Pioneer A-858 User manual

PIONEER’

The

future

of

sound

and

vision.

A-858

STEREO

AMPLIFIER

evarmo

aveomn

A-B58

IMPORTANT

The

lightning

flash

with

arrowhead,

within

an

equi-

lateral

triangle,

is

intended

to

alert

the

user

of

the

presence

of

uninsulated

‘dangerous

voltage”

within

the

product's

enclosure

that

may

be

of

sufficient

Magnitude

to

constitute

a

risk

of

electric

shock

to

persons.

CAUTION

RISK

OF

ELECTRIC

SHOCK

DO

NOT

OPEN

CAUTION:

TO

PREVENT

THE

RISK

OF

ELECTRIC

SHOCK,

DO

NOT

REMOVE

COVER

(OR

BACK).

NO

USER-SERVICEABLE

PARTS

INSIDE.

REFER

SERVICING

To

QUALIFIED

SERVICE

PERSONNEL.

PIOB-00999

Operating

Instructions

The

exclamation

point

within

an

equilateral

triangle

'S

intended

to

alert

the

user

of

the

presence

of

imortant

operating

and

maintenance

(servicing)

instructions

in

the

literature

accompanying

the

appliance.

2

@

‘y=

a=

|

REC

"€|

He

|

t@

2

@

Y

©

=}O9")

Shorting

bars

Barres

de

court-circuit

Uberbriickungsstecker

Barredi

corto

circuito

Kortsluitstekkevs

Kortslutningsstift

\\

\

on

(ON

Barras

de

cortocircuito

Barra

de

curto-circuito

=a)

least

(ee

Alara

WO

oo

fag

EMSAM

J

S=s

® ®

3

<ARE1

118>

Thank

you

for

buying

this

Pioneer

product.

In

some

countries

or

regions,

the

shape

of

the

power

plug

and

Please

read

through

these

operating

instructions

so

you

will

know

power

outlet

may

sometimes

differ

from

that

shown

in

the

how

to

operate

your

model

properly.

After

you

have

finished

explanatory

drawings.

However,

the

method

of

connecting

and

reading

the

instructions,

put

them

away

in

a

safe

place

for

future

operating

the

unit

is

the

same.

reference.

CONTENTS

FEATURES

cccc

ccc

ttre

t

ects

ecsccersesceesecccecs

OPERATIONS

ee

i

a i

i

ee

oi)

PANEL

FACILITIES

ese

eee

res

eee

ee

eeeeeesseeeeeeeessane

TROUBLESHOOTING

ee

CONNECTIONS

Tere

eee

ee

eee eee

eee

ee

oy

SPECIFICATIONS

es

FEATURES

e

Drive

capacity

180W

+

180W/4

Q

(DIN),

120W

+

120W/8

Q

¢

Non-Switching

Circuit

Type

Ill

is

employed

to

realize

high

quality

(DIN)

matching

to

high

power

and

low-impedance-type

speaker

sound,

with

minimum

distortion.

system.

¢

Comes

with

a

built-in

phono

equalizer

which

accepts

MC

©

The

use

of

DIRECT

circuit

assures

high

fidelity

playback

of

cartridge.

consistent

frequency

characteristics,

accompanied

by

maximum

¢

Casted

Power

Transformer

clarity.

¢

Honeycomb

Frame

Chassis

e

REC

SELECTOR

switch

makes

tape

editing

very

simple.

¢

Honeycomb

Heat

Sink

¢

Clean

ground

technology

prevents

noise

on

power

line

to

flow

to

the

signal

ground

line,

permitting

clean

sound

reproduction.

4

E

PANEL

FACILITIES

See

page

2

for

Panel

Facilities.

[FRONT

PANEL]

@

POWER

switch/indicator

Press

to

turn

power

to

the

unit

ON

and

OFF.

When

the

power

is

ON,

indicator

lights.

@

PHONES

jack

When

using

headphones,

insert

the

plug

into

this

jack.

@

SPEAKERS

selector

switch

Use

this

switch

to

listen

to

the

speaker

systems

connected

to

the

SPEAKERS

terminals.

OFF:

Released

position:

No

sound

is

heard

from

the

speaker

system.

Set

to

this

position

when

listening

with

headphones.

A:

For

reproduction

of

sound

with

the

speaker

systems

connected

to

the

SPEAKERS

A

terminals.

