Onkyo M-282 - amplifier User manual

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4

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Contents

2

Channel

Amplifier

M-282

Before

using

Important

Safeguards

Features.

Supplied

accessory

...

Precautions.

Instruction

Manual

Facilities

and

connections

Rear

panel

facilities

and

connections.

Connection

diagram.

Front

panel

facilities

and

connections

Operations.

Thank

you

for

purchasing

the

Onkyo

2

Channel

Amplifier.

Please

read

this

manual

thoroughly

before

making

connections

and

plugging

in

the

unit.

Following

the

instructions

in

this

manual

will

enable

you

to

obtain

optimum

performance

and

listening

enjoyment

from

your

new

2

Channel

Amplifier.

Please

retain

this

manual

for

future

reference.

Appendix

Troubleshooting

guide...

Specifications

....•.Back

co

1

Features

Precautions

WIDE

RANGE

AMPLIFIER

TECHNOLOGY

(WRAT)

WRAT

virtually

eliminates

the

adverse

effects

of

counter¬

electromotive

force

by:

1)

applying

an

uncommonly

low

amount

of

NFB

(negative

feed¬

back),

2)

using

carefully

selected,

high-tolerance,

wide

range

parts

in

all

critical

sections,

and

3)

incorporating

innovative

circuit

topology

based

upon

decades

of

high-end

amplifier

design

experience

—

the

final

result

is

flat

response

beyond

100

kHz.

AUTO

POWER

ON/OFF

FUNCTION

You

can

turn

on

and

off

the

M-282

via

a

signal

input

to

the

AUDIO

IN

jacks

or

12

V

TRIGGER

IN

jack.

AUDIO

IN/OUT

LINK

FUNCTION

The

signal

inputs

from

the

AUDIO

IN

jacks

are

output

from

the

AUDIO

OUT

jacks.

When

used

as

a

2

channel

amplifier

in

a

multi

room

configuration,

you

can

connect

several

M-282s

to

enjoy

the

same

source

in

several

rooms.

1.

Warranty

Claim

You

can

find

the

serial

number

on

the

rear

panel

of

this

unit.

In

case

of

warranty

claim,

please

report

this

number.

2.

Recording

Copyright

Recording

of

copyrighted

material

for

other

than

personal

use

is

illegal

without

permission

of

the

copyright

holder.

3.

AC

Fuse

The

fuse

is

located

inside

the

chassis

and

is

not

user-serviceable.

If

the

power

does

not

come

on,

contact

your

Onkyo

authorized

service

sta¬

tion.

4.

Care

From

time

to

time

you

should

wipe

the

front

and

rear

panels

and

the

cabinet

with

a

soft

cloth.

For

heavier

dirt,

dampen

a

soft

cloth

in

a

weak

solution

of

mild

detergent

and

water,

wring

it

out

dry,

and

wipe

off

the

dirt.

Following

this,

dry

immediately

with

a

clean

cloth.

Do

not

use

rough

material,

thinner,

alcohol

or

other

chemi¬

cal

solvents

or

cloths

since

these

could

damage

the

finish

or

re¬

move

the

panel

lettering.

5.

Power

WARNING

BEFORE

PLUGGING

IN

THE

UNIT

FOR

THE

FIRST

TIME,

READ

THE

FOLLOWINaSECTION

CAREFULLY.

The

voltage

of

the

available

power

supply

differs

according

to

country

or

region.

Be

sure

that

the

power

supply

voltage

of

the

area

where

this

unit

will

be

used

meets

the

required

voltage

(e.g.,

AC

120

V,

60

Hz)

written

on

the

rear

panel.

For

Canadian

models

For

models

having

a

power

cord

with

a

polarized

plug:

CAUTION:

TO

PREVENT

ELECTRIC

SHOCK,

MATCH

WIDE:

BLADE

OF

PLUG

TO

WIDE

SLOT,

FULLY

INSERT.

