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 Important Notes on Placement (p. 9).

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.

Table of Contents

 

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

5

Page 5
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Roland DS-30A owner manual Important Notes, Table of Contents