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Important notes
In addition to the items listed under “Using the unit safely” (p. 3), please read and observe the following:
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 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
consecutive use. This is normal, and is not a cause for concern.
• 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.
• 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 the Prelude. 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.
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. 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 conden-
sation has completely evaporated.
• Do not allow objects to remain on top of the keyboard. This can be
the cause of malfunction, such as keys ceasing to produce sound.
• 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
• 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.
Repairs and Data
•Please be aware that all data contained in the unit’s memory may
be lost when the unit is sent for repairs. Important data should
always be backed up a USB memory, or written down on paper
(when possible). During repairs, due care is taken to avoid the loss
of data. However, in certain cases (such as when circuitry related
to memory itself is out of order), we regret that it may not be
possible to restore the data, and Roland assumes no liability
concerning such loss of data.
Memory Backup
Additional Precautions
•Please be aware that the contents of memory can be irretrievably
lost as a result of a malfunction, or the improper operation of the
unit. To protect yourself against the risk of loosing important data,
we recommend that you periodically save a backup copy of
important data you have stored in the unit’s memory to a USB
memory.
• Unfortunately, it may be impossible to restore the contents of data
that was stored in the Prelude’s internal memory or on USB
memory once it has been lost. Roland Europe assumes no liability
concerning such loss of data.
• 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.
•Never strike or apply strong pressure to the display.
•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.
• 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 (especially
when it is late at night).
•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.
• Do not apply undue force to the music stand while it is in use.
• Use only the specified expression pedal (EV-5; sold separately). By
connecting any other expression pedals, you risk causing
malfunction and/or damage to the unit.
• 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 impos-
sible to hear. For information on cable specifications, contact the
manufacturer of the cable.
• The sensitivity of the D Beam controller will change depending on
the amount of light in the vicinity of the unit. If it does not function
as you expect, adjust the sensitivity as appropriate for the
brightness of your location.
Using USB Memory
•When connecting USB memory, firmly insert it all the way in.
• Do not touch the pins of the USB memory connector, or allow them
to become dirty.
• USB memory is made using high-precision electronic components,
so please observe the following points when handling it.
• To prevent damage from static electrical charges, discharge
any static electricity that might be present in your body before
handling USB memory.
• Do not touch the terminals with your fingers or any metal
object.
Prelude_e.book Page 5 Wednesday, January 14, 2009 2:18 PM