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AM/FM

STEREO

RECEIVER

X=9soO

¢

‘

_OPERATING

INSTRUCTIONS

a

|

_|

igen!

|

fsxsso

is

designed

to

operate

from

220V

or

240V

main.

Eat

dt

dee

oaitlie

|

ee

ee

tie

2

‘aes

oaon

a

Before

turning

on

the

power,

please

confirm

the

line

voltage

setting

indicated

on

the

rear

of

your

unit

corresponds

to

the

supply

voltage

in

your

area;

if

not,

change

the

setting

as

described

in

LINE

VOLTAGE

SELECTOR

SWITCH

on

page

19.

CONTENTS

Features:

eis

n

5

5

ea

ted,

ee

a

alee

eg

OS

A

ae

2

Installation

Cautions

................0.000.

3

Connection

Diagram

...............00000.

4

Connections

Antenna

and

Ground

Connections

............

8

Front

Panel

Facilities

Prior

to

Switching

Power

On...

..........04.

13

FM

Reception

...........

2.000000

0c

eee

13

AM

Reception

............0.

0000000

e

eae

13

Playing

Records

.................0200005

14

Using

the

Microphone

.................005

14

Using

the

AUX

jacks

................0000.

14

Effective

Operation...

.........00

00000

uae

15

Tape

Deck

Operations

................0005

16

Using

PREAMP

OUT

and

POWER

AMP

IN

Jacks

..

17

Specifications

Line

Voltage

Selector

Switch

Conditions

Frequently

Mistaken

for

Malfunction

.

.

peter

a

iat

eee

th

Ws

dens

et

ihe

FEATURES

Power

Amplifier

for

a

Continuous

Power

Output

of

80

Watts

Per

Channel

and

for

Ultra-Stable

Sound

Reproduction

@

The

adoption

of

a

single-stage

differential

amplifier

with

low-noise

dua!

transistors,

pre-driver

stage

a

current

mirror

load

and

an

SEPP

circuit

provides

a

bumper

power

output

of

80

watts

+

80

watts(

continuous

power

output

of

80

watts”

per

channel,

min.,

at

8

ohms

from

20

Hertz

to

20,000

Hertz

with

no

more

than

0.05%

total

har-

monic

distortion)

which

is

extremely

stable.

These

features

also

guarantee

a

stable

operation

at

all

times

from

low

outputs

to

high

outputs.

@

The

power

amplifier

is

configured

as

a

DC

power

ampli-

fier

with

the

capacitors

removed

from

the

NFB

circuit

for

a

flat

gain

response

all

the

way

from

the

lowest

of

the

low

frequencies

up

to

the

audio

frequencies.

At

the

same

time,

the

design

is

engineered

for

low

distortion

with

the

incorporation

of

newly

developed

power

transistors.

@

The

large-sized

transformer

with

its

superb

regulation

employ

two

18,000uF

large-capacity

electrolytic

capaci-

tors

in

the

power

supply

and

permit

high

sound

quality

even

at

lowest

frequencies.

IC-Based

FM

Tuner

with

High

Selectivity,

High

S/N

and

Low

Distortion

®

The

FM

front

end

incorporates

a

1-stage

RF

circuit

that

employs

a

4-gang

tuning

capacitor

and

a

dual-gate

MOS

FET

for

high

gain

and

low

noise.

This

config-

uration

excels

in

ridding

the

sound

of

undesirable

interference

for

impressive

statistics:

1.7uV

(IHF)

sensitivity,

more

than

100dB

spurious

response

ratio

and

more

than

90dB

image

response

ratio.

@

The

FM

IF

amplifier

combines

three

dual-element

phase-

linear

ceramic

filters

with

two

IC’s

which

contain

quadrature

detectors

for

a

high

selectivity

(80dB)

and

a

low

distortion

(MONO:

0.1%

at

1kHz).

@

The

stereo

demodulator

employs

an

NFB-type

PLL

MPX

IC

with

a

automatic

pilot

canceller

which

automatically

cancels

out

the

pilot

signals

without

reducing

the

high-end

frequency.

This

means

that

the

leak

carrier

level

is

amply

suppressed

for

a

tip-top

separation

and

flat

frequency

response

in

the

reproduction

frequency

band.

