Yamaha YHT-494 Mode D'emploi page 3

Please read the following operating precautions before use. Yamaha will not be held responsible for any damage and/or injury caused by
not following the cautions below.
1. To assure the finest performance, please read this manual
carefully. Keep it in a safe place for future reference.
2. Install the speakers in a cool, dry, clean place – away from
windows, sources of heat, sources of excessive vibration,
dust, moisture or cold. Avoid sources of electrical humming
(e.g., transformers and motors). To prevent fire or electric
shock, do not expose the speakers to rain or water.
3. To prevent the enclosure from warping or discoloring, do not
expose the speakers to direct sunlight or excessive humidity.
4. Avoid installing the speakers where foreign objects may fall
onto them and/or where they may be exposed to liquid
dripping or splashing.
5. Do not place the following objects on top of the speakers:
– Other components, as they might damage or discolor the
surface of the speakers.
– Burning objects (e.g., candles), as they might cause fire,
damage to the speakers or personal injury.
– Containers of liquid, as they might spill and cause electric
shock to the user or damage to the speakers.
6. Do not place the speakers where they are liable to be knocked
over or struck by falling objects. Stable placement will also
ensure better sound performance.
7. Placing the speakers on the same shelf or rack as the
turntable can result in feedback.
8. Any time you note distortion, reduce the volume control on
your amplifier to lower setting. Never allow your amplifier to
be driven into "clipping". Otherwise, the speakers may be
damaged.
9. When using an amplifier with a rated output power higher
than the nominal input power of the speakers, care should be
taken not to exceed the maximum input of the speakers.
10. Do not attempt to clean the speakers with chemical solvents
as this might damage the finish. Use a clean, dry cloth.
11. Do not attempt to modify or fix the speakers. Contact
qualified Yamaha service personnel when service is needed.
The cabinet should never be opened for any reason.
12. Be sure to read the "Troubleshooting" section regarding
common operating errors before concluding that the speakers
are faulty.
13. Secure placement or installation is the owner's
responsibility. Yamaha is not liable for accidents caused
by improper placement or installation of speakers.
Precautions
For NS-SW280
WARNING
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR
MOISTURE.
1. Do not operate this unit upside down. It may overheat,
possibly causing damage.
2. Do not use excessive force on switches, controls or
connection wires. When moving this unit, first disconnect the
power plug and the wires connected to other equipment.
Never pull the wires themselves.
3. Never put a hand or a foreign object into the port located on
the right side of this unit. When moving this unit, do not hold
the port, as it might cause personal injury and/or damage to
this unit.
4. Since this unit has a built-in power amplifier, heat radiates
from the rear panel. Place the unit away from walls, allowing
at least 20 cm (8") of space above, behind and on both sides
of the unit to prevent fire or damage. Furthermore, do not
position the unit with the rear panel facing down on the floor
or other surfaces.
5. When using a humidifier, be sure to avoid condensation
inside this unit by allowing enough space around the unit and
avoiding excess humidification. Condensation might cause
fire, damage to the unit, and/or electric shock.
6. Do not cover the rear panel of this unit with a newspaper,
tablecloth, curtain, etc. to avoid obstructing heat radiation. If
the temperature inside the unit rises, it may cause fire,
damage to the unit, or personal injury.
7. Do not plug this unit into a wall outlet until all connections
are complete.
8. The voltage to be used must match that specified on the rear
panel. Using this unit with a voltage higher than specified is
dangerous and may cause fire, damage to the unit, and/or
personal injury. Yamaha is not responsible for damage result-
ing from use of this unit with a voltage other than specified.
9. Super-bass sound reproduced by this unit may cause a
turntable to generate audio feedback. In this case, move the
unit away from the turntable.
10. This unit may be damaged if certain sounds are continuously
output at high volume level. For example, if 20 Hz–50 Hz
sine waves from a test disc or bass sounds from an electronic
instrument, etc. are continuously output, or if a turntable
stylus touches the surface of a disc, reduce the volume level
to prevent the unit from being damaged.
11. If you hear distorted noise (i.e., unnatural, intermittent
"rapping" or "hammering" sounds) from this unit, reduce the
volume level. Extremely loud movie soundtrack low
frequency, bass-heavy sounds, or similarly loud popular
music passages can damage this unit.
12. Vibration generated by super-bass sound may distort images
on a TV. In this case, move the unit away from the TV set.
13. When disconnecting the power cord from the wall outlet,
grasp the plug; do not pull the cord.
14. When you plan not to use this unit for a long period of time
(i.e. vacation, etc.), disconnect the AC power plug from the
wall outlet.
15. Install this unit near the wall outlet and where the AC power
plug can be reached easily.
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