Kenwood Kt-57 User manual

AM/FM

STEREO

TUNER

KT-57

INSTRUCTION

MANUAL

KENWOOD

Introduction

Your

choice

of

this

product

indicates

that

you

are

a

devotee

to

excellence

in

sound

reproduction.

We

appreciate

your

patronage

and

take

pride

in

the

long

tradition

of

quality

components.

So

that

you

can

get

the

most

out

of

your

unit,

we

suggest

that

you

take

the

time

to

read

through

this

manual

before

you

hook

up

and

operate

your

system.

This

will

acquaint

you

with

operating

features,

and

system-connection

con-

siderations,

so

that

your

listening

pleasure

will

be

enhanced

right

from

the

start.

You

will

notice

that

in

all

aspects

of

planning,

engineering,

styling,

operating

convenience

and

adaptability,

we

have

sought

to

anticipate

your

needs

and

desires.

Keep

this

manual

handy

for

future

reference.

For

your

records

Record

the

serial

number,

found

on

the

back

of

the

unit,

in

the

spaces

designated

on

the

warranty

card,

and

in

the

space

provided

below.

Refer

to

the

model

and

serial

numbers

whenever

you

call

upon

your

dealer

for

informa-

tion

or

service

on

this

product.

Model

KT-57

Sertal

Number

Unpacking

Unpack

the

unit

carefully

and

make

sure

that

all

acces-

sories

and

cables

are

put

aside

so

they

will

not

be

lost.

Examine

the

unit

for

any

possibility

of

shipping

damage.

If

your

unit

is

damaged,

or

fails

to

operate,

notify

your

dealer

immediately.

If

your

unit

was

shipped

to

you

directly,

notify

the

shipping

company

without

delay.

Only

the

consignee

(the

person

or

company

receiving

the

unit)

can

file

a

claim

against

the

carrier

for

shipping

damage.

We

recommend

that

you

retain

the

original

carton

and

packing

materials

for

use

should

you

transport

or

ship

the

unit

in

the

future.

Contents

A\

Before

applying

power

A\

Safety

precautions

A\

Important

safeguards

©PRINTED

IN

JAPAN

B50-8679-00(K,P,U,M,UE,X}(G)

88/12

111098

Note

to

CATV

system

installer:

This

reminder

is

provided

to

call

the

CATV

system

install-

er’s

attention

to

Article

820

—

22

of

the

NEC

that

provides

guidelines

for

proper

grounding

and,

in

particular,

specifies

that

the

cable

ground

shall

be

connected

to

the

grounding

system

of

the

building,

as

close

to

the

point

of

cable

entry

as

practical.

Accessories

RCA:

Pins

luG

COPD

sictiadsucecusstattairesverttiaseresictatadoonnnGen

1

AM

NOOR

AR

TER

Na

oii

siete

cece

arctica

een acl

ace

taes

1

AN)

JOOD

-EMtGnna.

Stang

=iccscei

bes

ceccce

lictetiohiecuereceniinitestineen

1

FIV)

SHADEO

-ANtOONS

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acess

ecescetss

carrera

cneneeniiiecsnadeimeeas

1

Caution:

Read

the

following

pages

marked

in

A\

carefully

to

keep

your

safety.

Controls

and

indicators

Operating

instructions

In

case

of

difficulty

System

connections

Specifications

Before

applying

power

Important!

U.S.A.,

Canada

and

Australia

Units

shipped

to

the

U.S.A.

Canada

are

designed

for

operation

on

120

V

AC

only.

Units

shipped

to

Australia

are

designed

for

operation

on

240

V

AC

only.

These

units

are

not

equipped

with

an

AC

voltage

selector

switch

and

the

discussion

of

such

a

switch

that

follows,

should

be

disregarded.

All

other

countries

Units

shipped

to

countries

other

than

the

above

countries

are

equipped

with

an

AC

voltage

selector

switch

on

the

rear

panel.

Refer

to

the

following

paragraph

for

the

proper

setting

of

this

switch.

AC

voltage

selection

These

units

operates

on

110-120

volts

or

220-240

volts

AC.

The

AC

voltage

selector

switch

of

the

amplifier

is

set

to

the

voltage

that

prevails

in

the

area

to

which

the

units

was

shipped.

Before

connecting

the

power

cord

to

your

AC

outlet,

make

sure

that

the

setting

position

of

this

switch

matches

your

line

voltage.

If

not.

it

must

be

set

to

your

voltage

in

accordance

with

the

following

direction.

Note:

——

$$

Our

warranty

does

not

cover

damage

caused

by

excessive

line

voltage

due

to

improper

setting

of

the

AC

voltage

selector

switch.

