Roland MT-90U Manuel D’Utilisation
2
USING THE UNIT SAFELY
002c
• Do not open (or modify in any
way) the unit or its AC
adaptor.
adaptor.
......................................................................
003
• Do not attempt to repair the
unit, or replace parts within it
(except when this manual
provides specific 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.
(except when this manual
provides specific 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.
......................................................................
004
• Never use or store the unit in
places that are:
• Subject to temperature
• Subject to temperature
extremes (e.g., direct
sunlight in an enclosed
vehicle, near a heating
duct, on top of heat-gener-
ating equipment); or are
sunlight in an enclosed
vehicle, near a heating
duct, on top of heat-gener-
ating equipment); or are
• Damp (e.g., baths,
washrooms, on wet floors);
or are
or are
• Humid; or are
• Exposed to rain; or are
• Dusty; or are
• Subject to high levels of
• Exposed to rain; or are
• Dusty; or are
• Subject to high levels of
vibration.
......................................................................
007
• 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.
and sure to remain stable.
Never place it on stands that
could wobble, or on inclined
surfaces.
008c
• 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
specified on the AC adaptor’s
body. Other AC adaptors
may use a different polarity,
or be designed for a different
voltage, so their use could
result in damage, malfunction,
or electric shock.
unit. Also, make sure the line
voltage at the installation
matches the input voltage
specified on the AC adaptor’s
body. Other AC adaptors
may use a different polarity,
or be designed for a different
voltage, so their use could
result in damage, malfunction,
or electric shock.
.....................................................................
008e
• Use only the attached power-
supply cord. Also, the
supplied power cord must not
be used with any other
device.
supplied power cord must not
be used with any other
device.
.....................................................................
009
• 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 fire and
shock hazards!
place heavy objects on it.
Doing so can damage the
cord, producing severed
elements and short circuits.
Damaged cords are fire and
shock hazards!
.....................................................................
010
• This unit, either alone or in
combination with an amplifier
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 uncom-
fortable. If you experience
any hearing loss or ringing in
the ears, you should immedi-
ately stop using the unit, and
consult an audiologist.
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 uncom-
fortable. If you experience
any hearing loss or ringing in
the ears, you should immedi-
ately stop using the unit, and
consult an audiologist.
011
• Do not allow any objects
(e.g., flammable material,
coins, pins); or liquids of any
kind (water, soft drinks, etc.)
to penetrate the unit.
coins, pins); or liquids of any
kind (water, soft drinks, etc.)
to penetrate the unit.
.....................................................................
012b
• Immediately turn the power
off, 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
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
plug has been damaged;
or
• If smoke or unusual odor
occurs
• Objects have fallen into, or
liquid has been spilled onto
the unit; or
the unit; or
• The unit has been exposed
to rain (or otherwise has
become wet); or
become wet); or
• The unit does not appear to
operate normally or
exhibits a marked change
in performance.
exhibits a marked change
in performance.
.....................................................................
013
• In households with small
children, an adult should
provide supervision until the
child is capable of following
all the rules essential for the
safe operation of the unit.
provide supervision until the
child is capable of following
all the rules essential for the
safe operation of the unit.
Used for instructions intended to alert the
user to the risk of injury or material
damage should the unit be used
improperly.
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.
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.
user to the risk of death or severe injury
should the unit be used improperly.
The symbol alerts the user to actions that must be
carried out. The specific action 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 actions that must
never be carried out. 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.
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