HP ProBook 4420s HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Mai - Page 88

Power connector cable, Remove the power connector cable.

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Power connector cable NOTE: The power connector cable is included in the Cable kit on page 32, part number 599525-001. Before removing the power connector 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 49). 5. Remove the following components: a. Switch cover (see Switch cover on page 51) b. Keyboard (see Keyboard on page 53) c. Fan and heat sink (see Heat sink and fan on page 74) d. Speakers (see Speakers on page 60) Remove the power connector cable. 1. Position the computer right-side up with the front toward you. 2. Release the power connector cable from the system board (1). 3. Remove the modem cable (2) from the routing in the base enclosure. 4. Remove the power connector cable Reverse this procedure to install the power connector cable. 80 Chapter 4 Removal and replacement procedures

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Power connector cable
NOTE:
The power connector cable is included in the
Cable kit
on page
32
, part number
599525-001.
Before removing the power connector 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
49
).
5.
Remove the following components:
a.
Switch cover (see
Switch cover
on page
51
)
b.
Keyboard (see
Keyboard
on page
53
)
c.
Fan and heat sink (see
Heat sink and fan
on page
74
)
d.
Speakers (see
Speakers
on page
60
)
Remove the power connector cable.
1.
Position the computer right-side up with the front toward you.
2.
Release the power connector cable from the system board
(1)
.
3.
Remove the modem cable
(2)
from the routing in the base enclosure.
4.
Remove the power connector cable
Reverse this procedure to install the power connector cable.
80
Chapter 4
Removal and replacement procedures