Harman Kardon SR900 Owners Manual - Page 8

Operation

groceclure

Every

control

on

this

receiver

serves

a

specific

useful

function

and

is

im-

portant

for

the

proper

operation

of

your

stereo

system.

It

is

important

to

note

that

under

no

circumstances

should

this

receiver

be

operated

without

either

a

speaker

or

resistive

load

across

both

the

output

terminals.

ON

/OFF

SWITCH

The

illuminated

push-button

power

switch

is

located

in

the

lower

left

hand

corner

of

the

receiver.

Depress

the

amber

button

to

turn

the

receiver

on,

Depress

again

to

turn

the

receiver

off.

When

the

receiver

is

on,

the

push-button

will

glow

softly.

TUNING

CONTROL

The

TUNING

CONTROL

is

located

directly

to

the

right

of

the

dial

glass

and

is

used

to

select

the

desired

FM

station.

TUNING

METER

The

SR900

incorporates

a

D'Arsonval

movement

tuning

meter

for

precise

tuning.

The

TUNING

METER

is

used

to

tune

to

the

center

of

the

station

channel

and

proper

tuning

is

achieved

when

you

are

on

a

station

and

the

TUNING

METER

is

at

maximum.

VOLUME

CONTROL

The

VOLUME

CONTROL

on

the

SR900

is

essentially

two

controls

in

one,

mechanically

tied

together,

to

be

operated

by

one

knob.

The

volume

control

varies

both

channels

simultaneously

and

is

used

to

adjust

the

volume

level

of

program

material

fed

into

the

stereo

system.

Its

effect

can

be

modified

by

the

special

Harman-Kardon

CONTOUR

switch.

BALANCE

CONTROL

The

nature

of

stereophonic

reproduction

is

such

that

it

requires

two

identical

channels

to

attain

the

highest

degree

of

faithfulness

and

spatial

distribution.

Any

variation

in

the

efficiency

of

one

channel

as

compared

to

the

other

will

disturb

this

relationship.

As

there

may

be

slight

differences

between

the

two

speakers,

tape

heads,

cartridge

coils,

etc.,

the

SR900

includes

a

special

control

to

balance

one

channel

against

the

other,

Sufficient

range

is

covered

by

this

control

to

permit

rebalancing

of

the

overall

system

even

in

extreme

cases

where

unbalance

exists.

It

should

be

noted

that

the

BALANCE

control

may

be

set

anywhere

within

its

range

of

adjustment

to

attain

system

balance.

BASS

AN®

TREBLE

TONE

CONTROLS

The

BASS

and

TRE13LE

tone

controls

on

the

SR900

provide

the

full

range

of

tonal

adjustment

necessary

for

stereo

high

fidelity

listening.

The

tone

control

range

is

considerable

and

can

adequately

adjust

the

low

and

high

frequencies

in

accordance

with

your

listening

preference,

speaker

characteristics

and

room

acoustics.

FUNCTION

SELECTOR

SWITCH

The

FUNCTION

SELECTOR

switch

selects

the

desired

type

of

program

source.

The

switch

on

the

SR900

has

six

switching

positions,

1.

TAPE

HD

MONO.

This

position

selects

your

tape

deck

for

monophonic

playback, and

includes

NARTB

equalization.

2.

TAPE

HD

STEREO.

This

position

selects

your

tape

deck

for

stereo-

phonic

playback

and

also

includes

NARTB

equalization.

3.

PHONO.

This

position

selects

your

record

player

(magnetic,

crystal

or

ceramic

pickup)

for

playback

and

includes

RIAA

equalization.

4.

FM

MONO/STEREOLOGIC.

This

is

the

normal

listening

position

for

all

monophonic

and

stereophonic

FM

broadcasts.

In

this

position

the

Stereo

Indicator

Light

and

the

automatic

switching

circuit

built

into

your

receiver

are

operative.

5.

FM

STEREO.

This

position

selects

FM

stereo

without

the

automatic

switching

circuit.

6.

AUX.

This

position

selects

any

high

level

equipment,

such

as

an

AM

tuner,

the

output

of

your

television

set

or

any

other

high

level

signal

which

is

connected

to

the

AUX

receptacles

on

the

rear

of

the

receiver.

Harman Kardon SR900 Owners Manual - Page 8

Mono/stereologic.

Page 8 highlights