NEC E558 55" Class 4K UHD Commercial LED TV User Manual
Page 10
English - 7
CAUTION
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Incorrect usage of batteries can result in leaks or bursting.
• Insert batteries matching the (+) and (–) signs on each battery to the (+) and (–) signs
of the battery compartment.
• Do not mix battery brands.
• Do not combine new and old batteries. This can shorten battery life or cause liquid
leakage of batteries.
• Remove dead batteries immediately to prevent battery acid from leaking into the
battery compartment.
• Do not touch exposed battery acid, it may injure your skin.
• Disposal of a battery into fire or a hot oven, or mechanically crushing or cutting of a
battery, can result in an explosion.
• Leaving a battery in an extremely high temperature surrounding environment, or
a battery subject to extremely low air pressure, can result in an explosion or the
leakage of flammable liquid or gas.
• Contact your dealer or local authorities when disposing of batteries.
9
Suitable for entertainment purposes at controlled luminous environments, to avoid
disturbing reflections from the screen.
10
We recommend wiping clean the ventilation holes a minimum of once a month. Failure
to do so could lead to fire or electric shock or damage to the product.
11
To ensure the product’s reliability, please clean the ventilation holes at the rear side of
the cabinet at least once a year to remove dirt and dust. Failure to do so could lead to
fire or electric shock or damage to the product.
12
If an outside antenna is connected to the receiver, confirm that the antenna system is
grounded to protect against voltage surges and built up static charges. Section 810 of
the National Electric Code, ANSI / NFPA No. 70-1984, provides information with respect
to proper grounding for the mast and supporting structure, grounding of the lead-in
wire to an antenna discharge unit, size of grounding connectors, location of antenna
discharge unit, connection to grounding electrodes and requirements for the grounding
electrode.
The cable distribution system should be grounded (earthed) in accordance with ANSI/
NFPA 70. the National Electrical Code (NEC), in particular Section 820.93, Grounding of
Outer Conductive Shield of a Coaxial Cable.
13
Rest your eyes periodically by focusing on an object at least 5 feet away. Blink often.
14
To the TV system installer: This reminder is provided to call attention to Article 820-
44 of the National Electric Code that provides guidelines for proper grounding and, in
particular, specifies that the cable ground shall be connected to the grounding system of
the facility, as reasonably close to the point of cable entry as possible.
Antenna lead-in wire
Antenna discharge unit
(NEC Section 810-20)
Grounding conductors
(NEC Section 810-21)
Power service grounding
electrode system (NEC Art 250 Part H)
NEC National Electric Code
Ground clamp
Electric service equipment
Ground clamps