Bedienungsanleitung Roland AC-60 (Seite 5 von 20) (Englisch)

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IMPORTANT NOTES

291b

In addition to the items listed under “IMPORTANT SAFETY INSTRUCTIONS” and “USING THE UNIT SAFELY” on pages

2–4, please read and observe the following:

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.

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.

308

• Although the LEDs are switched off when the POWER switch is

switched off, this does not mean that the unit has been

completely disconnected from the source of power. If you need to

turn off the power completely, first turn off the POWER switch,

then unplug the power cord from the power outlet. For this

reason, the outlet into which you choose to connect the power

cord’s plug should be one that is within easy reach and readily

accessible.

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.

354b

• 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. Also, do not allow lighting

devices that normally are used while their light source is 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.

355b

• When moved from one location to another where the temper-

ature and/or humidity is very different, water droplets (conden-

sation) 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.

356b

• Do not allow rubber, vinyl, or similar materials to remain on the

unit for long periods of time. Such objects can discolor or

otherwise harmfully affect the finish.

359

• Do not paste stickers, decals, or the like to this instrument.

Peeling such matter off the instrument may damage the exterior

finish.

Add

• Do not allow objects to remain on top of the unit while it is in

operation.

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

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.

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.

557

• A small amount of heat will radiate from the unit during normal

operation.

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 impos-

sible to hear. For information on cable specifications, contact the

manufacturer of the cable.

921

• To prevent malfunction and/or damage to speakers or other

devices, always turn down the volume, and turn off the power on

all devices before making any connections.

941

• Once the connections have been completed (p. 11), turn on power

to your various devices in the order specified. By turning on

devices in the wrong order, you risk causing malfunction and/or

damage to speakers and other devices.

When powering up:

Turn on the power to the AC-60

last

When powering down:

Turn off the power to the AC-60

first

942

• This unit is equipped with a protection circuit. A brief interval (a

few seconds) after power up is required before the unit will

operate normally.

Add

• Wrap the AC cord around the cord hook when trans-porting or

storing the unit.

945

• If you need to turn off the power completely, first turn off the

POWER switch, then unplug the power cord from the power

outlet. Refer to

Power Supply

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Roland AC-60 Seite 5

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