Additional Precautions - Roland BA-330 Manual Del Usuario

Important Notes
Power Supply: Use of Batteries
• Do not connect this unit to same electrical outlet that is being used
by an electrical appliance that is controlled by an inverter (such
as a refrigerator, washing machine, microwave oven, or air condi-
tioner), or that contains a motor. 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 con-
secutive use. This is normal, and is not a cause for concern.
• Should you prefer to use batteries, please use the alkaline batteries
or nickel-metal hydride batteries.
• When installing or replacing batteries, always turn off the power on
this unit and disconnect any other devices you may have connected.
This way, you can prevent malfunction and/or damage to speakers or
other devices.
• Before connecting this unit to other devices, turn off the power to all
units. This will help prevent malfunctions and/or damage to speakers
or other devices.
Placement
• Using the unit near power amplifiers (or other 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.
• This device may interfere with radio and television reception. Do not
use this device in the vicinity of such receivers.
• Noise may be produced if wireless 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.
• Do not expose the unit to direct sunlight, place it near devices that
radiate heat, leave it inside an enclosed vehicle, or otherwise subject
it to temperature extremes. Also, do not allow lighting devices that
normally are used while their light source is very close to the unit
(such as a piano light), or powerful spotlights to shine upon the same
area of the unit for extended periods of time. Excessive heat can
deform or discolor the unit.
• When moved from one location to another where 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 condensa-
tion has completely evaporated.
• Do not allow rubber, vinyl, or similar materials to remain on the unit
for long periods of time. Such objects can discolor or otherwise
harmfully affect the finish.
• Do not paste stickers, decals, or the like to this instrument. Peeling
such matter off the instrument may damage the exterior finish.
• Depending on the material and temperature of 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.
Maintenance
• To clean the unit, use a dry, soft cloth; or one that is slightly damp-
ened. Rubbing too hard in the same area can damage the finish.
• Never use benzine, thinners, alcohol or solvents of any kind, to avoid
the possibility of discoloration and/or deformation.

Additional Precautions

• Use a reasonable amount of care when using the unit's buttons,
sliders, or other controls; and when using its jacks and connectors.
Rough handling can lead to malfunctions.
• When connecting / disconnecting all cables, grasp the connector it-
self—never pull on the cable. This way you will avoid causing shorts,
or damage to the cable's internal elements.
• To avoid disturbing your neighbors, try to keep the unit's volume at
reasonable levels (especially when it is late at night).
• When you need to transport the unit, package it in the box (includ-
ing padding) that it came in, if possible. Otherwise, you will need to
use equivalent packaging materials.
• Some connection cables contain resistors. Do not use cables that in-
corporate resistors for connecting to this unit. The use of such cables
can cause the sound level to be extremely low, or impossible to hear.
For information on cable specifications, contact the manufacturer of
the cable.
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