AC110-120V%<4

RAC220-240V™

AC110-120V°V4

RAC220-240V~\

Switch

lever

ee

{|i

This

shows

switch

lever

is

locked

in

220-240VV

position.

This

shows

switch

lever

is

locked

in

1

10-120V~

position.

Move

switch

lever

to

match

your

line

voltage

with

a

small

screw

driver

or

other

pointed

tool.

AC

voltage

selector

switch

CAUTION

RISK

OF

ELECTRIC

SHOCK

DO

NOT

OPEN

A\

Caution:

Read

this

page

carefully

to

keep

your

safety.

Safety

precautions

Safety

precaution

for

AC

plug

(For

U.S.A.

and

Canada)

CAUTION:

To

PREVENT

ELECTRIC

SHOCK

DO

NOT

USE

THIS

(POLARIZED)

PLUG

WITH

AN

EXTENSION

CORD.

RECEPTACLE

OR

OTHER

OUTLET

UNLESS

THE

BLADES

CAN

BE

FULLY

INSERTED

TO

PREVENT

BLADE

EXPOSURE.

WARNING:

TO

PREVENT

FIRE

OR

ELECTRIC

SHOCK,

DO

NOT

EXPOSE

THIS

APPLIANCE

TO

RAIN

OR

MOISTURE.

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.

THE

LIGHTNING

FLASH

WITH

ARROWHEAD

SYMBOL,

WITHIN

AN

EQUILATERAL

TRIANGLE,

iS

INTENDED

TO

ALERT

THE

USER

TO

THE

PRESENCE

OF

UNINSULATID

“DANGEROUS

VOLTAGE”

WITHIN

THE

PRODUCT’S

ENCLOSURE

THAT

MAY

BE

0F

SUFFICIENT

MAGNITUDE

TO

CONSTITUTE

A

RISK

OF

ELECTRIC

SHOCK

TO

PERSONS.

THE

EXCLAMATION

POINT

WITHIN

AN

EQUILATERAL

TRIANGLE

IS

INTENDED

TO

ALERT

THE

USER

TO

THE

PRESENCE

OF

IMPORTANT

OPERATING

AND

MAINTENANCE

(SERVICING)

INSTRUCTIONS

IN

THE

LITERATURE

ACCOMPANYING

THE

APPLIANCE.

2

KT-57{K)

Important

safeguards

Please

read

ail

of

the

safety

and

operating

instructions

before

operating

this

unit.

For

best

results,

follow

all

warnings

placed

on

the

unit

and

adhere

to

the

operating

and

use

instructions.

These

safety

and

operating

instructions

should

be

retained

for

future

reference.

1.

Power

sources

—

The

unit

should

be

connect-

ed

to

a

power

Supply

only

of

the

type

described

in

the

operating

instructions

or

as

marked

on

the

appliance.

2.

Power-cord

protection

—

Power-supply

cords

should

be

routed

so

that

they

are

not

likely

to

be

walked

on

or

pinched

by

items

placed

upon

or

against

them,

pay

particular

attention

to

cords

at

plugs,

convenience

receptacles,

and

the

point

where

they

exit

from

the

unit.

Never

pull

or

stretch

the

cord.

3.

Grounding

or

polarization

—

Precautions

that

should

be

taken

so

that

the

grounding

or

polari-

zation

means

of

this

unit

is

not

defeated.

4.

Ventilation

—

The

unit

should

be

situated

so

that

its

location

or

position

does

not

interfere

with

its

proper

ventilation.

TO

maintain

good

ventilation,

do

not

put

records

or

a

table-cloth

on

the

unit.

Place

the

unit

at

least

10 cm

away

from

the

walls.

Do

not

use

the

unit

on

a

bed,

sofa.

rug

or

similar

surface

that

may

block

the

ventilation

openings.

5.

Water

and

moisture

—

The

unit

should

not

be

used

near

water

—

for

example,

near

a

bathtub,

washbowl,

kitchen

sink,

laundry

tub,

in

a

wet

basement,

or

near

a

swimming

pool,

etc.

A\

Caution:

Read

this

page

carefully

to

keep

your

safety.

6.

10.

Temperature

—

The

unit

may

not

function

properly

if

used

at

extremely

low,

or

freezing

temperatures.

The

ideal

ambient

temperature

is

above

+5°C

(41°F).

.

Heat

—

The

unit

should

be

situated

away

from

heat

sources

such

as

radiators,

heat

registers,

stoves,

or

other

units

{including

amplifiers)

that

produce

heat.

.

Electric

shock

—

Care

should

be

taken

so that

object

do

not

fall

and

liquid

are

not

spilled

into

the

enclosure

through

openings.

