HP 640 ProBook G3 Notebook PC & HP 650 ProBook G3 Notebook PC - Maintenance and Service Guide

Optical drive board
Description Spare part number
Optical drive board
For products with an optical drive 840745-001
For products with an optical drive and a serial port (select products only) 840746-001
IMPORTANT: Make special note of each screw and screw lock size and location during removal and
replacement
Before removing the optical drive board, follow these steps:
1. Shut down the computer.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by rst unplugging the power cord from the AC outlet and then
unplugging the AC adapter from the computer.
4. Remove the following components:
a. Service door (see Service door on page 37).
b. Remove the battery (see Battery on page 38)
c. Hard drive (see Hard drive on page 39).
d. Solid-state drive (see Solid-state drive (select products only) on page 41).
e. WWAN module (see WWAN module (select products only) on page 42).
f. WLAN module (see WLAN module on page 43).
g. Optical drive (see Optical drive on page 45).
h. Keyboard (see Keyboard on page 47).
i. Hinge covers (see Hinge cover on page 53).
j. Base enclosure (see Base enclosure on page 55).
k. System board (see System board on page 57).
l. Fan/heat sink assembly (see Fan and heat sink assembly on page 59).
Remove the optical drive board:
▲
Disconnect the optical drive board cable (1), and then remove the optical drive board (2).
62 Chapter 5 Removal and replacement procedures for Authorized Service Provider parts