HP ProBook 4740s HP ProBook 4740s Notebook PC - Maintenance and Service Guide - Page 69

Power cable, Speaker see

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Reverse this procedure to install the audio board. Power cable The power cable is included in the Cable Kit, spare part number 684633-001. 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 33). 5. Remove the following components: a. Bottom door (see Bottom door on page 34). b. Keyboard (see Keyboard on page 45) c. Top cover (see Top cover on page 47) d. Speaker (see Speaker assembly on page 58) e. Fan (see Fan on page 57) Remove the power cable: 1. Position the computer upright. 2. Disconnect the cable from the bottom of the system board (1). 3. Lift the power cable assembly from the computer (2). Reverse this procedure to install the power cable. Component replacement procedures 61

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Reverse this procedure to install the audio board.
Power cable
The power cable is included in the Cable Kit, spare part number 684633-001.
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
33
).
5.
Remove the following components:
a.
Bottom door (see
Bottom door
on page
34
).
b.
Keyboard (see
Keyboard
on page
45
)
c.
Top cover (see
Top cover
on page
47
)
d.
Speaker (see
Speaker assembly
on page
58
)
e.
Fan (see
Fan
on page
57
)
Remove the power cable:
1.
Position the computer upright.
2.
Disconnect the cable from the bottom of the system board
(1)
.
3.
Lift the power cable assembly from the computer
(2)
.
Reverse this procedure to install the power cable.
Component replacement procedures
61