If

a

metal

object,

such

as

a

hair

or

a

needle,

comes

into

contact

with

the

inside

of

this

unit,

a

dangerous

electric

shock

may

result.

For

families

with

children,

never

permit

children

to

put

anything.

especially

metal,

inside

this

unit.

.

Enclosure

removal

—

Never

remove

the

enclo-

sure.

If

the

internal

parts

are

touched

accidental-

ly,

a

serious

electric

shock

might

occur.

AC

outlets

-

Do

not

connect

other

audio

equipment

with

a

power

consumption

larger

than

that

specified

to

the

AC

outlet

on

the

rear

panel.

Never

connect

other

electrical

units,

such

as

an

iron

or

toaster,

to

it

to

prevent

fire

or

electric

shock.

The

maximum

capacities

indicated

for

the

AC

outlets

on

the

rear

panel

of

the

this

unit

are

as

follows.

UNSWITCHED

outlets

-

800W

Kr-57k)

3

11.

Magnetic

fields

—

Keep

the

units

away

from

a

source

of

magnetic

fields

such

as

TV

sets,

speaker

systems,

radios,

motorized

toys

or

mag-

netized

objects.

12.

Cleaning

-—

Do

notuse

volatile

solvents

such

as

alcohol,

paint

thinner,

gasoline,

benzine,

etc.

to

clean

the

cabinet.

Use

a

clean

dry

cloth.

13.

Nonuse

periods

~

The

power

cord

of

the

unit

should

be

unplugged

from

the

outlet

when

left

unused

for

a

long

period

of

time.

A\

Caution:

Read

this

page

carefully

to

keep

your

safety.

14.

Abnormal

smell

-

If

an

abnormal

smell!

or

smoke

is

detected,

immediately

turn

the

power

OFF

and

pull

out

the

power

cord.

Contact

your

dealer

or

nearest

service

station.

POWER

OFF!

han

Ree

Neo

an

22

o|

Sa

©

}

g

ae

15.

Damage

requiring

service

—

The

unit

should

be

serviced

by

qualified

service

personnel

when:

A.

The

power-supply

cord

or

the

plug

has

been

damaged;

or

B.

Objects

have

fallen,

or

liquid

has

been

spilled

into

the

unit;

or

C.

The

unit

has

been

exposed

to

rain;

or

D.

The

unit

does

not

appear

to

operate

normally

or

exhibits

a

marked

change

in

performance;

or

E.

The

unit

has

been

dropped.

or

the

enclosure

damaged.

i

ad}

16.

Servicing

-

The

user

should

not

attempt

to

service

the

unit

beyond

that

described

in

the

operating

instructions.

All

other

servicing

should

be

referred

to

qualified

service

personnel.

17.

Outdoor

antenna

grounding

-—

If

an

outside

antenna

is

connected

to

the

receiver,

be

sure

the

antenna

system

is

grounded

so

as

to

provide

some

protection

against

voltage

surges

and

built

up

static

charges.

Section

810

of

the

Nationa!

Electrical

Code,

ANSI/NFPA

No.

70

~

1984.

provides

information

with

respect

to

proper

grounding

of

the

mast

and

supporting

structure,

grounding

of

the

lead-in

wire

to

an

antenna

discharge

unit,

size

of

grounding

conductors,

location

of

antenna-discharge

unit,

connection

to

grounding

electrodes,

and

requirements

for

the

grounding

electrode.

See

Figure.

°

Use

No.10

AWG

(5.3

mm?)

copper,

No.8

AWG

(8.4

mm?)

aluminum,

No.17

AWG

(1.0

mm?)

copper-clad

steel

or

bronze

wire.

Or

larger.

as

a

ground

wire.

Secure

antenna

lead-in

and

ground

wires

to

house

with

stand-off

insulators

spaced

from

4

-

6

feet

(1.22

-

1.83

m)

apart.

n

Mount

antenna

discharge

unit

as

close

as

possible

to

where

lead-in

enters

house.

Or

the

equivalent,

when

a

separate

antenna-grounding

electrode

is

used.

See

NEC

Section

810-2

1(j).

18.

Power

lines

-—

An

outdoor

antenna

should

be

located

away

from

power

lines.

Notes:

Use

jumper

wire

not

smaller

than

No.6

AWG

(13.3

mm?)

copper,

POWER

LINES

~

SERVICE

ENTRANCE

et

~—

CONDUCTORS

@

]

Ny

STANDOFF

INSULATORS?

ey

=

"a

Ay

MAST

Lind

y)

y

SERVICE

ENTRANCE

eB,

EQUIPMENT

ANTENNA

DISCHARGE

UNIT®

TO

EXTERNAL

ANTENNA

TERMINALS

OF

PRODUCT

GROUND

wiRe*°

GROUND

CLAMPS

POWER

SERVICE

GROUNDING

&

ELECTRODE

SYSTEM

ola

(8.9.

interior

metal

water

pipe)

«nD

BONDING

JUMPER*®

OPTIONAL

ANTENNA

GROUNDING

ELECTRODE

DRIVEN

8

FEET

(2.44

m)

INTO

THE

EARTH

IF

REQUIRED

BY

LOCAL

CODES.

