Roland M-240R User manual

Roland

24]

CHANNEL

LINE

MIXER

M-2ao0rR

OWNER'S

MANUAL

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19ESv09T

CAUTION

RISK

OF

ELECTRIC

SHOCK

DO

NOT

OPEN

A

ATTENTION

risoue

ve

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

A

1A

The

lightning

flash

with

arrowhead

syrnbol,

within

an

equilateral

tnangle.

1s

intended

to

alert

the

user

tu

the

presence

of

un-

insulated

“dangerous

voltage”

within

the

product's

enclosure

that

may

be

of

sufficient

magnitude

to

constitute

a

risk

of

elecinc

shock

to

persons

The

exclamation

point

within

an

equilateral

triangle

1s

intended

to

aiert

the

user

to

the

presence

of

important

operating

and

maintenance

(servicing)

instructions

in

the

literature

accom-

panying

the

product

IMPORTANT

SAFETY

INSTRUCTIONS

WARNING

—

When

using

electric

products,

basic

precautions

should

always

be

followed,

including

the

following:

1.

Read

all

the

instructions

before

using

the

product.

2.

Do

not

use

this

product

near

water

—

for

example,

near

a

bathtub,

washbowl,

kitchen

sink,

in

a

wet

basement,

or

near

a

swimming

pool,

or

the

like.

3.

This

product

should

be

used

only

with

a

cart

or

stand

that

is

recommended

by

the

manufacturer.

4.

This

product,

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

consult

an

audiologist.

5.

The

product

should

be

located

so

that

its

location

or

position

does

not

interfere

with

its

proper

ventilation.

6.

The

product

should

be

located

away

from

heat

sources

such

as

radiators,

heat

registers,

or

other

products

that

produce

heat.

7.

The

product

should

avoid

using

in

where

it

may

be

effected

by

dust.

8.

The

product

should

be

connected

to

a

power

supply

only

of

the

type

described

in

the

operating

instructions

or

as

marked

on

the

product.

9.

10.

11.

12.

13.

14.

The

power-supply

cord

of

the

product

should

be

unplugged

from

the

outlet

when

left

unused

for

a

long

period

of

time.

Do

not

tread

on

the

power-supply

cord.

Do

not

pull

the

cord

but

hold

the

plug

when

unplugging.

When

setting

up

with

any

other

instruments,

the

procedure

should

be

followed

in

accordance

with

instruction

manual.

Care

should

be

taken

so

that

objects

do

not

fall

and

liquids

are

not

spilled

into

the

enclosure

through

openings.

The

product

should

be

serviced

by

qualified

service

per-

sonnet

when:

A.

The

power-supply

cord

or

the

plug

has

been

damaged;

or

Objects

have

fallen,

or

liquid

has

been

spilled

into

the

product;

or

The

product

has

been

exposed

to

rain;

or

The

product

does

not

appear

to

operate

normally

or

exhibits

a

marked

change

in

performance;

or

The

product

has

been

dropped,

or

the

enclosure

dam-

aged.

m

99

.

Do

not

attempt

to

service

the

product

beyond

that

described

in

the

user-maintenance

instructions.

All

other

servicing

should

be

referred

to

qualified

service

personnel.

SAVE

THESE

INSTRUCTIONS

WARNING:

For

the

U.K.

THIS

APPARATUS

MUST

BE

EARTHED

IMPORTANT:

THE

WIRES

IN

THIS

MAINS

LEAD

ARE

COLOURED

IN

ACCORDANCE

WITH

THE

FOLLOWING

CODE.

GREEN-AND-YELLOW:

EARTH,

BLUE:

NEUTRAL,

BROWN:

LIVE

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

GREEN-AND-YELLOW

must

be

connected

to

the

terminal

in

the

plug

which

is

marked

by

the

letter

E

or

by

the

safety

earth

symbol

@®or

coloured

GREEN

or

GREEN-AND-YELLOW.

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.

The

product

which

is

equipped

with

a

THREE

WIRE

GROUNDING

TYPE

AC

PLUG

must

be

grounded.

Thank

you

for

purchasing

the

line

mixer.

To

make

the

best

use

of

the

m

FEATURES

Roland

M-240R.

The

M-240R

is

a

compact

yet

versatile,

high-quality

24

channel

unit,

please

read

this

manual

carefully.

The

M-240R

is

a

4U

rack-mountable,

24

channel

mixer

specifically

designed

for

line

input

sources.

There

is

independent

control

over

each

signal's

input

level

(-30dBm

to

+4dBm)

and

stereo

positioning

(panning).

The

M-240R

features

4

independent

SEND

OUT

jacks

and

6

Stereo

RETURN

jacks.

