HP dv7-6b56nr A1T84UAR#ABA manual USB board

Removal and replacement procedures

USB board

Description	Spare part number
USB board (includes cable)	518168-001

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 4-7).

5.Remove the following components:

a.Primary and secondary hard drive covers (see “Hard drive covers” on page 4-9)

b.Primary and secondary hard drives (see “Hard drive” on page 4-12)

c.Optical drive (see “Optical drive” on page 4-8)

d.Switch cover and keyboard (see “Switch cover and keyboard” on page 4-21)

e.Speaker assembly (see “Speaker assembly” on page 4-26)

f.Display assembly (see “Display assembly” on page 4-28)

g.Top cover (see “Top cover” on page 4-37)

Remove the USB board:

1.Disconnect the USB board cable from the connector 1 on the system board.

2.Remove the Phillips PM2.5×5.0 screw 2 that secures the USB board to the base enclosure.

3.Remove the USB board 3 from the base enclosure.

Reverse this procedure to install the USB board.

4–46 Maintenance and Service Guide