Harman Kardon HK680I Owners Manual - Page 6

Connecting

other

equipment

to

the

hk680i

A

pair

of

AUXILIARY

INPUTS

(45)

is

available

at

the

rear

of

the

hk680i

for

the

connection

of

any

"high

level"

output

equipment.

A

special

tuner

for

long

wave,

marine,

aircraft

or

citizen's

bands,

etc.,

may

be

connected.

Or

you

may

choose

to

connect

the

output

of

the

audio

section

of

a

television

receiver.

Any

num-

ber

of

choices

are

available.

Consult

your

audio

dealer

for

information

as

to

what

equipment

is

com-

patible

with

your

hk680i.

Connecting

speakers

Use

two

-conductor

stranded

wire

to

connect

your

speakers

to

the

receiver.

Eighteen

gauge

lamp

cord

(zip

cord)

is

satisfactory,

but

a

heavier

gauge

(16

or

14

gauge)

is

preferable,

especially

for

distances

over

25

feet.

Cut

two

segments

of

wire

long

enough

to

reach

each

speaker.

Separate

the

conductors

at

each

end

of

the

wire

segments

for

a

length

of

two

to

three

inches.

Then

carefully

remove

about

one

-quarter

inch

of

insulation

from

each

free

end.

Twist

the

strands

of

each

conductor

so

they

are

smooth

and

tight

with

no

loose

strands.

Lamp

cord

usually

provides

a

"code"

that

differ-

entiates

the

two

conductors.

A

conductor

may

be

coded

by

a

rib,

sharp

corner,

or

indentations

molded

along

the

length

of

the

insulation.

In

some

cases,

a

thin

colored

thread

is

molded

inside

the

insulation

of

each

conductor.

In

others,

one

conductor

is

darker

than

the

other,

or

the

insulation

of

each

conductor

is

of

a

different

color.

Connect

the

bare

ends

of

one

segment

of

lamp

cord

to

your

right

speaker

as

fol-

lows:

Connect

the

coded

conductor

to

the

speaker's

positive

("+")

terminal,

and

the

uncoded

conductor

to

negative

("—").

The

"+"

and

"—"

markings

are

in

gen-

eral

use,

although

some

speakers

use

other

labeling

systems,

such

as

"1"

and

"2,"

"A"

and

"B"

and

so

on.

Find

the

appropriate

row

of

speaker

connectors

on

the

receiver

marked

SPEAKER

SYSTEM

1

(50).

Push

in

on

the

red

plastic

head

of

the

connector

marked

RIGHT

to

reveal

an

opening

beneath.

Insert

the

bare

end

of

the

coded

conductor

into

the

open-

ing.

Release

the

connector.

The

conductor

should

now

be

locked

firmly

into

place.

Insert

the

uncoded

conductor

into

the

adjacent

black

connector

marked

GND.

Repeat

the

procedure

for

the

left

speaker,

taking

care

to

observe

the

coding

of

the

conductors

as

described

for

the

right

speaker.

If

the

code

is

fol

lowed

as

described,

your

speakers

will

be

connected

"in

phase",

which

is

important

for

solid

bass

and

precise

lateral

location

of

the

sound

source.

To

connect

a

second

pair

of

speakers,

repeat

the

procedure

for

the

right

and

left

speakers

of

the

second

pair,

using

the

receiver

terminals

marked

SYSTEM

2

(51).

Connecting

an

AM

antenna

A

ferrite

loopstick

type

AM

ANTENNA

(36)

is

provided

and

can

be

rotated

to

improve

reception.

If

an

external

AM

antenna

is

used,

connect

it

to

the

terminal

marked

AM

(41).

Connecting

FM

antennas

If

no

outdoor

antenna

is

avai

lable,

connect

the

lugs

of

the

dipole (supplied

with

the

unit)

to

the

FM300O,

BAL

terminals

(39)

and

(40).

The

dipole

can

then

be

tacked

or

taped

to

a

wall

or

the

back

of

a

shelf.

However,

reception

will

be

greatly

improved

if

the

receiver

is

connected

to

an

outdoor

FM

antenna

sys-

tem.

If

you

live

in

a

fringe

reception

area,

or

if

your

house

is

situated

among

obstructions

(such

as

moun-

tains

or

tall

buildings),

you

may

need

a

more

power-

ful,

directional

FM

antenna.

To

connect

30052

(ohm)

outdoor

antenna

wire,

attach

as

described

in

the

preceding

paragraph.

However,

if

your

cable

is

75

ohm,

as

is

the

case

with

many

outdoor

antennas,

it

will

be

round

with

either

two

protruding

wires

or

a

threaded

coaxial

connector.

If

the

cable

ends

in

bare

wires,

connect

the

wire

that

forms

the

outer

mesh

braid

to

the

terminal

marked

FM

7511

UNBAL

GND

(38).

Connect

the

solid,

cop-

per

-colored

wire

protruding

from

the

center

of

the

cable

to

the

FM

300Q

BAL

terminal

(39).

If

your

75O,

cable

has

a

threaded

coaxial

connector,

fasten

it

on

to

the

threaded

antenna

receptacle

(37).

AC

convenience

outlets*

Three

AC

outlets

(52)

on

the

rear

panel

of

the

hk680i

provide

power

connections

for

turntables,

tape

decks

or

other

equipment.

One

is

marked

UN

-

SWITCHED

and

provides

power

whether

the

receiver

is

turned

on

or

not.

Those

marked

SWITCHED

pro-

vide

power

only

when

the

receiver

is

turned

on.

If

you

have

completed

the

connections

above,

you

are

now

ready

to

place

the

hk680i

in

its

perma-

nent

position

and

plug

the

POWER

LINE

CORD

(53)

into

an

AC

outlet.

To

turn

the

unit

on

and

off,

press

the

POWER

switch

(2).

When

power

is

on,

the

POWER

indicator

(1)

wi

ll

light.

To

operate

your

hk680i

Speaker

selection

and

headphones

The

SPEAKER

1

(4)

and

SPEAKER

2

(5)

switches

select

the

pair

of

speakers

to

be

played.

When

either

switch

is

depressed,

the

corresponding

pair

of

speakers

is

activated.

The

front

panel

HEADPHONES

jack

(3)

accepts

headphones

for

personal

listening.

Headphones

may

be

used

simultaneously

with

speakers

if

desired.

To

play

records

Depress

the

PHONO

pushbutton

(15),

activate

your

turntable,

and

advance

the

VOLUME

control

(26)

clockwise

to

a

comfortable

level.

If

you

hear

a

hum

at

average

listening

levels,

turn

the

POWER

switch

(2)

off

and

check

to

see

that

phono

and

ground

connections

are

secure.

*In

some

countries,

owing

to

Safety

Agency

Electrical

requirements,

these

AC

receptacles

are

covered.

6

Harman Kardon HK680I Owners Manual - Page 6

countries, owing, Safety, Agency, Electrical, requirements, these, receptacles, covered.

Page 6 highlights