Roland DS-50A Speaker User Manual


 
5
IMPORTANT NOTES
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
352
This device may interfere with radio and television
reception. Do not use this device in the vicinity of such
receivers.
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 piano 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 piano. 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.
During Operation, this device must be placed at a distance
of no less than 50 cm from any walls.
Do not allow objects to remain on top of the unit while it is
in operation.
If you cover the heat sink, their function is defeated,
and their temperature can rise to overly high levels,
which could cause burns if they are accidentally
touched.
Placing heavy objects on this unit may result in injury if
it overturns or falls.
Please also refer to “Important Notes on Placement”
(p. 8).
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. 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
553
Use a reasonable amount of care when using the units
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 itselfnever pull on the cable. This way you
will avoid causing shorts, or damage to the cables
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 units
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 impossible to hear. For infor-
mation on cable specifications, contact the manufac-
turer of the cable.
In addition to the items listed under “IMPORTANT SAFETY INSTRUCTIONS” and “USING THE UNIT SAFELY” on pages 2
and 3, please read and observe the following: