Roland SYS-553 Owner's Manual download pdf (Page 6)

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

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 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.

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.

Additional Precautions

552

• Unfortunately, it may be impossible to restore the contents

of data that was stored on a SD card or internal memory

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.

555

• A small amount of noise may be heard from the display

during normal operation.

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 equivalent packaging materials.

562

• 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 specifications, contact the manufacturer of the cable.

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Roland SYS-553 Owner's Manual Page 6

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