HP Pavilion 15-bj000 Maintenance and Service Guide - Page 65

To remove the system board, Speaker cable

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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 34). 5. Remove the optical drive (see Optical drive on page 35). 6. Remove the bottom cover (see Bottom cover on page 38). 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: ● Memory modules (see Memory module on page 47) ● WLAN module (see WLAN module on page 43) ● Heat sink assembly (see Heat sink assembly on page 49) ● Fan (see Fan on page 48) To remove the system board: 1. Position the computer upright, and then disconnect the following cables from the system board: (1): Speaker cable (2): Display cable (3): Power connector cable (4): Optical drive cable (5): Keyboard cable (6): Touchpad cable (7): Hard drive cable Component replacement procedures 57

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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
34
).
5.
Remove the optical drive (see
Optical drive
on page
35
).
6.
Remove the bottom cover (see
Bottom cover
on page
38
).
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:
●
Memory modules (see
Memory module
on page
47
)
●
WLAN module (see
WLAN module
on page
43
)
●
Heat sink assembly (see
Heat sink assembly
on page
49
)
●
Fan (see
Fan
on page
48
)
To remove the system board:
1.
Position the computer upright, and then disconnect the following cables from the system board:
(1)
: Speaker cable
(2)
: Display cable
(3)
: Power connector cable
(4)
: Optical drive cable
(5)
: Keyboard cable
(6)
: Touchpad cable
(7)
: Hard drive cable
Component replacement procedures
57