Audio Board - HP 320 - Notebook PC Maintenance And Service Manual

Compaq 320, 321, 420, 421, 620 and 621 notebook pcs hp 420 and 620 notebook pcs - maintenance and service guide
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Reverse this procedure to install the modem module.

Audio board

NOTE:
The spare part number for the audio board is 598684-001.
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
5.
Remove the service door (see
6.
Remove the hard drive (see
7.
Remove the optical drive (see
8.
Remove the fan (see
9.
Remove the palm rest (see
10.
Remove the keyboard (see
11.
Remove the top cover (see
12.
Remove the system board
Remove the audio board from 39.6-cm (15.6-in) computers:
1.
Position the computer right-side up with the front toward you.
Battery on page
53).
Service door on page
Hard drive on page
Optical drive on page
Fan on page
64).
Palm rest on page
Keyboard on page
Top cover on page
(seeSystem board on page
53).
56).
62).
68).
73).
77).
96).
Component replacement procedures 105

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