Sony cdp c 250z cdp c 350z cdp c e305 cdp c e405

Page 2

The following caution label is located inside of the unit.

CAUTION ; INVISIBLE LASER RADIATION WHEN OPEN,
AVOID EXPOSURE TO BEAM.

ADVARSEL: USYNLIG LASERSTRALING VED ABNING NAR
SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION.
UNDGA uos IETTELSE FOR STRALING.

V ARO! ; AVATTAESSA JA SUOJALUKITUS OHITETTAESSA
* DLET ALTTIINA LASERSATEILYLLE.

VA I : LASERSTRALINO NAR DENNA DEL AR OPPNAD
RN NG OCH SPARREN AR URXOPPLAD.

V ; USYNLIG LASERSTRALING NAR DEKSEL APNES
AD ERSEL UNNGA EKSPoNERING FOR STRALEN.

This appliance is classified
as a CLASS 1 LASER
product.

The CLASS 1 LASER
PRODUCT MARKING is
located on the rear exterior.

CLASS 1 LASER PRODUCT
LUOKAN 1 MSERLAITE

KLASS 1 LASERAPPAFIAT

CAUTION

Use of controls or adjustments or performance of
procedures other than those specified herein may result in
hazardous radiation exposure.

SAFETY-RELATED COMPONENT WARNING !!

COMPONENTS IDENTIFIED BY MARK A OR DOTTED
LINE WITH MARK A ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.

TABLE OF CONTENTS

Section Tit e Page
SECTION 1. GENERAL ................................................ 5
SECTION 2. DISASSEMBLY

2-1. Case, Bottom Plate and Front Panel .................................. 6
2-2. Back Panel and Disc Table ................................................ 6
2-3. Optical Pick-up Block Assembly ....................................... 7
2-4. Bracket (Gear) Assembly ................................................... 7

SECTION 3. ELECTRICAL BLOCK CHECKING....8

SECTION 4. DIAGRAMS

4-1. Circuit Boards Location ................................................... 10
4-2. Printed Wiring Board - BD Section - ......................... 11
4-3. Schematic Diagram - BD Section ~- ............................ 13
4-4. IC Block Diagrams .......................................................... 15
4-5. Printed Wiring Board - Main Section - ...................... 17
4-6. Schematic Diagram - Main Section - ......................... 21
4-7. IC Pin Functions

- IClOl Digital Signal Processor (CXD2545Q) .............. 24

' IC303 System Control (CXP82320-064Q) ................... 27

SECTION 5. EXPLODED VIEWS

5-1. Front Panel and Case Section .......................................... 28
52. Back Panel and Disk Table Section ............................... 29
5-3. Chassis Section ................................................................. 30
5-4. Base Unit Section (BU-5BD20) ...................................... 31
SECTION 6. ELECTRICAL PARTS LIST ............... 32

ATTENTION Au COMPOSANT AYANT RAPPORT

A LA SECURITEII
LES COMPoSANTs IDENTIFIES PAR UNE MARQUE A
SUR LES DIAGRAMMES SCHEMATIQUES ET LA
LISTE DES PIECES soNT CRITIQUES POUR LA
SECURITE DE FONCTIONNEMENT. NE REMPLACER
CES COMPOSANTS QUE PAR DES PIECES SONY
DONT LES NUMEROS SONT DONNES DANS CE
MANUEL ou DANS LES SUPPLEMENTS PUBLIES
PAR SONY.