Lenovo 4215, 4220, 4222, 4219, 4221 manual Replacing the internal speaker

5.Disconnect the front audio and USB assembly cables from the system board. See “Locating parts on the system board” on page 71.

Note: Make sure you note the locations of the cables when you disconnect the cables from the system board.

6.Remove the screw that secures the front audio and USB assembly to the chassis.

Figure 38. Removing the securing screw of the front audio and USB assembly

7.Remove the front audio and USB assembly from the chassis.

8.Install a new front audio and USB assembly into the chassis and align the screw hole in the front audio and USB assembly with the hole in the chassis.

9.Install the screw to secure the new front audio and USB assembly to the chassis.

10.Reconnect the front audio and USB assembly cables to the front audio connector and the front USB connector on the system board. See “Locating parts on the system board” on page 71.

11.To complete the installation or replacement, go to “Completing the FRU replacement” on page 103.

Replacing the internal speaker

Attention

Do not open your computer or attempt any repair before reading and understanding the “Important safety information” in the ThinkStation Safety and Warranty Guide that came with your computer. To obtain a copy of the ThinkStation Safety and Warranty Guide, go to:http://www.lenovo.com/support

This section provides instructions on how to replace the internal speaker.

Note: Not all computers have the internal speaker.

To replace the internal speaker, do the following:

Chapter 9. Replacing FRUs 101