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Roland AC-40 Manual

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USING THE UNIT SAFELY
WARNING
Make sure that the power cord is grounded
Connect mains plug of this model to a
mains socket outlet with a protective
earthing connection.
To completely turn o power to the unit, pull out
the plug from the outlet
Even with the power switch turned o,
this unit is not completely separated
from its main source of power. When
the power needs to be completely
turned o, turn o the power switch
on the unit, then pull out the plug from
the 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.
Do not disassemble or modify by yourself
Do not open (or modify in any way) the
unit or its AC adaptor.
Do not repair or replace parts by yourself
Do not attempt to repair the unit, or
replace parts within it (except when this
manual provides specic instructions
directing you to do so). Refer all servicing
to your retailer, the nearest Roland
Service Center, or an authorized Roland
distributor, as listed on the “Information” page.
Do not use or store in the following types of locations
• Subject to temperature extremes (e.g.,
direct sunlight in an enclosed vehicle,
near a heating duct, on top of heat-
generating equipment); or are
• Damp (e.g., baths, washrooms, on wet
oors); or are
• Exposed to steam or smoke; or are
• Subject to salt exposure; or are
• Humid; or are
• Exposed to rain; or are
• Dusty or sandy; or are
• Subject to high levels of vibration and shakiness.
Do not place in an unstable location
Make sure you always have the unit
placed so it is level and sure to remain
stable. Never place it on stands that
could wobble, or on inclined surfaces.
Use only the supplied AC adaptor and the correct
voltage
Be sure to use only the AC adaptor
supplied with the unit. Also, make
sure the line voltage at the installation
matches the input voltage specied
on the AC adaptor’s body. Other AC
adaptors may use a dierent polarity, or
be designed for a dierent voltage, so their use could
result in damage, malfunction, or electric shock.
WARNING
Use only the supplied power cord
Use only the attached power-supply
cord. Also, the supplied power cord must
not be used with any other device.
Do not bend the power cord or place heavy objects
on it
Do not excessively twist or bend the
power cord, nor place heavy objects
on it. Doing so can damage the cord,
producing severed elements and short
circuits. Damaged cords are re and
shock hazards!
Avoid extended use at high volume
This unit, either alone or in combination
with an amplier and headphones or
speakers, may be capable of producing
sound levels that could cause permanent
hearing loss. Do not operate for a long
period of time at a high volume level,
or at a level that is uncomfortable. If you experience
any hearing loss or ringing in the ears, you should
immediately stop using the unit, and consult an
audiologist.
Don’t allow foreign objects or liquids to enter
unit; never place containers with liquid on unit
Do not place containers containing liquid
(e.g., ower vases) on this product. Never
allow foreign objects (e.g., ammable
objects, coins, wires) or liquids (e.g.,
water or juice) to enter this product.
Doing so may cause short circuits, faulty
operation, or other malfunctions.
Turn o the unit if an abnormality or malfunction
occurs
Immediately turn the unit o, remove
the AC adaptor from the outlet, and
request servicing by your retailer, the
nearest Roland Service Center, or an
authorized Roland distributor, as listed
on the “Information” page when:
• The AC adaptor, the power-supply cord, or the plug
has been damaged; or
• If smoke or unusual odor occurs; or
• Objects have fallen into, or liquid has been spilled
onto the unit; or
• The unit has been exposed to rain (or otherwise has
become wet); or
• The unit does not appear to operate normally or
exhibits a marked change in performance.
Adults must provide supervision in places where
children are present
Always make sure that an adult is
on hand to provide supervision and
guidance when using the unit in places
where children are present.
WARNING
Do not drop or subject to strong impact
Protect the unit from strong impact.
(Do not drop it!)
Do not share an outlet with an unreasonable
number of other devices
Do not force the unit’s power-supply
cord to share an outlet with an
unreasonable number of other devices.
Be especially careful when using
extension cords—the total power used
by all devices you have connected to
the extension cord’s outlet must never exceed the
power rating (watts/amperes) for the extension cord.
Excessive loads can cause the insulation on the cord
to heat up and eventually melt through.
Do not use overseas
Before using the unit in overseas,
consult with your retailer, the nearest
Roland Service Center, or an authorized
Roland distributor, as listed on the
“Information” page.
CAUTION
Place in a well ventilated location
The unit and the AC adaptor should
be located so their location or position
does not interfere with their proper
ventilation.
When disconnecting an AC adaptor, grasp it by the
plug
To prevent conductor damage, always
grasp the AC adaptor by its plug when
disconnecting it from this unit or from a
power outlet.
Periodically clean the AC adaptor’s plug
At regular intervals, you should unplug
the AC adaptor and clean it by using
a dry cloth to wipe all dust and other
accumulations away from its prongs.
Also, disconnect the power plug from
the power outlet whenever the unit is to
remain unused for an extended period of time. Any
accumulation of dust between the power plug and
the power outlet can result in poor insulation and
lead to re.
Manage cables for safety
Try to prevent cords and cables from
becoming entangled. Also, all cords and
cables should be placed so they are out
of the reach of children.
Avoid climbing on top of the unit, or placing heavy
objects on it
Never climb on top of, nor place heavy
objects on the unit.
Do not connect or disconnect the AC adaptor with
wet hands
Never handle the AC adaptor or its plugs
with wet hands when plugging into, or
unplugging from, an outlet or this unit.
Used for instructions intended to alert the
user to the risk of injury or material
damage should the unit be used
improperly.
* Material damage refers to damage or
other adverse effects caused with
respect to the home and all its
furnishings, as well to domestic animals
or pets.
Used for instructions intended to alert the
user to the risk of death or severe injury
should the unit be used improperly.
The symbol alerts the user to things that must be
carried out. The specific thing that must be done is
indicated by the design contained within the circle. In the
case of the symbol at left, it means that the power-cord
plug must be unplugged from the outlet.
The symbol alerts the user to important instructions or
warnings.The specific meaning of the symbol is
determined by the design contained within the triangle. In
the case of the symbol at left, it is used for general
cautions, warnings, or alerts to danger.
The symbol alerts the user to items that must never be
carried out (are forbidden). The specific thing that must
not be done is indicated by the design contained within
the circle. In the case of the symbol at left, it means that
the unit must never be disassembled.
About WARNING and CAUTION Notices
About the Symbols
ALWAYS OBSERVE THE FOLLOWING
… 4 …


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