Sony MU-A400 Manuale utente

SON'Y.

Power

Amplifier

MU-A400

MU-A200

—

Operating

Instructions

.,..:

Before

operating

the

unit,

please

read

this

manual

thoroughly

and

retain

for

future

reference.

Mode

d’emplol

pace

Avant

mise

service

cet

appareil,

veuillez

lire

attentivement

mode

d’emploi

conservez

pour

toute

référence

ultérieure.

Bedienungsanleitung

sei

Lesen

Sie

vor

der

Inbetriebnahme

diese

Anleitung

sorgfaltig

durch

und

bewahren

Sie

sie

zum

spateren

Nachschlagen

gut

aul.

Sony

Sound

Tec

Corp.

WARNING

English

prevent

fire

shock

hazard,

not

expose

the

unit

rain

moisture.

avoid

electrical

shock,

not

open

the

cabinet.

Refer

servicing

qualified

personne!

only.

NOTICE

FOR

THE

CUSTOMERS

THE

UNITED

KINGDOM

THIS

APPARATUS

MUST

EARTHED

IMPORTANT

The

wires

this

mains

lead

are

coloured

accordance

with

the

following

code:

Green-and-yellow:

Earth

Blue:

Neutral

Brown:

Live

the

colours

the

wires

the

mains

lead

this

apparatus

may

not

correspond

with

the

coloured

markings

identifying

the

terminals

your

plug

proceed

follows:

The

wire

which

coloured

green-and-yellow

must

connected

the

terminal

the

plug

which

marked

the

letter

the

safety

earth

symbol

coloured

green

green-and-yellow.

The

wire

which

coloured

blue

must

connected

the

terminal

which

marked

with

the

letter

coloured

black.

The

wire

which

coloured

brown

must

connected

the

terminal

which

marked

with

the

letter

coloured

red.

Ble)

me)

Ore)

(Jae

PIEGAUTIONS

owssddiesces

facades

eesti

ciet

cesaee

loep

eoustaasbdevaceasscesiesee

Specifications

............cccsccessseeeeseneseenseseseeees

Block

Diagrams

DiMe@NSIONS.

.............:csccceesreeeescceeseceeenreees

Location

and

Function

Controls

Connection

Examples

...........-ssccsees

Troubleshooting

Guide

...............:eeeeeee

Precautions

Installation

Avoid

installing

leaving

the

unit

location:

near

heat

sources

such

radiators,

airducts

heaters

subject

direct

sunlight

exposed

rain

moisture

where

unventilated

exposed

excess

dust

dirt

subject

mechanical

vibration

shock

Operation

Operate

the

unit

only

220-240

AC,

50/60

Hz.

Unplug

the

unit

from

the

wali

outlet

when

not

used

for

extended

period

time.

disconnect

the

cord,

pull

out

grasping

the

plug.

Never

take

out

the

plug

puiling

the

cord.

;

Should

any

solid

object

liquid

fall

into

the

component,

unplug

the

unit

and

have

checked

qualified

personnel

before

using

again.

Clean

the

cabinet,

panel

and

knobs

periodically

using

soft

cloth

moistened

with

miid

detergent.

Never

use

abrasive

cleanser

chemical

solvents

they

may

mar

the

finish.

you

have

any

questions

problems

concerning

your

unit

that

are

not

covered

this

manual,

please

consult

your

nearest

Sony

dealer.

Specifications

Channel

channels

Input

sensitivity

OdBs

(100W

+100W,

ohm

load

impedance,

both

channels

driven

simultaneously)

Unbalanced

Electronic

balanced

circuit

than

kilo-ohms

(stereo

operation)

than

kilo-ohms

(monaural

operation)

Connector

and

XLR-3-31

type

XLR-3-31

type

jack

Phono

type

__item

——|Stereo

Monaural

(BTL)

Output

terminal

Screw

type

binding

terminal

Rated

output*

MU-A400

260

520

(16

ohms)

800

ohms)

400

ohms)

(both

channels

driven

simultaneously)

Input

impedance

130

+130

ohms)

200

ohms)

