HP Presario CQ40-200 Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 82

Audio board

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4. Lift up on the front of the modem module (3) to disconnect it from the system board. 5. Remove the modem module. Reverse the above procedure to install the modem module, and be sure that the connector on the bottom of the modem module connects firmly into the system board. Audio board Description Audio board (includes audio connectors and audio board cable) Spare part number 487344-001 Before removing the audio board, follow these steps: 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 unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 41). 5. Remove the following components: a. Hard drive (see Hard drive on page 44) b. Optical drive (see Optical drive on page 42) c. Keyboard (see Keyboard on page 54) d. Switch cover (see Switch cover on page 56) e. Speaker assembly (see Speaker assembly on page 58) f. Display assembly (see Display assembly on page 60) g. Top cover (see Top cover on page 67) 74 Chapter 4 Removal and replacement procedures

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4.
Lift up on the front of the modem module
(3)
to disconnect it from the system board.
5.
Remove the modem module.
Reverse the above procedure to install the modem module, and be sure that the connector on the bottom
of the modem module connects firmly into the system board.
Audio board
Description
Spare part number
Audio board (includes audio connectors and audio board cable)
487344-001
Before removing the audio board, follow these steps:
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 unplugging the power cord from the AC outlet and
then unplugging the AC adapter from the computer.
4.
Remove the battery (see
Battery
on page
41
).
5.
Remove the following components:
a.
Hard drive (see
Hard drive
on page
44
)
b.
Optical drive (see
Optical drive
on page
42
)
c.
Keyboard (see
Keyboard
on page
54
)
d.
Switch cover (see
Switch cover
on page
56
)
e.
Speaker assembly (see
Speaker assembly
on page
58
)
f.
Display assembly (see
Display assembly
on page
60
)
g.
Top cover (see
Top cover
on page
67
)
74
Chapter 4
Removal and replacement procedures