Modclc

pour

les

Canadicn

Sur

les

modeles

dont

la

fichc

est

polarisee:

ATTENTION:

POUR

E

VITER

LES

CHOCS

ELECTRIQUES

5NTRODUIRE

LA

LAME

LA

PLUS

LARGE

DE

LA

FICH'

DANS

LA

BORNE

CORRESPONDANTE

DE

LA

PRISE

E',

POUSSER

JUSQU’AU

FOND.

Supplied

accessory

Check

that

the

following

accessory

is

supplied

with

the

M-282.

Power

cord

x

1

Rear

panel

facilities

and

connections

Caution:

•

Be

sure

to

always

refer

to

the

instructions

that

came

with

the

component

that

you

are

connecting.

•

Do

not

plug

in

the

power

cord

until

all

connections

have

been

made.

•

Do

not

make

connections

to

input

or

output

jacks

while

the

M-282

is

turned

on.

•

Always

turn

the

volume

of

the

control

amplifier

or

preamplifier

down

before

turning

on

the

M-282.

•

For

input

and

output

jacks,

red

connectors

(marked

R)

are

used

for

the

right

channel

and

white

connectors

(marked

L)

are

used

for

the

left

channel.

Insert

all

plugs

and

connectors

securely.

Improper

connections

can

result

in

noise,

poor

performance,

or

damage

to

the

Do

not

bind

audio

connection

cables

with

power

cords

and

speaker

cables.

Doing

so

may

adversely

affect

the

sound

quality.

rn

gnd

Use

this

GND

terminal

for

connecting

the

ground

(or

earth)

wire

of

other

component

if

humming

noise

is

heard.

2

1

AUDIO

IN/OUT

These

are

the

analog

audio

inputs

and

outputs.

Use

an

RCA-type

audio

connection

cable

to

connect

the

output

jacks

of

the

device

to

the

AUDIO

IN

jacks

on

the

M-282.

When

connecting

a

control

amplifier

or

preamplifier,

connect

the

PRE

OUT

jacks

to

the

AUDIO

IN

jacks.

If

you

connect

the

AUDIO

OUT

jacks

of

the

M-282

to

the

AUDIO

IN

jacks

of

another

M-282,

the

signal

input

at

the

AUDIO

IN

jacks

of

the

M-282

is

also

output

from

the

AUDIO

OUT

jacks

(Audio

In/Out

Link

Function).

If

you

set

the

TRIGGER

switch

to

AUDIO,

the

power

of

the

connected

M-282

turns

on

automatically

when

an

audio

signal

is

supplied

to

the

AUDIO

IN

jacks

(Auto

Power

On/Off

Function),

3

I

INPUT

LEVEL

Turn

this

INPUT

LEVEL

control

to

adjust

the

input

level

of

the

signal

from

the

AUDIO

IN

jacks.

Normally,

set

to

MAX.

4|

TRIGGER

Set

this

TRIGGER

switch

before

turning

on

the

M-282.

To

turn

on

the

M-282

with

the

^signal

input

from

the

12V

TRIGGER

IN

jack,

set

the

TRIGGER

switch

to

12V

TRIGGER.

To

turn

on

the

M-282

with

the

signal

input

from

the

AUDIO

IN

jack,

set

the

TRIGGER

switch

to

AUDIO

(Auto

Power

On/Off

Function).

If

you

do

not

use

Auto

Power

Function,

set

the

TRIGGER

switch

to

OFF.

5|

12V

TRIGGER

IN

If

the

connected

control

amplifiers

or

preamplifiers

have

a

12V

TRIGGER

output

jack,

use

1/8-inch

2P

mini-jack

cable

to

connect

the

12V

TRIGGER

IN

jack

on

the

M-282.

This

jack

works

on

between

5

to

12

volts

DC.

When

the

M-282

is

in

the

standby

state

and

the

TRIGGER

switch

is

set

to

12V

TRIGGER,

you

can

switch

the

M-282

between

the

on

and

standby

states

with

operations

at

the

control

amplifier

or

preamplifier.

Note:

When

a

plug

is

connected

to

the

12V

TRIGGER

jack,

be

sure

to

connect

the

analog

output

jacks

(or

PRE

OUT

jacks)

of

the

device

to

the

AUDIO

IN

jacks

of

the

M-282.

