HP ProBook 440 G1 Notebook PC Maintenance and Service Guide

Power cable
The power cable is included in the Cable Kit, spare part number 721510-001.
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 37).
5. Remove the following components:
a. Service door (see
Service door on page 38).
b. Hard drive (see
Hard drive on page 39)
c. Optical drive (see
Optical drive on page 42)
d. WLAN/Bluetooth module (see
WLAN/Bluetooth combo card on page 46)
e. WWAN module (see
WWAN module on page 48)
f. Keyboard (see
Keyboard on page 50)
g. Top cover (see
Top cover on page 54)
h. System board (see
System board on page 68)
Remove the power cable:
1. Position the system board upside-down.
2. Disconnect the cable from the bottom of the system board.
Reverse this procedure to install the power cable.
70 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts