Lenovo IdeaPad Y430 - Manual (Page 132)

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Appendix D. Notices
The following notice applies to all countries and regions:
Danger:
ƒ Outdoor antenna grounding
If an outside antenna or cable system is connected to the equipment,
be sure the antenna or cable system is grounded as to provide some
protection against voltage surges and built-up static charges.
ƒ Lightning
For added protection for this equipment during a lightning storm, or
when it is left unattended and unused for long periods of time,
unplug it from the wall outlet and disconnect the antenna or cable
system. This will prevent damage to the video product due to
lightning and power line surges.
ƒ Power lines
An outside antenna system should not be located in the vicinity of
overhead power lines or where it can fall into such power lines or
circuits. When installing an outside antenna system, extreme care
should be taken to keep from touching such power lines or circuits,
as contact with them may be fatal.