Audio Board - HP ProBook 4540s Maintenance And Service Manual

Audio board

Description
Audio board (includes cable)
Before removing the audio 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
5. Remove the following components:
a. Bottom door (see
b. Keyboard (see
c. Top cover (see
Remove the audio board:
1. Position the top cover upside-down.
2. Disconnect the smaller touchpad button cable (1).
3. Remove the Phillips PM2.0×4.0 screw (2) that secures the audio board to the computer.
4. Rotate the top of the board upward, pull the board away from the connectors (to remove them
from top cover holes), and then lift the board off the top cover (3).
Battery on page 55).
Bottom door on page
Keyboard on page 70)
Top cover on page 82)
58).
Component replacement procedures
Spare part number
683475-001
95