B:

For

reproduction

of

sound

with

the

speaker

systems

connected

to

the

SPEAKERS

B

terminals.

A+B:

For

reproduction

of

sound

with

the

speaker

systems

connected

to

SPEAKERS

A

and

B

terminals.

@

BASS

tone

control

Use

to

adjust

the

low-frequency

tone

at

low

volume

level.

The

center

position

is

the

flat

(normal)

position.

When

turned

to

the

right,

low-frequency

tones

are

emphasized;

when

turned

to

the

left,

low-frequency

tones

are

de-emphasized.

NOTE:

This

function

does

not

operate

when

the

DIRECT

switch

is

in

the

ON

position.

©

TREBLE

tone

control

Use

to

adjust

the

high-frequency

tone

at

low

volume

level.

The

center

position

is

the

flat

(normal)

position.

When

turned

to

the

right,

high-frequency

tones

are

emphasized;

when

turned

to

the

left,

high-frequency

tones

are

de-emphasized.

NOTE:

This

function

does

not

operate

when

the

DIRECT

switch

is

in

the

ON

position.

©

BALANCE

control

Should

normally

be

left

in

the

center

position.

Adjust

balance

if

the

sound

is

louder

from

one

of

the

speakers.

If

the

right

side

is

louder,

turn

toward

the

LEFT

position

and

if

the

left

side

is

louder,

turn

toward

the

RIGHT

position.

NOTE:

This

function

does

not

operate

when

the

DIRECT

switch

is

in

the

ON

position.

@

PHONO

EQ

switch/indicator

When

not

using

a

phono

input,

turn

the

phono

equalizer

power

circuit

off

in

order

to

prevent

it

from

collecting

noise

during

playback

of

other

sources.

ON:

The

indicator

lights:

Always

set

to

this

position

when

using

a

phono

input.

Immediately

after

turning

ON,

audio

signal

will

be

muted

for

several

seconds

until

circuit

operation

becomes

stable.

OFF:

The

indicator

goes

off:

Set

to

this

position

when

not

using

a

phono

input.

LOUDNESS

switch/indicator

Use

when

listening

at

low

volume

levels.

ON:

The

indicator

lights:

Boosts

low

and

high

frequencies

to

give

added

punch

to

playback

even

at

low-volume.

OFF:

The

indicator

goes

off:

Should

normally

be

left

in

this

position.

NOTE:

This

switch

does

not

operate

when

the

DIRECT

switch

is

in

the

ON

position.

©

ADPT

1/TAPE

3

switch/indicator

Use

this

switch

to

listen

to

tape

playback,

or

to

listen

to

the

sounds

being

recorded

during

tape

recording.

ON:

The

indicator

lights:

Press

when

listening

to

the

playback

sound

of

the

tape

deck

or

the

adaptor

connected

to

the

ADPT

1/TAPE

3

IN/PLAY

terminals,

or

to

monitor

the

sound

being

recorded

on

the

tape

deck

connected

to

the

ADPT

1/TAPE

3

OUT/REC

teminals.

OFF:

The

indicator

goes

off:

Normally

leave

the

switch

in

this

position.

NOTE:

When

the

DIRECT

switch

is

set

to

ON,

this

function

does

not

operate

and

no

signal

is

output

at

the

ADPT

1/TAPE

3

0UT/REC

terminals.

@

DIRECT

switch/indicator

Use

this

switch

when

you

do

not

wish

to

pass

the

output

for

input

terminal

equipment

through

the

various

frequency

adjusting

circuits

and

adaptor

terminals

(ADPT

1/TAPE

3,

ADPT

2,

BASS,

TREBLE,

BALANCE,

LOUDNESS).

ON:

When

the

switch

is

in

this

position,

the

indicator

lights

and

the

signals

input

from

the

input

terminals

are

reproduced

without

passing

through

the

various

frequency-adjusting

circuits.

This

results

in

flat,

pure

sound

which

is

a

more

faithful

reproduction

of

the

input

source.

OFF:

When

the

switch

is

in

this

position

the

indicator

goes

ou

and

the

signal

passes

through

the

various

frequency

adjusting

cirwits.

5

<AREZ

11195

E

PANEL

FACILITIES

@

PHONO

SELECTOR

switch

Set

in

accordance

with

the

type

of

cartridge

used

in

you

turntable.