What's

more,

the

output

of

1

of

the

4

SEND

OUT

jacks

can

be

switched

to

pre-

fader

or

post-fader.

These

jacks

can

be

used

for

monitoring

applications

or

with

various

effect

devices.

In

order

to

maintain

the

signal

integrity

and low

noise

output

common

to

all

M-

series

mixers,

the

M-240R

has

been

designed

to

meet

exacting

standards.

Two

independent

outputs

(MASTER

OUT

and

SUB

OUT)

are

provided.

Each

channel’s

output

can

be

sent

to

either

or

both

of

these

outputs

using

the

Output

Select

Switch.

Moreover,

the

MASTER

OUT

includes

a

Mute

Switch

and

Mute

Indicator

which

enhance

the

M-240R’‘s

flexibility.

As

well

as

the

MASTER

and

SUB

controls,

a

MONITOR

control

is

also

provided.

This

allows

independent

volume

control

of

the

MASTER

OUT

signal

or

the

SUB

OUT

signal

through

the

MONITOR

OUT

jacks.

These

signals

can

also

be

heard

through

headphones.

The

MONITOR

BUS

INPUT

allows

you

to

hear

the

tempo

"click"

from

a

sequencer

through

the

MONITOR

OUT

jacks

or

the

Headphone

jack.

The

BUS

INPUT

contains

the

Send

jacks

(AUX,

EFF1-3)

which

permit

“full-function”

stacking

of

M

Series

mixers.

The

M-240R’s

MASTER

OUT

XLR

connectors

(balanced

output)

allow

the

unit

to

function

in

professional

environments.

A

Peak/Signal

(PEAK/SIG)

Indicator

is

provided

for

each

channel

and

a

5-segment

Peak

Meter

is

provided

in

the

MASTER/SUB

section.

These

indicators

assist

in

setting

accurate

signal

levels.

In

addition,

you

can

monitor

the

pre-fader

signal

level

of

the

MASTER

OUT

(with

the

MONITOR

Peak

Meter)

by

pressing

the

MONITOR

SELECT

switch.

TABLE

OF

CONTENTS

Block

Diagram

and

Signal

Flow

....

7

J.

Channel

Section

.......cccseccecsssssesssesessseseerenes

7

2.

Master

Section

oc.

ccescssssessscsreesssnsarsssneneeees

7

a

RETURN

scicesectesdcoetanee

deltas:

7

b.

External

In

(EXT

IN)

wee

cceeesscceeseeee

7

GC)

BUS:

IN:

ctsetsshorseiiicndnnacstenasesencieswcoeeiesd

7

G.

MASTER

OUT

Qe

cesesessestssesssesesessseesneesee

8

e.

SUB

OUT...

we

8

f.

MONITOR

OUT............

a

8

g.

Effect

Send

(EFFECT

1-3

SEND)

...

as

8

h.

AUX

Send

(AUX

SEND)...

ee

ceseeeeeeee

8

[2|Panel

Descriptions

.........cccccsseeeeee

9

T.

Channel

Section

oe

ceccesssecseseesesseseseeeeee

9

2.

Master

Section

.......ccsssessesssesessesereesssssessees

10

32

Rear:

Panel

csic.cisccccscates

acest

cissigentessvéascssedeoneoien

12

[3|Connections

and

Operation.........

wane

MBasic

Procedure

qu...

ccsceccsseseseceseessceneeeeeeee

14

1.

Basic

Setup

with

Electronic

Musical

INSEFUMENTS,

CTC.

oe

ecccceescceeeteeeeeeeteteeeeeeeees

14

MMixing

Electronic

Musical

Instruments

UC

sisevia

ata

tiesasdcctiahss

ouuiaahetesedOtacetdstevan

ttcestabuance

14

2.

Setup

Example

with

Effects

Device.............

15

mMEffects

processing

with

a

delay,

reverb,

OLGS

asic

Seanpebeeditcevats

icerettaeeteeet

oem

aeeece

anes

15

3.

Example

Setup

using

the

MASTER/SUB

Outs...

eeeseeeseseneeees

16

mSimple

grouping

using

the

SUB

Outs....

16

4.

Monitoring

(

Foldback

}

with

AUX

outputs

and

MONITOR

OUT

.......csscsceseecccesterenenseee

18

WMFOldbaCk

civ...

cei

ioceiantinssacctelenaassties

18

MMonitoring

using

the

MONITOR

OUT

.....

19

{1]

Monitoring

the

signal

before

the

MASTER

OUT

volume

control...........

19

{2]

Monitoring

the

signal

before

the

SUB

OUT

volume

control

.....

19

5.

