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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
................................................................. 2
2. GENERAL ............................................................................ 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 (Former Type)-“.................. 12
5-3. Block Diagram -“Audio Section (Former Type)-“.............. 13
5-4. Block Diagram -“Power Supply Section (Former Type)-“.. 14
5-5. Block Diagram -“CD Section (New Type)-“....................... 15
5-6. Block Diagram -“Audio Section (New Type)-“.................. 16
5-7. Block Diagram -“Power Supply Section (New Type)-“...... 17
5-8. Printed Wiring Board -“Main Section (Former Type)-“...... 18
5-9. Printed Wiring Board -“Main Section (New Type)-“.......... 20
5-10. Schematic Diagram -“Main Section (1/2) (Former Type)-“.. 22
5-11. Schematic Diagram -“Main Section (2/2) (Former Type)-“.. 23
5-12. Schematic Diagram -“Main Section (1/2) (New Type)-“...... 24
5-13. Schematic Diagram -“Main Section (2/2) (New Type)-“...... 25
5-14. IC Block Diagrams ............................................................ 26
6. EXPLODED VIEWS
6-1. Cabinet (Front) Section ..................................................... 27
6-2. Cabinet (Rear) Section ...................................................... 28
6-3. CD Mechanism Deck Section (CDM-3123EBA) ............. 29
7. ELECTRICAL PARTS LIST ......................................... 30
D-E220/E225/E226CK
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.
SECTION 1
SERVICE NOTE
NOTE ON PERFORMING SERVICE AND INSPECTION ON
THE MAIN BOARD
The main board has two types, former type and new type.
When performing service and inspection, check the part number
on the main board.
-“ MAIN BOARD (SIDE A) -“
MAIN Board Part No.
Former type : 1-680-271-11
New type : 1-681-329-11
