Marantz 3250B Manual de usuario

Sieh

ate

MARANTZ

DESIGN

AND

SERVICE

Using

superior

design

and

selected

high

grade

components,

MARANTZ

Company

has

created

the

ultimate

stereo

sound.

Only

original

MARANTZ

parts

can

insure

that

your

MARANTZ

product

will

continue

perform

the

specifications

for

which

famous.

Parts

for

your

MARANTZ

stereo

are

generally

available

within

hours

throughout

the

nation

via

toll-free

line

our

National

Parts

Depot

California.

The

sales

professionals

who

take

yourcall

immediately

refer

their

own

desk

top

com-

puter

terminal

and

can

quickly

determine

the

availability

and

price

information

you

require.

for

some

reason,

your

order

should

exceed

our

available

stock,

usually

can

instantly

provide

alternate

replacement

part

current

delivery

infor-

mation.

When

the

order

placed

and

confirmed,

the

computer

simultaneously

generates

“hard

copy”

orders

the

distribution

center.

hard

copies

come

directly

from

the

computer

the

national

parts

depot,

your

requested

stock

assembled

and

prepared

for

shipment

and

placed

the

first

available

carrier

for

delivery

you.

ORDERING

PARTS

Phone

orders

will

eliminate

mail

delays,

and

encourage

the

use

this

method.

you

order

maii,

use

MARANTZ

parts

order

forms

which

are

available

from

our

National

Parts

Depot

located

the

following

address:

SUPERSCOPE

NATIONAL

PARTS

DEPARTMENT

20525

Nordhoff

Street

Chatsworth,

California

91311

Phone:

1-800-423-5108

1-213-998-9333

The

following

information

must

supplied

eliminate

delays

processing

your

order:

Complete

address.

Complete

part

numbers.

Complete

description

parts.

Model

number

for

which

part

required

(indicate

MARANTZ).

Account

number

(for

account

customers

only).

OWN

Direct

consumers

will

provided

with

the

current

retail

prive

quotation

available

parts

order

advise

themof

the

cost

the

parts

and

shipping.

OVERSEAS

PARTS

ORDERING

Parts

may

also

ordered

from

the

following

overseas

addresses:

CANADA

AUSTRALIA

JAPAN

Superscope

Canada,

Ltd.

Superscope

(Australasia)

Pty.,

Ltd.

Marantz

Japan,

Inc.

3710

Nashua

Drive

Cross

Street

(P.O.

Box

604)

3622

Kamitsuruma

Mississauga

Brookvale

2100

N.S.W.

Sagamihara

Shi

Ontario,

Canada

L4V1M5

Australia

Kanagawa,

Japan

EUROPE

Superscope

Europe,

S.A.

Marantz

France

Marantz

Audio

U.K.

Ltd.

Superscope

GmbH

Avenue

Leopold

III,

Rue

Louis

Armand

London

Road,

203

Max-Planck-Strasse

7120

Peronnes-Lez-Binche

92600

Asnieres

Staines

D-6072

Dreieich

Belgium

Hauts-de-Seine

Middlesex

West

Germany

France

England

All

the

above

locations

are

fully

equipped

take

care

your

total

service

needs.

Because

various

countries

differing

configuration

requirements,

necessary

that

you

contact

the

service

facility

your

particular

country.

theewent

that

there

service

location

listed

for

your

country,

please

contact

the

nearest

facility

for

the

necessary

assistance.

BRaena

weon

unl

za.

sound

better

’

——

TABLE

CONTENTS

SECTION

INTRODUCTION:

3453

feces

ade

eee

aea

BOARD

.........

Pree

wae

eee

ees

TEST

EQUIPMENT

REQUIRED

FOR

SERVICING

eee

eer

ee ee

ree

ALIGNMENT

..........

eee

VOLTAGE

CONVERSION

FOR

EUROPE

..............scececeeeseeee

BLOCK

DIAGHAM.

2.22245

bse

eae

ele

eee

TORE

ASR

eee

SCHEMATIC

DIAGRAM

.......

Ser

eee

DIAGRAM

AND

COMPORNENT

LOCATIONS

eee

ere

10.

11.

12.

8.1

SPK/Headphone

Assembly

(PW01)

Schematic

Dagan

aii

Compenant

iaetion

8.2

Pre-Amp

Assembly

(PJ01)

Schematic

Diagram

and

Component

Locations

.....

8.3

Loudness

Control

(PF01)

Schematic

Diagram

and

Component

Locations

......

8.4

Fuse

Assembly

(PP01)

Schematic

Diagram

and

Component

Locations

........

8.5

Input

Terminal

(PV01)

Schematic

Diagram

and

Component

Locations

.......

8.6

Tone

Control

Filter

(PSO01)

Schematic

Diagram

and

Component

Locations

....