MM:

Set

to

this

position

when

using

a

moving

magnet

cartridge,

or

a

MC

(moving

coil)

cartridge

with

high

output

of

1

mV

or

more.

MC:

Set

to

this

position

when

using

a

moving

coil

cartridge.

MM

SUBSONIC/MC

SUBSONIC:

Subsonic

filter

for

moving

coil

or

moving

magnet

cartridges

to

cut

ultraiow

frequency

noise

less

than

17

Hz

generated

when

playing

@

warped

record.

When

using

a

high-output

moving

coil

cartridge,

set

this

switch

to

MM

or

MM

SUBSONIC.

@

VOLUME

CONTROL

Use

to

adjust

volume

level.

NOTE:

This

unit

is

equipped

with

a

circuit

that

attenuates

the

effect

of

tone

and

loudness

controls

at

volume

is

turned

up.

@

MUTING

switch/indicator

Use

to

temporarily

cut

sound

volume.

ON:

The

indicator

lights.

The

sound

volume

will

be

cut

off.

OFF:

The

indicator

goes

off.

The

sound

will

return

to

its

@

INPUT

SELECTOR

switch

Use

to

select

playback

source,

LINE:

Set

to

this

position

when

listening

to

the

programs

from

a

component

connected

to

the

LINE

terminals.

TUNER:

Set

to

this

position

when

listening

to

AM

or

FM

broadcasts

with

a

tuner,

PHONO:

Set

to

this

position

when

listening

to

record

playback

on

a

turntable,

CD:

Set

to

this

position

when

listening

to

a

compact

disc

playback

with

a

CD

player.

DAT/TAPE

1:

For

playback

with

a

tape

deck

or

digital

audio

tape

deck

connected

to

the

DAT/TAPE

1

terminals.

TAPE

2:

For

playback

with

a

tape

deck

connected

to

the

TAPE

2

terminals.

@®

REC

SELECTOR

switch

Switch

to

select

recording

signal.

When

set

at

other

than

SOURCE

or

OFF

position,

signals

can

be

recorded

during

playback

of

the

equipment

selected

by

INPUT

SELECTOR

switch.

TUNER:

To

record

from

a

TUNER.

CD:

To

record

from

a

CD

player.

OFF:

In

this

position

nothing

from

the

REC

terminals

of

DAT/TAPE

1

and

TAPE

2

will

be

output.

Select

it

when

not

recording;

output

to

tape

decks

will

be

disconnected,

improving

sound

quality.

SOURCE:

To

record

the

equipment

selected

by

INPUT

SELECTOR

switch,

TAPE:

12

To

record

(copy)

from

the

tape

deck

of

DAT/TAPE

1

terminals,

over

to

the

tape

deck

of

TAPE

2

terminals.

21

To

record

(copy)

from

the

tape

deck

of

TAPE

2

terminals,

over

to

the

tape

deck

of

DAT/TAPE

1

terminals.

NOTE:

The

REC

SELECTOR

switch

has

no

effect

on

the

recording

out

put

of

the

ADPT

1/TAPE

3

terminals.

[REAR

PANEL]

@

TAPE

2

PLAY

terminals.

@

DAT/TAPE

1

PLAY

terminals.

@

TAPE

2

REC

terminals.

@

DAT/TAPE

1

REC

terminals.

@

SPEAKERS

B

terminals

(right

channel).

@

SPEAKERS

B

terminals

(left

channel).

@

Power

cord.

Connect

this

cord

to

an

AC

wall

socket,

or

the

AC

outlet

of

an

audio

timer.

@

SPEAKERS

A

terminals

(left

channel).

@

SPEAKERS

A

terminals

(right

channel).

6

E

@

ADPT

1/TAPE

3

OUT/REC

terminals.

@

ADPT

1/TAPE

3

IN/PLAY

terminals.

@

Shorting

bars.

@

ADPT

2

IN

terminals.

@

ADPT

2

OUT

terminals.

@

PHONO

terminals.

@

Turntable

ground

terminal!

(GND).

@

LINE

terminais.

@

TUNER

terminals.

@

CD

terminals.

CONNECTIONS

See

page

3

for

Connections.

@

CD

player.

@

Tape

decks.

@®

Speaker

system

B

(R).

@

Speaker

system

B

(L).

©

Speaker

system

A

(L).