SEE

NEC

SECTION

810-21(f).

FIGURE

EXAMPLE

OF

ANTENNA

GROUNDING

ACCORDING

TO

THE

NATIONAL

ELECTRICAL

CODE

INSTRUCTIONS

CONTAINED

IN

ARTICLE

810

—“RADIO

AND

TELEVISION

EQUIPMENT”

1.

Item

3

is

not

required

except

for

grounded

or

polarized

equipment.

2.

Item

10

is

not

required

except

for

units

provided

with

AC

outlets.

3.

Item

17

and

18

are

not

required

except

for

units

provided

with

antenna

terminals.

4

kt-57«)

System

connections

FM

outdoor

antenna

Connect

the

loop

antenna

as

shown.

Speaker

system

Output

Signals

from

the

output

jacks

are

fed

to

the

amplifier.

Connection

cables

should

be

plugged

to

the

amplifier

TUNER

or

AUX

jacks.

Shielded

cables

terminated

at

both

ends

with

standard

phono

plugs

are

supplied

with

this

tuner.

AC

outlet

(except

for

Australia)

The

AC

outlets

on

the

rear

panel

can

be

used

to

supply

power

to

other

components

in

the

system.

Never

connect

equipment

whose

power

consumption

exceeds

the

maxi-

mum

value

shown

at

each

outlet.

UNSWITCHED

(except

some

models):

The

outlet

provides

power

when

the

unit

is

plugged

into

an

active

AC

wall

outlet,

regardless

of

the

setting

of

the

POWER

switch.

The

maximum

capacity

is

total

8OOW.

Ground

For

maximum

safety

and

minimum

interference

connect

the

GND

terminal

to

a

good

earth

ground

if

practicable.

A

good

earth

ground

is

a

cold

water

pipe

or

a

metal

stake

driven

into

moist

earth.

However,

never

use

a

gas

pipe

for

this

purpose.

AM

antennas

AM

loop

antenna

Install

the

AM

loop

antenna

to

the

supplied

loop

antenna

stand

and

place

them

ona

shelf,

etc..

or

install

them

in

the

rack

or

wall

with

screws.

Rotate

the

AM

loop

antenna

to

the

right

or

left

for

best

reception.

FM

indoor

antenna

75

coaxial

cable

[3000

feeder

|

Amplifier

AM

outdoor

antenna

These

switches

and

AC

outlets

are

not

pro-

vided

with

the

units

shipped

to

some

areas.

Semaine

nd

For

connection

to

the

system

control

termi-

nal

and

its

function,

refer

to

page

8.

Speaker

system

loop

antenna

stand

Keep

the

speaker

leads

and

AC

cord

away

from

the

AM

loop

antenna.

Note:

Do

not

place

the

AM

loop

antenna

on

the

unit.

As

this

ynit

employs

computing

device,

placing

the

AM

loop

antenna

on

the

unit

may

result

in

noise

generation.

Place

the

AM

loop

antenna

away

from

the

unit.

KT

-57

(ky

5

AM

outdoor

antenna

In

steel

buildings

or

ata

great

distance

from

the

transmitter,

it

may

be

necessary

to

install

an

outside

long

wire

antenna.

The

end

of

this

wire

should

be

stripped

of

insulation

and

connected

to

the

AM

terminal.

At

this

time,

keep

the

loop

antenna

connected.

FM

antenna

Your

tuner

approaches

the

theoretical

limit

in

FM

sensitivi-

ty.

However,

the

performance

of

your

system

is

determined

to

a

very

large

extent

upon

the

signal

conditions

where

the

antenna

is

placed.

The

reason

is

that

FM

broadcast

signals

travel

in

straight

paths.

Therefore

they

can

be

blocked

by

natural

or

man-made

obstructions

such

as

mountains,

hills

or

buildings.

At

large

distances

from

the

transmitter

the

—

curvature

of

the

earth

acts

as

a

screen

between

the

transmitter

and

receiver.

Consider

the

signal

conditions

in

planning

your

installation.

lf

you

live

in

or

near

an

urban

area

the

indoor

antenna

(supplied)

may

serve

your

needs

adequately.

