Roland MA 10A Service Manual
Owner’s Manual
Bedienungsanleitung
Mode d’emploi
Manuale d’uso
Manual del usuario
201b
Before using this unit, carefully read the sections entitled: “IMPORTANT
SAFETY INSTRUCTIONS” (p. 2), “USING THE UNIT SAFELY” (pp. 3–4), and
“IMPORTANT NOTES” (p. 5). These sections provide important information
concerning the proper operation of the unit. Additionally, in order to feel
assured that you have gained a good grasp of every feature provided by your
new unit, Owner’s manual should be read in its entirety. The manual should be
saved and kept on hand as a convenient reference.
202
Copyright © 2001 ROLAND CORPORATION
All rights reserved. No part of this publication may be reproduced in any form without
the written permission of ROLAND CORPORATION.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
ATTENTION: RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
The lightning flash with arrowhead symbol, within an
equilateral triangle, is intended to alert the user to the
presence of uninsulated “dangerous voltage” within the
product’s enclosure that may be of sufficient magnitude to
constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in the
literature accompanying the product.
INSTRUCTIONS PERTAINING TO A RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS.
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
WARNING - When using electric products, basic precautions should always be followed, including the following:
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a damp cloth.
7. Do not block any of the ventilation openings. Install in
accordance with the manufacturers instructions.
8. Do not install near any heat sources such as radiators,
heat registers, stoves, or other apparatus (including
amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or
grounding-type plug. A polarized plug has two blades with
one wider than the other. A grounding type plug has two
blades and a third grounding prong. The wide blade or the
third prong are provided for your safety. When the provided
plug does not fit into your outlet, consult an electrician for
replacement of the obsolete outlet.
IMPORTANT: THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE.
BLUE:
BROWN:
As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying
the terminals in your plug, proceed as follows:
The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.
The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED.
Under no circumstances must either of the above wires be connected to the earth terminal of a three pin plug.
NEUTRAL
LIVE
10. Protect the power cord from being walked on or pinched
particularly at plugs, convenience receptacles, and the
point where they exit from the apparatus.
11. Only use attachments/accessories specified by the
manufacturer.
12. Never use with a cart, stand, tripod, bracket,
or table except as specified by the
manufacturer, or sold with the apparatus.
When a cart is used, use caution when
moving the cart/apparatus combination to
avoid injury from tip-over.
13. Unplug this apparatus during lightning storms or when
unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing
is required when the apparatus has been damaged in any
way, such as power-supply cord or plug is damaged, liquid
has been spilled or objects have fallen into the apparatus,
the apparatus has been exposed to rain or moisture, does
not operate normally, or has been dropped.
For the U.K.
2
USING THE UNIT SAFELY
Used for instructions intended to alert
the user to the risk of death or severe
injury should the unit be used
improperly.
Used for instructions intended to alert
the user to the risk of injury or material
damage should the unit be used
improperly.
* Material damage refers to damage or
other adverse effects caused with
respect to the home and all its
furnishings, as well to domestic
animals or pets.
001
• Before using this unit, make sure to read the
instructions below, and the Owner’s Manual.
..........................................................................................................
002a
• Do not open or perform any internal modifications on the unit.
..........................................................................................................
003
• Do not attempt to repair the unit, or replace parts
within it (except when this manual provides
specific instructions directing you to do so). Refer
all servicing to your retailer, the nearest EDIROL/
Roland Service Center, or an authorized EDIROL/
Roland distributor, as listed on the "Information"
page.
..........................................................................................................
004
• Never use or store the unit in places that are:
• Subject to temperature extremes (e.g., direct
sunlight in an enclosed vehicle, near a heating
duct, on top of heat-generating equipment); or
are
• Damp (e.g., baths, washrooms, on wet floors);
or are
• Humid; or are
• Exposed to rain; or are
• Dusty; or are
• Subject to high levels of vibration.
..........................................................................................................
007
• Make sure you always have the unit placed so it is
level and sure to remain stable. Never place it on
stands that could wobble, or on inclined surfaces.
..........................................................................................................
008a
• The unit should be connected to a power supply
only of the type described in the operating instructions, or as marked on the unit.
..........................................................................................................
The symbol alerts the user to important instructions
or warnings.The specific meaning of the symbol is
determined by the design contained within the
triangle. In the case of the symbol at left, it is used for
general cautions, warnings, or alerts to danger.
The symbol alerts the user to items that must never
be carried out (are forbidden). The specific thing that
must not be done is indicated by the design contained
within the circle. In the case of the symbol at left, it
means that the unit must never be disassembled.
The ● symbol alerts the user to things that must be
carried out. The specific thing that must be done is
indicated by the design contained within the circle. In
the case of the symbol at left, it means that the powercord plug must be unplugged from the outlet.
009
• Do not excessively twist or bend the power cord,
nor place heavy objects on it. Doing so can
damage the cord, producing severed elements and
short circuits. Damaged cords are fire and shock
hazards!
..........................................................................................................
010
• This unit, either alone or in combination with an
amplifier and headphones or speakers, may be
capable of producing sound levels that could
cause permanent hearing loss. Do not operate for
a long period of time at a high volume level, or at
a level that is uncomfortable. If you experience
any hearing loss or ringing in the ears, you should
immediately stop using the unit, and consult an
audiologist.
