HP Pavilion dm4, Maintenance And Service Manual, Page: 89 / 135

Bluetooth module
NOTE: The Bluetooth module cable is included in the Misc Cable Kit, spare part number
608227-001.
Description Spare part number
Bluetooth module 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 45 ).
5. Remove the following components:
a. Hard drive (see Hard drive on page 57 )
b. Optical drive (see Optical drive on page 60 )
c. Keyboard (see Keyboard on page 62 )
d. Top cover (see Top cover on page 64 )
Remove the Bluetooth module:
1. Position the computer upright with the front toward you.
2. Lift the tape near the system board connector (1) that secures the Bluetooth module cable to the
system board.
3. Disconnect the cable from the system board (2) .
Component replacement procedures 79