25. If an outside antenna or cable system is connected to the TV, be sure the antenna or cable system is grounded to provide
some protection against voltage surges and built-up static charges. Section 810 of the National Electrical Code,
ANSI/NFPA NO.70, provides information with respect 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 electrodes. (See Diagram Figure A.)
24. To reduce the risk of electric shock, the grounding of center pin of plug must be maintained.
Safety Precautions
iii
ANTENNA
LEAD IN
WIRE
GROUND CLAMP
GROUNDING CONDUCTORS
(NEC SECTION 810-21)
GROUND CLAMPS
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250, PARTH)
ELECTRIC SERVICE
EQUIPMEN T
ANTENNA
DISCHARGE UNIT
(NEC SECTION 810-20)
Diagram Figure A
23. WARNING: To prevent injury, this apparatus must be securely attached to the floor/wall in accordance with the
installation instructions.
26. CAUTION: This device employs a laser system. Use of controls, adjustments or the performance of procedures other than
those specified may result in hazardous exposure to radiation. To prevent exposure to laser beam, do not try to open the
enclosure. Do not stare into beam.
