Lenovo 9486F2U User Guide - Page 40

Replacing the internal speaker

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7. Remove the system fan assembly by pulling the bracket outward and lifting it up from the system board to remove completely. Figure 28. Removing the system fan assembly 8. Install a new system fan assembly and install the two screws that secure the system fan assembly. 9. Connect the system fan assembly cable to the system fan connector on the system board. 10. Reinstall the hard disk drive. 11. Go to "Completing the parts replacement" on page 35. 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 Safety and Warranty Guide that came with your computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide, go to: http://www.lenovo.com/support 32 User Guide This section provides instructions on how to replace the internal speaker. To replace the internal speaker: 1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer. 2. Remove the computer cover. See "Removing the computer cover" on page 16. 3. Remove the front bezel and drive bay assembly. See "Accessing the system board components and drives" on page 17. 4. You might have to remove the hard disk drive to gain easy access to the internal speaker. See "Replacing the hard disk drive" on page 23. 5. Locate the internal speaker connector on the system board. See "Locating parts on the system board" on page 12. 6. Disconnect the internal speaker cable from the system board.

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7.
Remove the system fan assembly by pulling the bracket outward and lifting it
up from the system board to remove completely.
8.
Install a new system fan assembly and install the two screws that secure the
system fan assembly.
9.
Connect the system fan assembly cable to the system fan connector on the
system board.
10.
Reinstall the hard disk drive.
11.
Go to “Completing the parts replacement” on page 35.
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 Safety and Warranty Guide
that came with
your computer. To obtain a copy of the
ThinkCentre Safety and Warranty Guide
, go to:
This section provides instructions on how to replace the internal speaker.
To replace the internal speaker:
1.
Remove all media from the drives and turn off all attached devices and the
computer. Then, disconnect all power cords from electrical outlets and
disconnect all cables that are connected to the computer.
2.
Remove the computer cover. See “Removing the computer cover” on page 16.
3.
Remove the front bezel and drive bay assembly. See “Accessing the system
board components and drives” on page 17.
4.
You might have to remove the hard disk drive to gain easy access to the
internal speaker. See “Replacing the hard disk drive” on page 23.
5.
Locate the internal speaker connector on the system board. See “Locating
parts on the system board” on page 12.
6.
Disconnect the internal speaker cable from the system board.
Figure 28. Removing the system fan assembly
32
User Guide