Hitachi ULTRAVISION C50M6 Guide Du Propriétaire page 4

IMPORTANT SAFETY INSTRUCTIONS
16) An outside antenna system should not be located in the vicinity of overhead power
lines or other electric light or power circuits, 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 might be fatal.
17) Do not overload wall outlets and extension cords, as this can result in a risk of fire or
electric shock.
18) Do not push objects through any openings in this unit, as they may touch dangerous
voltage points or short out parts that could result in fire or electric shock. Never spill or
spray any type of liquid into the unit.
19) If an outside antenna or cable system is connected to the unit, 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 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 electrode.
20) When replacement parts are required, be
sure the service technician uses replacement parts specified by the manufacturer or
those that have the same characteristics as the original part.
Unauthorized substitutions may result in fire, electric shock or other hazards.
21) Upon completion of any service or repairs to this unit, ask the service technician to
perform safety checks to determine that the unit is in proper operating condition.
22) When you connect the product to other equipment, turn off the power and unplug all of
the equipment from the wall outlet. Failure to do so may cause an electric shock and
serious personal injury. Read the owner's manual of the other equipment carefully and
follow the instructions when making any connections.
23) Do not allow the product to output distorted sound for an extended period of time. It may
cause speaker overheating and fire.
24) This reminder is provided to call the cable TV system installer's attention to Article 820-
40 of the 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 to the point of cable entry as practical.
25) Sudden high volume sound may cause hearing or speaker damage. When you use
headphones, (if the unit is equipped with a headphone jack) keep the volume at a
moderate level. If you use headphones continuously with high volume sound, it may
cause hearing damage.
26) The mains plug is used as the disconnect and shall remain readily operable.
CONDENSATION
Moisture will form in the operating section of the unit if the unit is brought from cool
surroundings into a warm room or if the temperature of the room rises suddenly. When
this happens, unit's performance will be impaired. To prevent this, let the unit stand in its
new surroundings for about an hour before switching it on, or make sure that the room
temperature rises gradually.
Condensation may also form during the summer if the unit is exposed to the breeze from an
air conditioner. In such cases, change the location of the unit.
EN4
EXAMPLE OF ANTENNA GROUNDING AS PER THE
NATIONAL ELECTRICAL CODE
GROUND
CLAMP
ELECTRIC SERVICE
EQUIPMENT
NEC-NATIONAL
ELECTRICAL CODE
S2898A
(continued)
ANTENNA
LEAD IN WIRE
ANTENNA
DISCHARGE UNIT
(NEC SECTION 810-20)
GROUNDING CONDUCTORS
(NEC SECTION 810-21)
GROUND CLAMPS
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250, PART H)