HP Compaq 6520s Maintenance And Service Manual page 79

Remove the battery (see
4.
Remove the following components:
5.
Hard drive (see
a.
Optical drive (see
b.
Keyboard (see
c.
Switch cover (see
d.
Speaker (see
e.
Display lid switch module (see
f.
Display assembly (see
g.
Top cover (see
h.
System board (see
i.
Remove the modem module:
Turn the system board upside down, with the USB connectors toward you.
1.
Remove the two Phillips PM2.5×4.0 screws (1) that secure the modem module to the system board.
2.
Lift the modem module (2) straight up to disconnect it from the system board.
3.
Remove the modem module.
4.
Reverse this procedure to install the modem module.
Battery on page 34).
Hard drive on page
Optical drive on page
Keyboard on page 43)
Switch cover on page
Speaker on page 47)
Display lid switch module on page
Display assembly on page
Top cover on page 54)
System board on page
35)
41)
45)
49)
62)
Component replacement procedures
48)
71