AM

Tuner

Includes

Newly

Developed

!C

The

tuned

AM

RF

amplifier

circuit

incorporates

a

newly

developed

high-sensitivity,

low-distortion

IC

and

2-gang

variable

capacitor.

These

contribute

to

enhanced

imaging

and

RF

interference

rejection

capabilities.

Since

the

optimum

AGC

voltage

is

supplied

to

each

section,

2

stable

reception

can

be

obtained

with

low

spurious

inter-

ference

and

distortion

even

in

high

field

strength

areas.

Precise

Record

Equalization

e@

A

balanced

power

supply

is

used

in

the

equalizer

ampli-

fier

to

obtain

a

maximum

allowable

input

of

200mVrms

(1kHz).

Low

distortion

record

playback

can

thus

be

enjoyed

even

with

high

output

phono

cartridges

and

music

sources

containing

large

peak

signals.

@

The

equalizer

elements

which

are

designed

to

produce

the

RIAA

characteristics

use

high-precision

parts

to

keep

the

equalizer

deviation

between

20Hz

—

20kHz

down

to

+0.2dB

for

faithful

sound

reproduction

from

records.

Other

Features

TURNOVER

switches:

These

switches

yield

variations

in

the

curves

of

the

tone

controls

when

they

are

operated

in

conjunction

with

the

other

bass

and

treble

tone

controls.

One

is

used

for

the

bass

and

the

other

for

the

treble,

thereby

allowing

plenty

of

variation

in

tone

control

adjust-

ment.

Highly

reliable

protection

circuitry:

In

order

to

protect

the

speakers

and

the

power

transistors,

this

receiver

features

a

newly

developed

protection

IC

as

well

as

a

special

muting

circuit

that

cuts

out

the

noise

produced

by

the

on/off

operation

of

the

power

switch.

Needless

to

say,

these

are

very

dependable

and

stable

protection

circuits.

In

addition,

there

is

an

inrush

current

suppressor

circuit

which

sup-

presses

surges

of

current

when

the

power

is

switched

on.

FM

25us

switch:

The

receiver’s

front

panel

is

equipped

with

a

de-emphasis

selector

switch

which

is

useful

when

the

receiver

is

tuned

into

an

FM

Dolby

station.

This

facilitates

operation

when

the

receiver

is

set

up

for

the

reception

of

an

FM

Dolby

broadcast.

TAPE

DUPLICATE

switch:

This

switch

allows

you

to

use

two

tape

decks

to

edit

or

duplicate

material

recorded

on

one

tape

to

another.

Duplication

from

an

open-reel

deck

to

a

cassette

deck,

for

example,

can

be

performed

in

a

one-touch

operation.

Power

meters:

Each

channel

has

its

own

power

meter

(0.01W

—

160W

display

range)

with

a

logarithmic

com-

pression

scale.

These

meters

feature

a

fast

response

speed,

and

they

enable

you

to

read

out

the

power

values

at

an

8-ohm

impedance

across

a

power

band

stretching

from

0.01W

up

to

the

maximum

output

of

the

receiver.

6kHz

(high)

and

15Hz

(low)

filter

switches:

Featured

are

a

filter

for

GdB/octave

attenuation

at

frequencies

below

15Hz

in

order

to

eliminate

ultra-low-range

noise

generated

by

warps

in

the

records,

and

also

a

6kHz

(6dB/oct

attenu-

ation)

filter

that

eliminates

high-range

noise

such

as

that

produced

by

scratches

on

the

records

and

hiss.

*Measured

pursuant

to

Federal

Trade

Commission's

Trade

Regulation

rule

on

Power

Output

Claims

for

Amplifiers.

ee

FONE

KT

--

FOR

USE

IN

UNITED

KINGDOM

OR

AUSTRALIA

CAUTION

240V

nected

to

the

terminal

which

is

marked

with

the

|

Mains

supply

voltage

is

factory

adjusted

at

240

letter

L

or

coloured

brown

or

red.

volts.

The

AC

Outlets

of

this

apparatus

have been

re-

moved

from

this

apparatus

in

order

to

comply

WARNING

with

U.K.

