HP ProBook 4525s Notebook PC - Maintenance and Service Guide

Speakers
Description Spare part number
For use in computers with 15.6-in displays 598685-001
Before removing the speakers, 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 48).
5. Disconnect the power button cable from the system board (see
Power button board on page 56).
Remove the speakers from the 15.6-in computer:
1. Remove the two PM2.5x6.0 screws (1) that secure the speakers to the top cover.
2. Disconnect the speaker cable connector (2) from the system board.
3. Remove the cables from the routing channels and the speakers (3) from the computer.
Reverse this procedure to install the speakers.
58 Chapter 4 Removal and replacement procedures