..........................................................................................................
011
• Do not allow any objects (e.g., flammable material,
coins, pins); or liquids of any kind (water, soft
drinks, etc.) to penetrate the unit.
..........................................................................................................
013
• In households with small children, an adult
should provide supervision until the child is
capable of following all the rules essential for the
safe operation of the unit.
..........................................................................................................
014
• Protect the unit from strong impact.
(Do not drop it!)
..........................................................................................................
3
015
• Do not force the unit’s power-supply cord to share
an outlet with an unreasonable number of other
devices. Be especially careful when using
extension cords—the total power used by all
devices you have connected to the extension
cord’s outlet must never exceed the power rating
(watts/amperes) for the extension cord. Excessive
loads can cause the insulation on the cord to heat
up and eventually melt through.
..........................................................................................................
016
• Before using the unit in a foreign country, consult
with your retailer, the nearest EDIROL/Roland
Service Center, or an authorized EDIROL/Roland
distributor, as listed on the "Information" page.
..........................................................................................................
101a
• The unit should be located so that its location or
position does not interfere with its proper ventilation.
..........................................................................................................
102b
• Always grasp only the plug on the power-supply
cord when plugging into, or unplugging from, an
outlet or this unit.
..........................................................................................................
104
• Try to prevent cords and cables from becoming
entangled. Also, all cords and cables should be
placed so they are out of the reach of children.
..........................................................................................................
106
• Never climb on top of, nor place heavy objects on
the unit.
..........................................................................................................
107b
• Never handle the power cord or its plugs with wet
hands when plugging into, or unplugging from,
an outlet or this unit.
..........................................................................................................
108a
• Before moving the unit, disconnect the power
plug from the outlet, and pull out all cords from
external devices.
..........................................................................................................
109a
• Before cleaning the unit, turn off the power and
unplug the power cord from the outlet
(Maintenance → p. 5).
..........................................................................................................
110a
• Whenever you suspect the possibility of lightning
in your area, pull the plug on the power cord out
of the outlet.
..........................................................................................................
118 modified
• Take care not to allow children to swallow the
included rubber feet during handling. Also be
sure to attach the feet to the speakers' underside to
protect the surfaces on which they are placed.
..........................................................................................................
4
IMPORTANT NOTES
291b
In addition to the items listed under “IMPORTANT SAFETY INSTRUCTIONS” and “USING THE UNIT SAFELY” on pages
2–4, 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.
308
• When it is necessary to switch off the power completely,
first switch off the unit's power switch, then unplug its
power cord from the outlet. To facilitate doing this, you
should plug the power cord into an outlet that is as close
to the unit as possible, and can be easily reached when
necessary.
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.
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 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
• Do not allow objects to remain on top of the unit while it is
in operation. Placing heavy objects on this unit may result
in injury if it overturns or falls.
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
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.
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.
Add
• Be sure to avoid inserting your fingers in the bass reflex
ports when transporting or moving the speakers, as your
fingers may become wedged and stuck in the ports.
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 information on cable specifications, contact the manufacturer of the cable.
5
Panel Description
Left Channel
fig.2
FROM RIGHT
1
1. L Channel Input Jack
Connect this to L Channel Output Jack 10 on the rightside unit. For the connection, use the included speaker
cable.
2. POWER Switch, POWER/STANDBY Indicator
The POWER/STANDBY Indicator lights up in red
during standby, and lights up in green when power is on.
3. PHONES Jack
When you connect headphones to this jack, no sound
will be heard from the speakers.
4. BASS Control Knob
5. TREBLE Control Knob
These adjust the tones of the bass and treble. Set to center
to make the tones flat.
Right Channel
fig.3
2 3 4 5 6
The features below apply only to the
MA-10D.
A. VOLUME Knob (DIGITAL/LINE 1)
This adjusts the volume of devices connected to digital
input connectors B, C, E, and LINE 1 Input Jack 8.
B. Digital Input Connector (Optical)
This is the digital input connector for optic-fiber cable.
* When you connect a cable to this connector, the sound of
devices connected to digital input connector C or E will
not be heard.
C. Digital Input Connector (Optical)
This is the digital input connector for optic-fiber cable.
7
(A)
BCDE
9 10 11
8
6. VOLUME Knob (LINE 1)
7. VOLUME Knob (LINE 2)
These adjust the volume of devices connected to LINE 1
Input Jack 8, and to LINE 2 Input Jacks 9, respectively.
8. LINE 1 Input Jack (stereo mini type)
9. LINE 2 Input Jacks (L, R) (RCA pin type)
10.L Channel Output Jack
Connect this to L Channel Input Jack 1 on the left-side
unit.
11.AC Inlet
Connect the included Power cord here (p. 17). Plug it
firmly in, so that the cable does not accidentally become
disconnected.
6
D. Digital Input Select Switch
This switch selects digital input connector C or E on the
rear panel. Select the connector used for the input signal.
* When you connect a cable to digital input connector B on
the front panel, the sound of the device connected to B
will be heard independently of this switch.
E. Digital Input Connector (Coaxial)
This is the digital input connector for coaxial cable.
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