Yamaha RX-V2090 - Manual (Page 2)

SAFETY INSTRUCTIONS
1 Read Instructions — All the safety and operating
instructions should be read before the unit is operated.
2 Retain Instructions — The safety and operating
instructions should be retained for future reference.
3 Heed Warnings — All warnings on the unit and in the
operating instructions should be adhered to.
4 Follow Instructions — All operating and other
instructions should be followed.
5 Water and Moisture — The unit should not be used near
water – for example, near a bathtub, washbowl, kitchen
sink, laundry tub, in a wet basement, or near a
swimming pool, etc.
6 Carts and Stands — The unit should be used only with a
cart or stand that is recommended by the manufacturer.
6A An unit and cart combination should be
moved with care. Quick stops,
excessive force, and uneven surfaces
may cause the unit and cart
combination to overturn.
7 Wall or Ceiling Mounting — The unit should be mounted
to a wall or ceiling only as recommended by the
manufacturer.
8 Ventilation — The unit should be situated so that its
location or position does not interfere with its proper
ventilation. For example, the unit should not be situated
on a bed, sofa, rug, or similar surface, that may block
the ventilation openings; or placed in a built-in
installation, such as a bookcase or cabinet that may
impede the flow of air through the ventilation openings.
9 Heat — The unit should be situated away from heat
sources such as radiators, stoves, or other appliances
that produce heat.
10 Power Sources — The unit should be connected to a
power supply only of the type described in the operating
instructions or as marked on the unit.
11 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 unit.
12 Cleaning — The unit should be cleaned only as
recommended by the manufacturer.
13 Nonuse Periods — The power cord of the unit should be
unplugged from the outlet when left unused for a long
period of time.
14 Object and Liquid Entry — Care should be taken so that
objects do not fall into and liquids are not spilled into the
inside of unit.
15 Damage Requiring Service — The unit should be
serviced by qualified service personnel when:
A. The power-supply cord or the plug has been damaged; or
B. Objects have fallen, or liquid has been spilled into the
unit; or
C. The unit has been exposed to rain; or
D. The unit does not appear to operate normally or exhibits
a marked change in performance; or
E. The unit has been dropped, or the enclosure damaged.
16 Servicing — The user should not attempt service the
unit beyond those means described in the operating
instructions. All other servicing should be referred to
qualified service personnel.
17 Power Lines — An outdoor antenna should be located
away from power lines.
18 Grounding or Polarization — Precautions should be taken
so that the grounding or polarization is not defeated.
19 Outdoor Antenna Grounding — If an outside antenna is
connected to this unit, be sure the antenna 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
conductors, location of antenna discharge unit,
connection to grounding electrodes, and requirements
for the grounding electrode.
ANTENNA
DISCHARGE UNIT
(NEC SECTION 810-20)
GROUNDING CONDUCTORS
(NEC SECTION 810-21)
GROUND CLAMPS
POWER SERIVCE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250, PART H)
NEC – NATIONAL ELECTRICAL CODE
ELECTRIC
SERVICE
EQUIPMENT
GROUND
CLAMP
MAST ANTENNA
LEAD IN
WIRE
EXAMPLE OF ANTENNA GROUNDING
Note to CATV system installer:
This reminder is provided to call the CATV 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.