Lenovo ThinkCentre A70 Hardware Maintenance Manual for ThinkCentre A70 - Page 96

Replacing the front audio and USB assembly, Removing the card reader

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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 71. 3. Remove the front bezel. See "Removing and reinstalling the front bezel" on page 72. 4. Disconnect the card reader cable from the USB connector on the system board. See "Locating parts on the system board" on page 69. 5. Note the card reader cable routing and remove the screw that secures the card reader. Then, remove the card reader from the chassis. Figure 28. Removing the card reader 6. Position the new card reader to the chassis so that the screw hole in the new card reader is aligned with the corresponding hole in the chassis. 7. Install the screw to secure the new card reader in place. 8. Connect the new card reader cable to the USB connector on the system board and properly route the cable of the new card reader. See "Locating parts on the system board" on page 69. 9. Reinstall the front bezel. See "Removing and reinstalling the front bezel" on page 72. 10. To complete the replacement, go to "Completing the parts replacement" on page 94. Replacing the front audio and USB assembly 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 front audio and USB assembly. To replace the front audio and USB assembly, do the following: 90 ThinkCentre Hardware Maintenance Manual

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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 71.
3. Remove the front bezel. See “Removing and reinstalling the front bezel” on page 72.
4. Disconnect the card reader cable from the USB connector on the system board. See “Locating parts on
the system board” on page 69.
5. Note the card reader cable routing and remove the screw that secures the card reader. Then, remove
the card reader from the chassis.
Figure 28. Removing the card reader
6. Position the new card reader to the chassis so that the screw hole in the new card reader is aligned with
the corresponding hole in the chassis.
7. Install the screw to secure the new card reader in place.
8. Connect the new card reader cable to the USB connector on the system board and properly route the
cable of the new card reader. See “Locating parts on the system board” on page 69.
9. Reinstall the front bezel. See “Removing and reinstalling the front bezel” on page 72.
10. To complete the replacement, go to “Completing the parts replacement” on page 94.
Replacing the front audio and USB assembly
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:
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:
90
ThinkCentre Hardware Maintenance Manual