HP EliteBook 840 G4 Notebook PC HP EliteBook 848 G4 Notebook PC Maintenance and Service Guide

Speaker assembly
Description Spare part number
Speaker assembly (includes cable) 821170-001
Before removing the speaker assembly, follow these steps:
1. Turn o the computer. If you are unsure whether the computer is o or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the bottom cover (see Bottom cover on page 32).
5. Remove the battery (see Battery on page 36).
6. Remove the keyboard (see Keyboard on page 47).
7. Remove the internal base plate (see Internal base plate on page 50)
8. Remove the system board (see System board on page 62).
Remove the speaker assembly:
1. Remove the antennas from the clip in the speaker assembly (1).
2. Use a thin tool to pry the middle of the speaker assembly up to disengage the adhesive that secures it to
the computer (2), and then remove the speaker assembly (3) from the computer.
Reverse this procedure to install the speakers.
66 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts