Hitachi 2730P manual Display assembly, a.SIM see “SIM” on page, c.Keyboard see “Keyboard” on page

Removal and replacement procedures

Display assembly

✎The display assembly spare part kit includes an ambient light sensor, fingerprint reader, logo, 2 microphones, nameplate, 2 WLAN antenna transceivers and cables, and 2 WWAN antenna transceivers and cables.

Description	Spare part number
12.1-inch, WXGA LED display assembly with webcam and outdoor light	504172-001
12.1-inch, WXGA LED display assembly with webcam	504170-001
12.1-inch, WXGA LED display assembly with outdoor light	504171-001
12.1-inch, WXGA LED display assembly	504169-001

Before removing the display assembly, 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 4-8).

5.Remove the following components:

a.SIM (see “SIM” on page 4-9)

b.Hard drive cover (see “Hard drive” on page 4-10)

c.Keyboard (see “Keyboard” on page 4-17)

d.Hinge cover (see “Hinge cover” on page 4-20)

e.Top cover (see “Top cover” on page 4-21)

Maintenance and Service Guide 4–27