Marantz 74cd60 User manual

~@[fWD©@

1

~@ND©@

Service

Coll)pact disc player

74CD60/01e102e102G

/04B/04G/05B

D • •

erviceManual

®

CONTENTS

1 Explanation of the layout

2 Controls and technical specification

3 Servicing hints

4 Exploded view

5 Measurements and adjustments

6 Circuit diagrams,

power

supply, voltage adapter

7 Control & display panel

8 Wiring diagram, Voltage adapter

9 Electrical parts

11st

10

List

of

symbols

®

[illoD~@

DIGITAL

AUDIO

Safety regulations requ

ir

e

that

the

set

be restored

to

Its original

condition and that parts which are identical with those specified be

used.

Bel jedar Reparatur sind die geltenden Sicherhaitsvorschriftan zu

beachten. Der Originalzustand des Geriits

darf

nichtveriinde

rt

warden

f(ir Reparaturen sind Origlnal-Ersatzteile zu verwa~dan.

©

Veiligheidsbepalingen vereisen,

dat

hatapparaat in zijn oorspronkelljke

toestand wordt teruggebracht en dat onderdelen, identiek aan de

gespecificeerda warden toegepast.

CD

Le norma

di

sicur

ez

za esigono cha l'apparecchlo venga rimesso nalle

condizionl origlnali e cha siano utilizzati pezzl

di

rlcambiago identici a

quelli speclflcati.

Las normes

de

securite exigent qua l'appareil

soit

remis al'etatd'origlne

et

qua soient utilisfles las pieces

de

rechange identiques acallas

speciflees.

DocumentationTechniqueService Dokumentation Documentazione di Servizio Huolte-Ohje Manual

de

Servicio Manual

de

Servic;:io

Subject

to

modification

4822 725 22435

Printed

in

The Netherlands

cCopyright reserved

Pul>IIShedt>y-

COow...,.

Electronl<o

cs

23 182

www.audiodna.sk

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 it is famous.

MARANTZ INTERNATIONAL

Vestdijk 9

5600 MD Eindhoven

The Netherlands

Phone: +31/40.758290

Telefax: +31/40.75.82.99

fiarts

to~

1our MARANTZ equipment are generally

available

to

our National Marantz Subsidiary or Agent. Telex: 35000 PHTC NL routing IND NLMTFAT

ORDERING PARTS:

Parts can

be

ordered either by mail or by telex.

In

both

cases, 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 telex must be signed

otherwise such part order will

be

considered as null

and void.

PARTS ORDERING

Parts may be ordered at the following addresses:

AUSTRIA FINLAND

HORNYPHON MARANTZ

Vertriebsgesellschaft GmbH DIVISION OF

OY

PHILIPS Ab

Wienerbergstrasse 1 Kaivokatu 8

A

1101

Wien 00100 Helsinki

Austria Finland

Telex: 132.332 Telex: 124811

BELGIUM

SVD DIVISION MARANTZ

lndustrialaan 1

1720 Groot-Bijgaarden

Belgium

Telex: 24466

CHILE

MARANTZ

DIVISION OF PHILIPS S.A.

AV. Santa Maria, 0760

Casilla 2687

Santiago

Telex: 240.239

DENMARK

MARANTZ

DIVISION OF PHILIPS

SERVICE A/S

Prags Boulevard 80

Postbox 1919

DK-2300 K0benhavn S

Denmark

Telex:

31201

FRANCE

MARANTZ FRANCE

4 Rue Bernard Palissy

92600 Asnieres

France

Telex: 611651

GERMANY

MARANTZ GERMANY GmbH

Max

-Planck-Strasse 22

6072 Dreieich 1

Germany

Telex: 529821

THE NETHERLANDS

Elpro Marantz

Wint Hontlaan 28

3526

KV

Utrecht

The Netherlands

Telex: 4748

NORWAY

MARANTZ

DIVISION OF PHILIPS A/S

Sandstuveien 40

0680 Oslo 6

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

SHERTON ELECTRONICS S.A.

P.O.Box 21025

Hippocratus Street 188

Athens 11471

Greece

Telex: 216.795

JAPAN

MARANTZ JAPAN, Inc.

35-1, 7-chome, Sagamiono

Sagamihara-shi, Kanagawa

Japan

KUWAIT

AL ALAMIAH ELECTRONICS

Ussama Building

Fahd al Saleem Street

P.O.Box

23781

Safat-Kuwait

Telex: 22694

ITALY

MARANTZ ITALIANA $.P.A.

Via Chiese, 74

20126 Milano

Italy

SAUDI ARABIA

AL

ALAMIAH ELECTRONICS

P.O.

Box

5954

University Street

Riyadh 11432

Saudi Arabia

Telex: 401530

SOUTH

AFRICA

MARANTZ

DIVISION OF PHILIPS S.A.

Main Road Martindale

P.O. Box. 58088

Newville 21114

South Africa

SPAIN

PHONO S.A.

Ignacio Iglesias 10

Badalona (Barcelona)

Spain

Telex: 59355

SWEDEN

MARANTZ

DIVISION OF PHILIPS

Forsaljning AB

Tegeluddsvagen 1

S-115 84 Stockholm

Sweden

Telex: 14060

SWITZERLAND

DYNAVOX ELECTRONICS

Route de Villars 105

1701

Fribourg

Switzerland

Telex: 942377

TURKEY

DOGRUOL Ltd.

