Dual AX440 Service Manual download pdf (Page 5)

PHONO.

AUX

KNOBS AND

SWITCHES

FRONT PANEL

POWER SWITCH

Power

is turned

when the s^ritch is rotated clockwise;

turned

off when rotated counterclockwise. Operation of this

switch also

turns

on and off the

power

supplied

to the AC

OUTLET

(3O)

located

on the rear

panel

of the SX440.

2. TUNING

INDICATOR

When

tuninq the radio receiver

to an

or AM

broadcast

station, the

TUNING

KNOB

(4)

is adjusted so that

the

pointer

this meter may deflect to the maximum.

FM STEREO

INDICATOR

When

the

SX-2140

receivesan

FM stereo

program,

this

lamp lights.

4. TUNING

KNOB

An AM

broadcasting

station is tuned in. While observing

the

pointer

of the

TUNING INDICATOR

(2),

set

the

knob

for

the best receiving condition,

SELECTOR

SWITCH

The

SX-440 is set for one of the

following

operations:

. .

Reception

AM broadcasts

MONO Reception

o{ monaural

broadcasts

STEREO

Automatically selective reception of

stereo

monaural

FM broadcbsts

. . .

Play

disk

record

Connection

of a record

player

having a crystal

or ceramic

pickup,

cartridge tape

player,

audio

output of a TV receiver.

PHONES

Cord

plug

of a

stereo

headphone is

inserted

here

for

enjoying

stereo

play

without disturbing

other

people

around.

Loudspeakers

stop

emitting sound then.

For

the stereo headphone,

PIONEER's

Model

SE-2P, SE-20,

SE-30 or SE-50 is recommended.

When

a lonqer

cord

is required

for the stereo

headphone, use

PIONEER's

Model

JB-23

extension cord separately available.

When desiring to connect two stereo headphones,

use

PIONEER's

Model JB-22

"Y"

cord

separately

available.

7. LOUDSPEAKER

ON/OFF

SWITCH

With this sruitch

in the

"ON"

position,

loudspeakers emit

sound.

When

the snritch lever is set

"OFF",

loudspeakers stop

sounding, lt

is convenient

for

using a

headphone,

LOUDSPEAKER

SELECTOR

SWITCH

When

the s^,itch is set to the

"A"

position,

the

loudspeakers

connected to

the SPEAKER SYSTEM

A TERMINALS on the

rear

panel

of the SX-440

emit sound; when set to

"8".

those

connected to

the SPEAKER SYSTEM B TERMINALS.

BASS

CONTROL

As this knob

is turned

clockwise,

bass

is boosted, as turned

counterclockwise,

attenuated. The

control

is designed to

give

flat

characteristic curve when the knob

is set

the middle sf

the rotation range.

oThis

knob

controls

the tone

quality

both

right and

left

channels

simu

ltaneously.

10.

TREBLE CONTROL

Use

of this treble control

knob

is similar to that of

the

BASS

CONTROL

KNOB

(9)

11.

MODE SWITCH

When

playing

a disk record or tape, or receiving

a broadcast

program,

keep

this

snritch

in the

"STEREO"

position.

Set

the

saritch to

"MONO"

only when

using

a monaural record

player

or tape recorder,

reproducing

a tape on which monaural

recording

made,

12.

TAPE MONITOR

SWITCH

For ordinary record

play

or radio reception,

keep

thiss^ritch

the

"OFF"

position.

Set the

svvitch to

"ON"

only

when

playing

back a tape by using

tape recorder

(or

tape

deck) or

monitoring the recording

condition

such

equipment.

the switch is

set to the

"ON"

position

when conducting disk record

play

or radio reception,

loudspeakers

not

sound.

Be careful

this respect.

13.

LOUDNESS

CONTOUR

SWITCH

When

the

switch

is set to the

"ON"

position

while

theSX-440

operated at a low

sound

volume,

both

bass

and

treble

are

boosted

for

easy listening.

When

the equipment

is operated at

high sound volume, it is

recommended

keep

the

suritch in

the

"oFF"

position.

14.

VOLUME

CONTROL

The loudspeaker sound

volume

increases

when

this

knob is turned

clockwise;

it decreases when the knob is rotated

counterclockwise,

This

double

knob

con-

sists of two component knobs interlocked

friction. When

the

knob

is turned,

both

component knobs

rotate together

to control the sound

volumes

right

and left channels simultaneously, To

adjust

the

volume of either right or left

Fis.7

RIGHT

CHANNEL

channel alone, hold one of the

component

knobs

by one

hand

and

turn the

other component

knob by

the other

hand.

lt is

convenient

for balancing the sound volumes of both channels.

The

front knob

for

the left channel and the rear

knob is

for

the right channel.

ooa't,o*

ffi

.".o^r*

/ A:i;?"-'"-

"o.,',o*

(LEFT] IRIGHT)

Fis.

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Dual AX440 Service Manual Page 5

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