Manual Roland A-300PRO (page 5 of 96) (English)

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IMPORTANT NOTES

Power Supply

301

• 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 filter between

this unit and the electrical outlet.

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.

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.

Placement

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 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.

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.

358

• 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.

360

• 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

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 discoloration and/or deformation.

Repairs and Data

452

• 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 in your computer, 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.

Additional Precautions

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

losing important data, we recommend that you periodically

save a backup copy of important data you have stored in the

unit’s memory in your computer.

552

• Unfortunately, it may be impossible to restore the contents of

data that was stored in your computer 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.

558b

• To avoid disturbing your neighbors, try to keep the unit’s

volume at reasonable levels (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 equivalent packaging materials.

561

• Use only the specified expression pedal (EV-5 or EV-7; sold

separately). By connecting any other expression pedals, you

risk causing malfunction and/or damage to the unit.

CD-ROM and DVD-ROM handling

801

• Do not touch the data surface (the unprinted surface) of the

disc, or allow it to be scratched. Doing so may make the data

unreadable. If the disc gets dirty, clean it using a commercially

available disc cleaner.

A-300_500_800C_e.book 5 ページ２０１４年８月１９日　火曜日　午後３時２７分

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Roland A-300PRO Manual

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