I.M.C.

6 Blok N°6310

Unkapani

Istanbul

Turkey

Telex: 22085

MALTA

CACHIA & GALEA

Republic Street, 68D

Valetta

Telex: 1682

PORTUGAL

MARANTZ

Divisao philips S.A. service

Outure!a-carnaxide

2795 LinDA-A-VELHA

Telex: 43906

All of the above locations are fully equipped

to

take

care of your total service needs. Because various countries have

differing configuration requirements, it is necessary that you contact the service facility

in

your particular country. In

the event that there is no service location listed for your country, please, contact the nearest facility for the necessary

assistance.

In

case

of

difficulties, do not hesitate

to

contact the Technical

Department at abovementioned address.

www.audiodna.sk

1-1

1. EXPLANATION OF THE LAYOUT

OF

THE

DOCUMENTATION A digit behind the page number indicates that it

concerns a supplementary page.

The documentation consists

of

chapters.

The number

of

the chapter is indicated by the first digit

of

the page number.

A replacement page is indicated by a letter behind the

page number.

Example

The second digit of the page number is the sequence

numbering. 3-6 is page 6

of

chapter 3

3-6-1

is a supplementary page behind page 3-6

If

modifications or supplements require new

supplementary

or

replacement pages, the page

number is extended with a third part:

3-6-a is the replacement page

of

page 3-6 (so

page 3-6 can

be

removed from the

documentation).

GENERAL

CHIP

SOLDER COMPONENT SOLDER

j

Ytj=rVcCOPPER

TRACK

P.C.B.

GLUE

SERVICE PACKAGE

DISMOUNTING

VACUUM PISTON

SOLDERING

~2

IRON~

e.g. WELLER

.t:~~

===

~~

SOLDER TIP PT-H7

OR

~.?~~ER~ING

SOL

DER

WICK ·

4822

321

40042

t:==~~i=dl:'.:".:~~......,~

e.g. A PAIR OF TWEEZERS

A

B

HEATIN

;n--

♦

~,<-

,:

r,~

EATING

SOLDERING IRON

SOLDER

WICK~

CL

EANING

PRECAUTIONS

C

MOUNTING

e.g.

A~WEEZERS

SOLD

ER

0 0.

5-0

.8 mm

PRESSURE

♦

SOLDERING TIME

< 3 sec/side SOLDER

00

.5 - 0.8

mm

PRESSURE

♦

EXAMPLES

SOLDERING

IRON

SOLDERING

IRON

~

0$0¢

~

~~

A

B

27

012C12

TECHNICAL SPECIFICATION

• System : Compact Disc Digital

Audio system

• Disc diameter : 120mm/80mm

• Mainsvoltages/02/05 :

110V

,

127V,220V,240V

± 10% (to

be

changed by

transformer connections)

/04 : 100 V ± 10%

/06

:117V±10%

/01

:

11

0 V, 127 V, 220 V ±

10% (to be changed by

carousel switch)

• Mains frequencies : 50,60 Hz(no adaption

required)

• Power consumption :

~20W

• Frequency range : 20

Hz+

20 kHz ±

0,1

dB

• Output voltage fixed : max. 2 V

rm/~

10 kOhms

• Output impedance

• S/N ratio

• Channel separation

• Channel difference

• Total harmonic

distortion

• Intermodulation

distortion

• De-emphasis

• Dimensions WxDxH

e Weight

I

: 200 Ohms

:

~96

dB

:

~93

dB

:

~0.2

dB

: ~

-88

dB

: ~

-88

dB

: 0

or

15/50µs (switched by

th.e subcode

on the disc)

: 454 x 118 x 288 mm

(tray closed)

: approx 7 kg

cs 23 183

www.audiodna.sk

2-1

CONTROLS

COMPACT DISC PLAYER

22

0

ill

;o

~

Q1Qt

~o

·O

-

o~

~

io

:o

0

§

~

'

i

FRONT

OF

PLAYER

""

"

~

ij

>

-<

~

,l

ANALOG

OUTPUTS

VARIABLE

►

23

<>Q

~o

N

~

"'o

...

~

oil!

~

1 Disc tray on which the

OPEN

key is situated; the tray

closes when the front is pressed briefly.

2

REMOTE

SENSOR

Receives the signals from the remote control handset.

3 DISPLAY

-Informs you about the functioning of the player.

-Displays details from the disc contents list.

4

PLAY-REPLAY(

►

)

-Starting play (PLAY)

-Returning to the beginning

of

a track (REPLAY)

5 PAUSE (II)

Interrupting play.

6

ON/OFF

Switching on and

off

.

7 RECALL

Reviewing a programme.

7a

FTS

Activating the Favourite Track Selection circuit.

8 PROGRAM

MODE

-Selecting

PROGRAM

mode when storing a

program.

-Selecting

EDIT

mode

to

enter the recording time

when making a tape recording.

Sa

TIME

.

Selecting the time information you want

to

see:

-REMAIN: The remaining playing time

of

a track.

-

TOTAL

REMAIN

: The remaining playing time

of

the

entire disc or a program.

-The elapsed playing time

of

a track.

cs 23

184

3 4 5

888888.88

5 6 7 8 9 0

PHONE

LEI/El

(l)

17

9

'1-0'

digit

keys

-Selecting another track number during play.

-Selecting a track number to start play with.

-Selecting track numbers when programming.

-Entering the recording time when making a tape

recording.

