Yamaha RP-U100, Руководство пользователя

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12
Cleaning—The unit should be cleaned only as
recommended by the manufacturer.
13
When Not in Use—The power cord of the unit
should be unplugged from the outlet when the
unit is not used for a long period of time.
14
Object and Liquid Entry—Care should be
taken so that no objects fall into, and liquids
are not spilled into the 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 service the
unit beyond those means described in the
operating instructions. All other servicing
should be referred to qualified service
personnel.
17
Overhead Power Lines—An outdoor antenna
should be located away from overhead power
lines.
18
Grounding or Polarization—Precautions
should be taken so that the grounding or
polarization is not defeated.
19
For US customers only:
Outdoor Antenna Grounding – If an outside
antenna is connected to this unit, ensure 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.
We Want You Listening for a Lifetime
YAMAHA and the Electronic Industries Associa-
tion’s Consumer Electronics Group want you to get
the most out of your equipment by playing it at a
safe level. One that lets the sound come through
loud and clear without annoying blaring or distor-
tion – and, most importantly, without affecting your
sensitive hearing. Since hearing damage from loud
sounds is often undetectable until it is
too late, YAMAHA and the Electronic
Industries Association’s Consumer
Electronics Group recommend you to
avoid prolonged exposure to excessive
volume levels.
Note for CATV system installers:
This reminder is provided to call the CATV sys-
tem installer’s attention to Article 820-40 of the
NEC that provides guidelines for proper ground-
ing and, in particular, specifies that the cable
ground shall be connected to the grounding sys-
tem of the building, as close to the point of cable
entry as practical.
EXAMPLE OF ANTENNA GROUNDING
MAST
GROUND
CLAMP
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)
ELECTRIC
SERVICE
EQUIPMENT
NEC
– NATIONAL ELECTRICAL CODE