Marantz 74ST48/01B User manual

74S

T48/018/028/05B

Synthesizer

Stereo

Tuner

TABLE

OF

CONTENTS

SECTION

PAGE

q.

TECHNICAL.

SPECIFICATIONS

inccsti

ates

iuc

htc

sarees

dennaedevecchewuclpuatdas

netakeehecsmanranens

1

BS

AAIVERVIN

GS

DIGI

sso

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seat

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inctace

ess

sh

des

aside

alel

ow

lacs

hese

avagia

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aata

ain

eos

aaa:

2

As

ETC

HCD

iG

aa

ebais

fs

eta

tes

Ses

cos

nent

et

vcncsesinen

secon

soles

hades

Gestiva

nua

dedsteieboosanannaeaamaaiendbes

3

4.

SCHEMATIC

DIAGRAMS

AND

PARTS

LOCATIONS

(COMPONENT

SIDES)

........cssssscseeeseeeeeeeees

5

5,

ADJUSTMENT

.....ccccccccccccoceccescceccesceeeeceaveccnees

eases

apt

e

eeeaeteye

ee

ca

reat

hanes)

15

6.

EXPLODED

VIEW

AND

PARTS

LIST

.o.c.ccccccccccccccscsccececccesesseccscescscecsccacsacseasaressecesevacuenenansnesetsseanaces

18

7-

ELECTRICAL

PARTS

LIST

cui

soreness

titties

eile

eds

e

ert

aoa

19

NOTES

«

PC

boards

shown

are

viewing

from

parts

side.

«

The

parts

with

no

reference

number

or

no

parts

number

in

the

exploded

views

are

not

supplied.

*

As

regards

the

resistors

and

capacitors,

refer

to

the

circuit

diagrams

contained

in

this

manual.

+

Paris

of

[]

mark

can

be

used

only

with

the

version

designated.

[GE}:GENERAL

EXPORT

[EUR]:EUROPE

[UK]:U.K

Piease

use

this

service

manual

with

referring

to

the

user

guide

(

D.F.U.

)

without

fail.

|

4822

725

5117

First

issue

:

1908/0:

PCS

98

441

|

243We855016

3t

MARANTZ

DESIGN

AND

SERVICE

_

Using

superior

design

and

selected

high

grade

components,

MARANTZ

company

has

created

the

ultimate

in

stereo

sound.

Only

original

MARANTZ

parts

can

insure

that

your

MARANTZ

product

will

continue

to

perform

to

the

specifications

for

which

_

itis

famous.

| | |

Parts

for

your

MARANTZ

equipment

are

generally

available

to

our

National

Marantz

Subsidiary

or

Agent.

ORDERING

PARTS

:

|

Parts

can

be

ordered

either

by

mail

or

by

Fax..

In

both

cases,

the

correct

part

number

has

to

be

specified.

The

following

information

must

be

supplied

to

eliminate

delays

in

processing

your

order

:

1.

Complete

address

|

2.

Complete

part

numbers

and

quantities

required

3.

Description

of

parts

4.

Model

number

for

which

part

is

required

5.

Way

of

shipment

6.

Signature

:

any

order

form

or

Fax.

must

be

Signed,

otherwise

such

part

order

will

be

considered

as

null

and

void.

USA

MARANTZ

AMERICA,

INC.

440

MEDINAH

ROAD

ROSELLE,

ILLINOIS

60172

USA

PHONE

:

630

-

307

-

3100

FAX

:

630

-

307

-

2687

CANADA

LENBROOK

INDUSTRIES

LIMITED

633

GRANITE

COURT,

PICKERING,

ONTARIO

L1W

3K1

CANADA

PHONE

:

905

-

831

-

6333

FAX

:

905

-

831

-

6936

EUROPE

/

TRADING

MARANTZ

EUROPE

B.

V.