Stacking

Examples...

cesccssssscsesssresvesseenes

20

[4|Level

Diagram

ou...

hat

[5|Input/Output

Standard

ou...

22

[6

Specifications

.......cccccccsccssssssscsssesessssseeeeen

23

BANFOTMATION

.s2ciceccsneceiaassecedcdecoesucoteceeddescocdesevaavderseeeden

24

by

ROLAND

CORPORATION

All

rights

reserved.

No

part

of

this

publication

may

be

reproduced

in

any

form

without

the

written

permission

of

ROLAND

CORPORATION.

mimportant

Notes

[Power

Supply]

[Placement]

[Maintenance]

In

addition

to

the

items

listed

under

Safety

Precautions

on

page

2,

please

read

and

adhere

to

the

following:

e

When

making

any

connections

with

other

devices,

always

turn

off

the

power

to

all

equipment

first;

this

will

help

prevent

damage

or

malfunction.

e

Do

not

use

this

unit

on

the

same

power

circuit

with

any

device

that

will

generate

line

noise,

such

as

a

motor

or

variable

lighting

system.

e

Avoid

damaging

the

power

cord;

do

not

step

on

it,

place

heavy

objects

on

it

etc.

*

Do

not

subject

the

unit

to

temperature

extremes

(eg.

direct

sunlight

in

an

enclosed

vehicle).

Avoid

using

or

storing

the

unit

in

dusty

or

humid

areas

or

areas

that

are

subject

to

high

vibration

levels.

e

Using

the

unit

near

power

amplifiers

(or

other

equipment

containing

large

transformers)

may

induce

hum.

e

This

unit

may

interfere

with

radio

and

television

reception.

Do

not

use

this

unit

in

the

vicinity

of

such

receivers.

e

Do

not

expose

this

unit

to

temperature

extremes

(eg.

direct

sunlight

in

an

enclosed

vehicle

can

deform

or

discolor

the

unit)

or

install

it

near

devices

that

radiate

heat.

e

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

mild

neutral

detergent.

Afterwards,

be

sure

to

wipe

the

unit

thoroughly

with

a

soft,

dry

cloth.

*

Never

use

benzene,

thinners,

alcohol

or

solvents

of

any

kind,

to

avoid

the

risk

of

discoloration

and/or

deformation.

[Additional

Precautions]

Protect

the

unit

from

strong

impact.

Do

not

allow

objects

or

liquids

of

any

kind

to

penetrate

the

unit.

In

the

event

of

such

an

occurrence,

discontinue

use

immediately.

Contact

qualified

service

personnel

as

soon

as

possible.

Never

strike

or

apply

strong

pressure

to

the

signal

level

indicators.

A

small

amount

of

heat

will

radiate

from

the

unit,

and

thus

should

be

considered

normal.

Before

using

the

unit

in

a

foreign

country,

consult

with

qualified

service

personnel.

Should

a

malfunction

occur

(or

if

you

suspect

there

is

a

problem)

discontinue

use

immediately.

Contact

qualified

service

personnel

as

soon

as

possible.

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DESCRIPTIONS

1.

Channel

Section

Cs)

LO)

ES

ew

PeaK/si6

C)

PEAK/SI6

C)

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oe

S

n

4

a

xo

wu

W

@

Peak

Signal

Indicator

These

indicators

will

be

green

when

signals

are

fed

into

the

CHANNEL

INPUT

jacks.

The

indica-

tors

become

red

if

the

signal

level

is

excessive.

In

other

words,

indicators

are

green

when

the

signal

level

is

-20dB

of

nominal

level

after

passing

the

input

sensitivity

circuits,

and

red

at

-6dB

of

the

clipping

level.

@)

SENS

Knob

Use

this

knob

to

adjust

the

input

sensitivity

ac-

cording

to

the

level

of

the

incoming

signal.

The

appropriate

position

of

this

knob

is

the

point

at

which

the

PEAK/SIG

Indicator

is

green,

and

red

only

on

the

highest

input

peaks.

If

the

PEAK/

SIG

Indicator

does

not

light

at

all

with

a

signal

present,

set

the

SENS

Knob

higher

or

increase

the

input

level.

*

The

input

range

is

-30

dBm

to

+4

dBm.

@)

Panpot

Knob

This

knob

positions

the

sound

within

the

stereo

sound

field.

At

the

center

position,

the

sound

will

be

heard

from

the

center

of

the

sound

field.

@)

Effect

Volume

Knobs

(1-3)

These

knobs

control

the

level

of

the

signals

being

sent

to

the

Effect

Send

jacks.

*

The

signal

to

be

sent

to

the

Effect

Send

jacks

is

extracted

after

the

Channel

Volume

Knob

(Post-

fader).

