HP Pavilion Dv4 2100 Entertainment Notebook Pc Series Manual

Removal and replacement procedures
Maintenance and Service Guide4–29
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.
7. Remove the Mylar screw covers 1 and the two Phillips PM2.5×5.0 screws 2 on the display bezel lower 
edge.The display mylar screw covers are included in the Display Rubber Kit, spare part number 486874-001.
8. Flex the inside edges of the top...

4–30Maintenance and Service Guide
Removal and replacement procedures
10. Release the inverter 1 from the clips in the display enclosure as far as the display panel cable and the backlight 
cable will allow.
11. Disconnect the display panel cable 2 and the backlight cable 3 from the display inverter. The display inverter 
is available using spare part number 486736-001.
12. Remove the four Phillips PM2.5×5.0 screws 1 and the four Phillips PM2.5×3.0 screws 2 that secure the 
display panel to the display...

Removal and replacement procedures
Maintenance and Service Guide4–31
14. To replace the display cable:
a. Release the foil shield 1 that covers the cable.
b. Remove the tape 2 that secures the cable to the display.
c. Unplug the cable 3 from the display.
d. Remove the cable from the display 4. This also includes the webcam and LED cables. The display cable is 
available using spare part number 486878-001.
15. Replace the display hinges, remove the eight Phillips PM2.0×3.0 screws 1 that secure the hinges...

4–32Maintenance and Service Guide
Removal and replacement procedures
17. Replace the wireless antenna transceivers and cables, remove the two Phillips PM2.5×3.0 screws 1 that secure 
the transceivers to the display enclosure.
18. Detach the wireless antenna transceivers 2 from the display enclosure. The transceivers are secured by a foil 
wrapping.
19. Remove the wireless antenna transceivers and cables from the clips 3 built into the display enclosure. 
20. Remove the wireless antenna transceivers and...

Removal and replacement procedures
Maintenance and Service Guide4–33
Webcam/microphone module
Before removing the webcam/microphone module: 
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 disconnecting the power cord from the AC outlet and then 
disconnecting the AC adapter...

4–34Maintenance and Service Guide
Removal and replacement procedures
Top cover
✎The top cover spare part kit includes the TouchPad on/off board and cable and TouchPad board and cable.
Before removing the top cover: 
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...

Removal and replacement procedures
Maintenance and Service Guide4–35
Remove the top cover:
1. Turn the computer upside down with the front toward you.
2. Remove the following screws that secure the top cover to the base enclosure:
1 Three Phillips PM2.5×8.0 screws 
2 Three Phillips PM2.5×5.0 screws
3 One Phillips PM2.5×3.0 screw
3. Turn the computer right-side up, with the front toward you.
4. Disconnect the following cables from the system board:
1 TouchPad cable 
2 Fingerprint Reader board cable...

4–36Maintenance and Service Guide
Removal and replacement procedures
5. Remove the three Phillips PM2.5×3.0 screws 1 and the Phillips PM2.5×8.0 screw 2 that secure the top cover 
to the base enclosure.
6. Lift up the front edge of the top cover until it releases from the base 3.
7. Remove the top cover 4.
Reverse this procedure to install the top cover.  

Removal and replacement procedures
Maintenance and Service Guide4–37
Touchpad button board and bracket
Before removing the touchpad button board and bracket:
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 disconnecting the...

4–38Maintenance and Service Guide
Removal and replacement procedures
Remove the touchpad button board and bracket:
1. Turn the top cover upside down with the front toward you.
2. Disconnect the touchpad cable 1 from the top cover.
3. Remove four Phillips PM2.5×3.0 screws 2.
4. Remove one Phillips PM2.5×4.0 screw 3. 
5. Lift up 4 and remove the touchpad button board and bracket.
Reverse this procedure to install the touchpad button board and bracket.