©

Speaker

system

A

(R).

@

Tuner

Video

disc

playter,

VCR

etc...

©

Turntable.

@

Toan

AC

wall

socket.

CONNECTING

SPEAKER

CORDS

1.

Strip

off

the

vinyl

covering

and

twist

the

tip

of

the

wire

core.

®

=

Twist

the

wire

core.

2.

Loosen

the

knob

and

insert

the

wire

core

into

the

terminal

hole.

3.

Tighten

the

knob

to

fix

the

wire

core

in

place.

NOTE:

Do

not

allow

the

wire

core

to

protrude

and

touch

other

terminals

or

wires.

if

the

cores

of

different

wires

touch,

damage

may

be

caused

to

your

components.

Speaker

Impedance

When

speaker

systems

are

connected

to

only

one

of

the

SPEAKERS

A

or

B

terminals,

such

speakers

should

have

rated

impedance

in

the

range

of

4-

16Q.

When

speakers

are

connected

to

both

the

A

and

B

terminals,

they

should

have

a

rated

impedance

in

the

range

of

8

—

32.

CONNECTING

INPUT/OUTPUT

CORDS

Left

channel!

White

plug

Right

channel

@

——__U

C

Red

plug

Connect

the

white

plug

to

the

L

(left)

side,

and

the red

plug

to

the

R

(right)

side.

Be

sure

to

push

the

plugs

in

securely.

TO

USE

THE

COMPONENT

CONNECTED

TO

THE

ADAPTOR

TERMINALS

1.

Set

the

POWER

switch

to

OFF.

2.

Remove

the

two

shorting

bars

from

the

ADPT

2

terminals.

@

OUT

@'"

.

Shorting

bars.

NOTE:

Remove

the

shorting

bars

to

connect

a

graphic

equalizerto

these

terminals.

Always

keep

the

bars

inserted

while

the

terminals

are

not

in

use,

and

take

care

not

to

lose

them.

A-858

Graphic

equalizer

7

<ARE1

119>

E

OPERATIONS

BEFORE

BEGINNING

OPERATIONS

Set

the

controls

and

switches

as

follows:

See

page

2.

14.

Set

the

VOLUME

CONTROL

to

minimum.

®

2.

Set

the

POWER

switch

to

ON.

©

3.

Set

the

SPEAKERS

switch

to

A,

B

orA+B.©®

4

Set

the

BALANCE

control

to

the

center

position.

©

5.

Set

the

DIRECT

switch

to

OFF.

©

6.

Set

the

ADPT

1/TAPE

3

switch

to

OFF.

©

PLAYBACK

PROCEDURES

1.

Set

the

INPUT

SELECTOR

or

ADPT

1/TAPE

3

switch.

@,

©

How

to

select

playback

source;

«

When

listening

to

programs

from

equipment

connected

to

the

LINE

terminals:

Set

to

[LINE].

¢

When

listening

to

an

AM/FM

broadcast:

Set

to

[TUNER].

¢

When

listening

to

a

record:

Set

to

[PHONO].

PHONO

EQ

switch

to

ON.

Set

PHONO

SELECTOR

switch

to

MM

(MM

SUBSONIC)

or

MC

(MC

SUBSONIC)

according

to

the

type

of

cartridge

being

used.

e

When

listening

to

a

compact

disc:

Set

to

[CD].

¢

When

listening

to

a

tape:

Set

to

[DAT/TAPE

1],

[TAPE

2]

or

[ADPT

1/TAPE

3).

2.

Operate

the

playback

equipment.

3.

Adjust

playback

volume

with

the

VOLUME

CONTROL

on

this

unit.

@

RECORDING

TAPES

1.

Select

the

recording

source

with

REC

SELECTOR

switch.

®

e

When

set

to

the

SOURCE

position,

the

signals

from

the

device

selected

by

INPUT

SELECTOR

switch

are

recorded.

(To

record

signals

from

the

device

connected

to

the

PHONO

or

LINE

terminals,

set

the

REC

SELECTOR

switch

to

SOURCE

and

set

the

INPUT

SELECTOR

switch

to

PHONO

or

LINE.)

When

recording

the

signal

from

PHONO

terminal,

set

PHONO

EQ

switch

to

ON

position.

¢

Recording

is

impossible

with

the

switch

set

to

OFF.

