HP Pavilion Dv9400 Entertainment Notebook Pc Series Service Guide

Removal and Replacement Procedures
Maintenance and Service Guide 5–25
8. Release the zero insertion force (ZIF) connector 1 to which 
the LED board cable is connected and disconnect the cable2 
from the LED board.
9. Remove the switch cover.
Disconnecting the LED Board Cable
Reverse the above procedure to install the switch cover. 

5–26 Maintenance and Service Guide
Removal and Replacement Procedures
5.11 Keyboard
1. Prepare the computer for disassembly (Section 5.3).
2. Remove the switch cover (Section 5.10).
Keyboard Spare Part Number Information
For use in the following countries and regions:
Belgium
Denmark, 
Finland, 
Norway, 
and Sweden
France
French Canada
Germany
Greece
Israel
Italy
Japan441541-A41
441541-DH1
441541-051
441541-121
441541-041
441541-151
441541-BB1
441541-061
441541-291Latin America
Netherlands
Portugal...

Removal and Replacement Procedures
Maintenance and Service Guide 5–27
3. Remove the Phillips PM2.5×7.0 screw that secures the 
keyboard to the computer.
Removing the Keyboard Screw, Part 1 

5–28 Maintenance and Service Guide
Removal and Replacement Procedures
4. Turn the computer display-side up with the front panel 
toward you.
5. Open the computer as far as possible.
6. Remove the three silver Phillips PM2.5×5.0 screws that 
secure the keyboard to the computer.
Removing the Keyboard Screws, Part 2 

Removal and Replacement Procedures
Maintenance and Service Guide 5–29
7. Lift the rear edge of the keyboard 1 until it rests at an angle.
8. Slide the keyboard 2 back to disengage the tabs on the front 
edge of the keyboard from the top cover.
9. Swing the keyboard 3 forward until it rests on the palm rest.
Releasing the Keyboard 

5–30 Maintenance and Service Guide
Removal and Replacement Procedures
10. Release the ZIF connector 1 to which the keyboard cable is 
connected and disconnect the keyboard cable 2 from the 
system board.
Disconnecting the Keyboard Cable
11. Remove the keyboard.
Reverse the above procedure to install the keyboard. 

Removal and Replacement Procedures
Maintenance and Service Guide 5–31
5.12 Speaker Assembly
1. Prepare the computer for disassembly (Section 5.3).
2. Remove the switch cover (Section 5.10).
3. Remove the keyboard (Section 5.11).
4. Disconnect the speaker assembly cable 1 from the power 
button board.
5. Remove the the wireless antenna cables and microphone 
cable from the clips 2 in the speaker assembly.
Releasing the Speaker Assembly
Speaker Assembly Spare Part Number Information
Speaker assembly...

5–32 Maintenance and Service Guide
Removal and Replacement Procedures
6. Remove the two black Phillips PM2.5×5.0 screws 1 that 
secure the speaker assembly to the computer.
7. Remove the speaker assembly 2.
Removing the Speaker Assembly
Reverse the above procedure to install the speaker assembly. 

Removal and Replacement Procedures
Maintenance and Service Guide 5–33
5.13 Power Button Board
1. Prepare the computer for disassembly (Section 5.3).
2. Remove the switch cover (Section 5.10).
3. Remove the keyboard (Section 5.11).
4. Disconnect the following cables from the power 
button board:
1 Display lid switch module cable
2 Microphone cable
3 Speaker assembly cable
5. Release the ZIF connector 4 to which the power button 
board cable is connected and disconnect the cable 5.
Disconnecting the Power...

5–34 Maintenance and Service Guide
Removal and Replacement Procedures
6. Remove the silver Phillips PM2.5×5.0 screw 1 that secures 
the power button board to the computer.
7. Remove the power button board 2.
Removing the Power Button Board
Reverse the above procedure to install the power button board.