Safety

Regulation.

Ensure

that

your

THIS

APPARATUS

MUST

BE

EARTHED.

equipment

is

connected

correctly—if

you

are

in

IMPORTANT

doubt,

consult

a

qualified

electrician.

The

wires

in

this

mains

lead

are

coloured

in

ac-

Do

not

unscrew

the

bottom

plate

and

cabinet.

:

;

No

user

serviceable

parts

inside.

d

th

the

foll

de:

; :

ree

ht

Nae.

ia

sa

Always

disconnect

all

the

equipment

from

the

;

mains

supply

when

disconnecting

the

signal

Blue:

Neutral

leads.

The

Power

cord

should

be

connected

last,

make

sure

that

the

Power

switch

is

OFF.

Be

sure

the

appliance

connector

is

fully

inserted

into

the

AC

inlet.

Unplug

the

set

from

the

wall

socket

when

it is

not

to

be

used

for

an

extended

period

of

time.

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

FOR

YOUR

SAFETY

which

is

marked

by

the

letter

E

or

by

the

safety

1.

Insert

this

plug

only

into

effectively

earthed

earth

symbol

~

or

coloured

green

or

green-and-

three-pin

plug-socket

outlet.

yellow.

2.If

any

doubt

exists

regarding

the

earthing,

The

wire

which

is

coloured

blue

must

be

con-

consult

a

qualified

electrician.

nected

to

the

terminal

which

is

marked

with

the

3.

Extension

cords,

if

used,

must

be

three-core

letter

N

or

coloured

blue

or

black.

correctly

wired.

The

wire

which

is

coloured

brown

must

be

con-

INSTALLATION

CAUTIONS

To

ensure

the

best

sound

quality

and

trouble-free

operation,

avoid

setting

up

the

SX-980

in

any

of

the

locations

described

below.

Location

liable

to

downgrade

performance

Resulting

trouble

and

result

in

breakdowns

9

1.

Locations

exposed

to

direct

sunlight,

or

near

heaters.

1.

External

heat

causes

the

performance

of

the

circuit

parts

to

deteriorate,

and

operation

becomes

unstable.

2.

Locations

with

poor

ventilation,

or

with

high

humidity

or

2.

Cause

of

faulty

contact

in

input/output

terminals,

and

rust.

moisture

contents,

or

dusty

locations.

High

humidity

and

a

high

moisture

content

cause

deterioration

in

insulation.

There

is

also

the

danger

of

current

leakage

and

heat

generation

in

the

circuit

parts.

Dust

or

grease

in

the

rotat-

ing

parts

causes

the

parts

to

deteriorate.

3.

Locations

susceptible

to

vibration.

3.

These

locations

affect

the

precision

parts

adversely.

4.

Locations

where

an

AM

radio

or

TV

set

is

being

used

simulta-

4.

Mutual

interference

can

occur

from

the

oscillator

circuits

used

neously.

in

these

products.

Don’t

put

anything

on

the

top

of

the

receiver

because

high

power

receiver

will

produce

a

lot

of

heat.

Also

leave

sufficient

around

the

receiver

for

adequate

ventilation.

SL

mae

ee

Na

Ta

a

a

|

3

CONNECTION

DIAGRAM

FM

outdoor

antenna

T-type

FM

antenna

AM

outdoor

antenna

300

ohm

feeder

|

|

=

ee

be

ee

75

ohm

connector

plug

(

Ao)

Turntable

1

Ground

|

Ducne

Se

iane

wa

hee

(PHONO

1)

©)

F

5

r

©)

|§

CHOHCHES

4,

ese

elles)

°

©

KO)

|

RF

FAGHGHO

Ground

I

Output

|

(PHONO

2)

'

Cartridge

tape

Xx

Tape

deck

1

(TAPE

1)

Pe

Pe

ee

PRE/POWER

AMP

LINE

VOLTAGE

SELECTOR

SWITCH

The

bridge

connecting

plugs

between

PREAMP

OUT

Refer

to

page

19.

and

POWER

AMP

IN

jacks

should

always

be

left

in

Position

in

normal

use.

If

they

are

disconnected

or

removed

no

sound

will

come

from

the

speakers.

