Lenovo ThinkCentre 3029 User Manual page 44

2. Remove the computer cover. See "Removing the computer cover" on page 14.
3. Locate the internal speaker connector on the system board. See "Locating parts on the system board"
on page 10.
4. Disconnect the internal speaker cable from the system board.
5. Push the metal tab 1
completely remove it from the chassis.
Figure 33. Removing the old internal speaker
6. Position the new internal speaker into the four metal clips
until it is secured in place.
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ThinkCentre User Guide
on the top of the internal speaker outward and slide the internal speaker upward to
1 and push downward on the internal speaker