Lenovo ThinkCentre M92z Hardware Maintenance Manual - ThinkCentre M92z (type 3 - Page 101

Replacing the internal speakers

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11. Lower the new microprocessor straight down into the microprocessor socket on the system board. Figure 26. Installing the microprocessor 12. Close the microprocessor retainer and lock it into position with the small handle to secure the new microprocessor in the socket. 13. Reinstall the heat sink. See "Replacing the heat sink" on page 93. 14. Reconnect all cables that were disconnected from the system board. What to do next: • To work with another piece of hardware, go to the appropriate section. • To complete the replacement, go to "Completing the parts replacement" on page 127. Replacing the internal speakers Attention: Do not open your computer or attempt any repair before reading and understanding "Important Safety Information" on page 1. This section provides instructions on how to replace the internal speakers. To replace the internal speakers, do the following: 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. Place a soft, clean towel or cloth on the desk or surface. Hold the sides of your computer and gently lay it down so that the screen is against the surface and the cover is facing up. 3. Remove the computer cover. See "Removing the computer cover" on page 83. 4. Locate the internal speakers. See "Locating major FRUs and CRUs (for models with the 20-inch display)" on page 73 or "Locating major FRUs and CRUs (for models with the 23-inch display)" on page 76. 5. Note the location of the internal speaker cable connection. Note the routing of the internal speaker cables. Disconnect the internal speaker cables from the system board. Chapter 9. Replacing FRUs 97

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11. Lower the new microprocessor straight down into the microprocessor socket on the system board.
Figure 26. Installing the microprocessor
12. Close the microprocessor retainer and lock it into position with the small handle to secure the new
microprocessor in the socket.
13. Reinstall the heat sink. See “Replacing the heat sink” on page 93.
14. Reconnect all cables that were disconnected from the system board.
What to do next:
•
To work with another piece of hardware, go to the appropriate section.
•
To complete the replacement, go to “Completing the parts replacement” on page 127.
Replacing the internal speakers
Attention:
Do not open your computer or attempt any repair before reading and understanding “Important Safety Information”
on page 1.
This section provides instructions on how to replace the internal speakers.
To replace the internal speakers, do the following:
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. Place a soft, clean towel or cloth on the desk or surface. Hold the sides of your computer and gently lay
it down so that the screen is against the surface and the cover is facing up.
3. Remove the computer cover. See “Removing the computer cover” on page 83.
4. Locate the internal speakers. See “Locating major FRUs and CRUs (for models with the 20-inch display)”
on page 73 or “Locating major FRUs and CRUs (for models with the 23-inch display)” on page 76.
5. Note the location of the internal speaker cable connection. Note the routing of the internal speaker
cables. Disconnect the internal speaker cables from the system board.
Chapter 9
.
Replacing FRUs
97