HP (Hewlett-Packard) 4720S Laptop User Manual


 
Bluetooth module
NOTE: The Bluetooth module spare part kit does not include a Bluetooth module cable. The Bluetooth
module cable is included in the Cable Kit, spare part number 599807-001. See
Cable Kits on page 33
for more Cable Kit spare part number information.
Description Spare part number
HP Integrated Bluetooth 2.1 module for use in all countries and regions except Japan and Asia
Pacific countries and regions
537921-001
Before removing the Bluetooth module, 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 Bluetooth module:
1. Position the computer right-side up with the front toward you.
2. Disconnect the Bluetooth cable (1) from the system board and from the antenna (2).
Component replacement procedures
109