— 2 —
TABLE OF CONTENTS
Section
Title
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
• IC101 Digital Signal Processor (CXD2545Q) .............. 24
• IC303 System Control (CXP82320-064Q) ................... 27
SECTION 5. EXPLODED VIEWS
5-1.
Front Panel and Case Section .......................................... 28
5-2.
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
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY MARK
!
OR DOTTED
LINE WITH MARK
!
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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE
!
S U R L E S D I A G R A M M E S S C H É M A T I Q U E S E T L A
LISTE DES PIÈCES SONT CRITIQUES POUR LA
SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER
CES COMPOSANTS QUE PAR DES PIÈCES SONY
D O N T L E S N U M É R O S S O N T D O N N É S D A N S C E
MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS
PAR SONY.
The following caution label is located inside of the unit.
This appliance is classified
as a CLASS 1 LASER
product.
The CLASS 1 LASER
PRODUCT MARKING is
located on the rear exterior.
CAUTION
Use of controls or adjustments or performance of
procedures other than those specified herein may result in
hazardous radiation exposure.
