HP Pavilion Dv4 2100 Entertainment Notebook Pc Series Manual

Removal and replacement procedures
Maintenance and Service Guide4–19
Optical drive
✎The optical drive spare part kit includes an optical drive bezel and bracket. 
Before removing the optical drive: 
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...

4–20Maintenance and Service Guide
Removal and replacement procedures
Keyboard
Before removing the keyboard: 
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 AC adapter from the computer. 
4. Remove the battery (see “Battery” on page 4-7). 
5. Remove the hard drive cover (see “Hard Drive” on page 4-8).
6....

Removal and replacement procedures
Maintenance and Service Guide4–21
Remove the keyboard:
1. Remove the three Phillips PM2.5×15.0 screws that secure the keyboard to the computer. 
2. Turn the computer display-side up with the front toward you.
3. Open the computer as far as possible.
4. Lift the rear edge of the keyboard 1 until it rests at an angle.
✎The keyboard is secured by double-sided tape.
5. Slide the keyboard 2 back until the tabs on the bottom of the keyboard are clear of the keyboard cover. 

4–22Maintenance and Service Guide
Removal and replacement procedures
6. Release the zero insertion force (ZIF) connector 1 to which the keyboard cable is attached, and disconnect 
the
 keyboard cable 2 from the system board. 
7. Remove the keyboard.
Reverse this procedure to install the keyboard. 

Removal and replacement procedures
Maintenance and Service Guide4–23
Keyboard cover
Before removing the keyboard 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 disconnecting the power cord from the AC outlet and then 
disconnecting the AC adapter from the computer....

4–24Maintenance and Service Guide
Removal and replacement procedures
2. Turn the computer display-side up with the front toward you.
3. Open the computer as far as possible.
4. Remove the Phillips PM2.5×8.0 screw 1 and the Phillips PM2.5×4.0 screw 2 securing the keyboard cover to 
the top cover.
5. Disconnect the LED board cable 3.
6. Release the keyboard cover 4 by sliding it toward the display assembly until it disengages from the computer.
7. Remove the keyboard cover.
Reverse this procedure to...

Removal and replacement procedures
Maintenance and Service Guide4–25
Power button board
Before removing the power button board: 
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 from the...

4–26Maintenance and Service Guide
Removal and replacement procedures
Speaker assembly
Before removing the speaker assembly: 
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 from the...

Removal and replacement procedures
Maintenance and Service Guide4–27
Display assembly
✎The display assembly spare part kit includes two WLAN antenna transceivers and cables, webcam, microphone, 
nameplate, and logo.
Before removing the display assembly: 
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...

4–28Maintenance and Service Guide
Removal and replacement procedures
Remove the display assembly:
1. Turn the computer display-side up, with the front toward you.
2. Open the display as far as possible.
3. Remove the wireless antenna cable from the routing channels and clips 1 and disconnect it from the base 
enclosure 2.
4. Disconnect the display cable 3 from the system board. 
5. Remove the two Phillips PM2.5×5.0 screws 1 and the two Phillips PM2.5×8.0 screws 2 that secure the 
display assembly to the...