Insignia NS-F14TV User Manual page 7

Insignia NS-F14TV 14" Flat Panel TV
Maintenance
Use an isolated power transformer during maintenance because your
TV chassis may be electrified.
Note to cable system TV installer
This reminder is provided to call the cable TV system installer's
attention to Article 820-40 of the NEC that provides guidelines for
correct grounding and, in particular, specifies that the cable ground
shall be connected to the grounding system of the building, as close
to the point of cable entry as practical.
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