NOTE:

When

this

switch

is

set

at

other

than

SOURCE

position,

the

equipment

selected

by

REC

SELECTOR

switch

can

be

recorded,

regardless

of

the

setting

of

INPUT

SELECTOR

and

DIRECT

switches.

2.

When

using

the

tape

deck

connected

to

the

ADPT

1/TAPE

3

terminals

for

recording.

The

source

selected

with

the

INPUT

SELECTOR

will

be

recorded,

regardless

of

the

REC

SELECTOR

position.

However,

recording

will

not

be

possible

when

the

DIRECT

switch

is

ON.

8

E

3.

Begin

recording

by

operating

the

source

equipment

and

tape

deck.

Refer

to

the

operating

instructions

for

your

tape

deck

for

proper

operating

procedures.

MONITORING

WHILE

RECORDING

When

recording

of

the

tuner

or

CD

only.

On

a

3-head

tape

deck,

sound

can

be

concurrently

heard

while

recording.

This

operation

of

checking

the

sound

quality

and

recording

level

is

called

“monitoring.”

At

the

time

of

monitoring,

set

the

INPUT

SELECTOR

switch

of

this

equipment

in

the

following

way,

to

match

the

tape

deck

on

which

recording

is

being

done.

e

When

recording

on

the

tape

deck

of

DAT/TAPE

1

terminals:

Set

to

DAT/TAPE

1.

¢

When

recording

on

the

tape

deck

of

TAPE

2

terminals:

Set

to

TAPE

2.

e

When

recording

on

the

tape

deck

of

ADPT

1/TAPE

3

terminalis:

ADPT

1/TAPE

3

switch

to

ON.

COPYING

TAPES

When

two

decks

(or

a

double

cassette

deck)

are

used,

you

can

record

the

sounds

from

one

deck

onto

the

other.

Application

examples:

¢

To

make

a

tape

copy

with

contents

identical

to

the

original

tape.

¢

To

edit

a

recording

of

a

radio

broadcast

in

order

to

cut

out

unwanted

commercials,

reocrding

only

desired

material

onto

another

tape.

When

using

two

tape

decks

1.

Load

tapes

for

playback

(pre-recorded

tape)

and

recording

into

the

respective

tape

decks.

2.

Select

the

tape

deck

to

be

copied

with

REC

SELECTOR

switch.

¢

When

copying

from

the

tape

deck

of

DAT/TAPE

1

terminals,

to

the

tape

deck

of

TAPE

2

terminals:

Set

to

1

B>

2.

¢

When

copying

from

the

tape

deck

of

TAPE

2

terminals,

to

the

tape

deck

of

DAT/TAPE

1

terminals:

Set

to

2

>

1.

NOTE:

The

tape

selected

with

REC

SELECTOR

switch

can

be

copied,

regardless

of

the

settings

of

INPUT

SELECTOR

and

DIRECT

switches.

3.

Operate

the

tape

decks

to

begin

copying.

Set

the

tape

deck

with

the

original

(playback)

tape

to

the

playback

mode,

and

set

the

tape

deck

with

the

blank

tape

to

the

recording

mode.

Playback

using

a

graphic

equalizer

As

to

A-858,

it

can

deal

with

playback

of

all

sources

when

connecting

a

graphic

equalizer

to

the

ADPT

2

terminals.

However,

playback

is

not

possible

when

the

DIRECT

switch

is

ON.

NOTE:

Remove

the

shorting

bars

before

using

these

terminals.

Always

keep

the

bars

inserted

while

the

terminals

are

not

in

use,

and

take

care

not

to

lose

them.

TROUBLESHOOTING

Incorrect

operations

are

often

mistaken

for

trouble

and

malfunctions.

If

you

think

that

there

is

something

wrong

with

this

component,

check

the

points

below.

Sometimes

the

trouble

may

lie

in

another

component.

Investigate

the

other

components

and

electrical

appliances

being

used.

If

the

trouble

cannot

be

rectified

even

after

exercising

the

checks

listed

below,

ask

your

nearest

PIONEER

authorized

service

center

or

your

dealer

to

carry

out

repair

work.

[—sreon

[etic

No

power

supplied

to

unit

No

sound

from

one

speaker

Can't

record

tapes

Can't

perform

tape

copying

Power

plug

is

disconnected

from

outlet.

