Marantz CD 10 Service Manual

Page 1

serVice 74 CD10 / 003
Manual Compact disc player

MIT: EB 55?!

:IIIImIIE'IuIfi'm.

CONTENTS
SECTION PAGE
1. TECHNICAL SPECIFICATIONS ....................................................................................................... 1
2. IC PIN FUNCTIONS ------------------------------------------------------------------------- 3
3 BLOCK DIAGRAM ......................................................................................................................... 8
4. SCHEMATIC DIAGRAM AND PARTS LOCATIONS (PATTERN SIDE) ................................................. 1o
5. CONNECTION DIAGRAM ............................................................................................................. 34
6. EXPLODED VIEW AND MECHANICAL PARTS LIST ......................................................................... 35
7. TRAY MECHANISM LOADING PROCEDURES ............................................................................... 40
8, PRACTICAL HINTS ---------------------------------------------------------------------------------------------------------------------- 42
9, INITIATING THE SERVICE PROGRAMME .................................................................. 43
10. MEASUREMENTS AND ADJUSTMENT FOR CDM4 (SUB CHASSIS) ................................................... 45
11. DETAILED MEASURING METHOD FOR THE SERVO + PRE-AMPLIFIER CIRCUIT ............................. 45
12, DETAILED MEASURING METHOD FOR THE DECODER CIRCUIT .................................................... 49
13. ELECTRICAL PARTS LIST ............................................................................................................ 52

4822 725 51012

maranll®

mOdel CD'1 0 First issue: 1992

P0867 925..

Page 2

MARAN " I NAND ERVICE
- ULS G S 1 TECHNICAL SPECIFICATIONS

Using superior design and selected high grade components, -'*-I Audio charactaristios

MARANTZ company has created the ultimate in stereo sound MARANTZ EUROPE Eve 6""95 -' ~ 1, ll? 3"?"9'5'
Only original MARANTZ parts can Insure that your MARANTZ . Vestdijk 9 D warm" ' n "ea 3""6
product will continue to perform to the specificatlons for which it is 5600 MD Eindhoven

Frequency Characteristics

: farm The Ne"9"3"5 Line output Jack 20 to 20,000 Hz, + 0.2 us
Phone : 61410-758290 Dynamic range
Pans Ior your MARANTZ equipment are generally available at our Fax : Kit-40458299 S/N ratio
National Merantz Subsidiary or Agent. Telex : 35000 PHTC NL Channel separation 100 dB or more it kHIl

routing ind, THD 0,0015 % (1 kHz)
Wow & flutter ,Precision of quartz
ORDERING PARTS Analog outputlac 5

Output level 2 V HMS
Output Impedance 100 ohms
,10 k ohms or more

Line output lacks

Parts can be ordered either by mail or by telex, In both cases, the correct part number has to be specified. Maching load impedance

The following information must be supplied to eliminate delays in processing your order: Digital 0|me V pm lack, 0.5 Vp.p/75 arms
1. Complete address (Rectangular optical connector)
2, Complete part numbers and quantities required optical output >19 03m
3, Description of pans
4. Model number for which the part is required Optic-I Handout System
5. Way of shipment Laser . .AIGsAs semrconductor
6, Signature: any order form or teiex must be signed, Wavelength ...750 "m
otherwise such part order will be considered as null and void.
Signal System 44 1 kHz

Sampling Irequency

QuantizatIon 6 t linear/channel

ADDRESSES Error correctio ..... Cross lerleave read solomon code (CIRC),

AUSTRIA FRANCE mu NORWAY sum Class A D/A °°"V95'°"

MARANTZ MArwirz FRANCE MARANTZ mmm SPA ummz MARANTZ SPAIN

Nielzlnglr Ka. tau 4 Rue Bernard Pallssy Pom lV Nnvmbre a Posthnts 7034 Martinez vilergas 2 Power Supply

1130 Wbln 92m Arne; zoi2< Wane Ass-oen Assume 2065 Voltage - 230 V

Austria France Italy azalfyflmm 3.3:? 28027 Line Frequency 50 H2 0' 60 HZ
PowerConsumpllont ...18W

BELGIUM GERMANY JAPAN PORYUGAL SWEDEN

mmz EUROPE 5 v MARANTZ GERMANY GrnbN mam-z JAPAN iNC COREL MARANYZ Cabin-t, etc.

