Lenovo C20-00, Hardware Maintenance Manual, Page: 43 / 61

Step 5. Remove the screw that secures the power switch board to the rear cover, and then slide out
the power switch board to remove it.
Step 6. Disconnect the power switch board cable from the connector on the motherboard.
Step 7. To install the power switch board:
a. Line up the holes on the new power switch board with the mounting holes on the rear cover
and secure the new power switch board with the two screws.
b. Connect the data cable to the connector on the new motherboard.
Step 8. Reattach the rear cover.
Replacing the I/O Shielding
Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the rear cover.
To replace the I/O shielding:
Step 1. Remove any media (disks, CDs, DVDs or memory cards) 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 “Left and right view”
and “Rear view” for help with locating the various connectors.
Step 4. Remove the rear cover. Refer to "Removing the rear cover".
Chapter 7
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Replacing hardware
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