The

component

power

plug

has

been

plugged

into

another

component

power

outlet

(e.g.

timer,

etc.),

but

power

to

that

unit

is

disconnected.

Connecting

cords

are

disconnected

from

terminals,

or

connected

incorrectly.

Terminals,

or

connecting

cords

plugs

are

dirty.

The

INPUT

SELECTOR

or

ADPT

1/TAPE

3

switch

selected

does

not

match

the

component

being

played

back.

Operation

of

other

components

is

incorrect.

The

SPEAKERS

selector

switch

is

set

to

“OFF”.

©

The

PHONO

EQ

switch

is

“OFF”

position.

¢

Shorting

bars

are

not

inserted

into

the

ADPT

2

terminals.

Connecting

cords

or

speaker

cords

are

disconnected

on

that

side.

BALANCE

control

has

been

adjusted

to

one

side.

The

position

of

the

REC

SELECTOR

switch

is

incorrect.

¢

Connections

are

incorrect.

©

Operation

of

tape

deck

is

incorrect.

The

position

of

the

REC

SELECTOR

switch

is

incorrect.

Operation

of

tape

decks

is

incorrect.

Insert

plug

securely

in

outlet.

Turn

on

power

to

the

other

component.

Connect

securely.

Clean

terminals

and

plugs.

Set

switches

correctly

(PHONO,

TUNER,

CD,

LINE,

DAT/TAPE

1,

TAPE

2).

Set

the

ADPT

1/TAPE

3

to

OFF.

Consult

the

opeating

instructions

for

the

other

components.

Set

the

switch

to

“A”,

“B”

or

“A

+

B”.

Set

PHONO

EQ

switch

to

“ON”

position.

Insert

the

shorting

bars

properly.

Connect

securely.

Adjust

BALANCE

control

to

center

position.

Set

switch

correctly.

(See

section

“RECORDING

TAPES’).

Reconnect

cords

properly.

Consult

the

operating

instructions

for

the

tape

deck.

Set

switch

correctly

(See

section

“COPYING

TAPES’).

Consult

the

operating

instructions

for

the

tape

decks,

9

E

SPECIFICATIONS

Continuous

power

output

(both

channels

driven

at

20

Hz

to

20

kHz)

**

T.H.D.

0.003%,

8

Q

Pe

ee

105W

+

105W

*

T.H.D.

0.005%,

4

QD

vv

ccc

e

ccc

ec

er

sewccenne

160W

+

160W*

DIN

continuous

power

output

(both

channels

driven)

1

KHz,

T.H.D.

1.0%,

8

Qs

eeer

reece

ree

eeee

ees

120W

+

120W

1

KHz,

T.H.D.

1.0%,

4

Q

eereereereerereeennes

180W

+

180W

Power

bandwidth

0.05%,

BQ

ccvccvsevnvnanernrencnsecesenes

5

Hz—-

60

kHz*

Damping

factor

qa

kHz/20

Hz

to

20

kHz),

8

(oer

200/70

Dynamic

power

output

(on

EIA

dynamic

test

signal)

4

Q

/2

Q

See

eee

ee

230W/350W

Total

harmonic

distortion

**

;

20

Hz

to

20

kHz,

105W,

8

Q

ceceeecrsceeeeeeenees

0.003%

*

20

Hz

to

20

KHZ,

16OW,

4

Q

srcerreereceeeeeceees

0.005%

*

Inter-modulation

distortion

(at

rated

output)

--+++++++-+

0.003%

*

Input

sensitivity/impedance

PHONO

(MM)

+++

seeecceeeeeceeeee

ec

eeeeees

2.5

mV/50

kQ

PHONO

(MC)

orrceeeeeeeeeeeeeseeeeenees

0.2

mV/100

Q

CD,

TUNER,

LINE,

TAPE+-+-++++esseereeees

150

mV/50

k

Q

PHONO

overload

level

1

kHz,

T.H.D.

0.008%

(MM/MC)

---+++-++s++-

200

mV/19

mV

Output

level/fimpedance

TAPE

REC,

ADAPTOR

OUTPUT::---------

150

mV/2.2

kQ

Frequency

response

PHONO

(MM),

20

Hz

to

20

KHz

«++++++rsseseeeees

+0.2

dB

PHONO

(MC),

20

Hz

to

20

KHZ-++++

sss

ester

reer

+0.3

dB

CD,

TUNER,

LINE,

TAPE

(1

Hz

to

150

KHz)

--:--:-

ie

dB*

Be

sure

to

place

the

unit

on

a

level

surface

so

that

it

stands

firmly

on

all

its

feet.

