HP ProBook 4525s Notebook PC - Maintenance and Service Guide

8. Remove the screw (1) that secures the USB to the computer, disconnect the cable (2) from the
system board and then, remove the device (3) from the computer.
Reverse this procedure to install the system board.
USB connector assembly
The USB connector assembly is included in the Cable Kit, spare part number 613224-001 for
computers with 15.6-in displays.
Before removing the USB connector assembly, 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. Remove the switch cover and keyboard (see
Switch cover and keyboard on page 49).
6. Remove the optical drive (see
Optical drive on page 54).
7. Remove the power button board cable (see
Power button board on page 56).
8. Remove the speakers (see
Speakers on page 58).
9. Remove the thermal shield (see
Thermal shield on page 59).
94 Chapter 4 Removal and replacement procedures