Lenovo ThinkStation P300 - Manual (Page 93)

• To complete the installation or replacement, go to “Completing the parts replacement” on page 111.
Replacing the front audio and USB assembly
Attention: Do not open your computer or attempt any repair before reading and understanding the “Read
this first: Important safety information” on page v.
To replace the front audio and USB assembly, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 71.
3. Remove the front bezel. See “Removing and reinstalling the front bezel” on page 72.
4. Locate the front audio and USB assembly. See “Locating components” on page 5.
5. Note the cable routing and connection. Then, disconnect the front audio and USB assembly cables
from the system board. See “Locating parts on the system board” on page 6.
6. Remove the screw that secures the front audio and USB assembly and slide the front audio and USB
assembly to the right as shown to remove it from the chassis.
Figure 24. Removing the front audio and USB assembly
7. Route the cables of the new front audio and USB assembly through the corresponding square hole in
the front of the chassis. Then position the new front audio and USB assembly into the chassis and slide
it to the left as shown. Install the screw to secure the new front audio and USB assembly in place.
Figure 25. Installing the front audio and USB assembly
Chapter 9 . Installing or replacing hardware 81