Drv Benetmt Alenndemrsue a :51, 7mm, Ssgamiano Av. u. Libsrdafle Box 1324 Dimensions

e 0 Box m 2000 Hamburg Saoaminarasm Klnagawa 21i-2 Esq W25 soina Width

Buildlng new oanrrarry Japan 1200 Lrshoa Sweden H 9i ht

5600 MD Emdhoven Portugal 9

The Memories Dem - "358 "V
weight i. ADPYOX- 15 5 k9

CHILE GREAT BRIIAIN KUWAII SAUDI ARABIA SWITZERLAND Operahng temperature * 5°C * 35°C

MARANTZ DIVISION or MARANTZ HiFl UK Ltd AL mum ELECTRONICS AI. ALAMIAN ELECTRONlCS MARANTZ SWITZERLAND Operating humidity S % ~ 65 /o (withoul Dew)

PHILIPS s I. Klngsbnflge House a 06m awe P (1on 5954 Pesflach

Av Santa Maria mac Padbury om Salmrlh University Stree| solo Zurich can: .~

caslia 2687 575583 Bath Road 22052 Kuwait Rryadh mu smumna RC 10 CD 1

Santiago Longrom Middluex um OEH sauul Arabia Remote control n t ' I ~

cmlo ux Dimensions (w x H x D) .. 60 x 15 x175 mm

Welg ht (without batteries) ..,85 g

DENMARK GREECE NETHERLANDS sour» AFRICA 'IRADING R03 Batteries u 2

MARANTZ ADAMCD Etecm SA mum: EUROPE ev, MARANYZ sA MARANTZ TRADING Stereo audio cable WM. FICA pm; . 1 Pair

Humvinget 5 P 0 so. 21025 on mm to Band siroei F 0.3m 2m » » - -

2630 how: Hippocralus sir. lee F' Dem 213 Randburg 2194 Building New D'Wal Slgnal cable wrth RCA plns "

Denmark Athens 1147 Building HOME P O Box 7706 5600 MD Emommn V _ .

Bruce 5600 MD Email-mu Johannesburg mo The Netherlands Improve merit may result In changes in SpSOlIIDaIIOnS and demgn Without flDIlCe.
The Netherlands 50th Alma

FINLAND

MARANTZ

Kumanegalan t

00520

Nelslngim 52

Finllrld

All at tho above location: or. fully equipped to take care or your total service mus or can advice you, Became various countries
rim dmcring configuration requirememr. Us rrmmry um you corruoi the service Ileility in your particular country.
In m- m that there Is no service location "shed for ynur country. please contact the "cams! lacIIIty for the necessary assistance

In case I71 difficulties, do not hesiiale to coniacl the {
Technical Department at above menIioned address I

ensuing . ~ _ P0867 927

Page 32

12 DETAILED MEASURING METHOD FOR
THE DECODEB CIRCUIT

DECDDEH to (05m)

- Check the MC signal
MC (pln 24: test point 74)

The MC signal is used to control the speed otthe turntable
(spindle motor),
. In stand-by mode. the MC signal (Motor Control)
corresponds to the Iigure below.
Note:
The repetition time ot the MC signal is 11.3 usec.
- Place a disc on the turntable.
- In position PLAV or service position E". the MC signal
corresponds to the figure below.
Note:
During start-up the duty cycle is 99 % then the duty
cycle of the signal becomes about 50 lo.

m
l___/ "U l

. Check the HF signal

Standby mode

At start

When reaching the
normal speed

HF (eye pattern; test point 61)

- Place a disc on the turntable.

- When reading of the lead-in track is completed in the
PLAY mode or in service position "E", normal HF
signal becomes the eye pattern as shown below.
Note:

in service position 2" or during reading ol the lead~in '

track the HF signal is not stable.

Amplltude , LS Vpp (eye pattern)

~ Check the Xin signal
Xin (pln 26; lest point 77)

. The Xln lrequency is .2896 MHz.
» it this lrequency deviates, check XlN (pin 9) on ADOC

)5 menu. 9-». ea, gamma, 5.. 4 t a. we.

once-I on

Check the timing signals meant tor Filter IC (0502)

WSAB(pIn 4; test point 78)
Cute (pin 3; test point 79)
DAAB (pin 2; test point 81)

Place a disc on the turntable.

Service position "E" or PLAY mode.

Trigger the oscilloscope with the WSAB signal.
check the interrelation between the WSAB signal and
the CLAB signal.

The DAAB signal being sent to the Delay IC (0565)
can be observed by triggering the oscilloscope with
the WSAB signal. (The data waveform is not stable.)

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Check the EFAB signal
EFAB (pin 1; test point 66)

Place test disc SA" on the turntable.

