a.
Align the holes in the EMI cover with the mounting holes in the chassis.
b.
Secure the EMI cover to the chassis with five screws.
Step 9.
Reattach the stand holder, rear cover, and stand base.
Replacing the power switch board
Note:
Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover.
Note:
It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo
recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches
or other damage.
To replace the power switch board
Step 1.
Remove any media from the drives, shut down the operating system, and turn off the computer
and all attached devices.
Step 2.
Unplug all power cords from electrical outlets.
Step 3.
Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)
cables, and any other cables that are connected to the computer. Refer to Locating connectors,
controls and components to locate the various connectors.
Step 4.
Remove the stand base. Refer to Removing the stand base.
Step 5.
Remove the rear cover. Refer to Removing the rear cover.
Step 6.
Remove the stand holder. Refer to Removing the stand holder.
Step 7.
Remove the EMI cover. Refer to Removing the EMI cover.
Step 8.
Disconnect the power switch board cable from the power switch board.
1
Step 9.
Slide the power switch board out in the direction as shown.
2
Step 10. To install the power switch board:
a.
Slide in the power switch board until it locks into position.
.
35
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