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Step 9.
To install the new speaker system:
a.
Slide in the rubber screws of the new speaker system into the screw slots in the chassis.
b.
Connect the cable to the motherboard.
Step 10. Reattach the motherboard frame, rear cover and stand base.
Replacing the Microphone module
Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover.
Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo
recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches
or other damage.
To replace the speaker system:
Step 1.
Remove any media from the drives, shut down the operating system, and turn off the computer and
all attached devices.
Step 2.
Unplug all power cords from electrical outlets.
Step 3.
Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)
cables, and any other cables that are connected to the computer. Refer to Locating connectors,
controls and components to locate the various connectors.
Step 4.
Remove the stand base. Refer to Removing the stand base.
Step 5.
Remove the rear cover. Refer to Removing the rear cover.
Step 6.
Remove the motherboard frame. Refer toRemoving the motherboard frame
Step 7.
Remove the speaker system. Refer toReplacing the speaker system
Step 8.
Disconnect the microphone module cable from the connector on the motherboard, and remove the
screw that secures the microphone module to the chassis.
Step 9.
Lift up the microphone module to remove it.
.
Chapter 8
Replacing hardware
55
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