HP ProBook 4520s Maintenance And Service Manual page 108

7. Remove the power button board cable (see
8. Remove the speakers (see
9. Remove the thermal shield (see
10. Remove the display assembly (see
on page 80
11. Remove the palm rest (see
12. Remove the hard drive (see
13. Remove the top cover (see
Remove the modem module:
1. Position the computer right-side up with the front toward you.
2. Remove the two Phillips PM2.5×3.0 screws (1) that secure the modem module to the system
board.
3. Lift the modem module (2) straight up from the system board.
4. Disconnect the modem module cable (3). The modem module cable is spared in the Cable kit
spare part number 599807-001.
5. Remove the modem module.
Reverse this procedure to install the modem module.
100 Chapter 4 Removal and replacement procedures
Speakers on page
Thermal shield on page
Display assembly on computers with 17.3-in displays
or Display assembly on computers with 15.6-in displays on page
Palm rest on page
Hard drive on page
Top cover on page
Power button board on page
60).
62).
76).
78).
92).
58).
86).