Dell XPS 12 (9Q33, Mid 2013) - Manual (Page 25)

Replacing the I/O Board
WARNING: Before working inside your computer, read the safety information
that shipped with your computer and follow the steps in "Before Working Inside
Your Computer" on page 7. After working inside your computer, follow the
instructions in "After Working Inside Your Computer" on page 9.
For more safety best practices, see the Regulatory Compliance home page at
dell.com/regulatory_compliance.
Procedure
NOTE: Make sure that the power switch is in its default position — moved towards
the back of the computer — before replacing the I/O board.
1 Align the screw holes on the I/O board with the screw holes on the palm-rest
assembly.
2 Replace the screws that secure the I/O board to the palm-rest assembly.
3 Connect the speaker cable to the I/O board.
4 Connect the I/O-board cable to the I/O board and the system board.
Postrequisites
1 Replace the battery. See "Replacing the Battery" on page 14.
2 Replace the base cover. See "Replacing the Base Cover" on page 12.
Replacing the I/O Board | 25