10

MEMO

-Storing track numbers

in

a program.

-Storing the recording time when making a tape

recording. '

11

CANCEL

18

MDA.02172

T28/922

-Erasing track numbers you do not wish

to

include in

a program.

-Erasing track numbers from a program.

-Erasing favourite track selections.

12

..

Fast search for a particular passage; backwards

to

the beginning of the disc.

13144 *

-Selecting another track number during play.

-Selecting a track number

to

start play with.

-Selecting track numbers when programming.

(144

from high to low; * from low

to

high).

14

PHONES BU-5

Connecting headphones.

15

STOP/CM

-Stopping play (STOP).

-Erasing a program

(CM

= Clear Memory).

16

RPT

Repeating a track, the entire disc or a program

(RPT = repeat). ·

www.audiodna.sk

17 RANDOM

Playing

in

a random order.

18

..

Fast search for a particular passage; forwards

to

the

end

of

the disc.

REMOTE CONTROL FUNCTIONS

Most

of

the controls also appear on the remote control

handset. The functions below can only

be

operated using

the remote control handset:

20AMS

Automatically playing the beginning

of

each track

(AMS

= Automatic Music Scan).

21

A-B

Storing the start and stop points of a passage to be

repeated.

22

~VOLUME.&.

Adjusting the sound level when the player is

connected via the VARIABLE-output

to

an amplifier or

HiFi system without its own remote control

(~

from

high to low;

.&.

from low to high).

23

""'-

INDEX

_,._

-Selecting another index number during play.

-Selecting an index number

to

start play with.

(

""'-

from high

to

low; _,._ from low

to

high).

24

-

AMS

TIME

+

Setting the playing time when scanning the disc.

For the best reception

of

the signals from the remote

control you should aim it as directly as possible

at

the

REMOTE SENSOR.

CONNECTIONS REAR

OF

PLAYER

-All connections

to

the rear panel should

be

made

with the power

to

the entire system switched off.

-To avoid cross-connection

of

channels, connect one

plug at a time.

25 ANALOG OUTPUTS

VARIABLE (BU-3): For connection

to

an

amplifier

of

HiFi system without its own remote control.

FIXED (BU-2 Line out L/R): For connection

to

a

MARANTZ amplifier of HiFi system with i

ts

own

remote control.

• Insert a red plug into the 'R' socket (right-hand

channel) and the other plug into the 'L' socket

(left-hand channel)

of

the VARIABLE output

or

the

FIXED output. In the case

of

connection via the

VARIABLE output, the sound level can

be

adjusted

with the

~

VOLUME

.&.

keys

on

the remote control.

• Insert the two other plugs into the corresponding

sockets

of

the

CD

or

AUX input

of

your amplifier.

You can also use the TUNER

or

TAPE

IN

connection,

but neverthe PHONO input. This is not suitable

for

Compact Disc reproduction.

26 DIGITAL OUTPUT OPTICAL BU-2-Digital out

This output supplies a digital signal via

an

optical

path; for this reason it can only be connected

to

a

Digital Analog Converter,

an

amplifier with

an

optical

digital input or a digital sound processor. For this use

an

optical lead.

To prevent dirt entering this output, it is covered with

a little cap which should only be removed when the

output is

in

use.

2-2

27 REMOTE CONTROL IN/OUT BU-2

RCS

IN/OUT

-For connecting up the equipment when you are

incorporating the player in a MARANTZ HiFi system

with its own remote control system.

For this use the

RC5

cable supplied.

-For connecting the remote control receiver RC 55,

available as

an

accessory, if the siting

of

the changer

prevents its REMOTE SENSOR from receiving the

signals from the remote control directly.

28 DIGITAL OUTPUT COAX BU-4

For digital signal processign or future applications

such

as

CD-

I.

This output supplies a digital signal and can therefore

only

be

connected to

an

input which is suitable for

this signal.

Use

here a lead with one cinch plug on

either end.

WARNING/

Never connect this socket

to

a non-digital input of an

amplifier, suvh as AUX,

CD

, TAPE, PHONO, etc. This can

damage the amplifier and the loudspeakers.

29 MAINS SOCKET

• Insertthe plug ofthe mains lead intothe Mains Socket.

• Connect the other end

to

your mains supply.

3

44

229

A11

REMOVING THE TRANSIT CLAMPS '

The two red transit clamps on the underside

of

the

player lock the player mechanism to secure it

du

ring

transportation.

Remove these transit clamps before using the player

Store them

in

the recesses provided

Refit them before transporting the player

CS·23 185

www.audiodna.sk

3-1

3. SERVICING HINTS

ESD

/A

~

All ICs and many other semi-conductors are susceptible

to

electrostatic discharges (ESD).

Careless handling during repair can drastically reduce life

expectancy.

When repairing, make sure that you are connected via a

wrist wrap with resistance

to

the same potential as the

chassis

of

the set. Keep components and aids also at

the same potential.

When the tray mechanism and COM-unit has been

disassembled the player can

be

prepared for

measurements by bridging the "tray detection" switch

SK2 on the main panel.

Service disc hold-down

The disc should always rest properly on the turntable.

To achieve this a disc

hold-down

has been mounted

in

a

bracket

of

the tray mechanism.

If the tray mechanism has to be disassembled for

servicing, a separate disc hold-down should be used. For

a service disc

hold-down

see the figure below.

Compose a service Disc hold-down in the following way.

