HP 550 HP 550 Notebook PC - Maintenance and Service Guide - Page 62

Display assembly, Switch cover see

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Display assembly NOTE: All display assembly spare part kits include 2 WLAN antenna transceivers and cables. Description 15.4-inch, WXGA with BrightView Spare part number 495385-001 Before removing the display assembly, 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 38). 5. Disconnect the wireless antenna cables from the WLAN module (see WLAN module on page 41). 6. Remove the following components: a. Keyboard (see Switch cover on page 46 b. Switch cover (see Switch cover on page 46) c. Speaker (see Speaker on page 52) d. Display lid switch module (see Display lid switch module on page 53) Remove the display assembly: 1. Close the computer and turn it upside down, with the rear panel toward you. 2. Remove the two slotted Torx ST8M2.5×7.0 screws that secure the display assembly to the computer. 3. Turn the computer right-side up, with the front toward you. 54 Chapter 4 Removal and replacement procedures

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Display assembly
NOTE:
All display assembly spare part kits include 2 WLAN antenna transceivers and cables.
Description
Spare part number
15.4-inch, WXGA with BrightView
495385-001
Before removing the display assembly, 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
38
).
5.
Disconnect the wireless antenna cables from the WLAN module (see
WLAN module
on page
41
).
6.
Remove the following components:
a.
Keyboard (see
Switch cover
on page
46
b.
Switch cover (see
Switch cover
on page
46
)
c.
Speaker (see
Speaker
on page
52
)
d.
Display lid switch module (see
Display lid switch module
on page
53
)
Remove the display assembly:
1.
Close the computer and turn it upside down, with the rear panel toward you.
2.
Remove the two slotted Torx ST8M2.5×7.0 screws that secure the display assembly to the
computer.
3.
Turn the computer right-side up, with the front toward you.
54
Chapter 4
Removal and replacement procedures