Lenovo ThinkStation 4223, Руководство пользователя

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Note: The internal speaker is only available on some models.
To replace the internal speaker, do the following:
1. Turn off the computer and disconnect all power cords from electrical outlets.
2. Remove the computer cover. See “Removing the computer cover” on page 30.
3. Locate the internal speaker connector and disconnect the internal speaker cable form the system board.
See “Locating parts on the system board” on page 10.
4. Press the tab 3 inward and slide the internal speaker 1 upward to completely remove it from the chassis.
Figure 40. Removing the internal speaker
5. Position the new internal speaker to insert the two tabs
2
into the corresponding holes in the chassis,
and then push downward the internal speaker until it is secured in place.
6. Connect the internal speaker cable to the system board. See “Locating parts on the system board”
on page 10.
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 56.
Replacing the keyboard or mouse
Attention: Do not open your computer or attempt any repair before reading and understanding the “Important
safety information” on page v.
Chapter 5
.
Installing or replacing hardware
55