-Cut in the most inner ring

of

a disc holddown (4822

462 50383) with small and sharp nippers

See

fig. below.

-Enlarge the diameter

of

the innermost ring slightly with

the hind part

of

a pencil

or

ballpoint, so that

it

jams

onto the turntable with sufficient force.

-If the jamming force decreases after certain time

of

use, the diameter has

to

be enlarged with a pencil

or

ballpoint again.

Explanation

of

the symbols used

[e]

= 0scilloscope (ri

;;;,,,

10

Mil)

.

~

meter (voltmeter with ri

;;;,,,

10

Mil)

e carry out alignment/adjustment

◊

= test point

SERVICE DISC-HOLDDOWN

42

565

A12

cs 23 186

SERVICE TOOLS

Audio test disc 1

Disc without errors +

disc with

DO

errors,

black spots and fingerprints

Disc (65 min, 1kHz)

without pause

Maximum diameter disc

T

orx

screwdrivers

Set (straight)

Set (square)

13th order filter

4822 397 30185

4822 397 30096

4822 397 30155

4822 397

60141

4822 395 50145

4822 395 50132

4822 395 30204

WORKING WITH THE FAULTFINDING TREE

Follow the path

of

the faultfinding tree, beginning at

the

top

left. Perform the actions you come across

in

the various blocks.

Look at the various side branches

to

find out ifthe

information you see there applies

to

your problem. If,

for instance, you find the indication display , this

means that no picture appears on the display. If you

establish this fault, follow the branch and perform the

recommended actions. Check the components

mentioned. In a number

of

branches further reference

is made

to

measurements you could carry out. These

measurements are explained in several tables further

on in this manual.

EXTENSION CABLE

LDER

0.5-0.Bmm

MDA.01671

T27/846

www.audiodna.sk

CABINE

T

OISASSEMBL

Y

HINTS

A 2

3M

I

3M

i

I

B

3M

i

I

3M

i

mdo

02137

www.audiodna.sk

'(J__

CONTRO

L+

DISP

LAy

©

PANEL

©

3MX16

3MX

16

3MX16

©

_,~

::

::~

r

::

<::::-:~

--

-- 5 :

l

_r;,l.

-"'~-tP-

©

3MX16

3MX8

©

@

3MX16

7

©

3MX

16

3MX8

©

3-2

©

3MX8

MDA.0

2140

916/T

19

EVA

,00846

916fT19

cs 22 113

www.audiodna.sk

FOIL CONNECT

ION

POSITION.

S

ER

VICE

POSITION

PLAY

CO-DISC.

OM

~J

~rn

~

cs

23

187

E

VA

.00849

916fT19

PLAY-

SERVICE

POSITION

3-3

EVA.

00848

916(T19

ME

ASURING

AND

ADJUSTMENT

POSITION

OF

THE

SET

S

ERV

O+

DECODER

PANEL

-

....._

MDA.02138

916/T19

3-3

MECHANICAi

200 4822 21

201

4822 4f:

201

4822 4f:

202

48224.:

202 4822

4l

202 4822

4,::

202 4822

4l

203 4822

4E

203 4822

4E

204 4822

4E

204 4822

4E

204 4822 4E

205

4822 41

205 4822

4~

206 4822

4E

206 4822

4E

206 4822

4E

207 4822

4,

207 4822

4E

208 4822

3~

209 4822

3=

210 4822

4~

211

4822

3:

211

4822

3:

212 4822

4E

212 4822

4E

213 4822

4C

213 4822

4C

214 4822

4~

216 4822 41

217 4822 4•

218 4822

3:

219 4822

41

219 4822

41

221 4822

41

221

4822

41

221

4822

41

222 4822

41

222 4822

41

www.audiodna.sk

3-3

MECHANICAL PARTS

200 4822 218 10273 only for

/01

/02/04/05 223 4822 460

20

657

on

ly for /02G/

04G

200 4822 218 10297 only for /06 223 4822 460 20766 only for /04B

201

4822 459 10887 only for /06 225 4822

321

22603

201 4822 459 10747 only for /01/02/04 227 4822 410 50169

202 4822 444 40321

FRONT

ASSY

only for

/01

B/02B/05B 227 4822 410 50169

202 4822 444 40322

FRONT

ASSY

only for /02G/04G 227 48

22

410 50169

202 4822 444 40308

FRONT

ASSY

only

for /04B 227 48

22

410 50169

202 4822 444 40328

FRONT

ASSY

only for /06B 228

48

22

410 60202 only for

/01

B/02B/05B

203 4822 450 61444

WINDOW

only for /06B 228 4822 410 60273 only for /02G/04G

203 4822 450 61358

WINDOW

only for /01/02/04 228 4822 410 60115 only for /04B

204 4822 460 20769

ORN.

PROFILE

only for /04B 228 48

22

410 60305 only for /068

204 4822 460 20772

only

for

/01

B/02B/05B/06B 229 4822 410 60118

204 4822 460 20776

ORN.

