Pioneer SF-700 Guida all'installazione

Indice

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INSTALLATION,

OPERATION

AND

SERVICE

MANUAL

Including

PARTS

LIST,

CIRCUIT

DIAGRAMS,

AND

MOUNTING

TEMPLATE

YQ

PIONEER

FEATURES

A

PROFESSIONAL

LEVEL

COMPONENT

The

SF-700

employs

specially

selected

‘low-noise”

tran-

sistors

throughout.

All

parts

are

precision-made.

There

is

no

insertion

loss

and

entirely

negligible

distortion.

PRECISE

CONTROL

There

are

3

kinds

of

cutoff

characteristics

available

to

obtain

ideal

tone,

according

to

your

speaker

systems

and

room

acoustics.

The

SF-700

gives

you

individual

output

control

for

perfect

matching

or

speakers

and

amplifier.

VERSATILITY

A

three-dimensional

system

is

possible

with

the

SF-700.

Various

crossover

frequencies

can

be

selected

for

perfect

reproduction

in

either

a

2-channel

of

3-channel

system.

EASY

TO

USE

The

panel

of

the

SF-700

has

been

carefully

laid

out

to

provide

easy-reading

controls

and

simple

operation.

7

ees

(IORCER

STEREO

SYSTEM

EXAMPLES

USING

SF-700

1.

Typical

stereo

systems

using

PIONEER

UA

series

units.

s+creo

tuner

TWEETER

(UR)

HIGH

RANGE

STEREO

POWER

AMP.

'SM-700

MID

RANGE

HIGH

jam

maria

R

oo00000

ie

4

oooo

eo

STEREO

PREAMP.

SF-700

LOW|sTEREO

POWER

AMP.

sc-700

sM-700

WOOFER

(LR)

LOW

RANGE

STEREO

POWER

AMP.

5M-700

Fig.

2

2. If

you

have

separate

stereo

preamplifier

and

stereo

power

stereo

TUNER

TWEETER

1X-700

HIGH

RANGE

(LR)

amplifiers,

arrange

your

system

referring

to

the

system

configurations

shown

in

Figs.

2

and

3.

STEREO

POWER

AMP.

‘'SM-700

goores

nic

|Low-mio

RANGE

me

oo0000

=

o-

+0000

frowbee

STEREO

PREAMP.

SF-700

STEREO

POWER

AMP.

sc-700

SM-700

Fig.

3

8.

Typical

stereo

system

using

an

amplifier

unit

containing

TWEETER

both

a

stereo

preamplifier

and

a

stereo

power

amplifier.

HiGHERANGE:

(or)

aes

STEREO

POWER

AMP.

SM-700

MID

RANGE.

a.

The

preamplifier

and

power

amplifier

sections

of

the

unit

can

be

used

separately.

In

this

case,

a

three-way

stereo

system

may

be

constructed

as

shown

at

etre

een.

miets

MID

RANGE

(LR)

+

7

‘.

0000

°

fo

right

(For

a

two-way

system,

omit

the

midrange

{°

aes

77

re

|

|

channel

).

=

STEREO

POWER

AMP.

SM-700

wooreR

cere

oureut)|

iwain

inpur)

_

(LR)

Low

RANGE

<1

St

)

PREAMP.

UNIT MAIN

AMP,

UNIT

STEREO

PRE-MAIN

AMP,

OR

STEREO

RECEIVER

%#

SW--PRE

&

MAIN

SwiTCH

Fig.

4

b.

If

the

preamplifier

and

power

amplifier

sections

of

the

unit

cannot

be

used

separately,

a

three-way

stereo

system

may

be

constructed

as

shown

at

right

(For

a

two-way

system,

omit

the

midrange

channel

).

4,

3-dimensional

system

A

3-D

stereo

system

can

be

constructed

essentially

in

the

same

way

as

explained

in

1,

2

and

3

on

the

previous

page,

except

for

the

low-channel

range

connection.

The

low-channel

output

should

be

derived

from

the

CENTER

CHANNEL

terminal

of

the

SF-700

and

connected

to

a

monophonic

power

amplifier.

A

8-D

system

does

not

require

a

stereo

power

amplifier

for

the

low-channel

range

and,

hence,

requires

only

one

woofer

in

the

system.

One

consideration

in

constructing

a

3-D

system

is

to

set

the

crossover

frequency

between

the

low

and

the

middle

channel

ranges

to

either

125

Hz

or

250

Hz,

because

the

3-D

system

makes

use

of

the

non-directional

characteristic

of

low

frequencies.

MULTICHANNEL

AMPLIFIER

SYSTEM

CONNECTIONS

PREAMPLIFIER

CONNECTION

Connect

the

INPUT

of

the

SF-700

to

the

output

jack

of

your

preamplifier.

If

your

stereo

amplifier

contains

both

a

preamplifier

and

power

amplifiers

which

can

be

used

separately,

connect

the

INPUT

of

the

SF-700

to

the

PREAMP

OUTPUT

of

the

amplifier.

