HP Pavilion Dv8 1200 Entertainment Notebook Pc Series Manual

							Removal and replacement procedures
Maintenance and Service Guide4–33
Speaker assembly
Before removing the speaker 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 4-7). 
5. Remove the following components: 
a. Switch cover (see “Switch cover” on page 4-21)
b. Keyboard cover (see “Keyboard cover” on page 4-23)
c. Keyboard (see “Keyboard” on page 4-27)
Remove the speaker assembly:
1. Disconnect the speaker assembly cable 1 from the system board. 
2. Remove the two Phillips PM2.0×4.0 screws 2 that secure the speaker assembly to the top cover.
3. Release the wireless antenna cables from the routing channel 3 built into the right side of the 
speaker assembly.
4. Remove the speaker assembly 4.
Reverse this procedure to install the speaker assembly. 
Description Spare part number 
Speaker assembly496887-001 
						

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Removal and replacement procedures
Display assembly
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 4-7). 
5. Remove the following components: 
a. Switch cover (see “Switch cover” on page 4-21)
b. Keyboard cover (see “Keyboard cover” on page 4-23)
c. Keyboard (see “Keyboard” on page 4-27)
d. Speaker assembly (see “Speaker assembly” on page 4-33)
Remove the display assembly: 
1. Open the computer as far as possible. 
2. Disconnect the display panel cable 1 from the system board.
3. Disconnect the webcam/microphone module cable 2 from the system board.
4. Remove the WLAN antenna cable 3 from the opening and the routing channel built into the top cover.
Description Spare part number 
18.4-inch, AntiGlare, high-definition, dual-lamp display assembly (includes 2 WLAN antenna 
transceivers and cables, webcam, microphones, and logo) 577001-001 
						

							Removal and replacement procedures
Maintenance and Service Guide4–35
ÄCAUTION: Support the display assembly when removing the following screws. Failure to support the display assembly can 
result in damage to the display assembly and other computer components.
5. Remove the four Phillips PM2.5×7.0 screws 1 that secure the display assembly to the computer. Be sure to 
hold the display before removing the last screw, to prevent damage to the display.
6. Lift the display assembly 2 straight up, and remove it. 
7. If it is necessary to replace the display enclosure or any of the display assembly internal components:
a. Remove the rubber screw covers 1 and the four Phillips PM2.5×7.0 screws 2 on the display bezel 
lower edge. 
						

							4–36Maintenance and Service Guide
Removal and replacement procedures
b. Turn the display assembly upside down, with the bottom edge toward you.
c. Release the display enclosure bottom edge 1 as far as the wireless antenna cables and display logo LED 
cable allow.
d. Remove the wireless antenna cables 2 from the slot built into the display hinge cover.
e. Disconnect the display logo LED cable 3 from the display logo LED board.
f. Remove the display enclosure 4. The display enclosure is available using spare part number 577003-001.
8. If it is necessary to replace the wireless antenna transceivers and cables:
a. Remove the Phillips PM2.0×4.0 screw1 that secures each transceiver to the display enclosure.
b. Detach the transceivers 2 from the display enclosure.
c. Release the retention tabs 3 built into the display enclosure, and remove the wireless antenna cables from 
the tabs. The wireless antenna transceivers and cables are included in the Display Cable Kit, spare part 
number 496876-001. 
						

							Removal and replacement procedures
Maintenance and Service Guide4–37
9. If it is necessary to replace the webcam/microphone module:
a. Remove the Phillips PM2.0×4.0 screw 1 that secures the module to the display bezel.
b. Release the webcam/microphone module 2 as far from the display bezel as the webcam/microphone 
module cable allows.
c. Disconnect the webcam/microphone module cable 3 from the webcam/microphone module, and remove 
the webcam/microphone module. The webcam/microphone module is available using spare part number 
499242-001.
10. If it is necessary to replace the display hinge cover, display inverter, or webcam/microphone module cable:
a. Remove the four Phillips PM2.0×4.0 screws 1 that secure the display hinge cover to the display bezel.
b. Remove the display hinge cover 2 from the display bezel. The display hinge cover is available using spare 
part number 577004-001. 
						

							4–38Maintenance and Service Guide
Removal and replacement procedures
11. If it is necessary to replace the webcam/microphone module cable, remove the cable from the display panel. 
The webcam/microphone module cable is included in the Display Cable Kit, spare part number 496876-001.
12. If it is necessary to replace the display panel cable:
a. Detach the adhesive reinforcement strip 1 that secures the display panel cable to the display panel.
b. Disconnect the display panel cable 2 from the display panel.
c. Disconnect the display panel cable from the display inverter 3, and remove the display panel cable 4. 
The display panel cable is included in the Display Cable Kit, spare part number 496876-001. 
						

							Removal and replacement procedures
Maintenance and Service Guide4–39
13. If it is necessary to replace the display inverter:
a. Release the display inverter 1 as far from the display bezel as the backlight cables and display panel 
cable allow.
b. Disconnect the two backlight cables 2 and the display panel cable 3 from the display inverter, and remove 
the display inverter. The display inverter is available using spare part number 498324-001.
14. If it is necessary to replace the display hinges:
a. Remove the two Phillips PM2.0×4.0 screws 1 that secure the display hinge bracket to the display bezel.
b. Remove the display hinge bracket 2. 
						

							4–40Maintenance and Service Guide
Removal and replacement procedures
c. Remove the four Phillips PM2.0×4.0 screws 1 that secure the display hinges to the display panel.
d. Remove the four Phillips PM2.5×7.0 screws 2 that secure the display hinges to the display panel.
e. Remove the display hinges 3. The display hinges and display hinge bracket are included in the Display 
Hinge Kit, spare part number 496874-001.
Reverse this procedure to reassemble and install the display assembly. 
						

							Removal and replacement procedures
Maintenance and Service Guide4–41
Top cover
Before removing the top cover, 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 4-7). 
5. Remove the following components: 
a. Optical drive (see “Optical drive” on page 4-8)
b. Mass storage device (see “Mass storage device” on page 4-10)
c. TV tuner module (see “TV tuner module” on page 4-13)
d. Memory module (see “Memory module” on page 4-16)
e. WLAN module (see “WLAN module” on page 4-17)
f. Switch cover (see “Switch cover” on page 4-21)
g. Keyboard cover (see “Keyboard cover” on page 4-23)
h. Keyboard (see “Keyboard” on page 4-27)
i. Speaker assembly (see “Speaker assembly” on page 4-33)
j. Display assembly (see “Display assembly” on page 4-34)
When replacing the top cover, be sure that the following components are removed from the defective top cover and 
installed on the replacement top cover:
■Power button board (see “Power button board” on page 4-25)
■Bluetooth module (see “Bluetooth module” on page 4-26)
■Bluetooth module cable (see “Bluetooth module cable” on page 4-31)
Description Spare part number 
Top cover (includes fingerprint reader board, fingerprint reader board cable, TouchPad, and 
TouchPad cables)577007-001 
						

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Removal and replacement procedures
Remove the top cover: 
1. Turn the computer upside down, with the front toward you.
2. Remove the 14 Phillips PM2.5×7.0 screws that secure the top cover to the base enclosure.
3. Remove the three Phillips PM2.0×4.0 screws 1 in the mass storage device bay, and the four Phillips 
PM2.5×4.0 screws2 in the battery bay, that secure the top cover to the base enclosure.