HP Envy 4 Manual

2.Remove the cover (2).
Media card reader assembly (smart card reader)
DescriptionSpare part number
Media card reader assembly (smart card reader) 687097–001
Before removing the media reader 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...

2.Disconnect the cable (3), and then remove the media card reader (4).
Subwoofer
Description Spare part number
Subwoofer 686586–001
Before removing the USB/Audio board, 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...

3.Remove the subwoofer (3).
Security bracket
Description Spare part number
Security bracket (included in power connector kit) 686577-001
Before you remove the security bracket, 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...

2.Remove the security bracket (2).
USB/Audio board
Description Spare part number
USB/Audio board 686584–001
Before removing the USB/Audio board, 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...

Remove the USB/Audio board:
1.Disconnect the USB/Audio board cable from the system board (1)
2.Disconnect the Phillips PM 2.0x2.0 screw securing the USB/Audio board (2).
3.Remove the USB/Audio board (3).
Power connector cable
DescriptionSpare part number
Power connector cable (includes bracket) 686577–001
Before removing the power connector cable, 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...

8.Remove the security bracket (see Security bracket on page 55
9.Remove the USB/Audio board (see 
USB/Audio board on page 56).
Remove the power connector cable:
1.Turn the computer, with the right side toward you.
2.Disconnect the power connector cable (1) from the system board.
3.Remove the double-sided tape (2) from the power connector.
4.Remove the power connector cable (3).
Reverse this procedure to install the power connector cable and bracket.
Speakers
DescriptionSpare part number
Speaker Kit...

4.Remove the display panel (see Display panel on page 31).
5.Remove the base enclosure (see 
Base enclosure on page 33).
6.Disconnect the battery cable (see 
Battery on page 35).
Remove the speakers:
1.Turn the computer, with the front edge toward you.
2.Release the 2 Phillips PM 2.0×3.0 screws securing each speaker. (1)
3.Remove the speakers and cables (2).
Reverse this procedure to install the speakers.
Power button board
Description Spare part number
Power button board 688000-001
Before removing the...

5.Remove the base enclosure (see Base enclosure on page 33).
6.Disconnect the battery cable (see 
Battery on page 35).
Remove the Power button board and cable:
1.Turn the top cover upside down, with the back edge toward you.
2.Remove the 2 Phillips PM 2.0x3x0 screws securing the Power button board to the top cover (1).
3.Remove the Power button board (2).
NOTE:The Power button boards cable is attached to the board.
Keyboard
NOTE:The keyboard spare part kit includes a keyboard cable.
For use in country or...

For use in country or region: Spare part number: For use in country or region: Spare part number:
For use in The Netherlands 686836–B31 For use in India 686836-D61
For use in German 686836-041 For use in Turkey 686836-141
For use in Brazil 686836-201 For use in Belgium 686836-A41
Backlit keyboard in black finish
For use in the United States 687009–001 For use in Spain 687009–071
For use in Latin America 687009–161 For use in Saudi Arabia 687009–171
For use in Belgium 687009-A41 For use in the Netherlands...

Remove the keyboard:
1.Turn the computer right-side up with the front facing you.
2.Remove the 16 Phillips PM 2x3 screws.
3.Remove the single screw (1), and then release the keyboard and keyboard bracket from the top
cover (2).
62 Chapter 4   Removal and replacement procedures