EXPLODED

MECHANICAL

DIAGRAM

..........

eee

9.1

Rear

Panel

for

Europe

only

.....-

2.0

cee

eee

tee

eee

PACKING

MATERIAL

EXPLODED

VIEW

.........

cee

eee

PARTS

LIST

.........

seve

Petras

Sauna

eras

eniaeaaes

Weare

ieee

ain

eeetes

TECHNICAL

SPECIFICATIONS

gic

eerste

hes

eke one

seat

ete

PAGE

ee.

steed

satu,

tae

ae.

sanee

sae

egal

‘2x

sie

nema

Been

sigan?

Teta

microphones

tone

mode

wreath

ric

INTRODUCTION

P.W.

BOARD

This

service

manual

was

prepared

for

use

Authorized

can

seen

from

the

circuit

diagram,

the

chassis

Warranty

Stations

and

contains

service

information

for

Modei

32508

consists

following

units.

Each

unit

Marantz

Model

3250B

Stereo

Control

Console.

mounted

printed

circuit

board

described

within

the

Servicing

information

and

voltage

data

included

this

square

enclosed

bold

dotted

line

the

circuit

manual

are

intended

for

use

knowledgeable

and

diagram.

experienced

personnel

only.

All

instructions

should

read

carefully.

attempt

should

made

proceed

Tome-Amp.,

ASS'Y

......ccccecceccsssensecneees

mounted

P.W.B.PJ

without

good

understanding

circuitry

operation.

Tone

Control,

Filter

Ass’y

.....csee

mounted

PW.B.

PS 01

The

parts

list

furnishes

complete

ordering

information.

Input

Terminal

Ass’y

.........ccesseceeees

mounted

P.W.B.

PV01

Most

replacement

parts

should

ordered

from

the

Speaker/Headphone

Ass’y

.............4

mounted

P.W

.B.

PWO1

Marantz

Company.

However,

simple

description

Buse

ASS

eisccadin

tics

cvnde

doa

evnenssnvanseaans

mounted

.B.

included

for

parts

which

can

obtained

locally.

Loudness

Control

ASs’y

«...esesesesees

mounted

P.W.B.

TEST

EQUIPMENT

REQUIRED

FOR

SERVICING

Table

lists

the

test

equipment

required

for

servicing

the

Model

3250B

Stereo

Control

Console.

Distortion

Analyzer

Distortion

measurements

Audio

Oscillator

Sinewave

and

swuarewave

signal

source

VTVM

Voltage

measurements

(AC)

Sound

Technology

Model

1700B

Tektronix

Model

T932

Philips

Mode!

3232

Oscilloscope

Waveform

analysis

and

trouble

shooting

Trouble

shooting

Circuit

Tester

Fluke

Model

8000

‘‘Digital’’

Simpson

Model

313,

Triplet

Model

801

Simpson

Model

1379

VTVM

Voltage

measurements

(DC)

Monitors

primary

power

amplifier

Wattmeter

onitors

amplifier

output

under

short

Circuit

condition

Ammeter

Commercial

Grade

(1-10A)

Monitors

potential

primary

power

amplifier

Line

Voltmeter

Simpson

Model

1359

Adjusts

level

primary

power

amplifier

Superior

Electronic

Co.,

Powerstat

Mode!

116B

—10A

Use

phono

plug

with

600

ohm

across

center

and

shell

Variable

Autotransformer

Shorts

amplifier

input

eliminate

noise

Shorting

Plug

pickup

ALIGNMENT

PROCEDURES

Setthe

VOLUME

control

maximum,

and

also

BASS,

SIGNAL

INDICATOR

MID,

TREBLE

and

BALANCE

Controls

mechanical

APPLICATION

CONNECTION

center

position.

CHECK

THE

PHONO,

AUX,

TAPE

OUT,

Connect

k&§2

dummy

load

resistor

each

and

TECHNICAL

SPEC.

TAPE

PRE

OUT

channe!

PRE

OUT

jacks

the

unit.

VOLTAGE

CONVERSION

EUROPEAN

MODEL

ONLY

This

Model

equipped

with

universal

power

transform-

permit

operation

110,

120,

220

and

240V

CAUTION

50/60

Hz.

DISCONNECT

POWER

SUPPLY

CORD

FROM

convert

the

unit

the

required

voltage,

set

the

plug

OUTLET

BEFORE

CONVERTING

VOLTAGE.

iHustrated

that

you

can

adjust

the

voltage

required.

