HP (Hewlett-Packard) B5R46UAR#ABA Laptop User Manual


 
5. If it is necessary to remove the optical drive board from the system board, pull the optical drive
board straight off the system board. The optical drive board is available using spare part number
519481-001 for computers with discrete graphics and 535805-001 for computers with UMA
graphics.
Reverse this procedure to install the system board.
Audio/infrared board
Description Spare part number
Audio/infrared board for use in computers with discrete graphics subsystems (includes cable) 516330-001
Audio/infrared board for use in computers with UMA graphics subsystems (includes cable) 518166-001
Before removing the audio/infrared board, 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 43).
5. Remove the following components:
a. Hard drive (see
Hard drive on page 48).
b. Optical drive (see
Optical drive on page 44).
c. Switch cover and keyboard (see
Switch cover and keyboard on page 57).
d. Speaker assembly (see
Speaker assembly on page 62).
82 Chapter 4 Removal and replacement procedures