Always

be

sure

to

switch

off

the

power

supply

before

AC

INLET

attempting

to

remove

them.

Refer

to

the

section

Plug

the

AC

power

cord

into

this

socket.

“USING

THE

PREAMP

OUT

AND

POWER

AMP

IN

JACKS”

on

page

17.

AC

INLET

é

lO!

MMU

ISN

a@p)p

68

ry

Recording/Play

back

cord

= =

“DiNcord)

~~

~~~

™~

Left

Right

Speaker

systems

Output

(SPEAKERS

A)

Tape

deck

(TAPE

2)

Left

Right

Speaker

systems

(SPEAKERS

B)

3

|

CONNECTIONS

PRECAUTIONS

e

Set

the

POWER

switch

to

ON

only

when

you

have

completed

all

the

connections

of

the

stereo

system.

Always

set

this

switch

to

its

bottom

position

(OFF)

if

you

want

to

change

the

con-

nections.

e

All

the

receiver’s

jacks

are

aligned

for

easy

connection

in

two

rows:

the

top

row

for

L

(left

channel)

and

the

bottom

row

for

R

(right

chan-

nel).

Always

connect

L

to

L

and

R

to

R

with

the

audio

component

output

and

input

jacks.

@

Make

sure

that

the

connections

are

secure.

Improper

connections

can

generate

noise

and

cause

the

sound

to

be

cut

off.

SPEAKER

SYSTEMS

The

receiver

is

provided

with

two

sets

of

SPEAK-

ERS

output

terminals.

Use

the

A

set

when

connecting

only

one

set

of

speakers.

Viewed

from

the

front,

the

R

(right

channel)

SPEAKERS

terminals

are

on

the

right

and

the

L

(left

channel)

SPEAKERS

terminals

are

on

the

left.

Connect

the

left

channel

speaker

to

the

L

terminals

and

the

right

channel

speaker

to

the

R

terminals.

The

red

L

and

R

SPEAKERS

terminals

have

a

plus

polarity

and

the

black

terminals

have

a

minus

polarity

just

like

the

speaker

systems

themselves.

When

connecting,

always

connect

minus

to

minus

and

plus

to

plus

(Fig.

1).

RIGHT

SPEAKER

LEFT

SPEAKER

SYSTEM

SYSTEM

.

Fig.

1

NOTE:

If

you

want

to

use

two

sets

of

speaker

systems,

make

sure

that

the

impedance

of

each

system

is

8

ohms

or

more.

If

the

impedance

is

less

than

8

ohms,

the

protective

circuitry

will

be

actuated

when

the

volume

is

turned

up

and

you

will

not

be

able

to

enjoy

proper

stereo

perform-

ance,

Connecting

the

speaker

lead

wires

to

the

SPEAKERS

terminals

(Fig.

2)

1.

Strip

about

10mm

of

the

insulation

from

the

end

of

the

speaker

lead

wires.

If

the

conductor

is

stranded,

twist

the

strands

together

so

that

they

do

not

come

into

contact

with

other

terminals.

2.

Depress

the

terminal

buttons

and

insert

the

lead

wires

into

the

terminal

holes.

8.

Release

the

buttons

and

check

that

the

lead

wires

are

secure.

SPEAKERS

terminals

Speaker

system

Fig.

2

NOTES:

1.

The

high

output

power

of

this

receiver

requires

that

the

speaker

lead

wires

have

an

ample

current

carrying

capacity.

Use

wires

with

a

high

capacity

and

connect

them

securely.

If

you

use

low

capacity

wires

and

do

not

connect

them

properly,

the

reproduced

sound

will

be

adversely

affected

and

heat

generation

or

short

circuits

may

be

caused.

2.

This

receiver

delivers

a

high

output

power

and

so

make

sure

that

you

use

speakers

with

a

high

allowable

input.

TURNTABLE

CONNECTIONS

Connect

the

output

cords

of

a

turntable

using

a

moving

magnet

(MM)

cartridge

to

the

PHONO

1

input

jacks.

Connect

the

ground

lead

of

the

turn-

table

to

the

GND

terminal

on

the

receiver

(Fig.

3).

NOTES:

e

In

addition

to

turntables

using

MM

cartridges,

there are

others

that

employ

induced

magnet

(IM),

