HP ZBook 15 G2 Mobile Workstation Maintenance and Service Guide

Reverse this procedure to install the power button board.
ExpressCard assembly
Description Spare part number
ExpressCard assembly (includes activity LEDs and Thunderbolt port, Dual Mode DisplayPort, and USB
port)
794579-001
Before removing the ExpressCard 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 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 ExpressCard assembly:
1. Remove the Torx T8M2.5×4.5 screw (1) that secures the system lens to the base enclosure.
2. Remove the system lens (2).
The system lens is available in the Plastics Kit, spare part number 734297-001.
3. Remove the three Torx T8M2.5×4.5 screws (3) that secure the ExpressCard assembly to the
base enclosure.
4. Disconnect the ExpressCard assembly (4) from the system board by lifting up on the right side of the
assembly.
Component replacement procedures 67