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Roland AC-40 Manual

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IMPORTANT NOTES
3
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IMPORTANT NOTES
CAUTION
Disconnect everything before moving the unit
Before moving the unit, disconnect the
AC adaptor and all cords coming from
external devices.
Unplug the AC adaptor from the outlet before
cleaning
Before cleaning the unit, turn it o and
unplug the AC adaptor from the outlet
(p. 5).
CAUTION
If there is a possibility of lightning strike,
disconnect the AC adaptor from the outlet
Whenever you suspect the possibility of
lightning in your area, disconnect the AC
adaptor from the outlet.
CAUTION
Take care so as not to get ngers pinched
When handling the following moving
parts, take care so as not to get ngers,
toes, etc., pinched. Whenever a child uses
the unit, an adult should be on hand to
provide supervision and guidance.
• Arm stand (p. 7)
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 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.
• To prevent malfunction and equipment failure,
always make sure to turn o the power on all your
equipment before you make any connections.
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 place containers or anything else containing
liquid on top of this unit. Also, whenever any liquid
has been spilled on the surface of this unit, be sure to
promptly wipe it away using a soft, dry 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.
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 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 others nearby, 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.
• When deploying or retracting the arm stand, be
careful so as not to get your ngers pinched between
the movable part and the unit itself. In places where
small children are present, make sure that an adult
provides supervision and guidance.
Licence/Trademarks
• 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.
• Roland and BOSS are either registered trademarks
or trademarks of Roland Corporation in the United
States and/or other countries.
• Company names and product names appearing
in this document are registered trademarks or
trademarks of their respective owners.
… 5 …


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