However,

if

desired

stations

are

weak

due

to

natural

obstructions,

or

if

you

live

in

a

butiding

which

is

made

of

steel-reinforced

concrete

(which

acts

as

a

shield)

it

may

be

necessary

to

install

a

good

outdoor

antenna.

FM

outdoor

antenna

Consult

with

your

dealer

or

service

man

about

the

best

method

of

selecting

and

erecting

an

outdoor

FM

antenna.

The

choice

of

lead-in

(feeder)

wire

is

also

important.

The

flat

ribbonshapped

twin

lead

performs

well

electrically,

is

cheaper

and

is

somewhat

easier

to

handle

in

routing

through

windows

and

around

rooms.

Coaxial

cable

is

more

expensive,

does

a

much

better

job

of

minimizing

inter-

fence,

is

less

prone

to

the

effects

of

weather

and

close-by

metal

objects,

and

is

nearly

as

good

a

signal

conductor

as

the

ribbon

type

wire.

The

latter

is

particularly

true

of

foam-type

coaxial

cables.

Coaxial

cable

is

somewhat

more

difficult

to

install

at

the

point

where

the

cable

enters

the

building.

If

coaxial

cable

is

selected,

make

sure

the

antenna

is

designed

to

drive

that

type

of

cable.

@

To

minimize

auto-ignition

noise,

locate

the

antenna

as

far

from

heavy

traffic

as

possibie.

@

Keep

the

feeder

or

coaxial

cable

as

short

as

possible.

Do

not

bundle

or

roll

up

excess

cable.

@

The

antenna

should

be

at

least

two

meters

(6.6

feet)

from

reinforced

concerete

walls,

or

metal

structures.

FM

outdoor

antenna

installation

Note:

Do

not

connect

both

the

3000

feeder

and

752

coaxial

cable

to

the

FM

antenna

terminal.

FM

indoor

antenna

Connect

the

T-shaped

indoor

antenna

(supplied)

to

the

3000

FM

ANTENNA

terminals

as

shows

in

the

System

connections

diagram.

Spread

the

two

arms

that

form

the

top

of

the

“T”

horizontally

and

hold

them

against

conven-

ient

wall

surfaces.

Try

several

locations

for

best

results

on

your

desired

stations.

Tape

the

antenna

in

place

where

the

best

compromise

is

found

between

listening

results

and

appearance.

6

«KT-57

4

FM

DE-EMPHASIS

switch

(rear

panel)

(This

switch

is

not

provided

to

the

units

for

some

areas.)

This

switch

has

been

set

to

the

correct

position

for

a

given

market

area.

However,

check

to

see

that

this

switch

is

set

correctly

before

operating

your

tuner.

An

incorrect

setting

will

adversely

affect

high

frequency

performance.

(The

FM

DE-EMPHASIS

switch

is

not

equipped

with

units

shipped

to

Oceania.)

Europe

and

OC@ANIA

0.0...

cece

cceccesccsseseseeecesaees

50

us

OPIS

COU

TICS

caiceveecs

ssenase

sastetoeuisumeds

laisse

75

ws

AM/FM

CHANNEL

SPACE

switch

(rear

panel)

(This

switch

is

not

provided

to

the

units

for

some

areas.)

The

CHANNEL

SPACE

switch

on

the

rear

plate

is

set

to

the

correct

setting

that

prevails

in

the

area

to

which

the

unit

is

shipped.

However,

if

the

channel

space

setting

is

not

matched

to

the

area

where

the

tuner

is

to

be

used;

for

instance,

when

you

moved

from

area

1

to

area

2

or

vice

versa,

desired

broadcasts

cannot

be

received.

In

this

case,

change

the

CHANNEL

SPACE

setting

in

accordance

with

the

area

corresponding

to

the

table

shown

below.

1

U.S.A.,

Canada

FM:

100

kHZ

Hawaii,

and

Guam

AM:

10

kHz

F

A

2

European

countries

M:

50

kHz

Far

East

countries

M:

9

kHz

Channel

Space

Table

Notes:

1.

Operate

the

AM/FM

CHANNEL

SPACE

switch

after

plugging

out

the

power

cord

from

the

AC

outlet.

2.

To

reset

the

switches

equipped

on

the

rear

panel,

slide

the

switch

to

the

opposite

side

with

a

screwdriver

or

other

pointed

tool.

Controls

and

indicators

@

POWER

switch

Press

this

switch

to

supply

power.

Press

the

switch

again

to

turn

the

power

off.

@

PRESET

CHANNEL

key

One

AM

or

FM

station

can

be

stored

in

each

PRESET

CHANEL

key.

When

the

key

ts

pressed,

the

stored

frequen-

cy

!s

displayed

in

the

digital

frequency

counter.