moving

iron

(MI)

and

high-output

moving

coil

(MC)

cartridges.

If

you

intend

to

use

a

turntable

with

a

low-output

MC

cartridge,

always

provide

a

special

MC

cartridge

boost-

ing

transformer

or

head

amplifier.

e

Connect

your

second

turntable

to

the

PHONO

2

input

Jacks.

e

If

your

turntable

is

fitted

with

two

tonearms,

the

output

cords

for

each

of

the

tonearms

should

be

connected

to

the

PHONO

I

and

PHONO

2

input

jacks.

Fig.

3

TAPE

DECK

CONNECTIONS

The

receiver

is

provided

with

two

sets

of

recording

(TAPE

REC)

output

jacks

and

two

sets

of

play-

back

(TAPE

PLAY)

input

jacks.

Connect

each

of

the

jacks

in

the

following

way

using

the

connecting

cords

which

come

with

the

tape

deck.

The

upper

row

of

jacks

is

for

the

left

channel

(L)

and

the

lower

row

for

the

right

channel

(R)

(Fig.

4).

Connections

for

recording

Connect

the

recording

input

jacks

(LINE

INPUT)

on

the

tape

deck

to

the

TAPE

1

REC

jacks

on

the

receiver.

Connections

for

playback

Connect

the

playback

output

jacks

(LINE

OUT-

PUT)

on

the

tape

deck

to

the

TAPE

1

PLAY

jacks

on

the

receiver.

NOTE:

Connect

your

second

tape

deck

to

the

TAPE

2

jacks

(REC,

PLAY).

PIONEER

SX-980

Tape

deck

1

Recording

connections

Connections

using

the

recording/playback

connector

(DIN

cord)

If

your

tape

deck

is

equipped

with

a

recording/

playback

connector

(DIN-type),

use

the

optional

recording/playback

cord

to

connect

this

connector

with

the

TAPE

2

REC/PLAY

jack

on

the

receiver.

This

means

that

the

deck

and

receiver

are

now

set

up

for

both

recording

and

playback

(Fig.

5).

In

such

cases,

do

not

connect

pin

cords

(ordinary

pin

plug

cords)

to

the

TAPE

2

REC

and

PLAY

jacks.

REC/PLAY

jack

REC/PLAY

cord

TAPE

2:

REC

PLAY

|

®

Tape

deck

2

ar

Fig,

5

ANTENNA

AND

GROUND

CONNECTIONS

FM

ANTENNA

CONNECTIONS

The

signals

transmitted

by

an

FM

broadcasting

station

inevitably

become

weak

when

received

behind

mountains,

between

buildings

and

inside

reinforced

concrete

structures.

In

weak-signal

areas,

signals

which

are

reflected

off

mountains

and

other

obstacles

in

their

path

may

be

picked

up

by

the

antenna,

which

causes

a

multipath

effect.

This

adversely

affects

the

sound

received.

This

is

why

it

is

necessary

to

choose

an

antenna

and

an

installation

location

which

are

best

suited

to

cope

with

the

ambient

conditions

and

the

strength

of

the

signals.

Special

FM

antennas

It

is

recommended

that

you

use

a

special

FM

antenna

in

order

to

obtain

input

signals

which

will

allow

your

receiver

to

display

its

capabilities

to

the

full.

@

When

installing

your

antenna,

refer

to

the

instructions

in

‘FM

RECEPTION’

on

page

13

and

determine

in

which

direction

the

antenna

should

point

for

the

best

reception,

all

the

while

listening

to

a

broadcast

to

check

the

reception.

Mount

the

antenna

securely.

@

In

accordance

with

the

application

of

the

antenna,

use

a

75-ohm

coaxial

cable

or

a

300-

ohm

feeder

to

connect

the

antenna

to

the

receiver.

75-ohm

coaxial

cable:

As

shown

in

Fig.

6,

connect

the

cable

to

the

752

UNBAL

terminal

of

the

receiver.

This

cable

is

used

in

locations

near

roads

with

a

great

deal

of

traffic,

and

near

overhead

high-tension

power

lines

which

generate

a

lot

of

noise.

It

is

also

used

when

the

antenna

and

the

receiver

are

