Roland MOBILE AC: Acoustic Chorus Battery-Powered Amplifier - Manual (Page 16)

14
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 or a motor (such as a refrigerator,
washing machine, microwave oven, or air conditioner).
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.
• The AC adaptor will begin to generate heat after long
hours of consecutive use. This is normal, and is not a
cause for concern.
• The use of an AC adaptor is recommended as the unit’s
power consumption is relatively high. Should you prefer
to use batteries, please use the alkaline type.
• To prevent malfunction and equipment failure, always
make sure to turn off the power on all your equipment
before you make any connections.
Power Supply: Use of Batteries
• When installing or replacing batteries, always turn this
unit off and disconnect any other devices you may have
connected. This way, you can prevent malfunction and
damage.
• The life of the supplied batteries may be limited, since
its primary purpose was to enable testing.
• If the batteries run extremely low, the sound may
distort / interruptions in the sound may occur at high
volume levels, but this does not indicate a malfunction.
If this occurs, please replace the batteries / use the AC
adaptor (sold separately).
• If operating this unit on batteries, please use alkaline
batteries.
• If operating this unit on batteries, please disconnect the
AC adaptor from this unit.
Placement
• 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.
• 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 off.
• 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.
• 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.
• 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 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
• 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.