Lenovo ThinkCentre M78 User Manual page 81

This section provides instructions on how to replace the internal speaker.
Note: The internal speaker is only available on some models.
To replace the internal speaker, do the following:
1. Turn off the computer and disconnect all power cords from electrical outlets.
2. Remove the computer cover. See "Removing the computer cover" on page 38.
3. Locate the internal speaker connector on the system board. See "Locating parts on the system board"
on page 13.
4. Disconnect the internal speaker cable from the system board.
5. Push the metal tab
right to completely remove it from the chassis.
Figure 48. Removing the old internal speaker
1 on the right side of the internal speaker and slide the internal speaker toward the
.
Chapter 5 Installing or replacing hardware
69