Lenovo C440 Touch All-in-One - Manual (Page 54)

Step 9. Remove the EMI cover. Refer to “Removing the EMI cover”.
Step 10. Remove the two screws that secure camera to the front bezel.
Step 11. Lift up the camera and disconnect the data cable from the camera.
Step 12. Remove the two screws that secure the camera to the bracket, then put aside the bracket.
Step 13. To install the new camera:
a. Line up the new camera with the bracket, then secure the camera to the bracket with the
two screws.
b. Connect the data cable to the new camera.
c. Line up the holes in the new camera with the mounting holes on the front bezel and secure it
with the two screws.
Step 14. Reattach the EMI cover, middle cover, optical drive, stand holder, foot cover and stand base.
Replacing the CPU
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 CPU
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 stand base. Refer to “Removing the stand base”.
Step 5. Remove the foot cover. Refer to “Removing the foot cover”.
48 Lenovo C340/440 SeriesHardware Maintenance Manual