*

The

Effect

Volume

Knob

will

not

function

unless

the

Output

Select

Switch

MASTER

is

turned

on

in

the

channel

where

the

effect

is

to

be

used.

(6)

AUX

Volume

Knobs

These

knobs

adjusts

the

level

of

the

signals

to

be

sent

to

the

AUX

Send.

*

You

can

select

the

point

at

which

the

signals

sent

to

AUX

Send

are

extracted

using

the

AUX

Select

Switch.

*

When

“POST”

is

selected

with

the

AUX

Select

Switch,

the

AUX

Volume

Knob

does

not

function

unless

the

Output

Select

Switch

“MASTER”

is

turned

on

in

the

channe!

where

the

effect

is

to

be

used.

©)

Output

Select

Switch

(MASTER/SUB)

These

switches

select

the

output

jacks

(MASTER

OUT

or

SUB

OUT)

for

the

signal

from

each

channel.

@)

Channel

Volume

Knob

These

knobs

control

the

overall

level

of

each

channel's

signal

before

being

sent

to

the

Master

section.

*

The

nominal

output

of

the

Channel

Volume

Knob

is

obtained

when

it

is

set

to

“10”.

2.

Master

Section

@)

Return

Volume

These

knobs

adjusts

the

level

of

the

signal

fed

into

the

RETURN

jacks.

*

The

nominal

output

of

Return

Volume

is

obtained

when

it

is

set

to

“10”.

@

EXT

IN

(External

In}

Volume

This

knob

adjusts

the

level

of

the

signal

fed

into

the

EXT

IN

jacks.

*

The

nominal

output

of

the

External

Volume

is

obtained

when

it

is

set

to

“10”.

(3)

EXT

IN

(External

In)

Jacks

This

is

where

external

devices

(eg.

another

mixer)

are

connected

to

the

M-240R.

It

consists

of

a

stereo

pair,

but

can

be

used

in

mono

by

using

the

Left

[

L{Mono)

}

side

only.

@

Effect

Send

Volume

These

knobs

control

the

final

output

level

of

the

effect

signal

of

each

channel.

The

signal

is

extracted

after

the

Channel

Volume

Knob

(Post-

fader).

*

The

nominal

output

of

the

Effect

Send

Volume

is

obtained

when

it

is

set

to

“8”.

&)

AUX

Send

Volume

This

knob

controls

the

final

output

level

of

the

AUX

signal

of

each

channel.

*

The

nominal

output

level

is

obtained

when

the

AUX

Send

Volume

is

set

to

“8”.

©

AUX

Select

Switch

This

switch

selects

the

point

at

which

the

signal

to

be

sent

to

the

AUX

Send

is

extracted

from

the

signal

path.

In

the

PRE

(pre-fader)

position,

the

signal

is

extracted

before

the

Channel

Volume

Knob.

In

the

POST

(post-fader)

position,

the

signal

is

taken

after

the

Channel

Volume

Knob.

@

Master

Peak

Meter

This

is

a

peak-reading

meter

that

indicates

the

output

level

from

the

MASTER

OUT

jacks.

At

OdB,

the

standard

level

(+4dBm)

is

output

from

the

MASTER

OUT

jacks.

Monitor

Peak

Meter

This

is

a

peak-reading

meter

that

indicates

the

post-fader

signal

from

the

SUB

OUT

jacks

or

pre-

fader

signal

from

the

MASTER

OUT

jacks.

At

OdB,

the

standard

level

{+4dBm)

is

output

from

the

SUB

OUT

jacks.

*

When

“MASTER”

is

selected

at

the

Monitor

Select

Switch,

the

pre-fader

signal

from

the

MASTER

OUT

jacks

is

indicated.

@)

Mute

Indicator

This

indicator

lights

(orange)

when

the

signal

output

from

the

MASTER

OUT

jacks

is

muted.

Power

Indicator

This

indicator

lights

(red)

when

the

mixer

is

switched

on.

@)

Mute

On/Off

Switch

This

switch

turns

the

output

of

the

MASTER

OUT

jacks

on

and

off.

@2)

Master

Volume

Knob

This

knob

adjusts

the

overall

output

level

at

the

MASTER

OUT

jacks.

*

The

nominal

output

level

is

obtained

when

the

Master

Volume

Knob

is

set

to

“8”.

@)

Master

Balance

Knob

This

knob

controls

the

volume

balance

(L

and

R)

of

the

signal

sent

to

the

MASTER

OUT

jacks.

At

the

center

position,

the

volumes

of

the

L

and

R

signals

are

equal.

Roland M-240R User manual

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