Roland V-4EX, Owner'S Manual

Page: 5 / 64

5
Power Supply
301 (QA-EMC)
• 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 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
• To prevent malfunction and equipment failure, always make sure
to turn off the power on all your equipment before you make any
connections.
Placement
351 (QA-EMC)
• 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 (QA-EMC)
• This device may interfere with radio and television reception. Do not
use this device in the vicinity of such receivers.
352b (QA-EMC)
• 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.
354a
• 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. 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.
360
• 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.
361
• 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
401a
• 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.
402
• Never use benzine, thinners, alcohol or solvents of any kind, to avoid
the possibility of discoloration and/or deformation.
Repairs and Data
452
• Please be aware that all data contained in the unit’s memory may
be lost when the unit is sent for repairs. Important settings should
be written down on paper (when possible). During repairs, due care
is taken to avoid the loss of data. However, in certain cases (such as
when circuitry related to memory itself is out of order), we regret that
it may not be possible to restore the data, and Roland assumes no
liability concerning such loss of data.
Additional Precautions
551
• Please be aware that the contents of memory can be irretrievably
lost as a result of a malfunction, or the improper operation of the
unit. To protect yourself against the risk of losing important data, we
recommend that you periodically write your setting down on paper.
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.
556
• 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.
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.
562
• 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 specifications, contact the manufacturer of
the cable.
568
• This unit allows you to switch images sat high speed. For some
people, viewing such images can cause headache, nausea, or other
discomfort. Do not use this unit to create video that might cause
these types of health problems. Roland Corporation will accept no
responsibility for any such health problems that may occur in yourself
or in viewers.
About Intellectual Property Rights
Roland
• Roland is an either registered trademark or trademark of Roland
Corporation in the United States and/or other countries.
Others
• Company names and product names appearing in this document are
registered trademarks or trademarks of their respective owners.
C-01-1
• It is forbidden by law to make an audio recording, video recording,
copy or revision of a third party’s copyrighted work (musical work,
video work, broadcast, live performance, or other work), whether in
whole or in part, and distribute, sell, lease, perform, or broadcast it
without the permission of the copyright owner.
C-01-2
• Do not use this product for purposes that could infringe on a
copyright held by a third party. We assume no responsibility
whatsoever with regard to any infringements of third-party copyrights
arising through your use of this product.
C-02
• This product can be used to record or duplicate audio or visual
material without being limited by certain technological copy-
protection measures. This is due to the fact that this product is
intended to be used for the purpose of producing original music or
video material, and is therefore designed so that material that does
not infringe copyrights belonging to others (for example, your own
original works) can be recorded or duplicated freely.
MMP
• 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.
IMPORTANT NOTES