PROFILE

only for /02G/04G

231

4822 410 60116 only for

/01

/02/04/05

205 4822

411

20337

VOLUME

KNOB

only for /02G/04G 231 4822 410 60303 only for /06

205 4822 410 60119 only for

/01

B/02B/04B/06B 232 4822 505 10571

M12

X 1

206 4822 460 20771 only for

/01

B/02B/05B/06B 233 4

82

2 532 51756

206 4822 460 20768 only for /04B 234 4822 358 10115

206 4822 460 20775 only for /02G/04G 235 4822 5

30

80503

207 4822 444 40323 only for /02G/04G 236 4822 3

25

501

76

207 4822 460 20764 only for /04B 237 4822 466 92251

208 4822

321

10457

CORD

SET

only for /01/02 238 4

82

2 528 906

38

209 4822

321

10522

CORD

SET

only for /05 239 4822 492 52094

210 4822 492 61974

241

4822 4

02

61252

211

4822

321

10445

CORD

SET

on

ly tor /06 242 4822 402 50276

211 4822

321

10492

CORD

SET

only for /04 243 4822 3

23

2

01

82

212 4822 460 20774 only for /02G/04G 244 4822

27

6 3

04

04 only for

/01

B/02B/05B

212 4822 460 20767

on

ly

for /04B

24

4 4822 410 60274 only for /02G/04G

213 4822 402 61297

POWER

ROD

only for /02G/04G 244 4822 276 30403 only for /04B

213 4822 402 61255

on

ly for

/01

B/02B/04B/068 244 4822 410 60304 only for /06B

214 4822 450 61362 246 4822 444 60568

216 4822 402 50277

24

7 4822 466

92

257

217 4822 444 50603 248 4822 402 61207

218 4822 325 50177 249 4822 520 40177

219 4822 464 50773 only for

/01

B/02B/05B/06B

251

4822

691

30209 CDM-4 complete

219 4822 464 50764 only for /02G/04B/04G 252 4822 402 61253

221 4822 402 61266 only for

/01

B/02B/05B 253 4822 528 81329

221 4822 402 61254 only for 02G/04B/04G 254 4822 492 51

90

2

221 4822 402 61303 only for /06B 256 4822 466 61

58

7

222 4822 460 20773 only for /02G/04G 257 4822 492

51

93

5

222 4822 460 20763 only for /04B 258 4822 256

30

274

FUSE

HOLDER

259 4822 492 328

83

261

4822 528 90

63

9

262 4822

361

20998

263 4822 402 61196

264 4822

53

5 92907

www.audiodna.sk

~----

212

213

~--201

202

----,

203

207

205

210

_

___/

208

---"""\

211

225

200

-

227

2

231

5

./

551

232

233

2

239

552

EADPHONE

PANEL

241

---

242

----------

I

8564

I

~565

_.,,,,,.,.

3MX16

-·

.,,,,,.,.

3MX16

'-------

261

~--

262

J:l,...___j__~----

263

568

~ - r-;_

• I

'---.I

5MX40

• 2

VARIABLE

LINE

OUT

264

CAUTION

INVISIBLE

LASER

RADIATION

WHEN

OPEN

.

DO

NOT

STARE

INTO

BEAM

EVA.00835

T10/921

.

310•

106

7S9•2

556

4-1

cs

23 188

www.audiodna.sk

MEASUREMENTS AND ADJUSTMENTS

TROUBLE

SHOOTING (FAULT

FINDING

TREE)

Follow

the

path

of

the fauttfinding tree beginning

at

the

top left. Perform the actions

you

come across in the

various blocks.

If

you

establish

this

fault,

follow

the

branch and

perform

the recommended actions. Check the signals mentioned.

In a number

of

branches further reference

is

made

to

measurements you could

carry

out.

Look

at

the vark>us

side

branches

to

find

out

if the

information you see

there

applies

to

your problem. If,

for

START-UP

PROCEDURE

instance, you find the indication

...

-Jitsptaf-:~

this means

that

no

picture appears on the display.

These measurements

are

explained in several tables

further

on

in

this

manual.

SKI

FUSE

TRANSfORMEA

FUSE

MANS

TRANSFORMER

VOLTAGE

ADAPTER

+15

-15

+10

+

58

+5

-6

-68

-10

DISPLAY

OAIVER

""

SIGNAlS

VFTO

A-2

LOAD

I

DISC

CUCK

&

POPS

I

"vi

\wNs

""2

JRAFo

6519

6542

6543

6544

6545

6551

6652

KU

=Cf'CUT

6555

6556

6557

6558

6559

6568

IAr

s-r-G----.;.A

...

y'-----A

...

r----'-A

-

..

r-------'-A'9r;;_-

__

.....;.A·r;_

,TMY

I'

~!:.

,~~

~):

~

f-

OFF OFF

OFF

RCS

RECEIVER

TRAY

MECHANISM

C§J

6527

BELT

6526

TRAY

MOTOR

8 C D

6530

TRAY

SwrTCH

SK2

TRANSPORT

SCREWS

REMOVED?

M

-N

EYE

PATTERN (H=I)

M-OOT

n:

SEE:

CHECK--QF

ANGLE

DISC-IJGHWAlH

LENS

DISC

INlERMl'TTENT

SERVICE

POSl110N

0 B

-3

1lE

PHOTOOK>OES

C L

OAD

TEST

DISC

5

LO

AO

TEST

DISC

5A

LOAO

TEST

DISC

IkHz

cs

23

189

--l}

B-1 B- 1

STOP/CM

+

Pl.AV

+

POWER

ON

l«,CH»I

~y

,

1>',

~

SERVICE

POSITION

0

--l}

STOP/CM

+

PU\Y

+

POWER

ON

Pl.AV

SEARCH»

R

«SEARCH

F

ARM

FRICTION

FLEX

FOL

00

...

