Dell XPS 13 (L322X, Early 2013) - Manual (Page 41)

Postrequisites
1 Replace the fan. See "Replacing the Fan" on page 33.
2 Replace the power-adapter connector. See "Replacing the Power-Adapter
Connector" on page 37.
3 Replace the speakers See "Replacing the Speakers" on page 22.
4 Replace the battery. See "Replacing the Battery" on page 18.
5 Replace the power-light board. See "Replacing the Power-Light Board" on
page 16.
6 Replace the base cover. See "Replacing the Base Cover" on page 14.
7 Follow the instructions in "After Working Inside Your Computer" on page 11.
I/O Board 41