HP 621 Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 Notebo - Page 110

Audio board

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3. Lift the modem module (2) straight up from the system board. 4. With the modem raised, disconnect the RJ-11 cable (1) from beneath the modem. 5. Remove the tape (2) that secures the cable to the system board and then, remove the cable (3). 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. 100 Chapter 4 Removal and replacement procedures

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3.
Lift the modem module
(2)
straight up from the system board.
4.
With the modem raised, disconnect the RJ-11 cable
(1)
from beneath the modem.
5.
Remove the tape
(2)
that secures the cable to the system board and then, remove the cable
(3)
.
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.
100
Chapter 4
Removal and replacement procedures