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9. Reinstall the hard disk drive. See “Replacing the hard disk drive” on page 134.
10. To complete the installation or replacement, go to “Completing the parts replacement” on page 160.
Replacing the internal speaker
Attention:
Do not open your computer or attempt any repair before reading and understanding the “Important safety information”
in the ThinkCentre User Guide. To obtain a copy of the ThinkCentre User Guide, go to:
http://www.lenovo.com/ThinkCentreUserGuides
This section provides instructions on how to replace the internal speaker.
Note: The internal speaker is only available in some models.
To replace the internal speaker, do the following:
1. Turn off the computer and disconnect all power cords from electrical outlets.
2. Open the computer cover. See “Opening the computer cover” on page 121.
3. Remove the front bezel by releasing the three plastic tabs and pivoting the front bezel outward.
Figure 94. Removing the front bezel
4. Locate the internal speaker. See “Locating components” on page 118.
5. Disconnect the internal speaker cable from the internal speaker connector on the system board. See
“Locating parts on the system board” on page 77.
Chapter 9. Replacing FRUs (Machine Types: 4466, 4471, 4474, 4477, 4480, 4485, 4496, 4498, 4503, 4512, 4514,
4518, 4554, 7005, 7023, 7033, 7035, 7072, 7079, and 7177.) 155