Note

that

the

INPUT

jack

on

top

is

for

the

left-channel

connection,

and

that

the

one

on

the

bottom

is

for

the

right-channel

connection.

Be

sure

that

the

left

and

right-

channel

INPUT

jacks

of

the

SF-700

are

properly

connected

to

the

corresponding

channel

output

jacks

of

the

preampli-

fiers.

3

TWEETER

(OR)

HIGH

RANGE

1

a

Rec

|

MONITOR

MID

RANGE,

HIGH]

MIO

RANGE

(LR)

ss

|

ry

il

OOOO.

Low

RANGE

E

+9

STEREO

PRE-MAIN

AMP,

SA-700

Fig.

5

TWEETER

(LR)

-———

STEREO

RECEIVER

pivioING

Nate

ANGE

OR

STEREO

PRE-MAIN

AMP.

NETWORK

(LR)

a}

wooreR

(CENTER

CHANNEL)

CENTER

ans

{eo

_

|

Eel

POWER

AMP.

Fig.

6

HIGH

Si

2k

4k

6k

8k

I

kHz

Si

LEFT

IkHz

2k

4k

6k 8k

INPUT

oe)

Nas

EMITTER

'

FOLLOWER

I25Hz

250

SA

700

1000

AW

Si,

S2:--CROSSOVER

FREQUENCY

SELECTORS

S3,

Sa,

Ss,

SE---

SLOPE

SELECTORS

VR1,

VR2,

VR3er

LEVEL

CONTROLS

BRON

eet

HIGH

LEVEL

\

HIGH

RANGE

+

—fo

OUTPUT

VRi

\

‘

\

MID

-

Low

ae

MID

LEVEL

125Hz

250

500

700

1000

\

\

\

x

1

MID

RANGE

at

WS

ouTPUT

fOFF

VR2

—,

/

7

/

/

/

rs

LOW

LEVEL

/

LOW

RANGE

:

©)

OUTPUT

VR3

CENTER

CHANNEL

OUTPUT

GHT

IANNEL

ELECTORONIC

CROSSOVER

NETWORK

F-700

fa

PIONGCER

SwiTCHES

$,

CROSSOVER

FREQ,

SELECTOR

(MID-HIGH)

Sg~Se

SLOPE

SELECTOR

1)

OFF

Sp

HIGH

S__

MID“

HI

2)

thle

Se

MID-LON

S_

LOM

3)

Dele

1)

638

/ect

2)

1288/ect

CAPACITORS

3)

1bdB/oct

NONMARK

=

pF

Sq

POWER

SWITCH

P

oF

5)

ele

CROSSOVER

FREQ.

SELECTOR

(LOW-MIO)

1)

12SHe

2)

250H2

3)

500Kz

4)

T00H2

8)

Lite

5)

OFF

Papaaty

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Son,

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5

HOW

Pome

TOTAL

“lO

MAK

TOTAL

THREE-WAY

SYSTEM

CONNECTION

To

construct

a

three-way

system,

you

must

have

three

stereo

power

amplifiers,

one

each

for

the

low-,

middle-,

and

high-

channel

ranges,

and

their

corresponding

speakers

(a

woofer,

a

midrange

and

a

tweeter).

If

you

have

a

stereo

amplifier

containing

both

a

preamplifier

and

power

ampli-

fiers,

you

need

only

two

additional

stereo

power

amplifiers.

1.

Connect

the

LOW

output

jacks

of

the

SF-700

to

the

LOW

input

jacks

of

your

power

amplifier.

If

you

are

planning

to

use

the

power

amplifier

section

of

your

amplifier

for

this

purpose,

connect

the

LOW

output

jacks

of

the

SF-700

to

the

input

jacks

of

the

power

amplifier

section.

2.

Connect

the

MID

output

jacks

of

the

SF-700

to

the

MID

input

jacks

of

the

second

power

amplifier.

3.

Connect

the

HIGH

output

jacks

of

the

SF-700

to

the

HIGH

input

jacks

of

the

third

power

amplifier.

Note

that

the

LOW,

MID,

and

HIGH

output

jacks

on

the

top

are

for

the

left

channel

connections,

and

those

on

the

bottom,

for

the

right

channel

connections.

Be

sure

that

the

left-

and

right-channel

output

jacks

of

the

SF-700

are

properly

connected

to

the

corresponding

channel

input

jacks

of

your

power

amplifiers.

TWO-WAY

SYSTEM

To

construct

a

two-way

system,

you

must

have

two

stereo

power

amplifiers,

one

each

being

for

the

low-

and

high-

channel

ranges,

and

their

corresponding

speakers.

If

you

have

a

stereo

amplifier

containing

both

a

preamplifier

and

power

amplifier.

1.

Connect

the

LOW

output

jacks

of

the

SF-700

to

the

LOW

input

jacks

of

your

power

amplifier.

If

you

are

planning

to

use

the

power

amplifier

section

of

your

amplifier

for

this

purpose,

connect

the

LOW

output

jacks

of

the

SF-700

to

the

input

jacks

of

the

power

amplifier

section.

