Harman Kardon D200 Owners Manual - Page 2

ANTENNA

CONNECTIONS

AM

The

Harman-Kardon

ceramic

loop

stick

built

into

the

Recital

comprises

all

the

antenna

required

for

the

finest

in

noise

-free

local

AM

reception.

In

locations

more

removed

from

metropolitan

areas,

an

outdoor

antenna

may

be

required.

This

should

consist

of

a

single

wire,

as

long

as

is

reason-

ably

practical,

located

away

from

large

metal

objects,

power

lines,

or

electrical

machinery.

Connect

one

end

to

the

"AM"

terminal

of

the

"ANTENNA"

terminal

strip

on

the

rear

of

the

chassis.

FM

Due

to

the

extremely

high

FM

sensitivity

of

the

Recital,

the

48"

wire

furnished

will

be

sufficient

an-

tenna

for

all

but

the

most

difficult

locations.

One

end

of

the

wire

should

be

connected

to

the

"FM"

terminal

of

the

"ANTENNA"

terminal

strip,

the

other

end

being

left

free

and

extended

as

may

be

convenient.

In

re-

mote

locations,

a

standard

roof

-top

dipole

and

suitable

twin

leadin

wire

may

be

used,

connected

between

the

"FM"

and

"G"

terminals.

POWER

CONNECTIONS

If

your

music

system

is

limited

to

AM

and

FM

radio

reception,

all

that

is

now

necessary

for

operation

is

to

plug

the

power

cord

into

any

outlet

furnishing

117

volts,

60

cycles

house

current.

The

exact

voltage

is

relatively

unimportant,

and

may

vary

between

105

and

125;

be

sure,

however,

that

you

have

60

cycle

AC

power.

For

your

convenience,

the

power

cord

of

the

Recital

has

been

made

extra

long.

An

auxiliary

AC

receptacle

is

incorporated

on

the

chassis

to

furnish

power

to

an

as-

sociated

device,

such

as

record

changer,

tape

recorder,

etc.

PHONOGRAPH

CONNECTIONS

Any

type

of

record

player

will

operate

with

the

Recital.

To

derive

maximum

enjoyment

it

is

suggested

that

a

high

quality

pickup

cartridge

and

a

rumble

-free

turntable

be

used.

Two

classes

of

pickup

cartridges

are

in

general

use:

Magnetic

(GE,

Pickering,

Clark-

stan,

Fairchild,

and

Audak)

and

Crystal

(including

the

newly

developed

ceramics).

While

any

type

of

car-

tridge

may

be

used

with

the

Recital,

it

is

strongly

urged

that

the

magnetic

type

be

selected.

It

should

be

plugged

into

the

receptacle

marked"PH0N0".

Connect

crystal

or

ceramic

cartridges

to

the

receptacle

marked

"AUX".

A

word

of

advice:

The

useful

life

of

a

phono-

graph

needle

is

quite

short,

ranging

from

15

minutes

to

several

hours.

In

addition

to

degradation

of

tone

quality

as

the

needle

wears,

the

strong

possibility

ex-

ists

that

valuable

records

will

be

damaged

if

worn

nee-

dles

are

not

promptly

replaced.

The

purchase

of

a

diamond,

which

has

very

long

life,

is

therefore

a

worth-

while

investment.

The

power

cord

of

the

turntable

may

be

plugged

into

the

auxiliary

outlet

on

the

rear

of

the

Recital

chas-

sis.

It

is

sometimes

advisable

to

ground

the

phonograph

chassis

to

the

receiver,

to

reduce

hum

or

other

un-

wanted

noises.

This

may

be

accomplished

by

the

use

of

any

type

of

wire,

one

end

connected

to

the

"G"

ter-

minal

of

the

"ANTENNA"

or

"SPEAKER"

terminal

strips,

the

other

end

connected

to

the

metal

framework

of

the

phonograph.

AUXILIARY

INPUTS

An

input

receptacle

marked

"AUX"

is

located

on

the

rear

of

the

Recital

chassis.

Any

auxiliary

equip-

ment,

such

as

a

tape

recorder

or

television tuner

may

be

connected

to

this

receptacle

and

can

then

be

played

through

the

fine

audio

system

of

the

Recital.

TAPE

RECORDING

A

receptacle

marked

"DET"

is

located

on

the

rear

of

the

Recital

chassis.

This

is

used

to

provide

output

toa

tape

recorder

or

other

auxiliary

equipment.

Any

program

material,

whether

AM

or

FM

radio,

phonograph,

etc.

,

appearing

at

the

"SPEAKER"

ter-

minals

also

appears

at

the

"DET"

receptacle,

but

un-

modified

by

the

volume

and

tone

controls.

This

makes

it

possible

to

record

programs

with

the

proper

record-

ing

equalization

(as

determined

by

your

tape

recorder).

AUTOMATIC

FREQUENCY

CONTROL

(AFC)

FM

Broadcasting,

by

its

very

nature,

eliminates

almost

all

natural

and

man-made

static.

However,

the

characteristics

of

FM

which

makes

this

possible

also

make

for

problems

in

tuning.

The

Harman-Kardon

Recital

incorporates

an

effective

Automatic

Frequency

Control

(AFC)

circuit

that

overcomes

these

problems

and

insures

proper

tuning

even

if

the

manual

tuning

is

not

accurately

done.

The

following

experiment

will

lead

to

an

understanding

of

AFC,

and

the

fuller

enjoy-

ment

of

the

Recital.

First,

tune

across

the

FM

scale.

Note

how

the

stations

"pop"

into

place,

one

after

the

other.

Now

tune

to

any

station,

preferably

one

with

a

musical

program.

Press

the

tuning

knob

in

to

defeat

the

AFC,

and

tune

slowly

through

the

station

from

left

to

right.

Notice

that

there

are

three

points

where

the

station

sounds

clean,

interspersed

with

points

of

dis-

torted

sound.

The

middle

clean

-sounding

point

is

the

proper

tuning

position

for

the

best

tone

quality

with

minimum

noise

and

interference.

Withthe

knob

pressed

in,

tune

slightly

away

from

the

proper

tuning

posi-

tion,

until

the

sound

is

distorted.

Release

the

tuning

knob

to

reactivate

the

AFC,

and

notice

how

the

sound

clears

up,

as

if

the

receiver

had

been

manually

retuned.

Actually,

the

tuning

has

been

readjusted

by

the

operation

of

the

AFC

circuit,

which

automatically

re

-

tunes

the

electronic

circuits

to

the

center

of

the

station

channel.

The

AFC

circuit

of

the

Harman-Kardon

Recital

performs

the

further

function

of

overcoming

any

ten-

dency

of

the

tuner

to

drift.

In

order

to

take

maximum

advantage

of

the

bene-

fits

of

AFC,

it

is

suggested

that

fine

tuning

be

done

with

the

knob

pressed

in,

so

that

the

center

clean

re-

sponse

point

can

be

located.

When

the

knob

is

released

Harman Kardon D200 Owners Manual - Page 2

Antenna, Connections, Power, Phonograph, Auxiliary, Inputs, Recording, Automatic, Frequency, Control

Page 2 highlights