HP Nw9440 HP Compaq nx9420 and nx9440 Notebook PC - Maintenance and Service Gu - Page 175

USB/Audio Board, USB/Audio Board Spare Part Number Information

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Removal and Replacement Procedures 5.26 USB/Audio Board ✎ Full-featured models are equipped with a USB/audio board. Defeatured models are equipped with an audio board. The removal procedures are identical for both boards. USB/Audio Board Spare Part Number Information USB/audio board 409968-001 1. Prepare the computer for disassembly (Section 5.3), and then remove the following components: a. Hard drive (Section 5.4) b. Bluetooth module (Section 5.6) c. Optical drive (Section 5.10) d. Keyboard (Section 5.11) e. Switch cover (Section 5.15) f. LED board (Section 5.16) g. Display assembly (Section 5.22) h. Top cover (Section 5.23) i. Speaker (Section 5.24) j. Fan assembly (Section 5.17) k. Heat sink (Section 5.18) l. System board (Section 5.25) Maintenance and Service Guide 5-75

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Removal and Replacement Procedures
Maintenance and Service Guide
5–75
5.26
USB/Audio Board
✎
Full-featured models are equipped with a USB/audio board.
Defeatured models are equipped with an audio board. The
removal procedures are identical for both boards.
1. Prepare the computer for disassembly (
Section 5.3
),
and then remove the following components:
a.
Hard drive (
Section 5.4
)
b.
Bluetooth module (
Section 5.6
)
c.
Optical drive (
Section 5.10
)
d.
Keyboard (
Section 5.11
)
e.
Switch cover (
Section 5.15
)
f.
LED board (
Section 5.16
)
g.
Display assembly (
Section 5.22
)
h.
Top cover (
Section 5.23
)
i.
Speaker (
Section 5.24
)
j.
Fan assembly (
Section 5.17
)
k.
Heat sink (
Section 5.18
)
l.
System board (
Section 5.25
)
USB/Audio Board Spare Part Number Information
USB/audio board
409968-001