Lenovo ThinkCentre A58 User Manual - Page 157

6. Remove the screw that secures the front audio and USB assembly to the chassis. Figure 64. Removing the securing screw of the front audio and USB assembly 7. Remove the front audio and USB assembly from the chassis. 8. Install a new front audio and USB assembly into the chassis and align the screw hole in the new front audio and USB assembly with the hole in the chassis. 9. Install the screw to secure the new front audio and USB assembly to the chassis. 10. Reconnect the front audio and USB assembly cables to the front audio connector and the front USB connector on the system board. 11. Reinstall the hard disk drive. See "Replacing the hard disk drive" on page 136. 12. Go to "Completing the FRU replacement" on page 155. 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 This section provides instructions on how to replace the internal speaker. To replace the internal speaker: 1. Open the computer cover. See "Opening the computer cover" on page 126. Chapter 9. Replacing FRUs - 607 151