During playback, EFAB pulses should be present at
test point 66 Ior soit braking at the disc and during last
searah (F. Forward, F. Reverse).

meter-H 1

Check the O-channel signals

ORA (pin 38; test point 62)
OCL (pin 40; test point 63)
am (pin 31; test point 64)

Place a disc on the turntable.

Service position E" or PLAY mode.

Trigger the oscilloscope with the ORA signal (0-
channel Request Acknowledge).

Check the interrelations o1 ORA and OCL (chhannel-
clock) signals between the master uP (QF01).

ll they are normal, check the ODA signal (Q-channel
Data).

Note:

The QFlA request is initiated by QFOI (ORA 'high").
Then Decoder-A answers this request (ORA goes
'Iow"). With the next leading clock pulse (QCL) the
ORA slgnal is rendered high' again by the QFOl. As
soon as the Decoder-A has taken in enough intorma~
tlon via QDA, ORA will go "low" again. That is why the
ORA times vary each time,

.. ii

-i n rim/trini-

Check the SWABI§§TVI signal
SWAelS'SMtpin 42; test point 65)

Motor start pulse when test point 65 is high" tor s 0.2
sec.

Molar stop pulse when test point 65 IS low" tor s 02
sec.

Note:

After the motor start pulse goes high", SWAB inter-
malion [Subcoding Word clock) will become visible at
this paint. The period time of that signal is 135 usec
(7.35 kHz).

check the subcode clock signals

swna/s-sTtl (pln 42. test point 55)
SCAD (pin 44, test point 70)
SDAB (pin 43, test point 68)

Place a disc on the turntable.

Service position "E" or PLAY mode.

Trigger the oscilloscope with the SWAB signal at test
point 65.

Check the SCAB signal (Subcode Clock).

Check the SDAB signal (Subcode Data).

Check that the signals above are sent to ADOC
(DIGITAL OUT) K) (0504) wtthout interruption. How-
ever, they 90 low" at PAUSE/STOP mode.

Note:

While the burst at to clock pulses appear on SCAB.
the D»channel inlermation is translerred on SDAB.
Hereafter the P»bit indication lollows.

The Phil is "high" between two bursts at 10 clock
pulses in case ot pause indication and low" in case oi
music indication.

Check the mas/cm signal

BEES/(fl (pin 36; test point 1a)
The CRl signal (Counter Reset) goes low" in track
)umping and the signal makes the internal counter to
tree-running status. (See PHOTODIODE §ENAL
PROCESSOR ic (010i), Check the DODSICRI sig-
nal section.)

Check the DEEM signal
DEEllil (pin 41 ; test point 69)

Place lest disc 5" on the turntable.
During playback OVlrack number 15 me DEEM signal

should be high". (DE-EMPHASlS ON)

ADOC IC (0504)

This Ic (ADOC: Audio Digital Output Circuit) generates
the DOBM signal out at the I 2S data and subcode data.

- Check the WSAB, DOBM signals

WSAB (pin 1; test point 78)
ooem (pin 13; test point as)

- Place a disc on the turntable

- STOP mode or PLAV mode.

Trigger the oscilloscope with the WSAB signal.
Check the DOBM signal.

Note:

As shown below. the DOBM signal makes a pattern
when an audio signal enters. but the data section at
the DOBM signal is not specified when the audio
signal does not enter.

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CHECK THE ATSB, MUSE SIGNALS

ATSB (QFOZ, pin 20; test point 57)
MUSBtQFoz, pin 21; test point 58)
~ The ATSB signal goes low" during searching With
attenuation (-12 dB) in.
- The Muse signal goes low" during PAUSE, SKlP,
and track )umplng With mute in.

FILTER IC (0553)
. Check the signals between Decoder IC and Filter

IC
wsne (W501-pin 2; test point 78)
CLAB (wsot-pin 3: test point 79)
DAAB (W501 -pin 1 ; test point 81)

LFICt/WSAB (pin 28; test point 18)
BCKl/CLAB (pin 2; test point 88)
DIN (pin 1:tut point 99)

The DAAB, CLAB, WSAB signals are output irorn De-
coder lC (05m) in PS tormat. A tormat conversion is
required (or lnputting these data into the Filter IC (0563).
For this purpose. the DAAB signal is delayed by 16 bits
with the CLAB clock in the Shift Register IC (0565, 0566).
As a result, the delayed DAAB signal irom pin 13 ot loses
is input to Filter IC (0563) (See the timing chart.)

rn PC567 959