far

apart.

300-ohm

feeder:

As

shown

in

Fig.7,

connect

the

feeder

to

the

83002

BAL

terminals.

Use

it

when

there

is

little

external

noise

and

when

the

antenna

and

the

receiver

are

not

far

apart.

NOTE:

Consult

your

nearest

PIONEER

dealer

concerning

the

special

FM

antenna

and

the

75-ohm

coaxial

cable.

T-type

antenna

When

the

broadcasting

station

is

located

nearby

and

when

the

FM

signals

are

strong

in

wooden

frame

buildings

and

others,

you

can

use

the

accessory

T-type

antenna

(Fig.7).

As

shown

in

Fig.

7

connect

the

end

of

the

T-type

antenna

to

the

300-ohm

terminal.

Spread

the

two

arms

of

the

antenna

horizontally

and

while

listen-

ing

to

an

FM

station,

rotate

the

antenna

through

180

degrees

and

position

it

for

the

best

reception.

Tape

the

antenna

to

a

wall

or

ceiling.

FM

outdoor

antenna

$X-980

Antenna

terminals

FM

outdoor

antenna

T-type

antenna

300-ohm

feeder

AM

ANTENNA

CONNECTION

Move

the

AM

bar

antenna

on

the

rear

panel

of

the

receiver

and

find

the

best

reception

position,

all

the

while

following

the

instructions

outlined

on

page

13

under

‘AM

RECEPTION.’

Fig.

8

NOTES:

e

The

AM

bar

antenna

on

the

receiver’s

rear

panel

displays

directivity

and

so

some

stations

may

be

poorly

received.

In

such

cases,

change

the

installation

direc-

tion

of

the

receiver.

e

If

the

receiver

is

installed

right

up

against

a

wall

in

a

reinforced

concrete

building,

the

reception

may

be

adversely

affected.

Therefore,

it is

a

good

idea

to

erect

an

indoor

AM

antenna.

e

If

you

still

cannot

obtain

good

reception

even

by

moving

the

AM

bar

antenna,

erect

an

indoor

AM

antenna

with

a

vinyl

insulated

wire

(about

5-6

meters

long).

As

shown

in

Fig.9,

connect

the

lead

wire

to

the

AM

antenna

terminal,

and

tape

it

to

the

wall

or

ceiling.

e

If

you

live

in

an

area

where

the

reception

is

poor

even

if

you

erect

an

indoor

AM

antenna,

use

a

tree

to

erect

an

outdoor

AM

antenna

with

a

vinyl

insulated

wire

(Fig.

9).

AM

outdoor

antenna

Indoor

antenna

(vinyl

insulated

wire)

SX-980

Antenna

terminals

Fig.

9

PIONEER

GROUNDING

As

shown

in

Figs.6

&

7,

connect

a

ground

wire

to

the

GND

terminal

on

the

receiver

for

maximum

safety

and

noise

reduction.

Never

make

this

con-

nection

near

gas

pipes

and

other

potentially

dangerous

locations.

FM

ANTENNA

LOCATION

It

is

important

to

choose

with

care

the

locations

where

you

will

install

your

FM

antenna

for

the

stable

reception

of

the

signals

from

FM

broadcast-

ing

stations

and

for

superior

sound

reproduction.

Bear

in

mind

the

following

points

and

determine

the

optimum

location

(height

and

direction).

1.

The

ideal

place

for

the

antenna

is

somewhere

where

it

can

pick

up

the

signals

transmitted

from

the

FM

broadcasting

station

antenna

directly.

Locations

where

these

signals

cannot

be

picked

up

directly

because

of

obstacles

in

their

path

or

because

the

receiver’s

antenna

is

located

in

a

low

building

surounded

by

higher

buildings,

are

affected

by

the

multipath

effect

caused

when

signals

are

reflected

off

these

obstacles

or

buildings.

In

such

places,

the

sound

will

be

distorted

and

the

separation

between

the

left

and

right

channels

will

deteriorate.

Choose

a

height

and

a

direction

for

the

antenna

where

the

multipath

effect

will

be

minimal.

2.

Erect