83

F1ADW.

MOTOR

1

IC

--l}

SERVICE

POSITION

0

0-1

000S

ORA

OCL

OCA

SWAB

SCAB

SOAB

*

--l}

SERVlCE POSITION 1

0-2

WSAB

CLAS

0MB

0ABO

MUTE

M\JS8

6541

KILL

6542

6543

6544

6545

SER\/ICE

POSITION

0

STOP/CM *

--l}

+

Pl.AV

+

POWER

ON

SERVICE

POSITION

1

SERVtCE

POSl110N

0

--l}

....

8-5

~"'

....

~

- I -

;~~

- I -

650

1

..

6502 FLEXFOL

~O~&:;,K

3504

FE

LAG

FLEXFOl.

FE

5'/RD

6500

I LO

6504

LM

3565

FLEXFOIL

LASEROIOOE

FOOJSMOTOR

LENS

CLEAN?

IC

--l}

SERVICE

POSlTIO\I

1

SERVICE

POSITION

2

* *

--l}

SERVICE

POSITION

2

SERVtCE

POSITION

3

SEE

:

CHECK

OF

nE

LASER

SUPPLY

ANO

CURRENT

AO.IJSTMENT

SEE

AIWSTMENT

OF

FOCUS

C-2

PREVENT

SKATl<G

OFFSET

IF

SKATING

THEN

~-

I

OF

THE

RADIAL

ARM

SPEEO

0-3

'

ttj

L

, I

6535

WSBO

6541

I

ZERO

TURNTABLE

MOTOR

vc

MC

6512

6504

6547

6548

T[

o-•

'

11'.]

R

6536

WSBO

6541

*

--l}

SERVICE

POSJTION

2

HIGH

MC

HFI

X-TAL

(1502)

6549

0-5

OE~~

I

DEEM

6572

6582

6583

655<

*

--l}

0-6

DISTORTION

65

◄0

6541

6535

6536

EYE

P.4.TTERN

(Hfl)

SEE:

SPEOFICA

TION

MEASUR

E

MENT

SERVICE

POSITION

3

0-

7

6500

6504

6505

6506

REDIG

RELAG

RAO+

BO

+-83

cosc,

COSC2

LEVEL

D-8

' ,

r

ATSB°

HEADPHONE

65

◄

0

El

ERROR

INOtCATlON

ERXX

SEE:

ERAOA

TABLE

PANEL

0-9

'.ft-i'_

I

008M

MOA02127

T-27

918

www.audiodna.sk

'

A-1

µP -SIGNALS

Signal Mode

Reset Power

on

X-TAL Stand-by

TRAY

IN/OUT 2,5 Vdc when tray is inside

ATSB DISC, SEARCH

--

MUTE Play

--

BWS 8 cm disc

B-2

BO,

B1, B2, B3 SIGNALS

Signal Mode

Service position Oor 1; search »

BO

Service position 0 or 1; search «

Service position 0

or

1: search »

81

Service position 0

or

1; search «

Service position 0

or

1; search »

82

Service position 0

or

1; search «

Service position 0

or

1;

search »

83

Service position 0

or

1; search «

B-3 CHECK

OF

THE PHOTODIODES

Step Signal Mode

◊

power on

~

B-4 CHECK OF LASER SUPPLY

e

◊

~

. Remarks

100 Pulse "high"

101

4 MHz

2,5 Vdc "low" when tray is opening

83 2,5 Vdc "high" when tray is closing

89 "low"

67 "high" pulses low in position pause

17 "high" only when a 8 cm disc has

been used.

T-22387A

◊

~

. Remarks

36 "low"

34

"high"

34 "high"

33 "low"

33 "high"

32 "high"

T-223878

Remarks

See drawing Signal depends on Distance lens

++

38314A12 IR

LED

of

remote control

The laser, the lasersupply plus the monitor diode form a feedback system.

A defect

in

the lasersupply may result

in

the destruction of the laser.

If

, in that case, the laser is replaced,

(=

complete

C.D.M.-unit) the new laser will also become defective. However, it is impossible

to

·check and repair a feedback system

if

a link is missing. For this reason the laser supply can be checked with the replacement circuit for laser assembly.

Step Signal Mode ◊ e

~

. Remarks

LO

serv. pos. 2

~

-1.8

<V

<2.3

-

1 SK

~

PRS05539

LM

~

-170

<mV

<220 -

LO serv. pos. 2

~

-1.8

<V

<2.3 -

2 SK

~

PRS05540

LM --~70<

mV

<220 -

••

3 LO Power on

~

-

0V

± 0.2V -No light

T-223870

www.audiodna.sk

B-4 LASER CURRENT ADJUSTMENT (see drawing MDA02138 measuring and adjustment position)

Step Signal Mode

◊

e

~

(8)

. Remarks

1 -Power

off

~

R3520 1

kil

-Pre-adjustment

Ohmic value

2 Eye-pattern Power on

~

See

drawing

IF

no signal

HFI

Test disc 5 - - 3701788 see "start up

play (SAA7310) procedure"

3 laser current Test disc 5 0---0--4 use a high-

~

voltage play R3520 50 mV

DC

-ohmic voltmeter

across R3508 track 1

8-5

T-22387E

ADJUSTMENT OF FOCUS-OFFSET (see drawing MDA02138 measuring and adjustment position)

Step Signal Mode

◊

e

~

(8)

