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Precautions: R eadthis before operating thisunit
• To assure the finest performance, please read this manual
carefully. Keep it in a safe place for future reference.
• Install this unit in a cool, dry, clean place - away fi'om
windows, heat sources, sources of excessive vibration,
dust, moisture and cold. Avoid sources of hulnming
(transformers, motors). To pl'event fire or electrical
shock, do not expose this unit to rain or water.
• Never open the cabinet. If any l\_l'eign objects drop into
the set, contact your dealer.
• Tile voltage to be used must be the same as that specified
on the rear panel. Using this unit with a higher voltage
than specified is dangerous and may cause a fire and/or
electric shock.
• To reduce the risk of fire or electric shock, do not expose
this unit to rain or moisture.
• Do not use force on switches, COl]trois,o1" COlmection
wires. When moving the unit, first disconnect the power
plug and the wires connected to other equipments.
Never pull the wires themselves.
• When not planning to use this unit for a long period (i.e.,
vacation, etc.), disconnect the AC power plug from the
wall outlet.
• Since this trait has a built-in power amplifier, heat will
radiate from the rear panel. Place the unit apart from the
walls, allowing at least 20 cm of space above, behind and
on both sides of the unit to prevent fire or damage.
Furthermore, do not position with the rear panel facing
down on the floor or other surfaces.
• Do not cover the rear panel of this unit with a newspaper,
a tablecloth, a curtain, etc. in order not to obstruct heat
radiation. If the temperature inside the unit rises, it may
cause fire, damage to the unit and/or personal injury.
• Do not place the t\_llowing objects on this unit:
Glass, china, small metallic etc.
If glass etc. falls by vibrations and breaks, it may
cause bodily injury.
A burning candle etc.
If the candle falls by vibrations, it may cause fire and
bodily injury.
A vessel with water in it
If the vessel falls by vibrations and water spills, it
may cause damage to the speaker, and/or you may get
an electric shock.
• Do not place this unit where foreign objects such as
water drips might falh It might cause a fire, damage to
this unit, and/or personal injury.
• Never put a hand or a foreign object into the YST 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.
• Never place a fragile object near the YST port of this
unit. lfthe object falls or drops by the air pressure, it may
cause damage to the unit and/or personal injury.
• Never open the cabinet. It might cause an electric shock
since this unit uses a high voltage. It might also cause
personal injury and/or damage to this unit.
• When usiug a hulnidifier, be sure to avoid condensation
inside this unit by allowiug euough spaces arouud this trait
or avoiding excess humidification. Condensation might
cause a fire, damage to this unit, and/or electric shock.
• Snper-bass frequencies reproduced by this unit may
cause a turntable to generate a howling sound. In such a
case, move this unit away from the turntable.
, This unit may be damaged if certain sounds are
continuously outputted at high volume level. For
example, if 20 Hz-50 Hz sine waves from a test disc,
bass sounds from electronic instruments, etc. are
continuously outputted, or when the stylus of a
turntable touches the surface of a disc, reduce the
volume level to prevent this unit from being damaged.
, If you hear distorted noise (i.e., mmamral, intermittent
"rapping" or "hammering" sounds) coming I'rom this
unit, reduce the volume level. Extremely loud playing
of a movie sonndtrack's low frequency, bass-heavy
sounds or similarly loud popular mnsic passages can
damage this snbwoofcr system.
• Vibration generated by super-bass frequencies may
distort images on a TV. In such a case, move this unit
away froln the TV set.
• Do not attempt to clean this unit with chemical solvents
as this might damage the finish. Use a clean, dry cloth.
• Be sure to read the "TROUBLESHOOTING"
section
regarding common operating errors before concluding
that the unit is faulty.
• Install this unit near the wall outlet and where the AC
power plug can be reached easily.
• Secure placement or installation
is the owner's
responsibility.
YAMAHA shall not be liable fnr any
accident caused by improper placement or
installation of the subwoofer.
WARNING
TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS UNIT TO RAIN
OR MOISTURE.
As long as this unit is connected
to the AC wall out-
let, it is not disconnected
fl'om the AC power
source
even if you turn off this unit by POWER.
This unit t'catnres
a magnetically
shielded
design,
but
there is still a chance
that placing
it too close to a TV
set might
impair picture
color. Should this happen,
move
this unit away from the TV set.
iii
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