Unplug your computer and any peripheral devices.
Upgrading and Maintaining Components
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To remove the side panel (PCV-RX series model)
1 Shut down your computer and turn off all peripheral devices, such as your printer.
2
3 Locate the tab on the upper right side of the rear panel, and pull it back until the side panel releases.
4 Lift the side panel away from the unit and set aside.