(both

channels

driven

simultaneously)

Power

bandwidth

kHz+0.5

Damping

factor

than

150

ohms,

1kHz)

Harmonic

Less

than

0.1%

Less

than

0.1%

distortion

(8ohms,

100

ohms,

200

output)

than

(1kHz:

ohms

load,

rated

output)

260

(16

ohms)

400

ohms)

Channel

separation

Residual

noise

Less

than

100

Less

than

200

(IHF-A,

input

(IHF-A,

input

terminated)

Stacking

output

dBs=

0.775

“1

harmonic

distortion

1kHz

Indicator

10-point

LED

level

meter

PROTECTION

indicator

HIGH

TEMP

indicator

CLIP

indicator

POWER

indicator

Power

requirements

220

240

AC,

50/60

Power

consumption

§MU-A400:

805

MU-A200:

425

Dimensions

MU-A400:

Approx.

482

146

490

(w/h/d)

(19

9/6

inches)

MU-A200:

Approx.

482

102

490

(w/h/d)

(19

inches)

Weight

MU-A400:

Approx.

20.5

_(45

Ibs

oz)

MU-A200:

Approx.

(33

Ibs

02)

Accessories

supplied

power

cord

(1)

Fuse

MU-A400:

(1)

;

MU-A200:

(1)

This

appliance

conforms

with

EEC

Directive

87/308/EEC

regarding

interference

suppression.

Design

and

specifications

are

subject

change

without

notice.

Block

Diagrams

PROTECTION

HIGH

TEMP

BAL/UNBAL

CY oY

OPERATION

CLIP

MONO

INPUT

o——-——0

CH2

OUTPUT

MONO

cH.

o———0®

cHe

INPUT

f°

OUTPUT

CIRCUIT

PROTECTION

fey)

BAL/UNBAL

SW.

OPERATION

PROTECTION

HIGH

TEMP

BAL

MONO

—o~c—!

SAME

OUTo

UNBAL

STEREO

MU-A400

408.5

MU-A200

406.5

MU-A400

MU-A200

MU-A400

Unit:

MU-A200

Moyer:

1d(olam-laleom

melaleiitela

me)

m@xe)ajice)

Front

Panel.

[41]

CLIP

indicator

[2]

HIGH

TEMP

indicator

[3]

PROTECTION

indicator

[4]

OPERATION

indicator

[5]

ATTENUATOR

knob

[6]

Level

meter

POWER

switch

and

pilot

lamp

Ventilation

hole

erg

cen

soa

oreamsstamammes

[1]

CLIP

indicator

(red)

Lights

when

the

output

wave

distorted.

When

the.

indicator

lights

frequently,

the

input

level

too

high

there

problem

the

input

channel.

[2]

HIGH

TEMP(temperature)

indicator

(red)

Lights

when

the

temperature

the

heat

sink

becomes

too

high.

Take

measure

well

ventilated.

[3]

PROTECTION

indicator

(red)

Lights

when

the

protection

circuit

working.

When

you

turn

the

amplifier,

the

indicator

lights

but

goes

off

when

the

unit

starts

work

steadily.

[4]

OPERATION

indicator

(green)

Shows

the

operation

mode

set

the

position

the

OPERATION

switch

the

rear

panel.

STEREO

SAME

OUT

Lights

See

has

the

same

signal

CHANNEL

(monaural)

Monaural

through

BTL

[5]

ATTENUATOR

knob

CHANNEL

(MONO):

Turn

this

knob

control

the

channel

input

level.

You

can

control

the

input

level

with

this

knob

when

you

are

using

the

unit

monaural

amplifier

through

BTL.

CHANNEL

Turn

this

knob

control

the

channel

input

level.

When

you

set

the

OPERATION

switch

the

rear

panel

MONO,

this

knob

does

not

function.

When

you

set

the

OPERATION

switch

the

rear

panel

SAME

OUT,

CHANNEL

and

CHANNEL

are

connected

(stacking

connection).

You

can

control

the

channel

input

level

with

the

ATTENUATOR

knob

the

CHANNEL

side,

and

the

channel

input

level

with

the

ATTENUATOR

knob

the

CHANNEL

side.