2.

Connect

the

HIGH

output

jacks

of

the

SF-700

to

the

HIGH

input

jacks

of

the

other

power

amplifier.

3-DIMENSIONAL

(3-D)

SYSTEM

1.

Connect

the

CENTER

CHANNEL

output

jack

of

the

SF-700

to

the

input

jack

of

your

power

amplifier.

2.

For

a

three-way

3-D

system,

connect

the

MID

and

HIGH

output

jacks

of

the

SF-700

to

the

corresponding

input

jacks

of

the

middle-

and

high-frequency

channel

power

amplifiers

in

the

same

way

as

explained

for

the

three-

way

system

connection.

For

a

two-way

3-D

system,

connect

only

the

HIGH

output

jacks

of

the

SF-700

to

the

input

jacks

of

the

high-frequency

channel

power

amplifier.

aFIONEER

CONNECTION

DIAGRAM

STEREO

TUNER

O*O0000

5

¢

©

0ee

STEREO

PREAMPLIFIER

TO

BE

CONNECTED

TO

GROUND

TERMINALS

OF

PREAMP.

AND

POWER

ANP.

SPEAKER

SYSTEMS

HIGH

RANGE

(TWEETER)

STEREO

POWER

AMPLIFIER

(HIGH

RANGE)

MID

RANGE

Low

RANGE

(WOOFER)

STEREO

POWER

AMPLI

(MID

RANGE)

HIGH

RANGE

(TWEETER)

STEREO

POWER

AMPLIFIER

(LOW

RANGE)

MID

RANGE

LOW

RANGE

(WOOFER)

AC

OUTLET

“=

300VA TOTAL

SWITCHED

-0-

B3OOVA

TOTAL

UNSWITCHED

CENTER

al

¥e

hal

|

FUSE

O.3A

POWER

CORD

-O-

&)

(Huw

Fig.

7

SWITCHES

AND

CONTROLS

ON

FRONT

PANEL

eae

Fee

@

POWER

Controls

power

to

the

SF-700

unit.

@

LEVEL

LOW

Controls

the

low-channel

output

level.

Turning

it

clock-

wise

will

increase

the

level,

and

turning

it

counterclock-

wise

will

decrease

the

level.

=

LOW-MID

LOW-

MID

MID—

HIGH

Selects

the

crossover

frequency

between

the

low-channel

fi

fs

fa

fo

fe

and

the

middle-channel

ranges.

Setting

this

switch

to

L

Uo

ee

OFF

will

defeat

the

function

of

this

switch

and

allow

LOW

the

MID-HIGH

switch

to

determine

the

crossover

fre-

quency

between

the

middle-channel

(including

the

low-

channel

range)

and

the

high-

channel

range.

With

this

switch

set

to

OFF,

no

output

is

present

at

the

MID

Fig.

9

output

jacks.

@

LEVEL

MID

LOW-MID

CROSSOVER

FREQUENCY

(Hz)

LEVE;

MID

MID}HIGH

LEVEL

HIGH

2k

°

ELECTRONIC

CROSSOVER

model

SF-700

=

+

SLOPE

(dB/oct)+_________

Fig.

8

Controls

the

middle-channel

output

level.

The

use

of

this

switch

is

essentially

the

same

as

that

of

LEVEL

LOW.

MID-HIGH

Selects

the

crossover

frequency

between

the

middle-

channel

and

the

high-channel

ranges.

Setting

this

switch

to

OFF

will

defeat

the

function

of

this

switch

and

allow

the

LOW-MID

switch

to

determine

the

crossover

frequency

between

the

low-channel

range

and

the

middle-channel

range

(including

the

high-

channel

range).

With

this

switch

set

to

OFF,

no

output

will

be

present

at

the

MID

output

jacks.

NOTE:

If

both

LOW-MID

and

MID-HIGH

are

set

to

OFF,

no

output

will

appear

at

any

output

jack.

_—@

LEVEL

HIGH

Controls

the

high-channel

output

level.

The

use

of

this

switch

is

essentially

the

same

as

that

of

LEVEL

LOW.

@

SLOPE

Selects

the

crossover

cut-off

characteristics

of

the

SF-700

outputs.

Each

SLOPE

switch

can

select

either

6

dB/oct.,

12

dB/oct.

and

18

dB/oct.

cut-off

characteristics.

6aB/oct

e

LOW

648

/oct

Selects

the

cut-off

characteristic

of

the

middle-channel

sail.

\

\

side

of

the

low-channel

range.

veanéet/

|

reas/oct

—

aanjct,

\

2a

e

MID.

L

zh

fi

fa

2h

Selects

the

cut-off

characteristic

of

the

low-

channel

Fig.

10

side

of

the

middle-charinel

_

range.

e

MID.

H

Selects

the

cut-off

characteristic

of

the

high-channel

side

of

the

middle-channel

range.

e

HIGH

Selects

the

cut-off

characteristic

of

the

middle-

channel

side

of

the

high-channel

range.