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D-E777/EJ721/EJ725
Specifications ............................................................................ 1
1. SERVICING NOTES ................................................... 3
2. GENERAL
Locating the Controls ......................................................... 4
3. DISASSEMBLY
3-1. Cabinet (Rear), Cabinet (Front) .................................. 6
3-2. MD ASSY, Main board ............................................... 6
3-3. Motor ASSY, Turn Table (Spindle) (M901) ............ 7
3-4. Motor ASSY (Sled) (M902),
Optical Pick-up (DAX-23E) ...................................... 7
3-5. Lid, Upper, Switch Unit .......................................... 7
4. ELECTRICAL ADJUSTMENTS ............................. 8
5. DIAGRAMS
5-1. Explanation of IC Terminals ....................................... 9
5-2. Block Diagram ........................................................... 11
5-3. Printed Wiring Boards -“ Main Section (Side A) -“ ... 12
5-4. Printed Wiring Boards -“ Main Section (Side B) -“ ... 13
5-5. Schematic Diagram -“ Main Section (1/2) -“ ............. 14
5-6. Schematic Diagram -“ Main Section (2/2) -“ ............. 15
6. EXPLODED VIEWS
6-1. Cabinet Section ......................................................... 18
6-2. Optical pick-up Section (CDM-3123EBA) .............. 20
7. ELECTRICAL PARTS LIST ................................... 21
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. 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 dam-
aged by heat.
TABLE OF CONTENTS
CAUTION
Use of controls or adjustments or performance of procedures other
than those specified herein may result in hazardous radiation
exposure.
DANGER
Invisible laser radiation when open and interlock failed or defeated.
Avoid direct exposure to beam.
- Abbreviation
AUS : Australian
FR : French HK : Hong Kong
G : German JEW : Tourist
CH : Chinese EE : East European
KR : Korean
E13 : AC220-230V area model
E33 : AC100-240V area model Operating temperature
5°C - 35°C (41°F - 95°F)
Dimensions (w/h/d) (excluding projecting
parts and controls)
Approx. 131.6 x 25.5 x 140.9 mm
(5
1/4 x 1 1/16 x 5 5/8 in.)
Mass (excluding accessories)
Approx. 193 g (6.9 oz)
Supplied accessories
For the area code of the location in which you
purchased the CD player, check the upper left
side of the bar code on the package.
AC power adaptor (1)
Headphones/earphones with remote control (1)
Rechargeable batteries (2)
Battery carrying case (1)
Carrying pouch (1)*
1
External battery case (1)
AC plug adaptor (1)* 2
*1Not supplied with Canadian, AEP, G, UK,
FR and EE models
*
2Supplied with JEW and E33 models
Design and specifications are subject to change
without notice.