Press

the

MEMORY

key,

and

then

press

one

of

the

PRESET

CHAN-

NEL

keys

within

5

seconds.

@©

MEMORY

key

When

this

key

ts

pressed,

the

MEMORY

indicator

lights

and

the

unit

stands

by

for

preset

station

memory.

@

Tuning

mode

(AUTO/MANUAL)

key

Press

this

key

to

select

the

tuning

mode

between

AUTO

or

MANUAL.

In

MANUAL

mode,

an

FM

stereo

broadcast

is

received

in

monaural.

@

Band

selector

(AM,

FM)

switches

Press

to

select

receiving

band.

©

PRESET

SCAN

key

|

When

the

PRESET

SCAN

key

is

pressed,

the

station

memorized

in

the

preset

channel

is

received

for

5

seconds,

then

the

station

memorized

in

the

channel

is

received.

When

the

desired

station

is

tuned

tn,

press

the

PRESET

SCAN

key

again.

@

TUNING

(DOWN,

UP)

key

AUTO-tuning:

When

the

UP

or

DOWN

side

is

pressed,

the

frequency

automatically

increases

or

decreases

until

the

of

sufficient

signal

strength

is

reached.

MANUAL

(MONO)

tuning:

Each

time

the

UP

or

DOWN

side

is

pressed,

the

displayed

frequency

in-

creases

or

decreases.

When

either

side

of

the

button

is

held

down,

the

displayed

frequency

will

continue

to

increases

or

decreases

until

the

button

ts

released.

@©

PRESET

A/B

selector

switch

10

preset

channels,

CH1

to

O.,

are

provided

for

each

Side

A

and

side

B,

allowing

to

preset

up

to

20

channels

in

total.

©

DIGITAL

FREQUENCY

COUNTER

and

channel

display

G@)

Band

indicators

Indicates

the

reception

band.

(@)

Frequency

display

Displays

the

receiving

frequency.

(@)

PRESET

A/B

selector

indicator

Indicates

preset

side

A

or

B.

(44)

PRESET

CHANNEL

indicators

When

the

PRESET

CHANNEL

key

is

pressed,

the

corre-

sponding

number

of

the

PRESET

CHANNEL

is

displayed.

6)

TUNED

indicator

Lights

when

the

station

is

turned

in

correctly.

(©)

STEREO

indicator

Lights

when

the

FM

stereo

broadcast

with

a

sufficient

signal

strength

is

received.

@)

AUTO

indicator

Lights

when

the

tuning

mode

is

set

to

AUTO

with

the

TUNING

MODE

button.

MEMORY

indicator

Lights

for

about

5

seconds

when

the

MEMORY

key

is

pressed

in

tuning

mode.

KT-57(K)

7

Operation

instructions

M@

Auto

tuning

ls

2.

Set

the

input

selector

of

the

amplifier

to

TUNER.

Press

the

POWER

switch.

The

DIGITAL

FREQUENCY

COUNTER

lights

and

the

frequency

of

the

last

station®

is

displayed.

.

Set

the

tuning

mode

key

to

AUTO.

.

For

AM

reception,

press

the

AM

key

of

the

FM/AM

selector

switches.

The

AM

indicator

in

the

digital

_

frequency

counter

lights.

For

FM

reception,

press

the

FM

key

of

the

FM/AM

selector

switches.

The

FM

indicator

in

the

digital

frequency

counter

lights.

.

Press

the

UP

or

DOWN

side

of

the

TUNING

key.

The

unit

starts

scanning

the

selected

band

and

the

scanning

stops

when

a

station

is

received.

.

Adjust

the

volume

and

tone

with

the

amplifier.

*

Last

station

As

the

memory

of

this

unit

is

backed

up,

the

frequency

received

before

the

power

is

turned

off

is

memorized.

This

is

referred

to

as

the

last

station

frequency.

When

the

power

is

turned

on

again,

the

unit

tunes

in

to

the

last

station

frequency.

Note:

If

an

AM

station

and

an

FM

station

have

been

memorized

in

the

same

preset

channel,

the

frequency

of

the

last

station

received

may

not

be

correctly

retained

in

the

memory.

8

KT-57

M@

Manual

tuning

1.

Set

the

input

selector

of

the

amplifier

to

TUNER.

2.

Press

the

POWER

switch.

The

DIGITAL

FREQUENCY

COUNTER

lights

and

the

frequency

of

the

last

station"

is

displayed.

3.

Set

the

tuning

mode

key

to

MANUAL

(MONO).

4.

For

AM

reception,

press

the

AM

key

of

the

FM/AM

selector

switches.

The

AM

indicator

in

the

digital

frequency

counter

lights.

For

FM

reception,

press

the

FM

key

of

the

FM/AM

selector

switches.

