HP Pavilion dv4 Maintenance And Service Manual page 69

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
a. Memory module/wireless module compartment cover (see
b. Optical drive (see
c. Hard drive (see
d. Keyboard (see
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 and cable (see
●
TouchPad LED board and cable (see
●
TouchPad button board and cable (see
Remove the top cover:
1. Close the computer.
2. Turn the computer upside down, with the front toward you.
3. Remove the eleven Phillips PM2.5×7.0 screws that secure the top cover to the computer.
Battery on page 41), and then remove the following components:
Optical drive on page
Hard drive on page 55)
Keyboard on page 57)
Power button board on page
TouchPad LED board on page
TouchPad button board on page
WLAN module on page
52)
65)
67)
Component replacement procedures
44)
69)
61