User manual EPSON C79 START HERE

[. . . ] Use only the type of power source indicated on the product's label. [. . . ] Except as specifically explained in your documentation, do not attempt to service the product yourself. Unplug the product and refer servicing to qualified service personnel under the following conditions: The power cord or plug is damaged; liquid has entered the product; the product has been dropped or the cabinet damaged; the product does not operate normally or exhibits a distinct change in performance. Keep the original box and packing materials, since you will use them when transporting the product. Do not drop or knock it against hard objects because the backing is fragile. If this equipment does cause interference to radio and television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures. Reorient of relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment to an outlet on a circuit different from that to which the receiver is connected Consult your dealer or an experienced radio/TV technician for help The connection of a non-shielded equipment interface cable to this equipment will invalidate the FCC Certification of this device and may cause interference levels which exceed the limits established by the FCC for this equipment. It is the responsibility of the user to obtain and use a shielded equipment interface cable with this device. If this equipment has more than one interface connector, do not leave cables connected to unused interfaces. [. . . ] If this equipment has more than one interface connector, do not leave cables connected to unused interfaces. [. . . ]