Lenovo C240 All-in-One - Manual (Page 36)

a. Align the new optical drive with the cover, and then push the cover back into position.
b. Slide the new optical drive into the drive bay, then push it into position.
c. Secure the optical drive to the chassis using the screw.
Replacing the power adapter
To replace the power adapter:
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. Locate the connector for the power cord. Refer to “Rear view”.
Step 3. Disconnect the failing power adapter from the computer.
Step 4. To install the new power adapter:
a. Connect the new power adapter to the same connector.
30 Lenovo C240/245/255 All-In-One PC Hardware Maintenance Manual