Hitachi DA 02 Service Manual

Page 1

§I HITACHI

SERVICE MANUAL

No.61 3EGF

DA-02

[35, ES, ZS, KS, VS]

Laite when nfikymfiténté lasarsiiteiiyii. kun se avataen ja kun sisaiset turvalukot eivit toimi. VARO JOUTU-

CAUTION ,
DANGER
Invisible laser radiaiion when open and interlocks failed or defeated. AVOID DIRECT EXPOSURE TO BEAM.
GEFAHR
{Unsichtbare Laser-Strahlung wenn Interlock (Blockierung) funkfionsuntuchtig oder abgeschanet.
UNMITTELBAREN KONTAKT MIT DEM STRAHL UNBEDIGT VERMEIDEN.
DANGER
Fairs tres attention aux radiations 6min; par la faisceau Ieser invisible au défaillance du verrouillage.
NE JAMAIS SEXPOSER DIRECTEMENT AU FAISCEAU.
VARNING
N'a'r apparaten Dppnats och skyddsanordningen felar eller sans ur funktion IDrekommer osynlig Iaserstrélning. UNDVI K
DIREKT BESTRALNING.
ADVARSEL
Nir apparatet fibnes og beskyfielsesanordningen ikke virker eller settes un af funktion, forekommer der usynlig
lawmréling. UNDGA DIREKTE BESTRALING.
ADVARSEL
Nir denne deIen er épen som falge av at Ifisen er utkoplet elIer ikke fungerer, eksisterer det usynlig laserstriling.
UNNGA A BLI UTSATT FOR DIREKTE BESTRALING!

VAROITUS
{ MASTA ALTTIIKSI SATEILYLLE.

CONTENTS

SPECIFICATIONS .
FEATURES
MAINTENANC
SERVICE POINTS I
ADJUSTING THE PLAYER
DESCRIPTION OF PARTS I
TROUBLESHOOTING ..
REPLACEMENT PARTS LIST
EXPLODED VIEW .
BLOCK DIAGRAM
PRINTED WIRING BOARD
CIRCUIT DIAGRAM

INHALTSVERZEICHNIS
TECHNISCHE DATEN
MERKMALE .............
WARTUNG ..............
WARTUNGSPUNKTE v
EINSTELLUNG DES GERATES
BESCHREIBUNG DER TEILE
STORUNGSSUCHE .
ERSATZTEILISTE
EXPLOSIONSZEICHUNG.
BLOCKSCHEMA ..
PRINTPLATTEN
SCHALTPLAN .,

TABLE DES MATIERS
FICHE TECHNIQUE ......
CHARACTERISTIQUES
ENTRETIEN
POINTS DE SERVICE
REGLAGE DU LECTEUR DE DISQUE .
DESCRIPTION DES PIECES
EN CAS DE DIFFICULTE ..
TABLEAU DES PIECES
VUE ECLA'I'I'F. .
SCHEMA .....
PLAN DE BASE
PLAN DE CIRCUIT

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.

COMPACT DISC PLAYER

YOKOHAMA WORKS

April 1989

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DA-02

The caution labels on laser usage ~ Warnettiketten zum Gebrauch des Lasers -
Notices de precautions d'emploi du laser
DANGER

Invisible laser radia-
tion when open and
inter lock failed or
defeated.

AVOID DIRECT EX-
POSURE TD BEAM. For Canada
CAUTION: HAZARDOUS LASER Ffir Kanada
AND ELECTROMAGNETIC RADIA- Pow Ie Canada
TIDN WHEN OPEN AND INTERLDCK
DEFEATEDI

ATTENTION: RAYDNNEMENT
lASER ET ELECTROMAGNETIQUE
DANGEREAUX SI OUVERT AVED
L'ENCLENCHEMENT DE SECURITE
ANNULE.

For Sweden Denmark, Norway,
Finland and Switzerland.
For U-S-A- Fiir Schweden, Danemark, Norwegen,

Fiir U.StA. Finnland und Schwelz.
Pour les Etats Unis

Pour Suede, Danemark, Norvege,
Finlande et Suisse,

mum usnus usrrsniuts rm
lam Ill smtttutuurmotnt tn
unt Ar illIXIlfll urnci unsmnst
rot snltlls

For Europe and Australia, etc.
FiJ'r Europa und Australian usw.
Pour I'Europe et |'Austra|ie,etc,

CAUTION-lNVlSlBLE LASER
RADIATION WHEN OPEN

AND INTERLOCKS FAILED OR
DEFEATED AVOID DIRECT
EXPOSURE TO BEAM

LASER PRODUCT

For Europe and Austraiia,etc.
Fijr Europa und Australien usw.
Pour IEurope et I'Australie,etc.

AVOID EXPOSURE-LASER
RADIATION IS EMITTED
FROM THIS APERTURE

lnsrde of the set IS a laser component emitting a laser radiation over the limit for laser class I,
k Inutl apparaten firms on Iaserkomponent som avger laserstralning over gransen for laser klass 1.

/ SAFETY PRECAUTIONS

The toliowmg precautions should be observed when servxcing,

I. Since many parts in the unit have special safety related characteristics, always use genuine Hitachis replacement panst Especially
critical parts in the power circuit block should not be replaced with other makers.
Critical parts are marked with A in the Circuit diagram and printed wiring board.

2' Beiore returning a repaired unit to the customer, the service technician must thoroughly test the unit to ascertain that it is complete-
ly safe to operate Without danger of electrical shock.

SPECIFICATIONS

AUDIO

Number of channeis 2 Dimensions 370iW) >< 75.5(H) x 274(D) mm
Frequency response 5 7 20,000 Hz Weight 2.4 kg
Dynamic range 90 dB iiHF A) FUNCTIONS AND DISPLAYS
Signalrto-noise ratio 93 dB iiHF A) Functions Program play With random memory
Harmonic distortion 0.005% (at IkHz) search system
Separation 90 dB (at ikHzi Direct search system
Wow/flutter Less than measurable limits Skip search system

iii) 001% W, peak) Manual search
Output voltage 2V Timer playback
DISCS USED Compact Disc Repeat playback
Diameter 120 mm/SO mrn Random play
SIGNAL FORMAT 8 cm compatibility
Sampiing frequency 441 kHz Display Track number indicators
Quantization number 16 bit linear/channel ACCESSORIES Connecting pin cord
Transmission bit rate 43218 Nib/sec power supply cord
PICKUP
System Object lens drive system optical pickup
Object lens drive system Zoimensional parallei drive
Opticai source Semiconductor laser
Waveiength 780 nm
GENERAL
Power requirements AC7r5V, OBA

(Secondary supply from MD-OZ or HRDAMD03)

Specifications and design may be changed without notice for improvement

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