Lenovo IdeaCentre A520 All-in-One - Manual (Page 64)

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 LED panel:
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 base cover. Refer to “Removing the base cover”.
Step 5. Remove the hinge from the chassis. Refer to “Removing the hinge from the chassis”.
Step 6. Remove the rear cover. Refer to “Removing the rear cover”.
Step 7. Remove the scalar board. Refer to “Replacing the scalar board”.
Step 8. Remove the touch control board. Refer to “Replacing the touch control board”.
Step 9. Remove the converter board. Refer to “Replacing the converter board ”.
Step 10. Remove the power switch board. Refer to “Replacing the power switch board”.
Step 11. Remove the Bluetooth module. Refer to “Replacing the Bluetooth module”.
Step 12. Remove the Wi-Fi card. Refer to “Replacing the Wi-Fi card”.
Step 13. Remove the Wi-Fi antenna cable from the front bezel.
Step 14. Remove the camera. Refer to “Replacing the camera”.
Step 15. Remove the front function board. Refer to “Replacing the front function board”.
58 IdeaCentre A520 All-In-One PCHardware Maintenance Manual