Dell Latitude XT PP12S User Manual page 141

3 If the Tablet-PC is connected to a docking device (docked), undock it. See
"Undocking Your Tablet-PC From the Media Base" on page 194, or
"Undocking Your Tablet-PC From the Battery Slice" on page 202.
NOTICE:
To disconnect a network cable, first unplug the cable from your Tablet-PC
and then unplug the cable from the network device.
4 Disconnect all network cables from the Tablet-PC.
NOTICE:
To avoid damaging the system board, you must remove the main battery
before you service the Tablet-PC.
5 Disconnect your Tablet-PC and all attached devices from their electrical
outlets.
6 Close the display and turn the Tablet-PC upside-down on a flat work
surface.
7 Remove the main battery (see "Removing the Main Battery" on page 143).
8 Turn the Tablet-PC top-side up.
9 Open the display.
10 Press the power button to ground the system board.
CAUTION:
To guard against electrical shock, always unplug your Tablet-PC from
the electrical outlet before opening the display.
NOTICE:
Before touching anything inside your Tablet-PC, ground yourself by
touching an unpainted metal surface, such as the metal at the back of the Tablet-
PC. While you work, periodically touch an unpainted metal surface to dissipate
static electricity, which could harm internal components.
11 Remove any installed ExpressCards or Smart Cards from the appropriate
slots (see "Removing an ExpressCard" on page 84).
12 Remove the hard drive (see "Removing the Hard Drive" on page 145).
Adding and Replacing Parts
141