Marantz CD 65 DX Service Manual

Page 1

Compact disc player CDBSDX/A/AB/N/Ne/TB

Service
Sewgce , +r
Servrce

A2 925 All
=or repair at the CDM mechanism in sets with

renelnumber AHOO. see Service Manual COM-24:500.
=or sets with serialnumber Aunt and on. see chapter a.

Service Manual

[flfigfi

DIGITAL AUDIO

CONTENTS

1 Explanation ol subdivision and table 01 contents per
page

2 Controls and technical specifications

3 Servicing hints

4 Measurements and adjustments

5 Exploded views and parts lists of mechanical
components

6 Block diagram, circuit diagrams, PCB data. parts lists
of electrical components and wiring diagram

7 Changes

8 Additional information

Safety regulations require that the set be restored to its original mm um
condition and that parts which are identical with those specltlea be
used
Jill umr-ntnlimlelrnuue Sorwtu Dokunwntatrr n Lkrlmvmrlrlontr ill bvrwlm Htl'lfi»f)l;fiN14illlr311' Swim C ~.4;ivm,:- r l l
Subject to modllicauon
4822 725 21514 WI-m by sown

Comm: EWIWS
Printed in The Netherlands
°capyright reserved CS 15 215

Page 2

MARANTZ DESIGN AND SERVICE

Using superior design and selected high grade
components, MAFIANTZ 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.

Parts for your MAFIANTZ equipment are generally
available to our National Marantz Subsidiary or Agent.

ORDERING PARTS:

Parts can be ordered either by mail or by telex. In both
cases. correct pan number has to be specified.

The following Inlormation must be supplied to eliminate
delays in processing your order:

. Complete address

. Complete part numbers and quanties required

. Description of parts

. Model number for which part is required

TECHNICAL ASSISTANCE

Should you require any other technical support. do not
hesitate to contact the Technical Department of
MARANTZ INTERNATIONAL
Quality & Service Dept.
80. Rue des Deux Gares.
8-1070 Brussels
Belgium
Phone: 02/525.70.22 or 5257023
Teleiax: 02/525.6160
Telex: 23550 OR
61511 (PHEMB) routing: BELDMZT

. Way of shipment

0301&UN-

. Signature: any order lorm or telex must be signed

otherwise such part order will be considered as null

and void.

PARTS ORDERING

Parts may be ordered at the Iollowmg addresses:

AUSTRIA

HORNVPHON
Vartnebsgesellschah GmbH
Wienerbergslrasse 1

A 1101 Wien

Austria

Telex: 132 332

AUSTRALIA
MAFIANTZ AUSTRALIA
PTY.. Ltd

19 Chard Road
Brookvala. NSW 2100
Australia

Telex: 24121

BELGIUM

SVD DIVISION MAFIANTZ
InGUstrialaan 1

1720 Groot-Bljgaardan
Belgium

Telex: 24466

CHILE

MARANTZ

DIVISION OF PHILIPS SA
AV. Santa Mann, 0760
Casrlla 2687

Sanuago

Telex: 240,239

DENMARK

MARANTZ

DIVISION OF PHILIPS
SERVICE A/S

Frags Boulevard 80
Postbox 1919
DK<2500 Kebenhavn 5
Denmark

Telex. 31201

FINLAND

MARANTZ

DIVISION OF OY PHILIPS Ab
Karvokatu 8

00100 Helsinki

Finland

Telex 124611

FRANCE

MARANTZ FRANCE
4 Rue Bernard Palissy
92600 Asnieres
France

Telex. 611551

GERMANY

MARANTZ GERMANY GmDH
Max-PIanck-Strasse 22

6072 Dreieich 1

Germany

Telex: 529821

THE NETHERLANDS
Elpro by.

De Limiet 3

4131 NR Vianen
The Netherlands
Telex; 47679

NORWAY

MARANTZ

DIVISION OF PHILIPS AIS
Sandstuveien 40

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. 935156

GREECE

SHERTON ELECTRONICS 5 A
P O Box 21025

Hippocratus Street 188
AIhens 11471

Greece

Telex: 216 795

JAPAN

MARANTZ JAPAN. Inc.
35-1. 7-chome. Sagamiono
Sagamrhara-shi. Kanagawa
Japan

KUWAIT

AL ALAMIAH ELECTRONICS
Ussama Building

Fahd al Salaam Street

P O.Box 23781

Salat-Kuwait

Telex: 22694

ITALY

MARANTZ ITALIANA S P A
Via Chiese, 74

20125 Milano

Italy

SAUDI ARABIA

AL ALAMIAH ELECTRONICS
F O Box 5954

Unwersrty Street

Riyadh 11432

Saudi Arabia

Telex 201530

SOUTH AFRICA
MARANTZ

DIVISION OF PHILIPS SA
Rainer House

Ove Street. 10
Doornlontein
Johannesburg

Telex: 483.456

SPAIN

PHONO S.A.

