Lenovo THINKCENTRE 4473 - Manual (Page 77)

6. Position the new internal speaker into the four metal clips 1 and push downward on the internal speaker
until it is secured in place.
Figure 47. Installing a new internal speaker
7. Connect the internal speaker cable to the system board. See “Locating parts on the system board”
on page 12.
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to “Completing the parts replacement” on page 64.
Replacing the keyboard or mouse
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 keyboard or mouse.
To replace the keyboard or mouse, do the following:
1. Remove any media from the drives. Then, turn off all attached devices and the computer.
2. Disconnect all power cords from electrical outlets.
3. Disconnect the old keyboard cable or mouse cable from the computer.
Chapter 5 . Installing or replacing hardware 63