. Remarks

1 adjust for optical

-Power on -R3568 - - mid-position

of

the focus motor

Play 400mV ±

2

FE

LAG Test disc 5 27 R3568 40 mV

DC

-fine adjustment

Track 1

B-5 FOCUS ACTION T-22387F

Signal Mode

◊

~

(8)

. Remarks

-

SI/RD Service position 1 when repeating focws

21

See drawing MDA.01403

start up

FE

Service position

1,

no disc 26 See drawing MDA.01413

FE-LAG Test disc 5A, play 27 See adjustment

of

focus-offset

C-1 HIGH SPEED DISC ROTATION T-22387G

Signal Mode ◊

~

(8)

. Remarks

--

TL Test disc

5,

play

or

service position 2 13 Pulses "low" TL indicates that the track has

been found

HFI

Test disc

5,

play or service position 2 65

See

drawing: 3701788

X-tal Test disc 5A, play or service position 2 70 11.28

MHz

'

MC

Test disc

5,

play or service position 2

81

See drawing: 38849A12

12

T-22387H

C-2 TRACK FOLLOWING

Signal Mode

◊

~

(8)

. Remarks

RE

dig Test disc

5,

play

or

service position 3 37

RE

lag Test disc

5,

play or service position 3

41

""2.5 Vdc

C

osc1

Test disc

5,

play

or

service position 3

30

"" 650 Hz

C osc2 Test disc 5, play

or

service position 3

31

"" 650 Hz

RAD+ Test disc 5A, service position 1 40 Arm inside: 1V

Arm inside:

-1

V

RE

lead Position stand-by

35

"" 650 Hz

T-223871

www.audiodna.sk

kP

on

U

UL

MC-SIGNAL

POSITION

:

STANO

BY.

POSITION

:

PLAY

IBEGIININGI

POSITION

:

PLAY

(NOAMALI

38

149

A12

REPl.ACEME

NT

CIRCUIT

FOR

LASER

ASSEMBLY

~·-

::

:

}~

~J

! TO PANEL

~--

----

•o

.L

SK(openl)

THE

LEO

EMI

TS

UTTl.E

LIGHT

LED

GRE

EN

e.g.

COY!k

5322

13'.>

32182

PRS

.

05639

T2B/845

REPLACEMENT

ORWT

FOR

LASER

ASSEMBLY

~i··

::

: }

~CJ

j TO

PANEL

~-----....,

,o

.L

SK(CLOSED)

The

teetbeck

system

sees

to

i!

that

the

same amount of current

flows

through

the

LEO

.

When

SK

It

open

and

when

SK

It

doMd

the

LED

emit, little light.

PRS

,05540

T28/845

38

31L

A12

ov

__

POSITION

Pl.AYER

0005

SIGNAL

10mS

HF-SIGNAL

~~

")ly

I

:I

I I

11

r"\.'-'vl ..

·y

'VYYY

.

Si/Rd

1S

FE-SIGNAL

DOSD-SIGNAL

POWER

ON

SERVICE

POSITION

3

Pl.AV

1.0W

5-2

TllIII

•

Tl

'V~

VVVVVVI

37 0178&

2.

BV

.._

__

_

av

MDA.01403

T33/821

MOA

.01413

T33/823

SEAACH

,

PAUSE

MDA.01143

T12

-65

1

cs

22

117

www.audiodna.sk

D1

JUMP TO TRACK 1

Signal Mode

◊

DODS Test disc 5A search »

or

search « 19

QRA Test disc 5A, play 75

QDA

Test

disc

5A, play 77

QCL Test disc 5A, play

76

SWAB/SSM Test disc 5A, play 78

SCAB Test disc 5A, play 79

SDAB Test disc 5A, play 80

D-2 NO AUDIO OUTPUT LEFT+RIGHT

Signal Mode

◊

WSAB

Disc, play

71

GLAB

Disc, play 72

DAAB

Disc, play 73

EFAB Testdisc 5A 74

CLBD Disc, play 87

DABD

Disc, play 86

WSBD Disc, play 85

--

MUSS Disc, play 90

--

MUTE Disc, play 67

-

AM

Disc, play 67

WSAB

CLAS

W

SBD

....

,

----

- -

--

-

--

-------'--'

I

5-3

~

Remarks

See drawing MDA.01143

} See drawing MDA.00453

See drawing MDA.00239

See drawing

MDA

.00239

See drawing MDA.00239

T-22387J

~

. Remarks

} See drawing 38847C12

activity

pulses When the disc is slowly braked

"high" by hand

activitiy } See drawing 38848C12

"high" Pause, next, prev,

stop

: "

low

"

"high" Pulses low during pause

"high"

AM

= additional mute

T

-2

2387K

38

8L7

C12

176

.

l+kHz

CL

BD

: , 5.

6448MHz

1

•-····

·-

38

848

C12

cs

23 190

www.audiodna.sk

5-3

ORA

DATA REQUEST

FROM

µP ACKNOWLEDGE

FROM DECODER µP

RECEIVED

SUFFICIENT

DATA

OSCILLOSCOPE 5 ms/DIV

OCL

FrrTTTTTT'ffl

1111

~~

1

ir_CODER

---------rmTTn~CTTTTTITTn'~

J-1..U..1..YJ"

//

LI.U..W.llW

QDATA FROM DECODER TO P

CD

PLAYER

SWAB

SCAB

SDAB

WSAB

DOBM

WSAB

DOBM

II

HIGH IMPEDANCE

I

~l111111111111111

DATA ENABLE

BY

DECODER

L

R

POS

. STAND-

BY

MDA.00239

T12/638

POS.