Ignacio Iglesras 10
Badalona (Barcelona)
Spain

Telex: 59355

SWEDEN

MAFIANTZ

DIVISION OF PHILIPS
Forselining AB
Tegeluddsvagen 1
5-115 84 Stockholm
Sweden

Telex 14060

SWI'IIERLAND
DYNAVOX ELECTRONICS
Route de Viilers 105

1701 Fnbourg
Switzerland

Telex: 942377

TURKEY
DOGRUOL Ltd
1 MC.

6 Sick N°6310
Unkapani
Istanbul
Turkey

Telex: 22085

MALTA

CACHIA & GALEA
Republic Street. 68D
Valatta

Telex: 1682

U.S.A.

MAFIANTZ COMPANY, Inc.
National Service Department
P.O.Box 577

Chatsworth. CA 91311
USA.

PORTUGAL

MARANTZ

Divisao philips SA. service
OutureIa-carnexide

2795 LinDA-A-VELHA
Telex: 43906

All of the above locations are tully equipped to take care at your total service needs. Because various countries have
(littering configuration requirements. it is necessary that you contact the service lacility in your particular country. In
the event that there is no service location listed for your country. please. contact the nearest tacility tor the necessary

assistance.

CS 15 216

In case 01 difficulties. do not hesitate to contact the Technical
Department at abovementioned address.

Page 12

4-4
0 MUTE signal (pin 11; test point 67)

When Filter-B IC is applied. the MUTE input will not be
used.

II. CONTROL pP ICGSGS

0 Reset (pln 2; test point 100)

When the supply voltage is switched on a positive
voltage should be present.

. x-tal (pin 5: test point 101)
The frequency of this signal should be 4 MHz.

0 Data (pin 25; test point 102)

0 Clock (pin 26; test point 103)
There should be activity at test point 102 and 103 in
position play (display information).

0 I10 (pin 22; test point 29)

o IO (pin 23. 17; test point 31)
There should be activity at test point 29 and 31 in
position play.

0 Port (pin 20; test point 104)

When the supply voltage is switched on a negative
puts should be present.

PHOTODIODE SIGNAL PROCESSOR |C6525

0 SC (pin 25)
SC (= Start Capacitor)

High Ohmic measurement

Position of player 50 (pin 25)
POWER ON -4 V
PlAY +5 V
Servicing pos. 1 +5 v

0 § (pin 20; test point 21)
L0 (pin 17; test point 9, 9. 9')

- With the Si signal (= Start Initialization) the laser
supply. amgng other things. is switched on.
When the Si signal ls "low". the LO signal (= Laser
Out) should be "high".
Via the LM signal (= Laser Monitor) the power supply
for the laser diode is controlled.

Position of POWER Servicing PLAY
player ON pos. 1')

§ signal "high "low low"
LO signal "low high" "high"

0 LM (pin 16; test point 11) to check LM
See general checkpoints 'check of the laser supply'

0 To check the laser supply. see General checkpoints
"Check of the Laser Supply".

0 To check the teens offset. see General checkpoints
"Adjustment of the Focus Olfet".

) To ensure that the player stays in servicing position 1.
there should be a disc on the turntable.

CS 9 941 GB

0 FE pin (pin 5; test point 26)

- The FE signal (= Focus Error) is used to drive the
focusing uglt.
When the Si signal goes to high". the local point will
be searched for.

- When the player is brought into servicing position 1
without disc. the objective will search 16x for the local
point.

At test point 26 the FE signal varies 16x between
+2 V and -1.5 V.

- The FE signal ensures that the spot stays in focus.
When an error signal is injected. the FE signal will
correct.

Bring the player in servicing position 2 (with disc on
turntable).

Inject successively a voltage of +5 V and -6 V
(= +5A and -GB) via a 200 k9 resistance to test point
25.

Signal injected

test point 25 IC7104A +5 V -6 V

FE signal negative positive

0 RD signal (pin 21: test point 24)
HIGH-OHMIC MEASUREMENT

The RD signal (= Ready) will go high when the starting
procedure of l06525 has been completed.

nnsww. lame acme L. SERVlCE 903mm v PU.
iii: MSNN 7. ._ MGM 'LOW
POW?" ON
0 01 (pin 9 ; test point 4)
02 (pin 10; test point 6)
03 (pin 3 ; test point 7)
D4 (pin 7 ; test point a) 3A???

- The signals D1+D4 are the error signals from the
photodetector circuits.

- When in servicing position 1 the disc is moved. the
focusing unit should keep in track.
When the disc is moving. there should be a changing
signal on test points 4, 6, 7 and a.

- Check of the photodetector.
Connected the circwt below to an atternating voltage
of 17.5 V.

1.1SW
I
75 enlwsz Icons
39 368 A12
100 E-1l5W ~482211651096
BAW 62 - 4822 130 30613
cov 39 - 4322 130 31332

Swnch on the supply voltage and bring the player in the
stand-by mode or in serciving position 0.

In this measurement. infrared diode CQY89 replaces the
function ol the laser diode.