Marantz CP230 User manual

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

equinment

are

Snes

available

our

National

Marantz

subsidiary

Agent.

ORDERING

PARTS:

Parts

can

orderéd

either.

mall

telex.

mail,

fulfil

MARANTZ

order

forms.

MARANTZ

S.A.

EUROPEAN

PARTS

DEPARTMENT

(2,

Avenue

Léopola

tii.

B-7120

PERONNES-lez-BINCHE

BELGIUM.

TWX:

57589

SEPLT

both

cases,

MARANTZ

part

number

has

specified,

you

order

The

following

information

must

supplied

eliminate

delays

processing

your

order:

Complete

address

Description

parts

Way

shipment.

PARTS

ORDERING:

Complete

part

numbers

and

quantities

required

Model

number

for

which

part

required

Parts

may

ordered

fram

the

following

addresses:

MARANTZ

S.A.

326

Avenue

Louise

Bte

1050

Bruxelles

Belgium

MARANTZ

AUSTRIA

Ge.M.B.H.

Franz

Liszigasse

2380

Perchtoldsdorf

Ausiria

MARANTZ

FRANCE

Rue

Bernard

Paltssy

92600

Asniéres

France

MARANTZ

REDERLAND

&.¥.

Wagenmackersweg

3449

H.V.

Woerden

’

Netherlands

EUROPE

MARANTZ

AUDIO

U.K.

LTD

Unit

15/16

- :

Saxon

Way

!ndustrial

Estate

Moor

Lane

Harmondsworth

UB7

OLW

Great

Britain

MARANTZ

BELGIUM

‘45

Rue

Auguste

Van

Zande

-4080

Brussels

Belgium

MARANTZ

GERMANY

G.NM.B.H.

Max

Planckstrasse

6072

Dreieich

Germany|

MARANTZ

SVENSKA

A.B.

Svartviksvagsn

Traéneberg

Bromma

Sweden

Signature:

any

order

form

aeex

must

signed

otherwise

such.part

order

will

aonaideted

null

and

void.

MARANTZ

AUSTRALIA

PTY

Chard

Road

;

Brookvale,

NSW

2100,

Australia

MARANTZ

DENAAARK

Bregneredvej

132b

3460

Birkerad

Denmark

MARAMT2Z

ITALIANA

S.p.A,

Via

Monte

Napcleone

20121

Milano

ttaly

All

the

above

locations

are

fully

equipped

taxe

care

your

total

service

ned:

Because

various

countries

have

differing

configuration

requirements,

necessary

that

you:

contact

the

service

facility

your

particular

country.

{nm

the

event

that

there

service

location

listed

for

your

country,

please,

contact

the

nearest

facility

for

necessary

assistance.

case

difficulties;

not

hesitate

contact

the

Technical

Department

abovementioned

address.

‘SER

eocn

ERED:

SECTION

INTRODUCTION

‘ELECTRICAL

ADJUSTMENTS

P.W.BOARDS

........

TEST

EQUIPMENT

MECHANISM

3.1

Overload

Prote

3.2

MIC

AMP

and

3.3

Auto:

PLAY

and-

3.4

Auto

Stop.

3.5.

Pitch

Contral,

shave

Record/Playba

“Freque

4.10

Alignment.

Points

Mirae

DIAGRAMS.

eee

5.1

Block/

Level

Diagrarns,

arson

5.2

Chip

Component

Locations

5.3

Wir

Diagrams.

EXPLODED

VIEW.

AND

PARTS

LIST

ELCTRICAL

PARTS

LIS

TECHNICA’

ICA

SCHEMATIC

DIAGRAM

TABLE

CONTENTS:

cere

BWWOW

NNNNNN

;

-f

‘

Ane

amb

mete:

Pant

tte

neat

eeu

MODEL

CP230

STEREO

CASSETTE

RECORDER

INTRODUCTION.

NIE

"SERVICING

This

service

manual

are

prepared

for

use

Authorized

Warranty

Station

and...

contains

service

information

for

Marantz

Stereo

Cassette.Recorder.

Servicing

information

and

voltage

data

included

this

—

manual

are

intended

for

use

the

knowledgeable

and

ex-

‘Audio

Oscillator

(AF

osc)

perienced

technician.

only.

All

instructions

should

read

Attenuator.

{600

carefully.

attempt

should

be’

made

proceed

without

Oscilloscope

good,

understanding.

the

opeaue:

the

Cassette

;

Recorder:

woos,

Boag

The

parts

ist

furnishes

frttonttiation’

‘by:

‘which,

rebiscanene

parts

may

ordered

from,

the,

Marantz:

Company.

Asimpie

description

included

for

parts:

which

can

usually

ob-”

tained

through

local

suppliérs.

PW.

BOARDS

‘can

seen

from

the

‘circuit

diagram,

the

chassis

your

Cassette

Recorder

consists

the

following

units.

Each

unit,

mounted

on‘a

printed

circuit

board

described

Hes

vor

Tape

See

within

the

squaré

enclosed

bold

dotted

line

the

cir-

‘MTT-112

‘ 2

remerits

Output

Level

cuit

clagtar.

MIT-112B

MTT-150.

Output

Levet

ae}

P.W.

Board

P100

MTT-256

tor

Nerina

MT¥=121

MTT-4441

imounted

“Board

P700

mounted

P.W,

Board

P800

“I

motinted

.on

P.W:

Board

P900.

MECHANISM

ANDES

CIRCUIT

DESCRIPTION:

en--thi

‘adapto

possible.

that

the

volt

é@

will

exceéd

this

amoun

level

for

the.

collector

bécomes

HIGH,

setting

amo?

‘ON

’

and

causing

the

current

flow

the

setiing

QM05

ON.

exceeds

5.5

olts,.

current

flows

‘the.

basé-of:

Qimo6

“the

signal

Jevel

the

collector:

becomes:

LOW:

and

QM07.

shuts:

OFF.

‘Current

low

into:

‘QM05.:

-The

‘current

output

Vo:

‘stabilized.

‘power.

constructed

OMO04

‘and:

amos,

The:

voltage

aches.

srproximarely:

4.5:

yore

the

voltage

from

Qmo

phase

ampli

adjusti

the

amplifier,

‘When

OaB

nters

way

of:

and

-SIQF

0111,

211,

ari2and

O21

—15dB

the

level

beco

nés

HIG

circuit:

for

the

mic

‘amp

low

noise,

positive:

2and

maximum

achieved.

rewin

pressed

and

docked

in.

‘place,

the.

lock

‘releases.

counter.

reaches:

“900”

and

the

PLAY

mode

ente

When

the

tape.

has

finished

“winding:

both

‘modes,

before

the

counter

reaches

the

respective

‘positions,

‘the

AUTO"

STOP

function

and

all

buttons.

are.

released,

Also:

when

the

RE-

WIND

butto

"9997",

The’

same

_abolies

ast:

foward

‘Operation.

which

Stops

900",

Whi

counter:

‘Ts:

between:

“900'”°and

“1999""

‘bo

‘ing

utton

will

lock

welt

preésed:

‘When:

counter:

reaches:

999,

rewind

tock:

celeases-

and

the

PLAY,

ope

erence

emery

ynm

cent

eee

Trea

came

annie

Pest

ELECTRICAL.

ADJUSTMENTS

Precautions

for

Adjustment

and

Measurement

riot

place

the

test

tape

any

mea

not.

put

the

test

tape’

near,

used.

instrument,

‘the

‘eraser

Method

Demagnetization:

;

Turn.

hee

eraser

power.

switch

position.

far.

awa}

the

heads,

Bring

the

eraser

the

heads,

caps

and.

other

parts

to-

demagnetized,

and

move:

and.

down

four

o¢

five

times

to’

demagnetize.

Slowly

separate

the

eraser

far

—

away

from

the

parts,

and

twrn.the:

power.

switch

off.

not

use

any

magnetized

adjusting

tool,

necessary,

After

Lannuhene:

japent

the

slavbak

and

stop

settings

several

times

Leann

alliage

deviation.

4.2

Speed

peels

Mode:

‘Playback

meade

Frequency.

Test.

requ

Counter

SkHz

‘Line

Guiput

ies

Piay

the

316H2

‘signai

oft

thet

test

tape

MTT

256

back.

;

The

VIVM

tlio

4.4

Playback

Level

Adjustment

Adjust

the

‘Selector

Switch

‘to

)

NORMAL

and

turn

the

switch

OFF,

Play

the

test

tape

MTT-150

back;

Adjust

RIMO{L}.

and

R210(R)

that

the

voltage.

OA02

and

™

sure,

the

voltage

‘of

100mV.

this.

operation,

LINE

OUT

reads

550mV

10B.

NOTES:

Proceed

both

for

the

nic

way.

For:

details

refert

Mode:

Palyback.

; ; |

HRN

OME

Test

Tape.

YTV

MTT-150

ott

steneyeerpen

eet

Raia

4.6

Playback

Noise

Measurement

Set.

the

selector

Switch

NORMAL

and

switch

OFF.

2..

Play

back

the

blank

fape

sand

make

sure

that

the

noise

volume

below

2mV

when

the

REC

LEVEL

Knob

set

to.

both:

maximum

and

minimum.

NOTES:

sae

Perform

measurements

when

the

power

hum

mini-

mum,

aera

Perform

measurements

under

conditions

where.

induc-

tion

noise

will

not

affect

measurements.

4.7

MPX

Filter

Measurement

Adjust

the

Tape

Selector

Switch

NORMAL.

Put

the

blank

tape

the

‘cassette

holder,

and

set

the

recording

conditions.

(Dolby

“ON”,

MPX

“ON”

positions):

Add

1kHz

20dB

signal

LINE

IN.

Adjust

the

Rec.

Volume

knob

0dB

Level

Meter

reading.

Set

the

input

signal

19kHz

+10Hz.

Adjust

T101

(L)

and

T201

(R)

the

minimum

level.

Mode:

record

TONE:

1-kHz,

100mV

Line

Input

Line

Output

Record/Playback

Level

Adjustment

Set

the

tape

selector

switch

NORMAL.

Insert

the

AC-212

test

tape

the

cassette

holder

and

set

the

specified

recording

condition

(LINE

OUT:

350mV).

Adjust

R119(L)

and

R219(R)

the

same

level

the

monitoring

level

when

the

tere

played

back

after

rewinding.

;

for

CrO;/METAL

tapes,

mikes

measurements

with

the

AC-512

and

AC-711

test

tapes

described

above.

Record/Playback

Frequency

Response

Ad-

justment

[NORMAL]

“ON”

and

MPX

“OFF")

Set

the

tape

selector

switch

NORMAL

(with

Dolby

insert

the

AC-212

test

tape

the

cassette

holder

and

set

the

recording

conditions.

Attenuate

from

550mV_

25dB

Line

Out

with

the

attenuator

and:

record

AKHz

and

10KHz

unrecorded

section

the

tape.

Rewind

the

tape

and

adjust

CBO1(L)

and

“CB02(R)

that

the

level

for

1KHz

and

10KHz

brought

within

+0.5dB

for

playback.

After

making

these

adjustment,

record

and

slaybeck

1KHz,

10KHz

and

12.5KHz.

Make

sure

results

comply

with

the

following

diagram.”

“OFF”.

lOKH2z::

apart

i2SKHz

[CrO,

Set

the

tape

selector

switch

CrO,...:

Insert.

the

AC-512

test.

tape

the

cassette

holder

and

set

the

recording

conditions.

Attenuate

from

550mV

25dB:

Line

Out’

with

the

attenuator

and

record

1kHz,

.10kHz,

12.5kHz

and

Ke.

unrecorded

section

the

tape.

Rewind.

the

tape and.

adjust

CBO1(L)

and

CB02(R)

that

the

level.

for.

1kHz

and

1OKH2

brought.

within

+0.5dB

for

playback:

After

making

these

adjustments,

cord

and

playback

1kHz,

10kHz,

12.5kHz

and

15kHz.:

Make

sure

results

comply

with

the

following

diagram.

OFF”

Hz.

12,

5KHz

ISKHz

SdB

250Hz

1OKHz

12,

5KHz

eee

scape

meson

[METAL]

Adjust

the

ape

Selector

Switch

ETAL.

Load

the

test

tape

AC-711

into

cassette

holder.

Perform

_Measurements

with

CrO,,

and

make

sure

they

con-

_formwith

the

Chartinright.

NOTE:

Adjustment

points

for

NORMAL,

‘CrOz,

METAL

are

egies

PES

common

with

CBO1(L)'and

CBO2(R).

$48

;

peo

tans

Alignment

Points

eee

DIAGRAMS

5.1.

Block/Level

Diagrams

[RECORDING

MODE]

LINE

OUT

LINE

JO2

(dBV

)

(6)

[PLAYBACK

MODE]

MTT-150

400Hz

200

nwb/m

QAO!

QAO

HEAD

PHONE

LINE

AMP

RVO!

Chip

Component

Locations

wrsearvetie,

ernie

kei,

Macsitumrananetintttertensan’

Atma

cat

rsenancl

Fine

Spe,

Ry,

s,,

tdanetemenmannnaracnnanmaae

artery

EEE“

aecticatg

emer

{

nce

Nar,

—

ie,

Rosemarie

(

SSG

sata!

5.3.

Wiring

Diagram

TAPE

COUNTER

MOTOR

MO7I

RIGHT

LEFT

so7l

YEL

POWER

YEL

PLAY

SO73-2

PAUSE

S074

STOP

SO73-}

ERASE

HEAD

JH72

FF/REW

$o72

SPEAKER

NOO3

JO0O3

stp

pig

aeons

SUMIX3

JOO4

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