Lenovo H430 Desktop User Manual download pdf (Page 61)

Chapter 9. Replacing hardware

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.

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Lenovo H430 Desktop User Manual Page 61