Roland AC-2 Owner's Manual download pdf (Page 3)

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Power Supply: Use of Batteries

• 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 malfunc-

tion or may produce audible noise. If it is not practical to use a separate

electrical outlet, connect a power supply noise lter between this unit

and the electrical outlet.

• The AC adaptor will begin to generate heat after long hours of

consecutive use. This is normal, and is not a cause for concern.

• When installing or replacing batteries, always turn o 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.

• Before connecting this unit to other devices, turn o the power to all

units. This will help prevent malfunctions and/or damage to speakers

or other devices.

Placement

• Using the unit near power ampliers (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.

• This device may interfere with radio and television reception. Do not

use this device in the vicinity of such receivers.

• 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

o.

• 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.

• When moved from one location to another where the temperature

and/or humidity is very dierent, 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.

• 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

aect the nish.

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

such matter o the instrument may damage the exterior nish.

• 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

• 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.

• Never use benzine, thinners, alcohol or solvents of any kind, to avoid

the possibility of discoloration and/or deformation.

Additional Precautions

• 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.

• 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.

• 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).

• 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.

• 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 specications, contact the manufacturer of

the cable.

• Recording, duplication, distribution, sale, lease, performance, or broad-

cast of copyrighted material (musical works, visual works, broadcasts,

live performances, etc.) belonging to a third party in part or in whole

without the permission of the copyright owner is forbidden by law.

• Do not use this unit for purposes that could infringe on a copyright

held by a third party. We assume no responsibility whatsoever with

regard to any infringements of third-party copyrights arising through

your use of this unit.

IMPORTANT NOTES

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Roland AC-2 Owner's Manual Page 3

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