Roland FR-2b 用户手册

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页码 32
 
 
 
Power supply
 
V-Accordion 
 
r
 
5
 
• If used improperly, batteries may explode or leak and cause dam-
age or injury. In the interest of safety, please read and observe 
the following precautions.
• Carefully follow the installation instructions for batteries, and make 
sure you observe the correct polarity.
• Avoid using new batteries together with used ones. In addition, avoid 
mixing different types of batteries.
• Remove the batteries whenever the unit is to remain unused for an 
extended period of time.
• Used batteries must be disposed of in compliance with whatever 
regulations for their safe disposal that may be observed in the 
region in which you live.
• Try to prevent cords and cables from becoming entangled. Also, 
all cords and cables should be placed out of the reach of chil-
dren.
• Never climb on top of, nor place heavy objects on the FR-2/
FR-2b.
• Never handle the adaptor or its plugs with wet hands when plug-
ging into or unplugging from, an outlet or this unit.
• If you need to move the FR-2/FR-2b, take note of the precautions 
listed below. Make sure to have a firm grip, to protect yourself 
from injury and the instrument from damage.
• Disconnect the adaptor.
• Disconnect all cords coming from external devices.
• Before cleaning the FR-2/FR-2b, turn off the power and unplug 
the adaptor from the outlet.
• Whenever you suspect the possibility of lightning in your area, 
disconnect the adaptor from the outlet.
• Should you remove screws, make sure to put them in a safe place 
out of children’s reach, so there is no chance of them being swal-
lowed accidentally.
 
2.
Important notes
 
 
Power supply
 
• Do not connect the FR-2/FR-2b 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 elec-
trical outlet, connect a power supply noise filter between this unit and 
the electrical outlet.
• Do not use this instrument on the same power circuit with any device 
that will generate line noise (such as an electric motor or variable lighting 
system).
• Before connecting the FR-2/FR-2b to other devices, turn off the power to 
all units. This will help prevent malfunctions and/or damage to speakers 
or other devices.
• The AC adaptor will begin to generate heat after long hours of consecu-
tive use. This is normal, and is not a cause for concern.
• Although the LEDs are dark when the POWER switch is off, this does not 
mean that the unit has been completely disconnected from the power 
source. To turn off the power completely, first turn off the power switch 
(VOLUME knob), then unplug the power cord from the wall outlet. For this 
reason, the outlet to which you connect the power cord’s plug should be 
one that is within easy reach.
 
Placement
 
• Using the FR-2/FR-2b near power amplifiers (or other equipment con-
taining large power transformers) may induce hum. To alleviate the prob-
lem, 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 
the FR-2/FR-2b in the vicinity of such receivers.
• Do not place the FR-2/FR-2b near devices that produce a strong magnetic 
field (e.g., loudspeakers).
• Install the FR-2/FR-2b on a solid, level surface.
• 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 experi-
ence such problems, 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 radi-
ate heat, leave it inside an enclosed vehicle or otherwise subject it to 
temperature extremes. Also, do not allow lighting devices that are nor-
mally placed 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.
• To avoid possible breakdown, do not use the unit in a wet area, such as an 
area exposed to rain or other moisture.
• Do not allow rubber, vinyl or similar materials to remain on the instru-
ment for long periods of time. Such objects can discolor or otherwise 
harmfully affect the finish.
• Do not put anything that contains water (e.g., flower vases) on the instru-
ment. 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.
• Do not allow objects to remain on top of the keyboard or buttons. This 
can be the cause of malfunction, such as keys or buttons ceasing to pro-
duce sound.
• Do not paste stickers, decals or the like on this instrument. Peeling these 
off, particularly when strong adhesives have been used, can damage the 
instrument’s exterior finish (the stickers provided with this instrument 
feature a weak adhesive).
 
Maintenance
 
• For everyday cleaning wipe the FR-2/FR-2b with a soft, dry cloth or one 
that has been slightly dampened with water. To remove stubborn dirt, use 
a mild, non-abrasive detergent. Afterwards, be sure to wipe the instru-
ment thoroughly with a soft, dry cloth.
• Never use benzene, thinner, 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 instrument’s memory may 
be lost when it is sent for repairs. In certain cases (such as when circuitry 
related to memory itself is out of order), we regret that it may not be pos-
sible to restore the data. Roland assumes no liability concerning such loss 
of data.
 
Additional precautions
 
• When moved from one location to another where the temperature and/
or humidity is very different, water droplets (condensation) may form 
inside the FR-2/FR-2b. Damage or malfunction may result if you attempt 
to use the FR-2/FR-2b in this condition. Therefore, before using the FR-2/
FR-2b, you must allow it to stand for several hours, until the condensa-
tion has completely evaporated.
• Please be aware that the memory contents can be irretrievably lost as a 
result of a malfunction or the improper operation of the instrument.
• Use a reasonable amount of care when using the instrument’s buttons, 
other controls and jacks/connectors. Rough handling can lead to mal-
functions. 
 
FR-2+b GB.book  Page 5  Tuesday, August 7, 2007  11:19 AM