your

antenna

as

far

away

as

possible

from

roads

so

that

there

is

no

interference

from

auto-

mobile

ignition

noise,

and

also

from

high-tension

power

lines

and

neon

signs.

38.

Keep

your

antenna

at

least

two

meters

away

from

sheet-metal

roofs,

concrete

buildings

and

TV

antennas.

Station

direction

More

than

4

meters

(15

ft.)

above

ground

Feeder

or

cable

should

not

directly

contact

other

structures.

Keep

cabling

as

short

as

possible

Select

location

away

from

traffic

noise

and

with

clear

line

of

sight

-

|

FRONT

PANEL

FACILITIES

POWER

SWITCH

POWER

METERS

Flip

this

switch

to

the

ON

position

to

supply

power

to

the

These

power

meters

allow

you

to

read

out

the

rated

stereo

receiver.

There

will

be

a

short

delay

when

it

is

set

power

level

when

speakers

with

a

nominal

impedance

of

to

ON,

because

the

muting

circuit

has

been

actuated

to

8

ohms

are

connected

to

the

receiver’s

speaker

terminals.

suppress

the

unpleasant

noise

that

is

sometimes

generated

NOTE:

when

the

power

is

switched

on

and

off.

These

values

are

related

to

the

impedance

of

the

speakers

and

they

vary

according

to

the

frequency.

In

order

to

find

out

the

exact

output

level,

connect

an

PHONES

JACK

8-ohm

dummy

load

instead

of

the

speakers.

Plug

the

headphones

into

this

jack

when

you

want

to

listen

through

your

stereo

headphones.

Release

both

SPEAKERS

buttons

if

you

want

to

listen

to

the

sound

through

your

headphones

only.

(This

means

that

both

buttons

will

be

released).

FUNCTION

INDICATOR

MEMORY

MARKERS

These

are

very

convenient

for

frequent

tuning

in

to

the

same

broadcasting

station.

TREBLE

wee

i

TRROven

TURNOVER

Lich

F

OLUME,

2

JPL

5

L

BOOHz

é

4 2

2

Y

pahte

:

L

3

3

STERE:

la

a

a

ON

S

,,

ON ON

ON

MONO

ON

LEFT

RuGHT

oo

¢

|

|

SPEAKERS

BUTTONS:

Press

the

button

corresponding

to

the

speakers

connected

to

the

SPEAKERS

terminals

(A

or

B)

on

the

rear

panel.

You

can

press

both

of

these

buttons

to

listen

to

sound

from

two

pairs

of

speaker

systems

at

the

same

time.

MUTING

SWITCH—————----

Set

this

switch

to

the

—20dB

position

to

attenuate

the

audio

output

indicated

by

the

VOLUME

control

by

20dB.

There

is

no

need

to

adjust

the

VOLUME

control

if

you

use

this

switch

when

turning

down

the

audio

output

temporarily

and

when

changing

over

records

or

tapes.

For

further

details,

refer

to

page

15.

BALANCE

CONTROL

Use

this

control

to

balance

the

volume

of

the

left

and

right

channels.

First,

however,

set

the

MODE

switch

to

~VOLUME

CONTROL

MONO,

and

adjust

so

that

the

sound

appears

to

come

Use

this

control

to

adjust

the

output

level

to

the

speakers

from

somewhere

exactly

between

the

two

speakers.

If

the

and

headphones.

Turn

it

clockwise

to

increase

the

output

sound

appears

to

be

jouder

on

the

right,

it

means

that

the

ievel.

No

sound

will

be

heard

if

you

set

it

to

o.

The

scale

volume

of

the

right

channel

is

higher.

Turn

the

BALANCE

is

graduated

in

dB

which

indicate

the

attenuation

when

control

to

the

left

and

adjust.

Conversely,

if

the

sound

the

maximum

output

level

is

OdB.

appears

to

be

louder

on

the

left,

it

means

that

the

volume

of

the

left

channel

is

higher.

Therefore,

turn

the

BALANCE

control

to

the

right

and

adjust.

After

adjust-

ing,

return

the

MODE

switch

to

STEREO.

10