Roland DR-3 用户手册

 

291a

 

301

 

•

 

Do not use this unit on the same power circuit 

with any device that will generate line noise (such 

as an electric motor or variable lighting system).

 

302

 

• The AC adaptor will begin to generate heat after 

long hours of consecutive use. This is normal, 

and is not a cause for concern.

 

303a

 

• The use of an AC adaptor is recommended as the 

unit’s power consumption is relatively high. 

Should you prefer to use batteries, please use the 

alkaline type.

 

304a

 

• 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.

 

306b

 

• Batteries are supplied with the unit. The life of 

these batteries may be limited, however, since 

their primary purpose was to enable testing.

 

307

 

• 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.

 

351

 

•

 

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.

 

352a

 

• This device may interfere with radio and 

television reception. Do not use this device in the 

vicinity of such receivers.

 

352b

 

• Noise may be produced if wireless communica-

tions 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.

 

354a

 

•

 

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.

 

355b

 

• 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 

condensation has completely evaporated.

 

401a

 

• 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.

 

402

 

• Never use benzine, thinners, alcohol or solvents 

of any kind, to avoid the possibility of discolor-

ation and/or deformation.

 

551

 

• 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 on a paper.

 

552

 

• Unfortunately, it may be impossible to restore 

the contents of data that was stored in another 

MIDI device (e.g., a sequencer) once it has been 

lost. Roland Corporation assumes no liability 

concerning such loss of data.

 

553

 

• 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.

 

554

 

• Never strike or apply strong pressure to the 

display.

 

556

 

• 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.

 

558a

 

• 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).

 

559a

 

• 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 equiv-

alent packaging materials.