HP (Hewlett-Packard) 4720S Laptop User Manual


 
RJ-11 connector assembly
NOTE: The RJ-11 connector assembly is included in the Base Cable Kit, spare part number
603188-001 for 17.3-in computers and 599807-001 for 15.6-in computers.
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 55).
5. Remove the switch cover and keyboard (see
Switch cover and keyboard on page 56).
6. Remove the optical drive (see
Optical drive on page 61).
7. Remove the power button board cable (see
Power button board on page 63).
8. Remove the speakers (see
Speakers on page 65).
9. Remove the thermal shield (see
Thermal shield on page 67).
10. Remove the display assembly (see
Display assembly on computers with 17.3-in displays
on page 89 or Display assembly on computers with 15.6-in displays on page 96).
11. Remove the palm rest (see
Palm rest on page 84).
12.
Remove the hard drive (see
Hard drive on page 87).
13. Remove the top cover (see
Top cover on page 103).
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.
Component replacement procedures
119