Lenovo C225 All-In-One - Manual (Page 44)

For model C320 refer to the below illustration.
Step 11. Line up the new system fan then secure it to the chassis and connect the new power cable
to the motherboard.
Step 12. Reattach the EMI cover, the computer cover, the speaker cover, the hard disk drive cover and
the optical disk drive.
Replacing the TV tuner card
Note: Turn off the computer and wait 3 to 5 minutes to let the computer cool down before removing the
computer 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 TV tuner card
Step 1. Remove any media (disks, CDs, 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 optical drive. Refer to “Replacing the optical drive”.
Step 5. Remove the hard disk drive cover. Refer to “Replacing the hard disk drive”.
Step 6. Remove the speaker cover. Refer to “Removing the speaker cover”.
Step 7. Remove the computer cover. Refer to “Removing the computer cover”.
Step 8. Remove the EMI cover. Refer to “ Removing the EMI Cover”.
Step 9. Disconnect the antenna cable from the TV tuner card.
Step 10. Remove the screw that secures the TV tuner card to the motherboard.
Step 11. Pull the TV tuner card upward to remove it from the card port.
40 Lenovo C2/C3 Hardware Maintenance Manual