Important Notes - Roland VOCAL TRAINER VT-12 Manual Del Usuario

Power Supply
• Do not connect this unit to same electrical outlet
that is being used by an electrical appliance that
is controlled by an inverter or a motor (such as a
refrigerator, washing machine, microwave oven, or
air conditioner). Depending on the way in which
the electrical appliance is used, power supply
noise may cause this unit to malfunction or may
produce audible noise. If it is not practical to use a
separate electrical outlet, connect a power supply
noise filter between this unit and the electrical
outlet.
• The AC adaptor will begin to generate heat after
long hours of consecutive use. This is normal, and
is not a cause for concern.
• To prevent malfunction and equipment failure,
always make sure to turn off the power on all your
equipment before you make any connections.
• Power to this unit will be turned off automatically
after 30 minutes have passed without any of
its buttons being pressed (including time that
metronome is sounding), or 30 minutes have
passed since playback of a track has stopped.
Power Supply: Use of Batteries
• When installing or replacing batteries, always turn
this unit off and disconnect any other devices you
may have connected. This way, you can prevent
malfunction and damage.
• The life of the supplied batteries may be limited,
since its primary purpose was to enable testing.
• If operating this unit on batteries, please use
alkaline batteries or rechargeable Ni-MH batteries.
• If operating this unit on batteries, please
disconnect the AC adaptor from this unit.
• Even if batteries are installed, the unit will turn off
if you connect or disconnect the power cord from
the AC outlet while the unit is turned on, or if you
connect or disconnect the AC adaptor from the
unit.
Maintenance
• For everyday cleaning wipe the unit with a soft,
dry cloth or one that has been slightly dampened
with water. To remove stubborn dirt, use a cloth
impregnated with a mild, non-abrasive detergent.
Afterwards, be sure to wipe the unit thoroughly
with a soft, dry cloth.
22

IMPORTANT NOTES

• Never use benzine, thinners, alcohol or solvents of
Placement
• Using the unit near power amplifiers (or other
• This device may interfere with radio and television
• Noise may be produced if wireless
• Do not expose the unit to direct sunlight, place
• When moved from one location to another where
• Depending on the material and temperature of
• Do not put anything that contains water on this
any kind, to avoid the possibility of discoloration
and/or deformation.
equipment containing large power transformers)
may induce hum. To alleviate the problem, change
the orientation of this unit; or move it farther away
from the source of interference.
reception. Do not use this device in the vicinity of
such receivers.
communications devices, such as cell phones,
are operated in the vicinity of this unit. Such
noise could occur when receiving or initiating a
call, or while conversing. Should you experience
such problems, you should relocate such wireless
devices so they are at a greater distance from this
unit, or switch them off.
it near devices that radiate heat, leave it inside
an enclosed vehicle, or otherwise subject it to
temperature extremes. Excessive heat can deform
or discolor the unit.
the temperature and/or humidity is very different,
water droplets (condensation) may form inside
the unit. Damage or malfunction may result if
you attempt to use the unit in this condition.
Therefore, before using the unit, you must allow it
to stand for several hours, until the condensation
has completely evaporated.
the surface on which you place the unit, its rubber
feet may discolor or mar the surface.
You can place a piece of felt or cloth under the
rubber feet to prevent this from happening. If you
do so, please make sure that the unit will not slip
or move accidentally.
unit. Also, avoid the use of insecticides, perfumes,
alcohol, nail polish, spray cans, etc., near the unit.
Swiftly wipe away any liquid that spills on the unit
using a dry, soft cloth.