58).

b. Optical drive (see

Optical drive on page 60)

c. WLAN/Bluetooth module (see

WLAN/Bluetooth combo card on page 68)

d. WWAN module (see

WWAN module on page 66)

e. Keyboard (see

Keyboard on page 70)

f. Top cover (see

Top cover on page 82)

g. Speaker assembly (see

Speaker assembly on page 91)

h. System board (see

System board on page 99)

Remove the power cable:

1. Position the computer upright with the front toward you.

2. If necessary, disconnect the cable from the bottom of the system board (1).

Component replacement procedures 109

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HP 4540s Spécifications Page 117