Lenovo a70 7099 Guia Do Utilizador
9.
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.
card reader is aligned with the corresponding hole in the chassis.
10.
Install the screw to secure the new card reader in place.
11.
Pivot the drive bay assembly upward. Then, connect the new card reader
cable to the USB connector on the system board. See “Locating parts on the
system board” on page 86.
cable to the USB connector on the system board. See “Locating parts on the
system board” on page 86.
12.
Properly route the cable of the new card reader, and then secure the cable
with the cable clip on the chassis.
with the cable clip on the chassis.
13.
To complete the replacement, go to “Completing the parts replacement” on
page 114.
page 114.
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
“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.
assembly.
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.
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
122.
122.
3.
Remove the front bezel. See “Removing and reinstalling the front bezel” on
page 123.
page 123.
4.
Disconnect the front audio and USB assembly cables from the front USB
connector and the front audio connector on the system board. See “Locating
parts on the system board” on page 120.
connector and the front audio connector on the system board. See “Locating
parts on the system board” on page 120.
5.
Pivot the drive bay assembly upward to gain access to all the internal cables.
See “Accessing the system board components and drives” on page 125.
See “Accessing the system board components and drives” on page 125.
6.
Release the front audio and USB assembly cables from the cable clip that
secures the cables to the chassis.
secures the cables to the chassis.
7.
Lower the drive bay assembly. See “Accessing the system board components
and drives” on page 125.
and drives” on page 125.
8.
Remove the screw that secures the front audio and USB assembly. Then,
remove the front audio and USB assembly from the chassis.
remove the front audio and USB assembly from the chassis.
Chapter 9. Replacing FRUs - Desktop computers
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