Audio Board - HP Pavilion DV4-2155 Maintenance And Service Manual

Removal and replacement procedures

Audio board

Description
Audio board
Audio board cable
Before removing the audio board:
1. Shut down 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 all external devices connected to the computer.
3. Disconnect the power from the computer by first disconnecting the power cord from the AC outlet and then
disconnecting the AC adapter from the computer.
4. Remove the battery (see
5. Remove the following components:
a. Hard Drive (see
b. Mini Card compartment cover (see
c. Mini Card bracket (see
d. Optical drive (see
e. Keyboard (see
f. Keyboard cover (see
g. Speaker assembly (see
h. Display assembly (see
i. Top cover (see
4–44
"Battery" on page
"Hard Drive" on page 4-8)
"RTC battery" on page
"WLAN module" on page
"Optical drive" on page
"Keyboard" on page 4-20)
"Keyboard cover" on page
"Speaker assembly" on page
"Display assembly" on page
"Top cover" on page 4-34)
4-7).
4-12)
4-15)
4-19)
4-23)
4-26)
4-27)
Spare part number
486840-001
486841-001
Maintenance and Service Guide