Lenovo IdeaCentre B520 - Manual (Page 36)

Hardware Maintenance Manual
34
Replacing the optical drive
Attention
Turn off the computer and wait 3 to 5 minutes to let the computer
cool down before removing the computer cover.
To remove the optical drive:
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 screen from scratches
or other damage.
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.
2. Unplug all power cords from electrical outlets.
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.
4. Remove the computer cover. Refer to “Removing the computer cover”.
5. Loosen the screw that secures the optical drive to the chassis.