Roland DP-900 Electronic Keyboard User Manual


 
4
IMPORTANT NOTES
291a
In addition to the items listed under “USING THE UNIT SAFELY” on page 2, please read and observe the following:
Power Supply
301
Do not connect this unit to same electrical outlet that is
being used by an electrical appliance that is controlled by an
inverter (such as a refrigerator, washing machine,
microwave oven, or air conditioner), or that contains a
motor. 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.
302
The AC adaptor will begin to generate heat after long hours of
consecutive use. This is normal, and is not a cause for concern.
307
Before connecting this unit to other devices, turn off the
power to all units. This will help prevent malfunctions
and/or damage to speakers or other devices.
Placement
351
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.
352a
This device may interfere with radio and television reception.
Do not use this device in the vicinity of such receivers.
352b
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.
354b
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.
355b
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.
356
Do not allow rubber, vinyl, or similar materials to remain
on the unit for long periods of time. Such objects can
discolor or otherwise harmfully affect the finish.
358
Do not allow objects to remain on top of the keyboard or
pedal board. This can be the cause of malfunction, such as
keys ceasing to produce sound.
359
Do not paste stickers, decals, or the like to this instrument.
Peeling such matter off the instrument may damage the
exterior finish.
Maintenance
401b
To clean the unit, use a dry, soft cloth; or one that is slightly
dampened. Try to wipe the entire surface using an equal
amount of strength, moving the cloth along with the grain of the
wood. Rubbing too hard in the same area can damage the finish.
402
Never use benzine, thinners, alcohol or solvents of any kind,
to avoid the possibility of discoloration and/or deformation.
Additional Precautions
552
Unfortunately, it may be impossible to restore the contents
of data that was stored in the unit’s memory once it has
been lost. Roland Corporation assumes no liability
concerning such loss of data.
553
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.
554
Never strike or apply strong pressure to the display.
555
•A small amount of noise may be heard from the display
during normal operation.
556
When connecting / 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.
558a
To avoid disturbing your neighbors, try to keep the unit’s
volume at reasonable levels. You may prefer to use
headphones, so you do not need to be concerned about
those around you (especially when it is late at night).
559a
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.
560
Do not apply undue force to the music rest while it is in use.
562
Use a cable from Roland to make the connection. If using
some other make of connection cable, please note the
following precautions.
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 infor-
mation on cable specifications, contact the manufac-
turer of the cable.
565
Before opening or closing the keyboard lid, always make
sure that no pets or other small animals are located on top of
the instrument (in particular, they should be kept away from
the keyboard and its lid). Otherwise, due to the structural
design of this instrument, small pets or other animals could
end up getting trapped inside it. If such a situation is encoun-
tered, you must immediately switch off the power and
disconnect the power cord from the outlet. You should then
consult with the retailer from whom the instrument was
purchased, or contact the nearest Roland Service Center.
DP-900_e.book 4 ページ 2004年11月29日 月曜日 午後12時58分