HP ProBook 4520s HP ProBook 4520s Notebook PC and HP ProBook 4720s Notebook PC - Page 95

Open the computer as far as possible

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6. Disconnect the power button cable from the system board (see Power button board on page 58). 7. Remove the speakers (see Speakers on page 60) 8. Remove the thermal shield (see Thermal shield on page 62). Remove the display cables: 1. Remove the tape that holds the cables in place(1). Disconnect the display and webcam cables from the system board and from the routing channels. 2. Disconnect the cable connectors for the display (2) and microphone (3) from the system board. 3. Disconnect the WLAN and WWAN cables (4) from the tape and from the routing channels built into the top cover. Remove the display assembly: 1. Position the computer right-side up with the front toward you. 2. Open the computer as far as possible. CAUTION: Support the display assembly when removing the retaining screws. Failure to support the display assembly can result in damage to the display assembly and other computer components. 3. Remove the six Torx M2.5×6.0 screws (1) that secure the display assembly to the computer. Component replacement procedures 87

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6.
Disconnect the power button cable from the system board (see
Power button board
on page
58
).
7.
Remove the speakers (see
Speakers
on page
60
)
8.
Remove the thermal shield (see
Thermal shield
on page
62
).
Remove the display cables:
1.
Remove the tape that holds the cables in place
(1)
. Disconnect the display and webcam cables
from the system board and from the routing channels.
2.
Disconnect the cable connectors for the display
(2)
and microphone
(3)
from the system board.
3.
Disconnect the WLAN and WWAN cables
(4)
from the tape and from the routing channels built
into the top cover.
Remove the display assembly:
1.
Position the computer right-side up with the front toward you.
2.
Open the computer as far as possible.
CAUTION:
Support the display assembly when removing the retaining screws. Failure to
support the display assembly can result in damage to the display assembly and other computer
components.
3.
Remove the six Torx M2.5×6.0 screws
(1)
that secure the display assembly to the computer.
Component replacement procedures
87