HP V3705TU, V3523TU, V3930TU, V3931TU, V3929TU Audio board, a. Hard drive see Hard drive on page

3. Lift up on the front of the modem module (3) to disconnect it from the system board.

4. Remove the modem module.

Reverse the above procedure to install the modem module.

Audio board

Description	Spare part number
Audio board for use only in full-featured computer models without a camera module (includes audio	448627-001
connectors, infrared lens, and audio board cable)
Audio board for use only in defeatured computer models with AMD processors and without a camera	459157-001
module (includes audio connectors, infrared lens, and audio board cable)
Audio board for use only in full-featured computer models with a camera module (includes audio	463974-001
connectors, infrared lens, and audio board cable)
Audio board for use only in defeatured computer models with AMD processors and with a camera	463975-001
module (includes audio connectors, infrared lens, and audio board cable)

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 53).

5. Remove the following components:

a. Hard drive (see Hard drive on page 54)

b. WLAN cover (see WLAN module on page 57)

c. Optical drive (see Optical drive on page 64)

88 Chapter 4 Removal and replacement procedures