HP CQ40-416TU, CQ40-417TU, CQ40-408AU, CQ40-404AX manual USB board, Description Spare part number

USB board

Description	Spare part number
USB board	486842-001
USB board cable	486843-001

Before removing the USB 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 34).

5.Remove the following components:

a.Hard drive (see Hard drive on page 36)

b.Optical drive (see Optical drive on page 35)

c.Keyboard (see Keyboard on page 44)

d.Keyboard cover (see Keyboard cover on page 46)

e.Speaker assembly (see Speaker assembly on page 49)

f.Display assembly (see Display assembly on page 51)

g.Top cover (see Top cover on page 59)

Remove the USB board:

1.Turn the computer display-side up, with the right side toward you.

2.Disconnect the USB board cable (1) from the system board.

3.Remove the cable from the base enclosure clips (2).

4.Remove the Phillips PM2.5×3.0 screw (3) that secures the USB board to the computer.

70 Chapter 4 Removal and replacement procedures