Lenovo H430 Desktop - Manual (Page 61)

Chapter 9. Replacing hardware
59
Replacing the external speaker
1. Remove any media (disks, CDs, or memory cards) from the drives, shut
down the operating system, and turn off the computer and all attached
devices.
2. Unplug all power cords from electrical outlets.
3. Locate the speaker. Refer to “Locating connectors on the rear of the
computer” and “Locating connectors on the front of the computer”.
Your speaker may be connected to the audio connector at either the
front or rear of the computer. Locate the connector for the speaker.
4. Disconnect the defective speaker cable from the computer and connect
the new speaker cable to the same connector.
5. Refer to the “Completing the parts replacement”.
Completing the installation
After replacing a new part or parts, you will need to close the computer
cover and reconnect all the cables, including telephone lines and power
cords. In addition, depending on the part that was replaced, you may
need to confirm the updated information in the Setup Utility program.
Refer to “Starting the Setup Utility” in the Hardware Maintenance Manual
for further information..
To complete the installation:
1. Ensure that all components have been reassembled correctly and that
no tools or loose screws are left inside your computer. Refer to “Locating
components” for the location of the various components.
2. Make sure that all cables are routed correctly before replacing the
computer cover.
3. Position the computer cover on the chassis so that the rail guides on
the bottom of the computer cover engage the rails. Then, push the
computer cover closed until it snaps into position. Screw back the two
screws on the chassis back into place.