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Replacing the front audio and USB assembly - ThinkCentre M90 (type 3245, 3491), M90p (type 3269)

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 the Lenovo Support Website.

This section provides instructions on how to replace the front audio and USB assembly.

To replace the front audio and USB assembly, do the following:

  1. Turn off the computer and disconnect all power cords from electrical outlets.
  2. Open the computer cover. See "Opening the computer cover".
  3. Pivot the optical drive bay assembly upward to gain access to the front audio and USB assembly.
  4. Locate the front audio and USB assembly.
  5. Disconnect the front audio and USB assembly cables from the system board. See "Locating parts on the system board".
    Note: Make sure you note the locations of the cables when you disconnect the cables from the system board.
  6. Remove the screw that secures the front audio and USB assembly to the chassis.

Removing the securing screw of the front audio and USB assembly

  1. Remove the front audio and USB assembly from the chassis.
  2. Install a new front audio and USB assembly into the chassis and align the screw hole in the front audio and USB assembly with the hole in the chassis.
  3. Install the screw to secure the new front audio and USB assembly to the chassis.
  4. Reconnect the front audio and USB assembly cables to the front audio connector and the front USB connector on the system board. See "Locating parts on the system board".
  5. Go to "Completing the parts replacement".
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  • Alias ID: MIGR-74850
  • Document ID: PD012605
  • Last Updated :6/17/2014
  • (c) 2014 Lenovo