If

wobbly,

adjust

by

attaching

the

supplied

cushion

spacers

to

one

or

more

feet.

10

E

Tone

control

(volume

control

set

at

-40

dB

position)

BASS

is

case

sce

don

thistena'de

cae

Gea

canine

+

8

dB

(100

Hz)

TREBLE

0

tin

8

tosices

ccaiee

dec

ee

sad

ee's

oiewers

+

8

dB

(10

kHz)

MUTING

28053

Seeds

os

eek

sareilaete

ic

esisem

sed

nots

gaeeets

0

Loudness

contour

(volume

control

set

at

-40

dB

position)

Saige

p

ors.

e:8'ae.0

9850'S

v:o,0

b

Sieleineee

+5

dB

(100

Hz)/+3

dB

(10

kHz)

Filter

(SUBSONIC)-+-

+++

+e

seer

sere

serene

ee

17

Hz

(12

dB/oct.)

Signat-to-Noise

ratio

(IHF

short

circuit,

A

network)

PHONO

(MM,

5

mV

input/MC,

0.5

mV

input)

---

95

dB/77

dB*

CD,

TUNER,

LINE,

TAPE

Serre

ree

eee

ee

ees

110

dB*

Signal-to-Noise

ratio

(DIN,

continuous

power/50

mW)

PHONO

(MM)

--+eerccee

reece

tet

eter

eee

74

dB/65

dB*

CD,

TUNER,

LINE,

TAPE:--+----+

rs

eerr

reer

92

dB/68

dB

*

Power

Supply/Miscellaneous

Power

requirements

----++---++++++--

a.c,

220

Volts

~,

50/60

Hz

Power

consumption

:-+-+

sr

sesrr

cece

eect

c

reer

eee

eeeee

1,000W

Dimensions

-+-++++++eeererees

420

(W)

x

474

(D)

x

172

(H)

mm

Weight

(without

package)

+--+

ss

eeree

eet

e

eee

e

cence

eees

24.5

kg

Accessories

Operating

INStrUCTIONS

see

eee eer

tree

meee

were

n

ener

nrerenannnae

1

Cushion

spacer

set

s++rsrrecee

str

eee

crete

cece

eer

enreeeaeres

1

NOTE:

Specifications

and

design

subject

to

possible

modification

without

notice,

due

to

improvements.

*

Measured

with

the

DIRECT

switch

set

to

ON.

**

Measured

by

Audio

Spectrum

Analyzer.

POWER-CORD

CAUTION

Handle

the

power

cord

by

the

plug.

Do

not

pull

out

the

plug

by

tugging

the

cord

and

never

touch

the

power

cord

when

your

hands

are

wet

as

this

could

cause

a

short

circuit

or

electric

shock.

Do

not

place

the

unit,

a

piece

of

furniture,

etc.,

on

the

power

cord,

or

pinch

the

cord.

Never

make

a

knot

in

the

cord

or

tie

it

with

other

cords.

The

power

cords

should

be

routed

such

that

they

are

not

likely

to

be

stepped

on.

A

damaged

power

cord

can

cause

fire

or

give

you

an

electrical

shock.

Check

the

power

cord

once

in

a

while.

When

you

find

it

damaged,

ask

your

nearest

PIONEER

authorized

service

center

or

your

dealer

for

a

replacement.

.

MAINTENANCE

OF

EXTERNAL

SURFACES

*

Use

a

polishing

cloth

or

dry

cloth

to

wipe

off

dust

and

dirt.

*

When

the

surfaces

are

very

dirty,

wipe

with

a

sof

cloth

dipped

in

some

neutral

cleanser

diluted

five

or

six

times

with

water,

and

wrung

out

well,

and

then

wipe

again

with

a

dry

cloth.

Do

not

use

furniture

wax

or

cleaners.

Never

use

thinners,

benzine,

insecticide

sprays

and

other

chemicals

on

or

near

this

unit,

since

these

will

corrode

the

surfaces.

Published

by

Pioneer

Electronic

Corporation.

Copyright

©

1989

Pioneer

Electronic

Cor

poration.

All

rights

reserved.

Pioneer A-858 User manual

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