[6]

Level

meter

The

10-point

LED

level

meter

shows

OdB

ohms

load,

100

output.

POWER

switch

and

pilot

lamp

(green)

‘Press

this

switch

tum

the

amplifier.

The

pilot

lamp

lights

when

the

unit

turned

on.

CHANNEL

(Monaural)

)

edt

eo0000000090

paar

ere

eee

Ventilation

hole

Two

ventilation

holes

with

fan

are

located

both

sides

the

front

panel.

The

holes

are

covered

with

grill

and

cover.

When

the

grills

become

dusty,

the

fans

not

work

properly

and

the

HIGH

TEMP

indicator

starts

light

frequently.

this

case,

remove

the

ventilation

hole

cover

and

clean

the

grill.

Unplug

the

power

cord

before

cleaning

the

grill.

Caution

not

touch

the

interior

the

unit

when

you

remove

the

grill.

remove

the

ventilation

hole

cover

rill

Ventilation

hole

cover

(

CHANNEL

)

CHANNEL

Cup

ATTENUATOR

-0-

O-

HGH

TEMP

comme

1-0-

™%

5 °

aie,

.*O+

PROTECTION

PaOn

“70>

OPERATION

a-O-

neO-

CHANNEL

and

CHANNEL

have

the

same

function.

Notes

the

PROTECTION

lamp.

When

does

the

PROTECTION

lamp

light?

The

PROTECTION

lamp

lights

when

the

protection

circuit

functions

protect

the

speakers

and

the

amplifier

cutting

off

the

output

the

following

cases:

when

(direct

current)

runs

through

the

OUTPUT

’

connectors

because

malfunction

the

amplifier.

when

the

radiator

located

the

amplifier

exceeds

the

normal

temperature

(the

HIGH

TEMP

indicator

lights

continuously).

when

the

impedance

the

speaker

too

lov,

when

the

output

terminated.

these

cases,

tum

off

the

POWER

switch,

find

the

cause

and

resolve

the

problem.

Then

turn

onthe

POWER

switch

operate

the

amplifier.

put

back

the

grill

and

the

cover

Insert

the

grill

into

the

slot.

Insert

the

cover

into

slot.

§——

Put

backhe

Screws

and

tight

them.

Relor-)i(elem-lalomalislritie)

sme)

Ore

slice

Rear

Panel

[1]

INPUT

1(MONO)

connectors

and

STACKING

connector(CH1)

[2]

INPUT

connectors

and

STACKING

connector(CH2)

[1]

INPUT(MONO)

(input

hohe)

and

STACKING

connectors

Connect

outputs

mixer

preamplifier.

When

you

are

using

the

unit

stereo

amplifier,

these

input

connectors

are

for

CHANNEL

When

you

set

the

OPERATION

switch

SAME

OUT

MONO,

these

connectors

monaural

input

signals.

INPUT

connector

(XLR-3-31

type):

Accepts

balanced

input

when

you

set

the

BAL/UNBAL

switch

BAL.

When

you

set

the

switch

UNBAL,

the

connector

accepts

unbalanced

input

(Number

HOT).

INPUT

jacks

(phono

type,

unbalanced):

unbalanced

signals

when

you

set

the

BAL/UNBAL

switch

UNBAL.

Use

one

jack

for

input,

another

connect

another

amplifier

for

stacking

connection.

STACKING

connector

(XLR-3-32

type):

Feeds

out

the

signal

which

received

from

the

XLR

type

INPUT

connector.

Use

this

connector

connect

another

amplifier

for

stacking

connection.

[2]

INPUT

(input

and

STACKING

connectors

Connect

outputs

mixer

preamplifier.

When

you

are

using

the

unit

stereo

amplifier,

these

input

connectors

are

for

CHANNEL

When

you

set

the

OPERATION

switch

SAME

OUT

MONO,

these

connectors

are

disconnected.

INPUT

connector

(XLR-3-31

type):

Accepts

balanced

input

when

you

set

the

BAL/YUNBAL

switch

BAL.