Otherwise,

no

sound

will

be

produced.

-Rear

panel

facilities

and

connections

6

SPEAKERS

Connect

the

jacks

on

the

speakers

to

the

SPEAKERS

terminals

using

the

speaker

cables.

These

terminals

are

compatible

with

banana

plug

connections.

1

Strip

away

15

mm

(

5

/s

in.)

of

wire

insulation.

2

Twist

wire

ends

very

tight.

3

Unscrew.

4

Insert

wire.

5

Screw.

15mm

2

When

you

are

using

only

one

speaker

or

when

you

wish

to

listen

to

monaural

(mono)

sound,

a

single

speaker

should

never

be

connected

in

parallel

to

both

the

right

and

left-

channel

terminals

simultane¬

ously.

o

1..

..

r

o

o

O

NO!

^

\

/

O

w

o

r

o

o

*1

>

<>

o

,

O

0

To

prevent

damage

to

cir¬

cuitry,

never

short-circuit

the

positive

(+)

and

negative

(~)

speaker

wire.

3

4

5

4

•

Do

not

connect

any

devices

other

than

speakers

to

these

terminals.

•

Be

sure

not

to

mistake

the

positive

and

negative

outputs

or

the

left

and

right

speakers.

Doing

so

will

result

in

an

unnatural

sound

space.

•

Only

connect

speakers

with

an

impedance

of

6

ohms

or

higher.

If

a

speaker

with

an

impedance

of

less

than

6

ohms

is

connected,

it

may

damage

the

M-282.

7

AC

INLET

Plug

the

supplied

power

cord

into

this

AC

INLET

and

then

into

the

power

outlet

on

the

wall.

*

Do

not

use

a

power

cord

other

than

the

one

supplied

with

the

M-282.

The

power

cord

supplied

is

designed

for

use

with

the

M-282

and

should

not

be

used

with

any

other

device.

•

Never

disconnect

the

power

cord

from

the

M-282

while

the

other

end

is

plugged

intolhe

wall

outlet.

Doing

so

may

cause

an

electric

shock.

Always

connect

by

plugging

into

the

wall

outlet

last

and

disconnect

by

unplugging

from

the

wall

outlet

first.

Connection

diagram

Since

the

many

users

will

purchase

the

M-282

together

with

the

TX-DS787,

here

is

an

explanation

of

how

to

connect

the

M-282

to

the

TX-DS787.

When

connecting

the

M-282

to

2

channel

control

amplifier

or

preamplifier,

connect

the

AUDIO

IN

jacks

of

the

M-282

to

the

PRE

OUT

FRONT

jacks

of

the

control

amplifier

or

preamplifier,

and

connect

the

front

speakers

to

the

SPEAKERS

terminals

of

the

M-282.

TX-DS787

PRE

OUT

SURR

BACK

jacks

Power

cord

(supplied)

Front

panel

facilities

and

connections

2

m

POWER

After

plugging

in

the

power

cord

into

the

rear

panel

and

wall

outlet,

pressing

this

switch

connects

the

M-282

to

the

AC

mains.

The

function

of

this

switch

differs

depending

on

the

setting

of

the

TRIGGER

switch

on

the

rear

panel.

Before

turning

on

the

power,

he

sure

to

set

the

TRIGGER

switch.

Besides,

before

turning

on

the

power,

make

sure

all

cables

are

properly

connected.

The

TRIGGER

switch

is

factory

set

to

OFF,

When

the

TRIGGER

switch

is

set

to

OFF

Pressing

the

POWER

switch

turns

on

the

M-282.

The

STANDBY/

ON

indicator

lights

orange

after

flashing

red

for

5

seconds.

Press

the

POWER

switch

again

to

turn

off

the

M-282.

When

the

TRIGGER

switch

is

set

to

AUDIO

If

no

signal

is

supplied

to

the

AUDIO

IN

jacks,

pressing

the

POWER

switch

enters

the

standby

state

and

the

STANDBY/ON

indicator

lights

red

after

flashing

red

for

5

seconds.

