HP ProBook 640 G2 Notebook PC, HP ProBook 645 G2 Notebook PC, HP ProBook 650 G2 Notebook PC and HP ProBook 655 G2 Notebook PC - Maintenance and Service Guide

f. WLAN module (see WLAN module on page 44).
g. Optical drive (see Optical drive on page 46).
h. Keyboard (see Keyboard on page 48).
i. Hinge covers (see Hinge cover on page 55).
j. Base enclosure (see Base enclosure on page 57).
k. System board (see System board on page 59).
l. Fan/heat sink assembly (see Fan and heat sink assembly on page 61).
m. Top cover (see Top cover and TouchPad on page 65).
Remove the power button board:
▲
Remove the 2 M2x3L, P1 screws (1), release the power button power button board cable (2), and them
remove the power button board (3):
Reverse this procedure to install the power button board.
Fingerprint reader (select products only)
NOTE: The ngerprint reader spare part kit includes the cable
Description Spare part number
Fingerprint reader
For 14" products 840664-001
For 15" products 840735-001
72 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts