Marantz PM243 User manual

Using

superior

design

and

selected

high

grade

components,

MARANTZ

company

has

created

the

MARANTZ

DESIGN

AND

SERVICE

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

equipment

are

generally

available

our

National

Marantz

Subsidiary

Agent.

ORDERING

PARTS:

Parts

can

ordered

either

mail

telex.

both

cases,

correct

part

number

has

specified.

bis

TECHNICAL

ASSISTANCE

Should

you

require

any

other

technical

support,

not

MARANTZ

EUROPE

Co.

order

mail,

fulfil

MARANTZ

order

forms.

The

following

information

must

supplied

eliminate

delays

processing

your

order:

Complete

address

Jeu

iption

pars

Way

shipment

—

Complete

part

numbers

and

quanties

required

oyers

naris

Model

number:

for

which

part

required

Signature:

any

order

form

telex

must

signed.

otherwise

such

part

order

wil

considered:

null.

and.

mee

PARTS

ORDERING

__.

Parts

may

ordered

at.the

following

addresses:

AUSTRIA.

HORNYPHON

Vertriebsgeselischaft

GmbH

Wienerbergstrasse

‘

A1101

Wien

Austria,

Telex:

132.332.

EIRE

MARANTZ:

IRELAND

Ltd.

Newstead

Glonkeagh

Dublin

Telex:

25200

FINLAND

AUSTRALIA

MARANTZ

AUSTRALIA

PTY.,

itd.

Chard

Road

Brookvale,

NSW

2100

Australia’

Telex:

24121

BELGIUM

SVD

DIVISION

MARANTZ

‘

Industrialaan

1720

Groot-Biigaardan

Belgium.

Telex:

24466

CHILE

MARANTZ

DIVISION

PHILIPS

S.A.:

AV.

Santa

Maria,

0760

Casilla

2687

Santiago

Telex:

240.239

DENMARK

MARANTZ

DIVISION

PHILIPS

SERVICE

A/S

Prags

Boulevard

Postbox

1919

DK-2300

Ke@benhavn

Denmark

Telex:

31201

Telex:

529821

MARANTZ

DIVISION

PHILIPS

Kaivokatu8

;

00100

Helsinki

Finland

Telex:

124811

FRANCE

MARANTZ

FRANCE

Rue

Bernard

Palissy

92600

Asniéres

Franca

Telex:

611651

GERMANY

—

MARANTZ

GERMANY

GmbH

Max-Planck-Strasse

6072

Dreieich

Germany

THE

NETHERLANDS

MARANTZ

Limiet

4131

Vianen.

The

Netherlands

Telex:

47679

-NORWAY

MARANTZ

“

DIVISION:

PHILIPS

AIS

it,

Sandstuveien

"Oslo

Norway.

Telex:

72640.

‘GREAT

BRITAIN

MARANTZ

AUDIO

U.K.

Ltd

Unit

15/16

Saxon

Way

Industrial

Estate

Moor

Lane

Harmondsworth

UB7

OLW

Great

Britain

—

Telex:

935196.

GREECE

ADAMCO

S.A.

P.O.Box

21025

Hippocratus

Street

188

Athens

71410

—

Greece

Telex:

216.

795.

MARANT

ITALIANA

S.p.A..

Via

Monte

Napoleone

20121

Milano

Italia

JAPAN

MARANTZ

JAPAN,

Inc..

35-1,

7-chome,

Sagamiono

Sagamihara-shi,

Kanagawa

—

Japan.

~-—1-Telephone:

(02)

6407830-(1011)-—

Telex:

26602

Ignacio

iglesias

Avenue

Louise

326

Bte.

B-1050

Brussels

Belgium

hesitate

contact

the

Technical

Department

Fax.:

(02)

649.29.20

KUWAIT

“AL.ALAMIAH

ELECTRONICS

Ussama,

‘Building

._.

Fahd

Saleem

Street

P.O.Box

23781.

Safat-Kuwait

Telex:

22694

SAUDIARABIA:

it«s

"AL

ALAMIAH

ELECTRONICS

—

P.O.Box

5954:

University

Street

Riyadh

11432

Saudi

Arabia

Telex:

201530

SOUTH

AFRICA

-MARANTZ

DIVISION

PHILIPS

Rainer

House

Ove

Street,

Doornfontein

—

Johannesburg.

—

Telex:

483.456

SPAIN

PHONO

S.A.

Badalona

eareerons)

Spain

‘Telex:

§9355

—

SWEDEN

MARANTZ

DIVISION

PHILIPS

Férsaljning

Tegeluddsvagen

~§-115

Stockholm

Sweden.

iz,”

Telex:

14060

SWITZERLAND

DYNAVOX-

ELECTRONICS

Route

Villars

105

1701

Fribourg

Switzerland.

—

Telex:

942377

TURKEY.

DOGRUOL

Ltd.

1LM.C.

Blok

N°6310°

Unkapani

Istanbul

Turkey

Telex:

22085

MALTA.

CACHIA

GALEA

Republic

Street,

68D

Valetta

Telex:

1682

U.S.A.

MARANTZ

COMPANY,

inc.

National

Service.

Department:

P.O.Box

877

weg

Usa.

91317

“og

All

the

above

locations

are

fully

equipped

take

care

your

total

service

needs.

Because

various

countries

ave

differing

configuration

requirements,

necessary

that

you

contact

the

service

facility

your

particular

country.

—

the

event

that

there

service

location

listed

for

yout

country,

please,.

contact

the

nearest

facility

for

the

necessary

assistance.

199

case

difficulties,

not

Reeneie

to.

contact

the

Technical

Department

abovementioned

address.

mancanccamntz:

)

seen

noe

;

‘

oar

SYS

adege

ifn

ae?

5919

398

ety

‘

* .

Mek

tens

tate

ale

elmer

eae”

‘TABLE

CONTENTS

SECTION

PAGE

INTRODUCTION.............cceceeeeees.

ead

eee

APM

RORAOS

con

cins

sasuke

eeenanedaurueie

canta

tenance

eaeees

need

FUNCTION

EACH

PART

...

1...

ccc

eee

teen

anne

eenes

wee

eeees

TEST

EQUIPMENT

REQUIRED

FOR

SERVICING

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

uPC1270H

(0701,

0792)

POWER

AMPLIFIER

DRIVE

..........0..0cccceceeeeeeeeeeeee:

baie

NJM7815

(0801)

—

TERMINAL

CONSTANT-VOLTAGE

REGULATED

POWER

SUPPLY

eee

VOLTAGE

CONVERSION

...........

chabeace

eas

seebas

Saya

Stenicosaeetia

ane

BLOCK

DIAGRAM

............0.0000

socieatin

saa

tonee

iene

sae

bereits

SCHEMATIC

DIAGRAM

AND

COMPONENT

LOCATIONS

...........-..-.0-00--

sta

daneeaee

8.1

Main

Amp

Assembly

(P700)

Schematic

Diagram

and

Component

Locations

.........0.0ceceneoes

8.2

Indicator

Assembly

(PS00)

Schematic.

Diagram

and

Component

Locations

Sein’

fies

crate

acutaieg

eae

8.3

Connector

Assembly

(PV50)

Schematic

Diagram

and

Component

Locations

ise

argue

Ante

aselaie

8.4

16P

Connector

Assembly

(PV00)

Schematic

Diagram

and

Component

Locations

eres

eee

8.5

Power

Switch

Assembly

(PGOO)

Schematic

Diagram

and

Component

Locations

cei

etie

teases

creas

EXPLODED

VIEW

AND

PARTS

LIST

6:22.34

nuit

een

enetee

eae

nies

10.

ELECTRICAL

PARTS

LIST

...-....0ce0ceicnececccccccceecencneeaeenteccenecuceeenes

11.

TECHNICAL

SPECIFICATIONS...........20cscceccececceeeecseceeseuseesseeeeeaeenes

12..

SCHEMATIC

DIAGRAM

ici.

iSite

Veo

eee

Nea

Marge

MODEL

PM243/143

STEREO

PRE

MAIN

AMPLIFIER

#¥

oo”

gia

Ee,

SILRES

ame

SMODEL

#263

INTRODUCTION

This

service

manual

was

prepared

for

use

Authorized

Warranty

Stations

and

contains

service

information

for

the

Marantz

Model

PM243/143

Stereo

Pre

Main

Amplifier.

Servicing

information

and

voltage

data

included

this

manual

are

intended

for

use

knowledgeable

and

ex-

perienced

personnel

only.

All

instructions

should

read

carefully.

attempt

should

made

proceed

without

good

understanding

circuitry

operation.

The

parts

list

furnishes

complete

ordering

information.

Most

replacement

parts

should

ordered

from

the

Marantz

Company.

However,

simple

description

in-

cluded

for

parts

which

can

obtained

locally.

FUNCTION

EACH

PART:

(1)

TREBLE/BASS/MIDDLE

SWITCH

using

the

loudness

circuit

and

setting

the

tap

position

sch

70%,

100

and

kHz

are

boosted.

P.W.

BOARDS|

can

seen

from

the

circuit

diagram

the

chassis

Model

PM243/143

consists

the

following

units.

Each

unit

mounted

printed

circuit

board

discribed

within

the

square

enclosed

bold

dotted

line

the

circuit

diagram.

Main

Amp

.........

mounted

P.W.

Board

P700

Power

Switch.......

mounted

P.W.

Board

PGOO

Indicator..........

mounted

P.W.

Board

PSOO

16P

Connector

......

mounted

P.W.

Board

PVQOO

Connector.......

mounted

P.W.

Board

PV50

impedance

element

inserted

the

lines

the

main

arenes

achieve

boosting

the

middle

range.

100

dB,

kHz

dB,

kHz

dB.

(2)

POWER

AMPLIFIER

_For

voltage

amplifier,

monolithic

uPC1270H

covering

far

the

driving

step

used;

and

for.

the

final

step,

discrete

transistor

used,

making

the

power

amplifier.

idling

adjustment

required;

if it is

needed

according

varistor

diode’

rank,

done

changing

the

serial

resistance.

The

rank

used

for

this

unit.

(3)

MUTING/LIMITER

Muting

enabled

when

the

power

turned

ON/OFF

controlling

the

voltage

uPC1270H

(the

side

the

front

step)

with

OQNO1

—

OQNO3.

abnormal

voltage

caused

short-circuiting

the

speaker

system,

etc.,

detected

QNO6

and

ONO7

that

the

above

muting

circuit

driven

QNOS

and

ON10.

aaqt

TEST

EQUIPMENT

REQUIRED

FOR

SERVICING

This

table

lists

the

test

equipment

required

for

servicing

the

Model

PM243/

143

Stereo

Pre

Main

Amplifier.

Voltage

measurements

(AC)

_ | |

ACVTVM

—

Oscilloscone

—

Waveform

analysis

and

trouble

shooting

and

ASO

alignment

Trouble

shooting

| |

VTVM

Voltage

measurements

(DC)

Circuit

Tester

Variable

Autotransformer

140V

AC,

10A)

Adjust

level

primery

power

amplifier

Shorting

Plug

Shorts

amplifier

input

eliminate

noise

pickup

yPC1270H

(0701,

0792)

POWER

AMPLIFIER

DRIVE

uPC1270H

semiconductor

integrated

circuit

developed

Connections

for

driving

stereo

Hi-Fi

power

amplifier.

The

internal

circuits

consist

voltage

amplifying

circuit,

pinno.

Connection

pre-drive

circuit,

drive

circuit,

and

protection

circuit.

has

wai

+Vcep

(Pre

Driver

Regulator)

external

shape

12-pin

smiall-size

single

in-line

package.

eel

+Vccp

(Pre

Driver

Regulator)

MUTING

INPUT

—Veccp

(Pre

Driver

Regulator)

—Vccd

(Drive

Regulator)

LOWER

OUTPUT

UPPER

OUTPUT

cop

cep

MUTING

(FORWARD)

(ORIVER}

INVERTING

{POWER

DRIVER)

INPUT

Differentiat

Protection

INVERTING

Amplifier

Circuit

INPUT

OUTPUT

(POWER

DRIVER)

—Vecp

FREQUENCY

COMPESATION

(BIAS

cep

Wecnecros

(DRIVER

}

Mae

_—

Maximum

Ratings

(Ta

25°C)

Characteristics

;

No-Operating

Supply

Current

Storage

Temperature

+160

—*Ta=75°C

100mm

106mm

imm

Alminium

Heat

Sink

Closed

Loop

Voltage

Gain

Output

Offset

Voltage

No-Operating

Supply

Current

Maximum

Output

Voltage

Open

Loop

Voltage

Gain

Output

Noise

Voltage

Band

Width

PBW.

atio

Mute

Output

Offset

Voitage

OFF

(MUTE)

Operating

Supply

Current

Vecp

+45

—

Maaqe

NJM7815

(0801)

—

TERMINAL

CONSTANT-VOLTAGE REGULATED

POWER

SUPPLY

NJM7815

regulator

with

positive

output

terminals,

integrating

series

regulator

circuits

chip.

LOCATION.

OUTPUT

GND

INPUT

Maximum

Rating

Characteristics

Input

Voltage

}

Storage

Temperature

Operating

Temperature

Characteristics

Junction-Circumference.

Temperature

Resistance

CAN

Junction-Case

Electric

Caracteristics

Output

Voltage

Vin

23V,

0.54

14.4

15.6

Reactove

Current

—

Vin

23V,

OMA

—

6.0

Load

Reguration

AVo—lo

Vin

=.23V,

0.05~

1.54

Line

Reguration

AVo

—

Vin

17.5

30V,

0.5A

Ripple

Rejection

Ratio

RR.

Vin

23V,

ein

2Vp-p:

120Hz

Noise

Voltage

23V,

0.5A

Vin

23V,

5mA

Output

Voltage

VOLTAGE

CONVERSION

EUROPEAN

MODEL

ONLY

convert

the

unit

different

power

source

voltage,

change

the

position

illustrated

the

drawing

below.

CAUTION

DISCONNECT

POWER

SUPPLY

CORD

FROM

OUTLET

BEFORE

CONVERTING

VOLTAGE.

Voltage

Conversion

Chart

VOLTAGE

SELECTOR

Note

safety:

Symbol

Fire

electrical

shock

hazard.

Only

original

parts

| |

should

used

replace

any

part

marked

with

symbol

Any

other

component

substitution

(other

than

original

type),

may

increase

risk

fire

electrical

shock

hazard.

dee

TNE

one

BLOCK

DIAGRAM

nee

usNvads

AlddNS

YaMOd

TSNNVHD

HOVE

ONILAW

J3NNVHO

YSH.LO

MALIN

INa8YND

LINDYID

1S008

JICGIN

3NOHd

OV3H

LiNdYId

LS008

SSVa

a1dauL

LINN

YaMOd

dWY

JOVLIOA

_—_—

aes

OMA

ONIXIW

)

Sie

adNv

oIW

eee

KANO

wOa

YANNL

YO.LOANNOD

Loauia

AOVA

adv

YOLOSNNOD

L310

d9i

Ma3o2

Peaata

SCHEMATIC

DIAGRAM

AND

COMPONENT

LOCATIONS

8.1

Main

Amp

Assembly

(P700)

Schematic

Diagram

and

Component

Locations

ow’

PEE

MANS

ewe

eat

ein

eee

19@0

rosy

ONO

nner

422

—_

‘$96

ais

08/0:

;

OSE

nez

;

A922

b1Ld

(ONS

yer

20Ne

BOF

ae] kas

ASE

3089

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Pad

oct.

9INY

A0G/0i

POND

AD/O

9000°T

losoy

misOeg

voeu

(

AG#s0089

90e2

pLE-

boro

cose

(

ves

MLD

M2781

vinY

O2d

AOG/E

€

“tg

Indicator

Assembly

(PSOO)

Schematic

Diagram

and

Component

Locations

8.2

360;

“ae

RSSO

IRS3I

AS32]

RSS

560

DSO!

[OSO2

0503]

DSO4

560

This manual suits for next models

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