HP ENVY 15-as100 Maintenance and Service Guide - Page 56

RTC battery cable, Webcam/microphone module cable

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a. Solid-state drive (see Solid-state drive on page 35) b. WLAN module (see WLAN module on page 37) c. Fan (see Fan on page 39) NOTE: When replacing the system board, be sure that the memory module(s) (see Memory module on page 33) and the heat sink (see Heat sink on page 50) are removed from the defective system board and installed on the replacement system board. Remove the system board: 1. Disconnect the following cables from the system board: (1) Power connector cable (2) Speaker cable (3) TouchScreen board cable (4) USB board ZIF connector cables (2) (5) RTC battery cable (6) Webcam/microphone module cable (7) Display panel ZIF connector cable (8) TouchPad ZIF connector cable (9) Keyboard ZIF connector cable (10) Keyboard backlight ZIF connector cable (11) Hard drive ZIF connector cable 2. Remove the two Phillips M2.5×3.1 broad head screws (1) that secure the system board to the keyboard/ top cover. 3. Remove the Phillips M2.5×5.8 screw (2) that secures the system board to the keyboard/top cover. 4. Remove the four Phillips M2.5×3.8 screws (3) that secure the system board to the keyboard/top cover. 48 Chapter 5 Removal and replacement procedures

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a.
Solid-state drive (see
Solid-state drive
on page
35
)
b.
WLAN module (see
WLAN module
on page
37
)
c.
Fan (see
Fan
on page
39
)
NOTE:
When replacing the system board, be sure that the memory module(s) (see
Memory module
on page
33
) and the heat sink (see
Heat sink
on page
50
) are removed from the defective system board
and installed on the replacement system board.
Remove the system board:
1.
Disconnect the following cables from the system board:
(1)
Power connector cable
(2)
Speaker cable
(3)
TouchScreen board cable
(4)
USB board ZIF connector cables (2)
(5)
RTC battery cable
(6)
Webcam/microphone module cable
(7)
Display panel ZIF connector cable
(8)
TouchPad ZIF connector cable
(9)
Keyboard ZIF connector cable
(10)
Keyboard backlight ZIF connector cable
(11)
Hard drive ZIF connector cable
2.
Remove the two Phillips M2.5×3.1 broad head screws
(1)
that secure the system board to the keyboard/
top cover.
3.
Remove the Phillips M2.5×5.8 screw
(2)
that secures the system board to the keyboard/top cover.
4.
Remove the four Phillips M2.5×3.8 screws
(3)
that secure the system board to the keyboard/top cover.
48
Chapter 5
Removal and replacement procedures