When

you

set

the

switch

UNBAL,

the

connector

accepts

unbalanced

input

(Number

HOT).

INPUT

jacks

(phono

type,

unbalanced):

unbalanced

signals

when

you

set

the

BAL/UNBAL

switch

UNBAL.

Use

one

jack

for

input,

another

connect

another

amplifier

for

stacking

connection.

STACKING

connector

(XLR-3-32

type):

Feeds

out

the

signal

which

received

from

the

XLR

type

INPUT

connector.

Use

this

connector

connect

another

amplifier

for

stacking

connection.

BAL/UNBAL

INPUT

(MONO)

AINPUT

connectors

BAL

XLR

type

connector

1:GND

GND

HOT

2:HOr

COLD

GND

Phono

type

jack

XLR-3-12C

type

XLR-3-11C

type

Press

here

detach.

Fit.

Press

here

detac.

[3]

OPERATION

switch

Changes

the

operation

mode

the

unit

follows.

OPERATION

switch

Operation

mode

STEREO

[Stereo

SAME

OUT

signal.

BTL

Monaural

operation

through

BTL.

Select

the

position

this

switch

when

the

POWER

switch

turned

off.

Internal

stacking

operation

CHANNEL

has

the

same

signal

the

CHANNEL

input

[4]

OUTPUT

terminals

Connect

speakers.

Connect

the

speaker

terminal

the

red

terminal,

—

speaker

terminal

the

black

terminal.

When

the

unit

monaural

operation

through

BTL,

use

only

the

red

terminals.

Connect

the

speaker

terminal

the

red

terminal

the

OUTPUT

side,

—

speaker

terminal

the

red

terminal

the

OUTPUT

side.

[5]

[6]

[3]

OPERATION

switch

[4]

OUTPUT

terminals

15]

BAL/UNBAL

switch

'6]

FUSE

holder

Ventilation

hole

BAL/UNBAL

(balanced/unbalanced)

switch

—

When

you

set

the

switch

BAL,

the

unit

feeds

the

input

signal

from

the

source

connected

the

XLR

type

INPUT

connector.

When

you

set

the

switch

UNBAL,

the

unitfeeds

the

input

signal

from

the

source

connected

the

XLR

type

INPUT

connector*

the

phono

type

INPUT

jacks.

You

can

make

stacking

connection

with

another

amplifier

since

these

input

connectors

are

inparallel

connection.

*(n

this

case,

the

XLR

type

INPUT

connector

accepts

unbalanced

input

(Number

HOT).

FUSE

holder

There

fuse

prevent

damage

from

excessive

current.

Current

capacity

for

the

MU-A400

and

for

the

MU-A200.

When

you

replace

the

fuse,

sure

use

one

with

the

same

capacity.

~AC

(inlet)

Connect

the

power

cord

supplied.

The

tnit

operates

220-240V

AC,

50/60

Hz.

using

the

mounting

parts

both

sides,

you

can

install

the

unit

EIA

standard

19-inch

rack.

you

install

various

pieces

equipment

one

upon

another,

remove

the

unit’s

bottom

support.

remove,

pull

out

the

screws

the

supports,

using

screwdriver.

OFe}

at=red

te)

¢-1a1]

(=1>

Connection

Notes.

power

sources

avoid

damaging

the

unit

prevent

the

circuit

breaker

from

working

accidentally:

Use

extension

cord

that

can

bear

10A

current.

not

connect

many

pieces

equipment

the

same

outlet.

Using

the

Unit

Stereo

Amplifier”

OPERATION

switch

STEREO

Mixer,

preamplifier,

etc.

Impedance

than

ohms

connecting

cables

The

power

cord

should

connected

last.

First

make

sure

that

the

POWER

switch

turned

off.

The

cable

connectors

should

fully

inserted

into

the

jacks.

loose

connection

may

cause

hum

and

noise.

Unplug

the

cord

from

the

wall

outiet

grasping

the

plug.

Never

take

out

the

plug

pulling

the

cord.

Speaker

Impedance

than

ohms

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