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IMPORTANT NOTES

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 (such as a
refrigerator, washing machine, microwave oven, or air conditioner),
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 lter between
this unit and the electrical outlet.
• Before connecting this unit to other devices, turn o the power to all
units. This will help prevent malfunctions and/or damage to speakers
or other devices.
• Although the LEDs are switched o when the POWER switch is
switched o, this does not mean that the unit has been completely
disconnected from the source of power. If you need to turn o the
power completely, rst turn o the POWER switch, then unplug the
power cord from the power outlet. For this reason, the outlet into
which you choose to connect the power cord’s plug should be one
that is within easy reach and readily accessible.

Placement

• Using the unit near power ampliers (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
o.
• 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 dierent, 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.
• Do not allow rubber, vinyl, or similar materials to remain on this
unit for long periods of time. Such objects can discolor or otherwise
harmfully aect the nish.
• Do not paste stickers, decals, or the like to this instrument. Peeling
such matter o the instrument may damage the exterior nish.
• 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.
• Do not put anything that contains water (e.g., ower vases) on this
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.

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.
• 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
itself—never pull on the cable. This way you will avoid causing shorts,
or damage to the cable’s internal elements.
• A small amount of heat will radiate from the unit during normal
operation.
• To avoid disturbing your neighbors, try to keep the unit’s volume at
reasonable levels. You may prefer to use headphones, so you do not
need to be concerned about those around you.
• When you need to transport the unit, package it in the box (including
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
incorporate 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 specications, contact the manufacturer of
the cable.
• Wrap the power cord around the cord hook when transporting or
storing the unit.

Trademarks

• The product names mentioned in this document are trademarks or
registered trademarks of their respective owners, and are not related
to Roland Corporation. In this manual, these names are used because
it is the most practical way of describing the sounds that are simulated
using COSM technology.