The

FM

indicator

in

the

digital

frequency

counter

lights.

.

Tune

in

to

the

requires

station

with

TUNING

key.

.

Adjust

the

volume

and

tone

with

the

amplifier.

oS)

Preset

tuning

.

Receive

a

station

(AM/FM).

.

Press

the

MEMORY

switch.

.

Press

one

of

the

PRESET

CHANNEL

keys

within

5

seconds.

The

PRESET

CHANNEL

indicator

lights

up

to

show

that

the

station

is

preset.

Perform

the

same

procedures

on

other

PRESET

CHAN-

NEL

keys.

Up

to

20

stations

(AM/FM)

can

be

randomly

preset.

To

receive

the

preset

station,

press

the

corresponding

PRESET

CHANNEL

key.

WON

§

A-1

>

A-2

+

A-9

>

A-O

>

B-1

>

B-2

-.--

B-9

—

B-0

To

release

this

function,

press

the

PRESET

SCAN

again.

M@

Preset

scan

Each

station

in

the

PRESET

CHANNEL

memories

will

be

received

(monitored)

for

5

seconds

sequentially.

When

the

Station

in

the

PRESET

CHANNEL

is

being

received,

scanning

starts

from

the

CHANNEL

station.

If

not,

scanning

will

start

from

the

station

preset

in

the

A-1

channel.

M@

System

control

terminal

A

system

control

terminal

is

provided

on

the

rear

panel,

allowing

the

remote

control

of

the

tuner

when

the

jack

is

connected

to

the

system

control

terminal

on

the

amplifier.

For

the

remote

control

range

and

control

method,

please

refer

to

the

instruction

manual

of

an

amplifier

equipped

with

the

system

control

terminal

(KC-207,

for

example).

In

case

of

difficulty

lf

your

tuner

should

not

perform

as

expected,

consult

the

table

below

to

see

if

the

problem

can

be

corrected

before

seeking

help

from

your

dealer

or

service

representative.

The

station

stored

in

the

PRESET

The

memory

is

not

backed

up

due

CHANNEL

key

is

erased.

tO

poor

power

cord

connection.

Connect

the

power

cord

securely

to

the

AC

outlet.

When

the

power

cord

is

connected

to

the

amplifier

switched

AC

outlet

or

timer,

the

memory

contents

are

retained

for

only

about

3

days.

Occurs

Sonne

AM

Possible

cause

Remedy

:

reception

only

High-frequency

especially

at

night.

Interference

from

TV

set.

Turn

off

TV

set,

if

problem

disap-

pears

try

relocating

TV

set.

Impossible

to

eliminate,

but

try

HIGH

filter

of

your

amplifier.

Beats

from

adjacent

AM

station.

No

remedy.

Fluorescent

lamps

starting.

Try

reversing

AC

plug.

Appliance

or

furnace

starting.

Try

reversing

AC

plug.

Hiss

that

gets

worse

in

stereo

Very

weak

antenna

input

signal.

Consider

an

outdoor

antenna

instal-

reception.

lation.

In

areas

remote

from

the

transmitter

a

5

to

8

element

anten-

na

designed

exclusively

for

FM

is

suggested.

Intermittent

buzz

or

cracking

sound.

Lightning.

Automobile

ignition

noise,

especially

|

Review

antenna

installation.

Site

the

evident

when

receiving

weak

antenna

as

far

from

the

street

as

signals.

possible

and

use

coaxial

cable.

Another

possible

effect

of

a

very

Antenna

system

needs

attention

(see

weak

signal.

above).

Rhythmic

static

or

popping

noises.

STEREO

indicator

fails

to

light

dur-

ing

stereo

broadcast.

kT-57

ky)

QO

Specifications

KT-57

FM

Tuner

Section

Tuner

frequency

range

2.0.0...

ccc

ccccceseccescseececcsteccscssstseveresseceeceeeecs

87.5

MHz-

108

MHz

Antena

inpedancee...........occccc

cc

cccccccescecccscescesscesserstececectecteceeseesececeececccec.

300

ohms

balanced

75

ohms

unbalanced

Sensitivity

Usable

sensitivity

(IHF):

MONO

ooo

ccccccceeseeceesseecccccce.

0.95

nV

(10.8

dBf)

20

dB

quieting

sensitivity

(IHF)

DUE

NO

ges

cies

sacisegs

tacit

Gensccnicenss

shee

eye

thon.

tost

atau

dliecealec

team

seoet

dees

3.0

pV

(14.7

GBF)

ME

OS

5

oeen

52325220

dct

he

ssvsdeneatnnusntnesaasasuatiie

indeistis

etaien

ces

wee

49

pV

(39.0

GBP)

Total

harmonic

distorition

Mono:

(75

kHz

Dev.)

