Manual Roland BA-55 (page 6 of 176) (English, German, Dutch, French, Italian, Portuguese, Spanish)

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IMPORTANT NOTES

Power Supply

• 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 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.

• 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.

Power Supply: Use of Batteries

• 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.

• Batteries are supplied with the unit. The life of these batteries

may be limited, however, since their primary purpose was to

enable testing.

• If the batteries run extremely low, the sound may distort or

interruptions in the sound may occur at high volume levels,

but this does not indicate a malfunction. If this occurs, please

replace the batteries or use the included AC adaptor.

• If operating this product on batteries, please use alkaline

batteries or rechargeable Ni-MH battery.

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

this 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.

• Do not put anything that contains water (e.g., ower vases) on

this unit. Also, avoid the use of insecticides, perfumes, alcohol,

nail polish, spray cans, etc., near the unit. Swiftly wipe away any

liquid that spills on the unit using a dry, soft cloth.

Maintenance

• To clean the unit, use a dry, soft cloth; or one that is slightly

dampened. Try to wipe the entire surface using an equal

amount of strength. Rubbing too hard in the same area can

damage the nish.

• 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.

• 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.

* MMP (Moore Microprocessor Portfolio) refers to a patent

portfolio concerned with microprocessor architecture, which

was developed by Technology Properties Limited (TPL). Roland

has licensed this technology from the TPL Group.

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Roland BA-55 Manual

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