Naxa NPB-273, Instruction Manual

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10. Power Sources: This product should be operated only from the type of 

power source indicated on the rating label. If you are not sure of the type of 
power supply to your home, consult your product dealer or local power 
company. For products intended to operate from battery power or other 
sources, refer to the operating instructions. 

11. Grounding or Polarization: This product may be equipped with a polarized 

alternating-current line plug that has one blade wider than the other. This 
plug will only fit into the power outlet in one direction. This is a safety 
feature. If you are unable to insert the plug fully into the outlet, try reversing 
the direction of the plug. If the plug should still fail to fit, contact an 
electrician to replace the obsolete outlet. Do not defeat the safety purpose 
of the polarized plug. 

12. Power-Cord Protection: Power supply cords should be routed so that they 

are not likely to be walked on or pinched by items placed upon or against 
them, paying particular attention to cords at plugs, convenience 
receptacles, and at the point which they exit from the product. 

13. Protective Attachment Plug: The product may be equipped with an at-

tachment plug with overload protection. This is a safety feature. See the 
operating instructions for replacement or directions to reset the protective 
device. If replacement of the plug is required, be sure the service 
technician has used a replacement plug that has the same overload 
protection as the original plug as specified by the manufacturer. 

14. Outdoor Antenna Grounding: If an outside antenna is connected to the 

product, be sure the antenna system is grounded so as to provide some 
protection against voltage surges and built-up static charges. Article 810 of 
the National Electrical Code, ANS/NFPA70 provides information with 

regard to proper grounding of the mast and supporting structure, grounding 
of the lead-in wire to an antenna-discharge unit, size of grounding 
conductors, location of antenna-discharge unit, connection to grounding 
electrodes, and requirements for the grounding electrode (see figure). 

15. Lightning: For added protection for this product, unplug it from the wall 

outlet and disconnect the antenna or cable system during a lightning storm 
or when it is left unattended and unused for long periods of time. This will 
prevent damage to the product due to lightning or power-line surges. 

16. Power Lines: An outside antenna system should not be located in the 

vicinity of overhead power lines or other electric light or power circuits, or 
where it can fall into such power lines or circuits. When installing an