Acer Lenovo 3000 J Series User Manual page 46

5. Remove the front bezel by removing the two screws and releasing the six
plastic tabs inside the chassis and then completely remove the bezel. Feed the
power LED cable through the front chassis opening as the bezel is removed.
Note: Be careful so that you do not break the power LED cable, because the
cable is attached to the bezel assembly.
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User Guide