P.O.BOX

80002

BUILDING

SFF2

5600

JB

EINDHOVEN

THE

NETHERLANDS:

PHONE

:

+31

-

40

-

2732241

FAX

:+31-40-

2735578

KOREA

MK

ENTERPRISES

LTD.

2F

SHINHAN

BLDG.,

247-17

SEQKYO-DONG

MAPO-KU,

SEOUL

KOREA

|

PHONE

:

+82

-

2-323

-

2155

FAX

:+82-2-323-2154

PROFESSIONAL

CANADA

TC

ELECTRONICS

CANADA

LTD.

540

FIRING

AVE.

BAIE

D'URFE,

QUEBEC

H9X

3T2

CANADA

PHONE

:

514

-

457

-

4044

FAX

:

514

-

457

-

5524

PROFESSIONAL

USA

SUPERSCOPE

TECHNOLOGIES,

INC.

MARANTZ

PROFESSIONAL

PRODUCTS

1000

CORPORATE

BLVD.,

SUITE

D

AURORA,

ILLINOIS

60504

USA

PHONE

:

630

-

820

-

4800

FAX

:630-820-8103.

THAILAND

MRZ

STANDARD

CO.,

LTD.

746

-

754

MAHACHAI

RD.,

WANGBURAPAPIROM,

PHRANAKORN,

BANGKOK,

10200

THAILAND

PHONE

:

+66

-

2

-

222

-

9181

FAX

:

+66

-

2

-

224

-

6795

HONG

KONG

FORWARD

INTERNATIONAL

CORP.,

LTD.

3/F.,

BLOCK-B,

WO

KEE

HONG

BLDG.,

585-609

CASTLE

PEAK

RD.,

KWAI

CHUNG,

N.T.

HONG

KONG

PHONE

:

+852

24942033

FAX

=:

+852

24101656

BRAZIL

|

MARANTZ

BRAZIL

CAIXA

POSTAL

21462

CEP

04698-970

SAO

PAULO,

SP,

BRAZIL

PHONE

:

0800

-

123123

(Discagem

Direta

Gratuita

FAX

+55

11

534.

8988

MALAYSIA

WO

KEE

HONG

ELECTRONICS

SDN.

BHD.

NO.

102

JALAN

SS

21/35,

DAMANSARA

UTAMA,

47400

PETALING

JAYA

SELANGOR

DARUL

EHSAN,

MALAYSIA

PHONE

:

+60

3-

7184666

FAX

:

+60

3

-

7173828

SINGAPORE

FORWARD

MARKETING

(S)

PTE.

LTD.

23,

LORONG

8,

TOA

PAYOH,

©

SINGAPORE

319257.

PHONE

:

+65

2583640.

FAX

:

+65

3564047

TAIWAN

PAI

-

YUING

CO.,

LTD.

6

TH

FL

NO,

148

SUNG

KIANG

ROAD,

TAIPEI,

10429,

TAIWAN

R.0.C.

AUSTRALIA

/

NEW

ZEALAND

SCAN

AUDIO

PTY.

LTD.

52

CROWN

STREET,

RICHMOND

3121

VICTORIA

;

:

AUSTRALIA

PHONE

:

+61

-

3

-

9429

-

2199

FAX

:

+61

~

3

-

9429

-

9309

PHONE

:

+886

(2)

5221304

FAX

:

+886

(2)

5630415

JAPAN

Technical

MARANTZ

JAPAN,

INC.

35-

1,

7-

CHOME,

SAGAMIONO

SAGAMIHARA

-

SHI,

KANAGAWA

JAPAN

228-8505

PHONE

:

+81

427

48

9379

FAX

:+81

427

48

0889

AA

VOLVY

®t

=

+

|

A

tt

7228-8505

#8

Fe)!

