Lenovo ThinkCentre M77 Hardware Maintenance Manual (HMM) - ThinkCentre M77 - Page 95

Replacing the card reader 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://support.lenovo.com To replace the card reader, 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 79. 3. Remove the front bezel. See "Removing and reinstalling the front bezel" on page 80. 4. Locate the card reader. See "Locating components" on page 76. 5. Disconnect the card reader cable from the USB connector on the system board. See "Locating parts on the system board" on page 77. 6. Press the blue retaining clip to remove the card reader out of the chassis. Figure 22. Removing the card reader 7. Install the card reader retainer on the side of the new card reader. Figure 23. Installing the card reader retainer Chapter 8. Replacing FRUs (Machine Types: 1982, 1983, 1985, 1986, 1987, 1990, 1992, 1993, 1994, and 1995.) 91