If

an

audio

signal

is

supplied

to

the

AUDIO

IN

jacks,

pressing

the

POWER

switch

turns

on

the

M-282

and

the

STANDBY/ON

indicator

lights

orange

after

flashing

red

for

5

seconds.

If

the

M-282

is

in

the

standby

state,

the

M-282

turns

on

automatically

when

an

audio

signal

is

supplied

to

the

AUDIO

IN

jacks.

When

the

signal

input

to

the

AUDIO

IN

jacks

is

not

supplied

for

more

than

4

minutes,

the

indicator

turns

to

red

and

the

M-282

enters

standby

state

(Auto

Power

On/Off

Function).

Press

the

POWER

switch

to

turn

off

the

M-282.

When

the

TRIGGER

switch

is

set

to

12V

TRIGGER

If

no

signal

is

supplied

to

the

12V

TRIGGER

IN

jack,

pressing

the

POWER

switch

enters

the

standby

state

and

the

STANDBY/ON

indicator

lights

red.

If

12V

DC

is

supplied

to

the

12V

TRIGGER

IN

jack,

pressing

the

POWER

switch

turns

on

the

M-282

and

the

STANDBY/ON

indicator

lights

orange

after

flashing

red

for

5

seconds.

If

the

M-282

is

in

the

standby

state,

the

M-282

turns

on

automatically

when

12V

DC

is

supplied

to

the

12V

TRIGGER

IN

jack.

When

the

signal

input

to

the

12V

TRIGGER

IN

jack

is

interrupted,

the

indicator

lights

red

and

the

M-282

enters

standby

state

(Auto

Power

On/Off

Function).

Press

the

POWER

switch

to

turn

off

the

M-282.

Note:

You

cannot

use

the

Auto

Power

On

Function

when

the

power

is

turned

off.

To

use

the

Auto

Power

On

Function,

leave

the

M-282

in

the

standby

state

once

the

M-282

enters

the

standby

state.

2

STANDBY/ON

Indicator

The

STANDBY/ON

indicator

lights

red

when

the

M-282

is

in

the

standby

state

and

lights

orange

when

the

M-282

is

turned

on.

Operations

Troubleshooting

guide

To

listen

to

music

or

view

your

favorite

movies,

follow

the

operations

below.

The

procedures

given

below

assume

that

the

other

system

components

are

already

connected.

(For

example,

that

the

source

components

are

already

connected

to

the

control

amplifier

or

the

preamplifier.)

1.

Lower

the

volume

at

the

control

amplifier

or

preamplifier.

Lower

the

volume

of

the

control

amplifier

or

preamplifier

to

the

minimum

so

that

when

the

M-282

is

turned

on,

you

do

not

hear

loud

unwanted

sounds.

2.

Select

the

input

on

the

control

amplifier

or

preamplifier.

Select

the

proper

input

on

the

control

amplifier

or

preamplifier.

3.

Slowly

increase

the

volume

of

the

control

amplifier

or

preamplifier.

Now

all

that

remains

is

to

control

the

control

amplifier

or

preamplifier

and

the

other

connected

system

components

to

enjoy

your

music

or

movies.

No

power.

•

The

power

cord

is

disconnected.

Connect

the

power

cord.

•

The

setting

of

the

TRIGGER

switch

is

wrong.

—i

►

Set

the

TRIGGER

switch

to

the

appropriate

position.

•

With

the

TRIGGER

switch

set

to

a

position

other

than

OFF,

the

POWER

switch

is

pressed

again

immediately

after

turning

the

power

off.

—

►

Be

sure

to

leave

more

than

3

seconds

before

turning

the

power

on

again.

Power

turns

on

but

no

sound.

•

Bad

connections

or

wiring.

—>

Check

connections,

speaker

cables,

etc.

•

Amplifier

protection

circuitry

has

been

activated.

—

►

Contact

your

Onkyo

Service

Center.

•

The

INPUT

LEVEL

control

is

set

to

MIN.

—

►

Turn

the

INPUT

LEVEL

control

to

adjust

the

input

level.

