HP ZBook 15 G2 Mobile Workstation Maintenance and Service Guide

2. Disconnect the audio/USB board (2) from the system board by lifting up on the left side of the audio/USB
board.
3. Remove the audio/USB board.
Reverse this procedure to install the audio/USB board.
USB board
Description Spare part number
USB board (includes cable and double-sided adhesive) 734293-001
Before removing the USB board, 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 battery (see Battery on page 37), and then remove the following components:
a. Service cover (see Service cover on page 38)
b. Hard drive (see Hard drive on page 39)
c. Optical drive (see Optical drive on page 41)
d. Keyboard (see Keyboard on page 50)
e. Top cover (see Top cover on page 58)
Remove the USB board:
Component replacement procedures 71