Sharp cd c 570

Page 1

CD-C570E/CD-C57OZ,CP-C570

SHARP SERVICE MANUAL

No. $5627CDC570EK

CD-C570E(BK)
CD-C57OZ(BK)
CP-C570(BK)

COMPACT . .
- Safety regulations require that the set be restored to its original
C.) SOUND condition and that parts which are identical with those specified, be
DIGITAL AUDIO RETRIEVAL SYSTEM used.

o SRS technology Licensed from SRS Labs. SRS lech-
nology holds the following patents:U.S. Patent No.
4.748.669, US Patent No. 4,541 .572 and U.S. Patent

- Note for users in UK
Recording and playback of any material may require consent

No. 4555.774, which SHARP is unable to give. Please refer particularly to the
-SRSthe SRS Logo (9) and me SOUND RETRlEvAL provisions of Copyright Act 1956. theDramatic and Musical
SYSTEM are registered trademarks of SR3 Labs. Inc. Performers Protection Act 1956, the Performers Protection Acts
1963 and 1972 and to any subsequent statutory enactments and
orders.
/ CONTENTS \

IMPORTANT SERVICE NOTES (FOR CD-CS70E ONLY)
SPECIFICATIONS
NAMES OF PARTS .
OPERATION MANUA
DISASSEMBLY ...........
REMOVING AND REINSTALLING THE MAIN PARTS

ADJUSTMENT ..
NOTES ON SCH ..
BLOCK DIAGRAM ...............................
SCHEMATIC DIAGRAM/WIRING SIDE OF P.W.BOARD .. . 18
WAVEFORMS OF CD CIRCUIT... . 41
TROUBLE SHOOTING (CD SECT t 42
FUNCTION TABLE OF IC.. . 46
FL SEGMENT .................... . 52
WIRING OF PRIMARILY SUPPLY LEADS(FOR CD-0570E ONLY) .. ,. 52
PARTS GUIDE/EXPLODED VIEW
PACKING OF THE SET (FOR CD-C57OE ONLY)

\ /

SHARP CORPORATION

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CD-C570E/CD-C57OZ,CP-C570

SAFETY PRECAUTION FOR
SERVICE MANUAL

WARNINGS

THEAEL(ACCESSIBLE EMISSION LEVEL)OFTHE LASER POWER
OUTPUT IS LESS THAN CLASSI BUT THE LASER COMPONENT
IS CAPABLE OF EMITTING RADIATION EXCEEDING THE LIMIT
FOR CLASS 1. THEREFORE IT IS IMPORTANT THAT THE FOL-
LOWING PRECAUTIONS ARE OBSERVED DURING SERVICING
TO PROTECT YOUR EYES AGAINST EXPOSURE TO THE LASER
BEAM.

1-WHEN THE CABINET IS REMOVED, THE POWER ISTURNED 0N
WITDOUTACOMPACT DISC IN POSITION ANDTHE PICK-UP IS
ON THE OUTER EDGE THE LASER WILL LIGHT FOR SEVERAL
SECONDS TO DETECT A DISC. DO NOT LOOKINTO THE PICK-
UP LENS.

2-THE LASER POWER OUTPUT OF THE PICK-UP UNIT AND
REPLACEMENT SERVICE PARTS ARE ALL FACTORY PRE-
SET BEFORE SHIPMENT.

DO NOT ATTEMPT TO RE-ADJUST THE LASER PICK-UP UNIT
DURING REPLACEMENT OR SERVICING.

3-UNDER NOCIRCUMSTANCES STARE INTOTHE PICK-UP LENS
AT ANY TIME.

4-CAUTION-USE OF CONTROLS OR ADJUSTMENTS, OR
PERFORMANCE OF PROCEDURES OTHER THAN THOSE
SPECIFIED HEREIN MAY RESULTIN HAZARDOUS RADIATION
EXPOSURE.

Eigenschafien der Laserdiode
Material: GaAIAs
Wellenlénge: 780 nm
Emissionsdauer: konlinuieriich
Laser-Ausgang: max. 0,6 mW

Caractéristiques de la diode laser
Matérial: GaAIAs
Longueur d'onde: 780 nm
Durée démission: ininterrompue
Puissance de sortie laser maximale: 0,6 m

Laser Diode Properties
Material: GaAIAs
Wavelrngth: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW

VARNING-OSYNLIG LASERSTRANING NAR DENNA DEL AR
OPPNAD. STI RRA EJ IN I STRALEN OCH BETRAKTA EJ STRALEN
MED OPTISKA INSTRUMENT.

VARO! AVATTAESSA OLET ALTTIINA NAKYMATON
LASERSATEILYLLE.

ALA TUIJOTA SATEESEEN ALAKA KATSO SITA OPTISEN
LAITTEEN LAPI.

VARNING-OSYNLIG LASERSTRALNING NAR DENNA DEL AR
OPPNAD. STIRRA EJ IN ISTRALEN OCH BEIRAKTA EJ STRALEN
GENOM OPTISKT INSTRUMENT.

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