Yamaha RP-U100 Manual Do Utilizador

 

iii

 

Cleaning—The unit should be cleaned only as 
recommended by the manufacturer.

 

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.

 

Object and Liquid Entry—Care should be 
taken so that no objects fall into, and liquids 
are not spilled into the unit.

 

Damage Requiring Service—The unit should 
be serviced by qualified service personnel 
when:

 

The power-supply cord or the plug has 
been damaged; or

 

Objects have fallen, or liquid has been 
spilled into the unit; or

 

The unit has been exposed to rain; or

 

The unit does not appear to operate 
normally or exhibits a marked change in 
performance; or

 

The unit has been dropped, or the 
enclosure damaged.

 

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.

 

Overhead Power Lines—An outdoor antenna 
should be located away from overhead power 
lines.

 

Grounding or Polarization—Precautions 
should be taken so that the grounding or 
polarization is not defeated.

 

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.

 

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.

 

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