Lenovo C355 Lenovo C355/C455 All-In-One Computer Hardware Maintenance Manual - Page 54

Replacing the WLAN card

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Step 11. Remove the screw that secures the TV-Tuner card to the motherboard. 1 Step 12. Pull the TV-Tuner card upward to remove it from the card port on the motherboard. 2 Step 13. To install the new TV-Tuner card: a. Insert the notched end of the TV-Tuner card into the card port on the motherboard. b. Secure new the TV-Tuner card to the motherboard with the screw. c. Connect the antenna cable to the new TV-Tuner card. Step 14. Reattach the EMI cover, middle cover, optical drive, stand holder, foot cover and stand base. Replacing the WLAN card 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 WLAN card: 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. 48 Lenovo C355/C455 All-In-One ComputerHardware Maintenance Manual

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Step11. Remove the screw that secures the TV-Tuner card to the motherboard.
1
Step 12. Pull the TV-Tuner card upward to remove it from the card port on the motherboard.
2
Step13. To install the new TV-Tuner card:
a.
Insert the notched end of the TV-Tuner card into the card port on the motherboard.
b.
Secure new the TV-Tuner card to the motherboard with the screw.
c.
Connect the antenna cable to the new TV-Tuner card.
Step 14. Reattach the EMI cover, middle cover, optical drive, stand holder, foot cover and stand base.
Replacing the WLAN card
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 WLAN card:
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.
48
Lenovo C355/C455 All-In-One ComputerHardware Maintenance Manual