Harman Kardon ST360A Owners Manual - Page 3

If

an

outdoor

antenna

is

required

to

"reach"

for

distant

stations

use

a

special

folded

dipole

or

Yagi

cut

specifically

for

the

FM

band.

If

your

TV

antenna

is

cut

for

the

FM

band

as

well

as

for

TV

reception,

an

antenna

coupler

or

knife

switch

may

be

used

to

connect

the

antenna

to

both

re-

ceivers.

When

using

an

outdoor

antenna,

attach

the

300

ohm

lead-in

wire

(twisting

it

4-5

times

for

each

running

foot)

to

the

antenna

terminals

on

the

rear

of

the

ST360A

marked

FM

and

G.

Grounding:

It

is

not

generally

recommended

to

separately

ground

the

ST360A

tuner

to

your

companion

amplifier.

This

may

cause

a

ground

loop

and

induce

hum.

OPERATING

INSTRUCTIONS

To

Receive

Monophonic

AM

Broadcasts:

Depress

the

AM

push

button

to

turn

the

tuner

on

and

to

select

the

AM

broadcast

band.

Tune

to

the

desired

station

with

the

AM

TUNING

control. To

insure

proper

tuning

a

unique

electronic

eye

tuning

indicator

has

been

incorpo-

rated

into

the

AM

circuit.

Tune

for

minimum

dark

space

between

the

green

bars.

To

receive

noisy

or

distant

AM

stations

depress

the

AM

NOISE

FILTER

push

button.

A

special

electronic

fi

lter

will

eliminate

the

interference

that

gen-

erally

accompanies

long

range

AM

reception.

To

Receive

Monophonic

FM

Broadcasts:

Depress

the

FM

push

button

to

turn

the

tuner

on

and

to

select

the

FM

broadcast

band.

Tune

to

the

desired

station

with

the

FM

TUNING

control. To

insure

proper

tuning

tune

for

minimum

dark

space

between

the

green

bars

on

the

electronic

tuning

eye.

Now

depress

the

FM

-AFC

push

button

to

retune

the

station

by

a

ratio

of

ten

to

one.

AFC

action

will

be

discussed

in

a

later

para-

graph.

To

Receive

Stereophonic

Simulcast

AM

-FM

Broadcasts:

Depress

the

AM

push

button

to

turn

the

tuner

on

and

to

select

the

AM

broadcast

band.

Tune

to

the

desired

AM

station

with

the

AM

TUNING

control.

Depress

the

FM

push

button

and

turn

the

FM

TUNING

control

to

the

same

station

you

just

selected

on

the

AM

band.

You

will

now

have

the

same

station

on

AM

and

FM.

Now

depress

the

STEREO

AM

-FM

push

button

to

operate

the

AM

and

FM

bands

simultaneously.

The

AM

portion

of

the

simulcast

should

appear

in

one

speaker

and

the

FM

portion

in

the

other

to

recreate

the

stereophonic

broadcast.

FM

-AFC

is

automatically

applied

when

the

push

button

is

in

the

STEREO

AM

-FM

position.

The

balance

control

on

your

amplifier

should

be

set

to

the

center

position.

The

audio

stereo

balance

can

now

be

adjusted

with

the

STEREO

AM

-FM

BAL-

ANCE

control

located

on

the

lower

left

hand

portion

of

the

ST360A

front

panel.

To

adjust,

turn

the

wheel

-type

knob

either

clockwise

or

counterclockwise.

Turning

clockwise

increases

the

FM

audio

signal

and

counterclockwise

increases

the

AM

signal.

To

Receive

Stereophonic

Multiplex

Broadcasts:

For

this

type

reception

the

special

Harman-Kardon

MA350

multiplex

adapter

must

be

plugged

into

the

receptacle

provided

for

on

the

tuner

chassis.

Reception

of

FM

Multiplex

broadcasts

using

the

Crosby

multiplex

method

of

transmission

is

uncomplicated.

Most

of

the

work

is

done

for

you

by

the

ST360A

tuner.

Depress

the

FM

push

button

and

tune

to

the

desired

multiplex

station.

Tune

for

minimum

deflection

of

the

electronic

tuning

indicator.

Now

depress

the

STEREO

MULTIPLEX push

button

and

adjust

the

DIMENSION

control

(lo-

cated

on

the

lower

lip

of

the

front

panel)

for

maximum

stereo

effect.

You

will

note

when

this

control

is

turned

to

the

extreme

counterclockwise

position,

mono-

phonic

reception

results.

As

the

DIMENSION

control

is

turned

in

a

clockwise

direction,

the

stereophonic

effect

will

be

introduced

and

will

reach

a

maximum.

After

reaching

this

point,

the

stereo

effect

will

diminish,

and

the

tonal

character

of

the

program

will

change.

The

setting

for

stereo

effect

is

fairly

broad

and

may

vary

for

different

stations.

TECHNICAL

EXPLANATION

OF

THE

CONTROLS

Push

Button

Selector

Switch:

This

unique

function

selector

switch

has

seven

positions.

1.

AM

NOISE

FILTER

to

eliminate

extraneous

noise

for

clear

long

distance

reception.

2.

AM

selects

the

AM

band

for

monophonic

reception.

3.

STEREO

AM

-FM

selects

both

the

AM

and

FM

band

for

simulcast

stereo-

phonic

reception.

4.

STEREO

MULTIPLEX

selects

stereophonic

FM

when

the

Model

MA350

multiplex

adapter

is

plugged

into

the

tuner.

5.

FM

selects

the

FM

band

for

monophonic

reception.

6.

FM

-AFC

selects

the

FM

band

for

monophonic

reception

with

the

addi-

tion

of

a

powerful

Automatic

Frequency

Control

circuit

to

help

retune

the

sta-

tion

by

a

tuning

ratio

of

10:1.

7.

POWER

OFF

when

depressed

turns

the

tuner

off.

To

turn

the

tuner

on

merely

depress

any

other

push

button.

Automatic

Frequency

Control:

FM

Broadcasting,

by

its

very

nature,

eliminates

almost

all

natural

and

man-

made

static.

However,

the

characteristics

of

FM

which

makes

this

possible

also

Harman Kardon ST360A Owners Manual - Page 3

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