Lenovo IdeaPad S10-3 FR - Manual (Page 110)

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Appendix E. Notices
TV tuner information - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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Products with television tuner options installed
The notice below applies to products containing television (TV) tuner
devices that connect to external antennas or to cable/CATV systems, or
both, and that are intended to be installed in North America. Users and
installers in other countries should follow local codes and ordinances
when installing appliances that connect to external antennas and cable/
CATV systems. If local codes are not applicable, it is recommended that
users/installers follow guidelines similar to those that follow.
The TV tuner should connect to TNV-1 circuit only.
When install the coaxial cable to the TV tuner should make sure its metal
shield is reliable connected to protective earthing system of the building.
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Note to CATV system installer
This reminder is provided to call the CATV system installer’s attention to
Article 820-40 of the National Electrical Code (NEC) that provides
guidelines for proper grounding and, in particular, specifies that the cable
ground shall be connected to the grounding system of the building, as
close as possible to the point of cable entry as practical.