HP ProBook 4520s HP ProBook 4520s Notebook PC and HP ProBook 4720s Notebook PC - Page 116
Remove the top cover see, Remove the hard drive see
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Before removing the RJ-11 connector 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 the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 50). 5. Remove the switch cover and keyboard (see Switch cover and keyboard on page 51). 6. Remove the optical drive (see Optical drive on page 56). 7. Remove the power button board cable (see Power button board on page 58). 8. Remove the speakers (see Speakers on page 60). 9. Remove the thermal shield (see Thermal shield on page 62). 10. Remove the display assembly (see Display assembly on computers with 17.3-in displays on page 80 or Display assembly on computers with 15.6-in displays on page 86). 11. Remove the palm rest (see Palm rest on page 76). 12. Remove the hard drive (see Hard drive on page 78). 13. Remove the top cover (see Top cover on page 92). Remove the RJ-11 connector assembly: 1. Position the computer right-side up with the right side toward you. 2. Disconnect the cable from the system board (1) and remove the cable from the routing channel in the base enclosure. 108 Chapter 4 Removal and replacement procedures