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Flexible Circuit Board Repairing
-Keep the temperature of the soldering iron around 270°C during
repairing.
-Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
-Be careful not to apply force on the conductor when soldering
or unsoldering.
Notes on Chip Component Replacement
-Never reuse a disconnected chip component.
-Notice that the minus side of a tantalum capacitor may be
damaged by heat.
TABLE OF CONTENTS
1. SERVICE NOTE
................................................................. 3
2. GENERAL
Playing a CD right away! ........................................................ 4
3. DISASSEMBLY
3-1. Lid, Battery Case, Cabinet (Front) Assy .......................... 8
3-2. Lid Assy, Upper ................................................................... 8
3-3. Main Board, MD Assy ........................................................ 9
3-4. Optical Pick-up, Motor ....................................................... 9
4. ELECTRICAL ADJUSTMENTS
4-1. Focus Bias Check .............................................................. 10
5. DIAGRAMS
5-1. IC Pin Description ............................................................. 11
5-2. Block Diagram -“CD Section-“........................................... 13
5-3. Block Diagram -“Audio Section-“...................................... 14
5-4. Block Diagram -“Power Supply Section-“.......................... 15
5-5. Printed Wiring Board -“Main Section-“.............................. 16
5-6. Schematic Diagram -“Main Section (1/2)-“......................... 18
5-7. Schematic Diagram -“Main Section (2/2)-“......................... 19
5-8. IC Block Diagrams ............................................................ 20
6. EXPLODED VIEWS
6-1. Cabinet (Front) Section ..................................................... 21
6-2. Cabinet (Lower) Section ................................................... 22
6-3. CD Mechanism Deck Section (CDM-3123EBA) ............. 23
7. ELECTRICAL PARTS LIST ......................................... 24
Supplied accessories
For the area code of the model you purchased,
check the upper left side of the bar code on the
package.
D-E221
AC power adaptor (1)
Headphones/earphones (1)
AC plug adaptor (1)*
*Supplied with E33 and EA3 models
D-E223
AC power adaptor (1)
Headphones/earphones (1)
Rechargeable batteries (2)
Battery carrying case (1)
Design and specifications are subject to change
without notice.
-Abbreviation
CND : Canadian model
E92 : AC 120V area in E model
FR : France model
EE : East European model
E13 : AC 220 - 230V area in E model
AUS : Australian model
MX : Mexican model
G : German model
AR : Argentine model
TW : Taiwan model
D-E221/E223
ATTENTION AU COMPOSANT AYANT RAPPORT
Ã- LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 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.
