Sony SEQ-431 User manual

SONTY.

Graphic

Equalizer

3-756-657-21(1)

SEQ-431

Operating

Instructions

Before

operating

the

unit,

please

read

this

manual

thoroughly

and

retain

for

future

reference.

OWNER'S

RECORD

The

model

and

serial

numbers

are

located

the

rear.

Record

the

serial

number

the

space

provided

below.

Refer

them

whenever

you

call

upon

your

Sony

dealer

regarding

this

product.

Model

No.

SEQ-431

prevent

fire

shock

hazard,

not

expose

the

unit

rain

moisture.

Serial

No.

RISK

ELECTRIC

SHOCK

NOT

OPEN

CAUTION:

REDUCE

THE

RISK

ELECTRIC

SHOCK,

NOT

REMOVE

COVER

(OR

BACK).

USER-SERVICEABLE

PARTS

INSIDE.

REFER

SERVICING

QUALIFIED

SERVICE

PERSONNEL.

This

symbol

intended

alert

the

user

the

presence

uninsulated

“dangerous

voltage”

within

the

prod-

uct’s

enclosure

that

may

suffi-

cient

magnitude

constitute

risk

electric

shock

persons.

This

symbol

intended

alert

the

user

the

presence

important

operating

and

maintenance

(servicing)

instructions

the

literature

accompa-

nying

the

appliance.

The

graphical

symbols

are

the

rear

enclosure.

1993

Sony

Corporation

ayers

Lelie)

ats

safety

Operate

the

unit

only

120

AC,

Hz.

The

unit

not

disconnected

from

the

power

source

long

connected

the

wall

outlet,

even

the

unit

itself

has

been

turned

off.

Should

any

solid

object

liquid

fall

into

the

unit,

unplug

and

have

checked

qualified

personnel

before

operating

any

further.

Unplug

the

unit

from

the

wall

outlet

not

used

for

extended

period

time.

disconnect

the

cord,

pull

out

grasping

the

plug.

Never

pull

the

cord

itself.

installation

not

install

the

unit

location

near

heat

sources

such

radiators

air

ducts,

place

subject

direct

sunlight,

excessive

dust,

mechanical

vibration

shock.

Good

air

circulation

essential

prevent

internal

heat

buildup

the

unit.

Place

the

unit

location

with

adequate

air

circulation.

not

place

the

unit

soft

surface.

cleaning

the

cabinet

Clean

the

cabinet,

panel

and

controls

with

soft

cloth

lightly

moistened

with

mild

detergent

solution.

not

use

any

type

abrasive

pad,

scouring

powder

solvent

such

alcohol

benzine.

repacking

not

throw

away

the

carton

and

the

packing

material.

makes

ideal

container

transport

the

unit

in.

For

the

customers

the

U.S.A.

For

detailed

precautions,

see

the

leaflet

“IMPORTANT

SAFEGUARD”.

you

have

any

question

problem

concerning

your

unit,

please

consult

your

nearest

Sony

dealer.

For

the

customers

Canada

CAUTION

PREVENT

ELECTRIC

SHOCK,

NOT

USE

THIS

POLARIZED

PLUG

WITH

EXTENSION

CORD,

RECEPTACLE

OTHER

OUTLET

UNLESS

THE

BLADES

CAN

FULLY

INSERTED

PREVENT

BLADE

EXPOSURE.

Connections

Connecting

the

ADAPTOR

Jacks

Amplifier

Connect

the

power

cord

last.

Make

sure

power

off.

The

cable

connectors

should

fully

inserted

into

the

jacks.

loose

connection

may

cause

hum

and

noise.

Cord

plugs

and

jacks

are

color

coded.

Red

plugs

and

jacks

are

for

right

channel

(R)

and

white

ones

for

the

left

channel

(L).

Amplifier

OUTLET

Use

the

outlet

power

audio

component

whose

power

consumption

less

than

the

wattage

indicated

the

OUTLET.

The

outlet

not

controlled

the

POWER

switch.

Even

when

the

apparatus

switched

off,

"UNSWITCHED"

socket

outlet

remains

live

unless

mains

plug

pulled

out

from

the

wall

outlet.

SEQ-431

outlet

the

amplifier

wall

outlet

CAUTI

not

connect

any

electrical

home

appliances

such

electric

iron,

fan,

other

high

wattage

equipment

the

outlet.

Cassette

deck

LINE

OUT

aap

outlet

the

amplifier

wall

outlet

Cassette

deck

LINE

Select

the

desired

source

with

the

amplifier

and

play

the

program

source,

play

back

tape

the

cassette

deck.

Press

the

volume

level

EQUALIZATION

button

EQUALIZATION

indicator

lights

up.

Select

the

input

signal

equalized.

For

the

program

source

from

the

TAPE:

-O

amplifier:

Press

the

TAPE

button

that

the

TAPE

indicator

goes

off.

