Roland DS-30A User Manual
Page 5
5
IMPORTANT NOTES
291b
In addition to the items listed under “IMPORTANT SAFETY INSTRUCTIONS” and “USING THE UNIT SAFELY” on page 3
and 4, please read and observe the following:
Power Supply
301
•
Do not use this unit on the same power circuit with any device that
will generate line noise (such as an electric motor or variable lighting
system).
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.
355
•
To avoid possible breakdown, do not use the unit in a wet area, such
as an area exposed to rain or other moisture.
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.
357
•
Do not put anything that contains water (e.g., flower vases) on the
unit. Also, avoid the use of insecticides, perfumes, alcohol, nail
polish, spray cans, etc., near the unit. Swiftly wipe away any liquid
that spills on the unit using a dry, soft cloth.
359
•
Do not paste stickers, decals, or the like to this instrument. Peeling
such matter off the instrument may damage the exterior finish.
add 1
•
During operation, this unit must be placed at a distance of no less
than 20 cm from any walls.
add 2
•
Do not allow objects to remain on top of the unit while it is in
operation.
• If you cover the top of the unit, the function is defeated, and
temperature can rise to overly high level, which could cause burns
if they are accidentally touched.
*
Please also refer to
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. After-
wards, 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.
Additional Precautions
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.
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.
557
•
A small amount of heat will radiate from the unit during normal
operation.
558b
•
To avoid disturbing your neighbors, try to keep the unit’s volume at
reasonable levels (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.
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 impos-
sible to hear. For information on cable specifications, contact the
manufacturer of the cable.
Main Features........................................................................................................................................ 1
USING THE UNIT SAFELY.................................................................................................................... 4
IMPORTANT NOTES ............................................................................................................................. 5
Table of Contents.................................................................................................................................. 5
Panel Descriptions................................................................................................................................ 6
Front ............................................................................................................................................................. 6
Rear............................................................................................................................................................... 6
Connection Examples .......................................................................................................................... 8
Using Two DS-30A Monitors for Stereo Sound ..................................................................................... 8
Important Notes on Placement................................................................................................................. 9
Precautions When Connecting and Turning on the Power ................................................................. 9
Reference............................................................................................................................................. 10
Troubleshooting........................................................................................................................................ 10
Specifications............................................................................................................................................. 10
Dimensions................................................................................................................................................ 11
Frequency Response................................................................................................................................. 11
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