HP 15-af100 Maintenance and Service Guide - Page 64

USB board cable, Before removing the system board, follow these steps

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Before removing the system board, 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 30). 5. Remove the optical drive (see Optical drive on page 31), if installed. 6. Remove the bottom cover (see Bottom cover on page 37). 7. Remove the hard drive (see Hard drive on page 40). NOTE: When replacing the system board, be sure that the following components are removed from the defective system board and installed on the replacement system board: ● WLAN module (see WLAN module on page 42) ● Memory module (see Memory module on page 44) To remove the system board: 1. Position the computer upright, and then disconnect the following cables from the system board: (1): USB board cable (2): Optical drive connector cable (3): Keyboard cable (4): Power connector cable (5): Display cable (6): Power button board cable (7): TouchPad button board cable (8): Speaker cable 56 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts

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Before removing the system board, 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
30
).
5.
Remove the optical drive (see
Optical drive
on page
31
), if installed.
6.
Remove the bottom cover (see
Bottom cover
on page
37
).
7.
Remove the hard drive (see
Hard drive
on page
40
).
NOTE:
When replacing the system board, be sure that the following components are removed from the
defective system board and installed on the replacement system board:
●
WLAN module (see
WLAN module
on page
42
)
●
Memory module (see
Memory module
on page
44
)
To remove the system board:
1.
Position the computer upright, and then disconnect the following cables from the system board:
(1)
: USB board cable
(2)
: Optical drive connector cable
(3)
: Keyboard cable
(4)
: Power connector cable
(5)
: Display cable
(6)
: Power button board cable
(7)
: TouchPad button board cable
(8)
: Speaker cable
56
Chapter 6
Removal and replacement procedures for Authorized Service Provider parts