PLAY AUDIO IN

FO

RMATION

FILTER

2µS/DIV

MDA.00453

T27/840

S/N

ANO

DISTORTION

METER

e.

g.

SOUND

TECHNOLOGY

ST

1700B

2µS/DIV

30 459

A12

MOA.00238

T07fl'J3

www.audiodna.sk

D-5 DEEM CIRCUIT

Signal Mode

◊

DEEM

Test disc 5A: track 14 PLAY 84

track 15 PLAY

Testpoint Test disc 5A track 14 92

92

Testpoint Test disc 5A track 15 92

92

Testpoint Test disc 5A track 14

91

-

Testpoint Test disc 5A track 15

91

D-6 SPECIFICATIONS MEASUREMENT

Signal Mode ◊

BU2-L Test disc 3, play, total harmonic filter

distorsion output

BU2-R Test disc 3, play, total harmonic filter

distorsion output

BU2-L Test disc 3, play signal-to-noise ratio filter

output

BU2-R Test disc 3, play signal-to-noise ratio filter

output

Filter = 13th order filter 4822 395 30204

D-9

DOBM

DIGITAL OUTPUT

Signal Mode

◊

DOBM Test disc 5A 88

ERROR

TABLE

System errors

lndi- Cause Check

cation

Er

02

No TL pulse at

start-up } Si, Sc,

RD,

Photodiode

filgnal processor

TL,

HFI

, CD disc

Er

03

Er

06

Er

07

Er

08

No lead-in track found

No

TL

pulse within 0.5

sec. during track

jumping

Subcoding error

during PLAY

TOG error

present?

CD disc, radial arm

position, REdig, Radial

error processor

RE-lag circuit,

TL

,

REdig

HFI

CD disc, turntable

motor control, radial

arm position

~

. Remarks

"low" See testpoint 92 and

91

"high" on DEEM circuit

LF signal

No signal

LF signal

No signal

T-22387L

~

. Remarks

See See drawing 30459A12

technial

data

See See drawing 30459A12

technial

data

See See drawing 30459A12

technial

data

See See drawing 30459A12

technial

data T-22387M

~

. Remarks

See drawing MDA.00238

T-22387N

www.audiodna.sk

Operating errors

Er

30

"NEXT" key operated during the last track, with

"REPEAT" turned off.

Er

31

"PREVIOUS"

key

operated during the

first

track,

with "REPEAT" turned off.

Er

32

AB key operated in AMS mode.

Er

33 The selected index number·

does

not

exist

on

this

disc

.

Er

34 Programme survey requested;

no

programme

present.

Er

35

The programme

memory

is full.

Er

36 The programmed

track

is

not present on this

CD

disc

.

Er

37

The

selected track is

not

present

on

this CD disc.

Er

38

MEMO

pressed during AMS while track

not

known.

MEMO

pressed during EDIT while cassette time

= 0

sec

.

Er 39 MEMO

or

CANCEL pressed while in play

program.

Er 40 MEMO pressed when already a delete program

has been made.

Er

41

CANCEL pressed when already a

not

deleted

Er

42

Er

43

Er

44

Er

46

Er 47

program has been made.

Selected track is

not

a program block.

FTS store

err

or

: memory full.

FTS store

error

: no program

..

FTS play

error

:

no

FTS program in memory.

FTS selection

error

:

upper

bound

of

fts

memory. (next).

Er

49

FTS selection error:

selection request while

stor

ing. (next/prev).

Er 51 FTS selection error: -

selection request while storing. (review).

Er

52

FTS selection clear error:

Er

54

Er

56

Er

60

Er

63

Er

74

Er 75

Er

76

clear request while storing.

FTS store

error

:

no

record id (toe) available.

AB key pressed when

not

in PLAY

mode

.

Fast forward/reverse bound.

No track possible

to

play in edit mode.

Relative time

not

found.

Binary search time

out

error.

Time search time

out

error

.

U.S.

VERSIONS

:

Uprim.117V~

(F

IXED)

.

5

THERMAL

FUSE

: 4822 252 20108

EUROPEAN

VERSIONS:

Uprim.

(a

djustable by

changing

interconn

ec

tions) 3

~i.l

TH

ER

MAL

FU

SE : 4822 252 20017

5-4

Uprim. Winding

Inter-

(VI~

connect 44

577

A11

110

4-1

3-1/5-2

127

4-6

3

-1/5

-2

220

4-5

1-2

240

4-6

1

-2

cs

23

191

www.audiodna.sk

cs 23 192

6-1 6-1

V2

V1

-----

-

------------

----------------------------------------------

-----

---------------

-------

-------·-· '-----

19

4

11

8 2 18 I

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------

-

-------------

------'

5001

22

240V

17

5

16

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MAINS

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17

3

I

220V

i

17

4

127

V

17

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I

21-1

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0)

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2500

I

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3n3

i

20

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16

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----~---

✓

co-.,___-<Y

1

Power

ON/OFF

i

!

I

i

I

i

I

i

Ref

0016

0017

002.1

1510

0256

/01

X

-

74CD50/

..

/02

/04

/05

/06

X X X X

----

X X X X

168.A

328.A

1

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32&.A

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Marantz 74CD60 User manual

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