JVC HM-DT100U 사용자 설명서

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Filename [HM-100U_Eng_03Safety.fm]
IMPORTANT PRODUCT SAFETY 
INSTRUCTIONS
Electrical energy can perform many useful functions. But 
improper use can result in potential electrical shock or 
fire hazards. This product has been engineered and 
manufactured to assure your personal safety. In order not 
to defeat the built-in safeguards, observe the following 
basic rules for its installation, use and servicing.
ATTENTION:
Follow and obey all warnings and instructions marked on 
your product and its operating instructions. For your 
safety, please read all the safety and operating 
instructions before you operate this product and keep this 
booklet for future reference.
INSTALLATION
1. Grounding or Polarization
(A) Your product may be equipped with a polarized 
alternating-current line plug (a plug having one 
blade wider than the other). This plug will fit into 
the power outlet only one way. This is a safety 
feature.
If you are unable to insert the plug fully into the 
outlet, try reversing the plug. If the plug should 
still fail to fit, contact your electrician to replace 
your obsolete outlet. Do not defeat the safety 
purpose of the polarized plug.
(B) Your product may be equipped with a 3-wire 
grounding-type plug, a plug having a third 
(grounding) pin. This plug will only fit into a 
grounding-type power outlet. This is a safety 
feature.
If you are unable to insert the plug into the outlet, 
contact your electrician to replace your obsolete 
outlet. Do not defeat the safety purpose of the 
grounding-type plug.
2. Power Sources
Operate your product only from the type of power 
source indicated on the marking label. If you are not 
sure of the type of power supply to your home, 
consult your product dealer or local power company. 
If your product is intended to operate from battery 
power, or other sources, refer to the operating 
instructions.
3. Overloading
Do not overload wall outlets, extension cords, or 
integral convenience receptacles as this can result in 
a risk of fire or electric shock.
4. Power Cord Protection
Power supply cords should be routed so that they are 
not likely to be walked on or pinched by items placed 
upon or against them, paying particular attention to 
cords at plugs, convenience receptacles, and the 
point where they exit from the product.
5. Ventilation
Slots and openings in the cabinet are provided for 
ventilation. To ensure reliable operation of the 
product and to protect it from overheating, these 
openings must not be blocked or covered.
• Do not block the openings by placing the product 
on a bed, sofa, rug or other similar surface.
• Do not place the product in a built-in installation 
such as a bookcase or rack unless proper ventilation 
is provided or the manufacturer’s instructions have 
been adhered to.
6. Wall or Ceiling Mounting
The product should be mounted to a wall or ceiling 
only as recommended by the manufacturer.
ANTENNA INSTALLATION INSTRUCTIONS
1. Outdoor Antenna Grounding
If an outside antenna or cable system is connected to 
the product, be sure the antenna or cable system is 
grounded so as to provide some protection against 
voltage surges and built-up static charges. Article 810 
of the National Electrical Code, ANSI/NFPA 70, 
provides information with regard to proper grounding 
of 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.
2. Lightning
For added protection for this product during a 
lightning storm, or when it is left unattended and 
unused for long periods of time, unplug it from the 
wall outlet and disconnect the antenna or cable 
system. This will prevent damage to the product due 
to lightning and power-line surges.
3. Power Lines
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.
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)
NEC - NATIONAL ELECTRICAL CODE
ELECTRIC SERVICE
EQUIPMENT
EXAMPLE OF ANTENNA GROUNDING AS PER
NATIONAL ELECTRICAL CODE, ANSI/NFPA 70
GROUND CLAMP
HM-DH100U_Eng.book  Page 3  Thursday, August 5, 2004  1:54 PM