WO

Ne

sss

teases

cassettes

ete

ada

mets

Mena

wh

teca

hoes

0.30%

SO

AZ

~

10,000

HZ

ooo

cccccccscesccececceeuseuseaveseececeeeeseeseeeesece.

0.50%

Stereo:

(75

kHz

Dev.)

15.8

|

08

3b

SRR

SPN

eta

es

ee

ne

eee

ee

0.30%

DO

HZ

~

10,000

Hz

oon

cccccsccacesecsesccascatesseetaceeeeceseeceseesseccc

0.70%

Signal-to-Noise

ratio

Mono:

(75

kHz

Dev.)

65

dBf

input...

ccccccccccccccecceceecececccecccee.

76

dB

BS

GBP

INDUC.

viscosities

77

dB

Stereo:(75

kHz

Dev.)

65

dBf

input

o.oo.

ccccccccccccccececccecceccececcccce.

72

dB

85

dBf

input

2.000

ccccscsssccescccneereesees

74

dB

COPE

UTO

FAE

IO

iscsi

apoio

tecs

cepa

Sisceajnqueiees

tacec

de

sccoewadeean:

1.2

dB

:

Alternate

channel

selectivity

kon

|

ge

oie

1

0

8

3d

9

|

Se

ene

eae

ee

a

ne

50

dB

Stereo

separation

PUL

6S

2g)

ob

eee

ee

oa

eo

eee

at

ee

en

ee

eee

40

dB

5O

HZ

~

10,000

H2

oon

ccccesccsecccccsstescceceestaseeseeesseeeeesee

cc

35 dB

Frequency

response

SSOP

VS

000

WA

noisier

cele

astcntaciadiiakieitlatattd

ccecccumeniece

aciegite

+0.5

dB,

~2.0

dB

Image

rejection

ration

(98

MH2)

ooo...

ccccccccccccccecesscsseseccceceeseccceeee,

50

dB

IF

rejection

ration

(98

MHZ)

oo.

ccccccccccccccecscsccesesteeececeeeececcececec.

95

dB

Spurious

rejection

ration

(98

MHZ)...

ccccccccccceccccccceceecececeecececcee.

100

dB

AM

suppression

ratio...

cecccccceccscesesscsesssccecesseseveecesecececceseeccccccce.

95

dB

Sub-carrier

SUPpressSion

ratio

oo...

cece

ccccccececcecsceesecececeeeceeseseeeecececcee.

37

dB

Output

level/impedance

at

1,000

Hz,

100%

Deven.

ccccccccccccecceteccecceceeseveeeceeebeseeccce

ce

0.6

V/3.3

kohms

AM

Tuner

section

Tuning

frequency

ramge

o.oo...

cc

cccccccsceccscsctesseseceseceesecececeeeeseccecc.

5317

kKHz-

1,602

kHz

(9

kHz

step)

530

kHz-

1,610

kHz

(10

kHz

step)

Usable

Sensitivity

o.oo

cccccccccccececceccessecevectevecteceeeececeeeeseceecce.

14

pV

(400

nV/m)

Signale-to-Noise

ratio

(30

%

Mod:

1

MV

input)...

cccccccccccccecccsececeeceeeeseecoececcc

50

dB

—

Total

harmonic

distortion

oo.

cccccccccccecccceceececeececseceseceeeeecccccec.

0.5%

PMage

Ejection

ratio...

cc

cccscecscscssseseacsescssscscescessesestecececeeccecece.

40

dB

Selectivity

(VHF).........00.0.

oc

cccccccccecscsescsececeeseseveveveveceeseeesee

cesses

25

dB

Output

level/impedance

400

Hz,

At

400

Hz,

30%

Mode...

cccccccsceccsteccecsscsssesecesteseeseceeebeseeceescccecce

0.18V/3.3

kohms

GENERAL

|

Power

Consumption

0.00000

ccccccccscscssececcssessescseceeeseceeseseeebeseeeoesececcc

9W

EDITS

SHINS

5

iain

soins

bck

Heese

etd

taecscaran

ideas

ice,

biealmncitirae

ei

fesiesd

sche

os

W:

420

mm

(16-9/16")

H:

65

mm

(2-9/16")

D:

251

mm

(9-7/8")

WONG

(NOG)

isis

cadet

ore

atch

ua

nent

ieee

ecate

date

leet

ie

2.8

kg

(6.2

Ib)

Note:

We

follow

a

policy

of

continuous

advancements

in

development.

For

this

reason

specifications

may

be

changed

without

notice.

10

KT-571k)

KENWOOD

Kenwood KT-57 User manual

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