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4
USING THE UNIT SAFELY
002c
● Do not open (or modify in any way) the unit or
its AC 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 separate
sheet titled “Information.”
......................................................................................................................
004
● Never install the unit in any of the following
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 floors);
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.
......................................................................................................................
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.
......................................................................................................................
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.
......................................................................................................................
008e
● Use only the attached power-supply cord. Also,
the 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!
......................................................................................................................
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 eects 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 specic 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 specic 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 specic 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
SD-50_e.book 4 ページ ２０１０年１月２５日 月曜日 午前１０時５２分