Note

When

connecting

the

TAPE

jacks

the

amplifier,

set

the

tape

monitor

switch

ON.

La3f

TAPE

—O

For

the

sound

from

the

cassette

(.)

deck:

Press

the

TAPE

button

that

the

TAPE

inidcator

lights

up.

eed

+10

-10

—

-10

150Hz

400

TkHz

24kHz

kHz

KHZ

listen

the

sound

without

the

equalize:

Press

the

EQUALIZATION

button

that

the

goes

off.

The

input

signal

directly

output

LINE

OUT

and

TAPE

RECORDER

REC

OUT

Select

and

play

the

desired

source.

Press

the

TAPE

button

that

the

TAPE

indicator

goes

off.

Press

the

EQUALIZATION

button

that

the

EQUALIZATION

indicator

lights

up.

Nie-

EQUALIZATION

Set

the

cassette

deck

recording

mode.

record

sound

without

the

equalizer

effect

Press

the

EQUALIZATION

button

that

the

indicator

goes

off.

150Hz

400

kHz

24kHZ

kHz

Frequency

Coverage

=F-(olam

Ur-1jr4-m

Orelalige)|

Adjustable

frequency

bands

and

the

effect

level

adjustment

Hz:

Lowering

the

level

will

cut

the

ventilation

noise

music

hall,

hum

electronic

instruments,

boomy

bass,

etc.

Raising

the

level

will

reinforce

the

heavy

bass

part

pipe

organ

add

depth

the

bass

sound.

150

Hz:

Boosting

cutting

the

normal

bass.

400

Hz:!ncreasing

decreasing

the

power,

spaciousness

and

warmth

the

sound.

kHz:

Providing

presence

for

vocals,

and

moving

the

sound

forward

into

the

background.

2.4

kHz:

Lowering

the

level

will

reduce

stridency,

and

raising

will

make

the

base

sound

brighter.

kHz:

Increasing

decreasing

the

brightness

the

sound;

for

example,

raising

the

level

will

make

the

violin

sound

silky

smooth.

kHz:

Changing

the

general

atmosphere

rather

than

the

sound

itself.

Raising

the

level

will

highlight

the

delicate

quality

instrumental

sound,

and

lowering

will

reduce

high-frequency

noise

such

the

resonant

peak

cartridge

tape

hiss,

etc.

Checking

the

equalization

results

Press

the

EQUALIZATION

button

again

off

(released

position).

The

equalizer

circuit

bypassed,

and

you

can

hear

the

sound

without

equalization.

switching

the

EQUALIZATION

button

and

off,

compare

the

results.

The

spectrum

analyzer

can

used

visually

confirm

the

need

for

and

effect

equalizer

adjustment.

=Yol

Cer-

(e]

at)

Inputs

LINE

IN:

Phono

jacks,

245

(-10

dBs),

kilohms

TAPE

IN:

Phono

jacks,

245

(-10

dBs),

kilohms

Outputs

LINE

OUT:

Phono

jacks,

245

(-10

dBs),

Load

impedance:

than

kilohms

TAPE

REC

OUT:

Phono

jacks,

245

(-10

dBs),

Load

impedance:

than

kilohms

Graphic

equalizer

Boost/cut

range:

+10

Center

frequencies:

Hz,

150

Hz,

400

Hz,

kHz,

2.4

KHz,

KHz

Frequency

response

(with

EQUALIZATION

on)

LINE

IN:

kHz

*°,dB

Harmonic

distortion

LINE

IN:

Less

than

0.008%

(at

kHz,

output)

Signal-to-noise

ratio

(with

EQUALIZATION

on)

LINE

IN:

Better

than

100

network,

output)

Power

requirements

120

AC,

Power

consumption

unswitched,

120

W/1

max.

Approx.

430

265

(w/h/d)

(17x

3'/,

‘/,

inches)

Mass

Approx.

2.5

oz)

Accessory

supplied

Audio

connecting

cords

(2)

outlet

Dimensions

Design

and

specifications

are

subject

change

without

notice.

Troubleshooting

Before

going

through

the

check

list

below,

first

refer

back

the

connection

and

operating

procedures.

Should

any

problem

persist

after

you

have

made

these

checks,

consult

your

nearest

Sony

dealer.

Trouble

audio

even

when

the

POWER

switch

turned

on.

Remedy

Check

the

power

cord

disconnected.

Check

the

connecting

cord

disconnected.

Check

the

TAPE

button

setting.

equalization.

Check

the

EQUALIZATION

button

set

off

(the

indicator

goes

off).

Check

the

connections.

The

program

source

connected

the

amplifier

cannot

recorded.

Sony

Corporation

Printed

Japan

Check

the

TAPE

button

set

(the

indicator

lights

up).

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