D-EJ750/EJ751/EJ753/EJ755/EJ756CK/EJ758CK
TABLE OF CONTENTS
Y AbbreviationSpecifications ............................................................................ 1
AUS : Australian
FR: French
1. SERVICING NOTES...................................................3
EE: East European
CND : Canadian
CH: Chinese2. GENERAL
MX: MexicoLocating the Controls......................................................... 3
C&SA : Central and South America
E13: AC220-230V area model
3. DISASSEMBLY
3-1. Upper Lid Sub ASSY, Cabinet (Front) Sub ASSY ..... 4
3-2. MD ASSY, Main Board .............................................. 5
3-3. OMotor ASSY, Turn Table (Spindle) (M901)�............ 5
DANGER3-4. OMotor ASSY (Sled) (M902)�,
Invisible laser radiation when open and interlock failed or defeated. Optical Pick-up (DAX-25E) ...................................... 6
Avoid direct exposure to beam.
4. ELECTRICAL ADJUSTMENS...............................7
CAUTION
Use of controls or adjustments or performance of procedures other5.DIAGRAMS
than those specified herein may result in hazardous radiation5-1. Explanation of IC Terminals....................................... 8
exposure.5-2. Block Diagram.......................................................... 13
5-3. Printed Wiring Boards .............................................. 14
Laser component in this product is capable of emitting
5-4. Schematic Diagram �MAIN SECTION (1/3)� ....... 15
radiation exceeding the limit for Class 1.
5-5. Schematic Diagram �MAIN SECTION (2/3)� ....... 16
This Compact Disc player is5-6. Schematic Diagram �MAIN SECTION (3/3)� ....... 17
classified as a CLASS 1 LASER
product.
The CLASS 1 LASER6. EXPLODED VIEWS
PRODUCT label is located on 6-1. Upper Lid Section..................................................... 19
the rear exterior.6-2. Cabinet Section ......................................................... 20
6-3. Optical pick-up Section (CDM-3125ER) ................. 21
Flexible Circuit Board Repairing
Y Keep the temperature of the soldering iron around 270°C during
7. ELECTRICAL PARTS LIST...................................22
repairing.
Y Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
Y Be careful not to apply force on the conductor when soldering or
SAFETY-RELATED COMPONENT WARNING!!
unsoldering.
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
Notes on chip component replacementWITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE
Y Never reuse a disconnected chip component.PARTS LIST ARE CRITICAL TO SAFE OPERATION.
Y Notice that the minus side of a tantalum capacitor may be dam-REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
aged by heat.PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
� LA S?CURIT?!
LES COMPOSANTS IDENTIFI?S PAR UNE MARQUE 0 SUR LES
DIAGRAMMES SCH?MATIQUES ET LA LISTE DES PIéCES
SONT CRITIQUES POUR LA S?CURIT? DE FONCTIONNEMENT.
NE REMPLACER CES COMPOSANTS QUE PAR DES PIéCES
SONY DONT LES NUM?ROS SONT DONN?S DANS CE MANUEL
OU DANS LES SUPPL?MENTS PUBLI?S PAR SONY.
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ACEC
