HP ProBook 6455b, 6555b, 6450b and 6550b Notebook PCs Maintenance and Service Guide

5. Disconnect the antenna cables from the WLAN (see WLAN module on page 83) and WWAN
modules (see
WWAN module on page 86).
6. Remove the keyboard (see
Keyboard on page 90).
7. Remove the switch cover (see
Switch cover on page 97).
Remove the display assembly:
1. Close the computer.
2. Position the computer with the rear panel toward you.
3. Remove the four slotted Torx T8M2.5×11.0 screws that secure the display assembly to the
computer.
4. Turn the computer display-side up, with the front toward you.
5. Open the computer as far as it will open.
6. Disconnect the microphone cable (1) from the system board.
7. Remove the microphone cable from the clips and routing channel (2) built into the top cover.
Component replacement procedures 109