Lenovo IdeaCentre B520 - Manual (Page 42)

Hardware Maintenance Manual
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4. Remove the 19 screws that secure the EMI cover to the chassis and lift
up the EMI cover.
Replacing the converter board
To replace the converter board:
1. Remove the computer cover. Refer to ”Removing the computer cover”.
2. Remove the back deco. Refer to “Removing the back deco”.
3. Remove the computer stand. Refer to “Removing the computer stand”.
4. Remove the EMI cover. Refer to “Removing the EMI cover”.
5. Remove the 2 screws that secure the converter board to the chassis.