The

STANDBY/ON

indicator

does

not

light

when

the

POWER

switch

is

pressed.

•

Bad

connections

or

wiring.

—

►

Check

if

the

power

cord

is

properly

connected.

If

the

indicator

still

does

not

light,

turn

off

the

M-282,

disconnect

the

power

cord,

and

contact

your

Onkyo

Service

Center.

The

STANDBY/ON

indicator

flashes

red

for

more

than

7

seconds

when

the

POWER

switch

is

pressed.

•

A

malfunction.

—

►

Press

the

POWER

switch

to

turn

off

the

M-282.

After

3

seconds,

press

the

POWER

switch

again

to

turn

on

the

M-282.

If

the

indicator

still

flashes,

turn

off

the

M-282,

disconnect

the

power

cord,

and

contact

your

Onkyo

Service

Center.

No

sound

from

the

speaker,

or

at

very

low

volume.

•

Bad

connections

or

wiring.

-

♦

Check

connections,

speaker

cables,

etc.

•

The

INPUT

LEVEL

control

is

set

to

MIN.

—*

Turn

the

INPUT

LEVEL

control

to

adjust

the

input

level.

•

The

settings

on

the

control

amplifier

or

preamplifier

are

wrong.

-+

Check

the

settings

on

the

control

amplifier

or

preamplifier.

The

left

and

right

sounds

are

unbalanced

or

reversed.

•

Bad

connections

or

wiring.

—

►

Check

connections,

speaker

cables,

etc.

•

The

polarity

of

the

speaker

cable

is

wrong.

Check

the

polarity

of

the

speaker

cable.

Specifications

AMPLIFIER

SECTION

Power

Output:

Dynamic

Power

Output:

Total

Harmonic

Distortion:

IM

Distortion:

Damping

Factor:

Input

Sensitivity

and

Impedance:

Output

Level

and

Impedance:

Rated

Speaker

Impedance:

Frequency

Response:

Signal-to-Noise

Ratio:

100

Watts

per

channel

min.

RMS

at

8

ohms,

both

channel

driven

from

20

to

20,000

Hz

with

no

more

than

0.08

%

total

harmonic

distortion.

125

Watts

per

channel

min.

RMS

at

6

ohms,

both

channel

driven

from

1

kHz

with

no

more

than

0.1

%

total

harmonic

distortion.

2

x

140

Watts

at

8

ohms

0.08

%

at

rated

power

0.08

%

at

rated

power

100

at

8

ohms

1

V,

50

kohms

1

V,

10

kohms

6

ohms

MIN

10

Hz

-

100

kHz,

±1

dB

110

dB

(IHF

A,

0.5

V

input)

GENERAL

Power

Supply:

Power

Consumption:

Dimensions

(W

x

H

x

D):

Weight:

Specifications

and

features

are

AC

120

V,

60

Hz

2.5

A

435

x

145

x

316

mm

17-Vs"

xS-'Vift"

x

12-

7

/i6"

8.5

kg,

18.7

lbs.

subject

to

change

without

notice,

ONKYO

CORPORATION

Sales

&

Product

Planning

Div.:

2-1,

Nisshin-cho,

Neyagawa-shi,

OSAKA

572-8540,

JAPAN

Tel:

072-831-8111

Fax:072-833-5222

ONKYO

U.S.A.

CORPORATION

200

Williams

Drive,

Ramsey,

N.J.

07446,

U.S.A.

Tel:

201-825-7950

Fax:201-825-8150

E-mail:

[email protected]

ONKYO

EUROPE

ELECTRONICS

GmbH

Industriestrasse

20,

82110

Germering,

GERMANY

Tel:

089-849-320

Fax:089-849-3265

E-mail:

[email protected]

ONKYO

CHINA

LIMITED

Units

2102-2107,

Metroplaza

Tower

I,

223

Hing

Fong

Road,

Kwai

Chung,

mt

HONn

KONG

Tel:852-2429-31

IS

Tax:

852-2428-9039

1

HOMEPAGE

|

http://www.onkyo.co.