PRA

EIR

THERA

7

-

35-1

SHAR

TF

150-0022

MRRRS

RRMA

1-11-9

SHOCK,

FIRE

HAZARD

SERVICE

TEST

-

|

CAUTION

:

After

servicing

this

appliance

and

prior

to

returning

to

customer,

measure

the

resistance

between

either

primary

AC

cord

connector

pins

(

with

unit

NOT

connected

to

AC

mains

and

its

Power

switch

ON

),

and

the

face

or

Front

Panel

of

product

and

controls

and

chassis

bottom.

| |

|

Any

resistance

measurement

less

than

1

Megohms

should

cause

unit

to

be

repaired

or

corrected

before

AC

power

is

applied,

and

verified

before

it

is

return

to

the

user/customer.

:

|

Ref.

UL

Standard

NO.

1492.

In

case

of

difficulties,

do

not

hesitate

to

contact

the

Technical

Department

at

above

mentioned

address.

PCS

98

442

a

|

:

|

9802

183K

1.

TECHNICAL

SPECIFICATIONS

FM

SECTION:

7

|

Tuning

Range

....essesessseseereeseeees

sb

aletdte

dee

h

ci

acaslanede

coaten

tan

ease

aera:

87.50

MHz

-

108.00

MHz

(50

kHz

steps)

Usable

Sensitivity

(JHE)

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iets

Mono

10

dBf

50

dB

Quieting

Sensitivity

..............

Bede

tin

tesniciuess

Sha

iulaeandhectss

esaesdinama

oneness

Sone

Aas

attests

Mono

10

dBf

Stereo

33

dBf

Alternate

Channel

Selectivity

(400

KHZ)

......ccescesceseseressssessessneneensanensorsesnenessnannnaenanensneeeeneeneegeegseg

ee

eet

eT

65

dB

Image

Response

Rattio

.......eseceeees

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60

dB

Frequency

RESPONSE

.......--scscesrseeressetsecrerestenseeees

aaeiuaess

cdlecsideneatea

cess

(idsseaste

amasuetens

cluded

Sore

deastevaeielay

tance

60

dB

Capture

Ratio

.........

eee

E

aaah

tus

camps

alo

dahl

cba

kulicsee

ib

ada

e

es

woe

ener

cans

SR

(aie

esa

pons

avec

ene

ase

eeR

Ia

Eze

Ree

2

dB

Distortion

(at

65

ABE,

1

KHZ)

.....ccsscscsscecseesesstestesessesenseneenseneennscssnssssssecnnnennnsnsanyensseeeeeesne

et

eeete

ttt

te

EI

Mono

0.2%

Stereo

0.3%

Signal-to-Noise

Ratio

(at

65

ABE,

1

KHZ)

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bch

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Deis

Guludeuntunneees

same

seen

Mono

70

dB

Stereo

65

dB

AM

Suppression

Ratio

.........cscsesssssscesreesserenssvesssessnsessnenensensensenserssscsnsenacnacasanensrenseeseenseesneeses

seen

g

ee

eee

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80

dB

Stereo

Separation

(1

KHZ)

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dB

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ak

ia

SatnceReat

Hideous

page

ve

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600

mV

"M

SECTION:

|

Tuning

RANge

.sscsscsssssessecsseneccssssonsessessssessnsescsnesssssnsessessascnsocannavsouscocsaensesarannasszanecensnenssstt

522

kHz

-

1622

kHz

(9

kHz

step)

Usable

Sensitivity

..........:ceseeeereeeees

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ated

oudsbe

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beset

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55

dBm

RTE

eect

1

5

PTET

OCT

eae

ace

55

dB

(9

KHz)

Image

Response

Ratio

.......cssssccsssessnsssseeesssssssssessnscensstnssenseenconssersessenssesees

eee

sitnee

tee

e

tee

ete

eT

A

35

dB

ESTE

ITAL

COT

scxcassiis

cached

nec

ta,

ghee

emia

vote

ines

Stace

pga

ana

Sennen

nas

eee

ae

men

arr

1%

Signal-to-Noise

Ratio

.......ssccsseccsssserssesssnsessssecssessenessssennsernensvanescecernnnanancansconenaaseneesseeesenteas

aes eee

etter

eee

40

dB

(at

85

dB/m)