For

110V

Operation

For

120V

Operation

For

220V

Operation

For

240V

Operation

FROM

RIGHT

CHANNEL

PHONO/

MIC

RIGHT

CHANNEL

WYHOVIC

490718

AMP

TONE

AMP

PHONO

EQUALIZATION

Mic

TURNOVER

EQUALIZATION

CIRCUIT

MIC

TAPE

MONITOR

ciipwiaee

’

1|¥

out

OuT

100

kHz

©)

)

TONE

Low

HIGH

LOUDNESS

DEFEAT

FILTER FILTER

CONTOUR

eee

Pdiy

TAPE

MONITOR

((_}

CIRCUIT

TAPE

COPY

OUT

TIN

MUTING

BALANCE

LOUDNESS

VOLUME

OUT

TAPE

MONITOR

OUT

(O}

CONTOUR

TAPE

MONITOR

(Q)

LOW

FILTER

HIGH

FILTER

STEREO

CIRCUIT

AMP

REVERSE

TAPE

MONITOR

OUT

dB/Oct.

kHz

dB/Oct.

MODE

FROM

RCH.

SYSTEM

PHONO

OFF

SOURCE

TUNER

Mie

1+2

2+1

AUX

SELECTOR

TAPE

COPY

TAPE

MONITOR

mat

OFF

PRE

OUT

SPEAKERS

1-SYSTEM-2

Figure

10.

Functional

Block

Diagram

SCHEMATIC

DIAGRAM

Q451,0452

2SKK7

PJOI

PRE

AMP

ASSY.

Q453

280330

Q401~

Q404

2SA970

0405,0406

25C2240

Q407,0408

1S2471

QEOI~

QE04

2SA94I

QE05,QE06,

QE!

QEI2

2SC2088

QHOI~QHO4

25C2088

QHO5,QHOG

C452

4.7

R457

PHONO

TUNER

)

AUX

VOT

mae

JJ02

RNOD

PREOUT

$J01

$02

$v03

R4ai4

R416

6.6k

6.8%

Q405

¢}

0408

ipa

C803

100/16V

GROUND

SELECTOR

TAPE

COPY

TAPE

pceap

yen

aay

Qsol

rer

4003

QNO!

2SA564A

QNO2

2SCB828A

QNO3,QNO5,QNO7

WO6C

QNO4

WZO7I

QNOG

S247!

JPOG

JPOS

0.01/500V

jpog.

315M

For

(N)or

(A)

TYPE

Teo01

"FAW

0.033

1200/1280

|voo7

(F5)e001

Q80!

250313

802

2SB507

803,805

2SCI509

Q804,0806

2SA777

9807

WZ071

Q808

1S247!

Q809.Q8i0

SDI3Z3B

RFOS-4

100k

RFOS-

100k

CEI6

20—

CEI6

0.47

RE24

t3On

RE28

4.7k

RE33

560

Imeese

sso2-!

CS24

0.068

TONE

MODE

OKHZ

C814

8200p

390

RS28

3.9%

CS20

0.01

RS22

5.6k

CSIG

100p

Model

3250B

—

SA94]

RH27

!.8k

DIAGRAM

AND

COMPORNENT

LOCATIONS

8.2

Pre-Amp

Assembly

(PJ01)

Schematic

Diagram

and

Component

Locations

COREE

j§g=

EMER

REEED

sel

CO ei

qnemmrTers

quasar

PJOl

;

PRE

AMP

ASSY.

Mae

RE33

560

1.8k

JJ23

oi22

CEI7

20p

8.1

SPK/Headphone

Assembly

Oise

OsTi9

(PW01)

Schematic

Diagram

and

Component

Locations

C4i7

R427

R425

8..2k

REID

JJIG

JJIS

JJt4

JSJIS

Jutt

Ji2

5309

UWO4SJWOG

jJWO2

JJ25

JJ26

RE20

R426

R428

620k

6.2k

wO4

ISO

iw)

wO2

330

CEI8

20p

CEI6

0.47

JJOt

: :

ere

ESERSERE

JW0%

JWOS

JWOB

JWO3

JWOS

JWO7

JWO8

RWO2

@—-\Ws-—@

pee

aRERaESEE

rege

Sane

eaee

106

JJOS

RwO1

SWoi~1

SWO1~

[

annuus

ame

-—O

-—-0000000

O88

amen

Gwe

emma

0000000

O-~

enmma=eer

CSREES

quae

™O

0 O

000000

——

Sige

PHONO~|!

8.3

Loudness

Control

(PF01)

Schematic

Diagram

and

Component

Locations

SJOl

SJ02

aed

SELECTOR

TAPE

COPY

[

Ys080

R805

6.8%

ca0s

1000p

=!)

—saat

STD

ons

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L999

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Input

Terminal

(PV01)

Schematic

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Locat

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8.6

Tone

Control

Filter

(PSO1)

Schematic

Diagram

and

Component

Locations

[Pso1

—mmmmennys03

Te9r

F580

CETTE

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EXPLODED

MECHANICAL

DIAGRAM

9.1

Rear

Panel

for

Europe

only

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