Audio Board - HP 640 ProBook G3 Series Maintenance And Service Manual

Audio board

Description
Audio board
IMPORTANT:
replacement
Before removing the audio board, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off 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 following components:
a. Service door (see
b. Remove the battery (see
c. Hard drive (see
d. Solid-state drive (see
e. Optical drive (see
f. Keyboard (see
g. Hinge covers (see
h. Base enclosure (see
i. System board (see
j. Fan/heat sink assembly (see
k. Top cover (see
Remove the audio board:
▲ Remove 2 M2x3L P1 screws (1), and then remove the audio board (2).
76 Chapter 5 Removal and replacement procedures for Authorized Service Provider parts
Make special note of each screw and screw lock size and location during removal and
Service door on page
Battery on page
Hard drive on page
Solid-state drive (select products only) on page
Optical drive on page
Keyboard on page
Hinge cover on page
Base enclosure on page
System board on page
Fan and heat sink assembly on page
Top cover and TouchPad on page
37).
38)
39).
45).
47).
53).
55).
57).
63).
Spare part number
917458-001
41).
59).