Output

tect

eect

le

cada

cee

nea

a

Sead

ede

ee

ana

ARS

2a

ceecadeanyeameaneean

aren

170

mV

GENERAL:

|

Power

Requirements

..........

sessanenensssneeecoanasnecersesceutaseuenenseconennossrocecensanensenege

i

ciechanehinseaienessnceemianen

een

230V

AC,

50

Hz

Power’

Come

upton:

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tints

ese

ST

6W

DIMENSIONS

(WX

HX

D)

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435

x

87

x

294

mm

AVIA

UV)

cass

cans

pcetirecans

thas

enasanenes

graves

tavos

ence

ents

es

cytes

tenet

steverenesn

ene

errr

eee

2.9

kg

Design

and

specifications

are

subject

to

change

without

notice.

RODUCT

SAFETY

NOTICE

Many

electrical

and

mechanical

parts

in

this

chassis

h

These

characteristics

are

often

passed

unnoticed

by

a

The

use

of

substitute

replacement

parts

which

do

not

have

the

same-safety

characteristics

as

§

cause

shock,

fire

or

other

hazards.

|

ave

special

safety-related

characteristics.

visual

inspection

and

the

protection

afforded

by

them

cannot

necessarily

be

obtained

by

using

replacement

components

rated

for

higher

voltage,

wattage,

efc.

Replacement

parts

which

have

these

special

safety

characteristics

are

identified

in

this

manual,

electrical

components

having

such

features

are

identified

by

the

schematic

diagrams

and

the

parts

list.

| |

Before

replacing

any

of

these

components,

read

the

parts

list

in

this

manual

carefully.

pecified

in

the

parts

list

may

ee

naemaanmie

inte

an

mumerntmerem

anit

ge

ys

anes

te

reyes

Ss

ies

ie

ee

ore

re

eet

cae

ne

oy

me

rere

woe

wnat

nemitee

pee

mite

em

ll

-

:

each

Tat

ce

tenance

ee

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2.

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DIAGRAM

C-LELLdNY

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biND

;

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OS/AGEZ

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407

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10/

ZH

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101,102

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REG

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ADv.

POST

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FILTER

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|

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|

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Fy

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H

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GF

&

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|

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RF,

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=

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CIRCUIT

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|

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115,230¥/S0H2

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DEL

SOWAL

.

SCHEMATIC

DIAGRAMS

AND

PARTS

LOCATIONS

(COMPONENT

SIDES)

ERSION

/

01

a

|

=>

|

.

LBK

o

1.8K

FEI

|

CFY

|

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=—ss

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BPFI

? |

Ben

25

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ra

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SERVICE

INFORMATION

8158

0,047

~*

Gn

x

ry

.

Resistonce

vclues

ore

indiccted

in

ohms

unless

.

w

.

;

z

ys

C187

|

2.

Copacitence

values

ore

indicoted

in

microforods

unless

SP

otherwise

specified.

(

P=micro—microferad

}

3.

All

voltege

ove

measured

with

ground.

L105

C186

DC

:

volue

with

no

signe!

BiG?

K¥12362

;

47P

AC

:

RMS

(

ot

1KHz

Bohm

toed

full

signal

)

|

.

Y

en's

4.

PRECAUTION

ele

A)

Ali

covers

shields

ond

insulotig

spocers

must

be

&

€

o

S

s

reploced

before

returning

oprliance

te

customer.

on

ie

s

l—

Ci70

dak

ene

B)

A

damaged

powse

supply

cord

must

be

repioced

470P{S)

:

@

before

returning

appiience

to

customer.

get

x

C)

Dielectric

test

should

be

done

before

returning

;

2SS~=

A

ees

O O

asplicnce

to

customer.

mEem

ToS

D)

Since

those

ports

marked

with

beer

critical

&

ek

ports

for

sofety.

Use

the

one

described

in

parts

list.

@&

|

R126

TPO2

|

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Marantz 74ST48/01B User manual

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