Sony D E220,225,226
D-E220/E225/E226CK
SERVICE MANUAL
Ver 1.0 2000. 12
CD player System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs Wavelength: λ = 780 nm Emission duration: Continuous Laser output: Less than 44.6 µW (This output is the value measured at a distance of 200 mm from the objective lens surface on the optical pick-up block with 7 mm aperture.)
Error correction
Sony Super Strategy Cross Interleave Reed Solomon Code
D-A conversion
1-bit quartz time-axis control
Frequency response
20 - 20,000 Hz +1/-3 dB (measured by EIAJ CP-307)
Output (at 4.5 V input level)
Headphones (stereo minijack) Approx. 12 mW + Approx. 12 mW at 16 ohms
(Photo: D-E220 (Silver))
| Model Name Using Similar Mechanism | NEW |
|---|---|
| CD Mechanism Type | CDM-3123EBA |
| Optical Pick-up Name | DAX-23E |
Table Caption: This table details a CD mechanism, specifically model CDM-3123EBA, which utilizes an optical pick-up named DAX-23E.
SPECIFICATIONS
General
Power requirements
For the area code of the model you purchased, check the upper left side of the bar code on the package.
- ¥ Two sony NC-WMAA rechargeable batteries: 2.4 V DC
- ¥ Two sony NH-WM2AA rechargeable batteries: 2.4 V DC
- ¥ Two LR6 (size AA) batteries: 3 V DC
- ¥ AC power adaptor (DC IN 4.5 V jack): 120 V, 60Hz
D-E220/E226CK
Battery life (approx. hours) (EIAJ*)
| Battery life varies depending on how used. | the player is | |
|---|---|---|
| Two sony alkaline | 25 | 24 |
| batteries LR6(SG) |
Table Caption: This table presents battery life data, specifically showing that two Sony alkaline batteries, LR6(SG) type, provide 25 units of life when used in one way and 24 units when used differently. The battery life is stated to vary depending on usage.
- Measured value by the standard of EIAJ (Electronic Industries Association of Japan). (When the unit is used on a flat and stable place.)
- 1 -
US Model
D-E225 Battery life (approx. hours) (EIAJ*)
| Battery life varies depending on how the player is used. | ||
|---|---|---|
| ESP OFF | ESP ON | |
| Two NC-WMAA (charged about 3 hours**) | 8 | 8 |
| Two NH-WM2AA (charged about 8 hours**) | 14.5 | 14 |
| Two sony alkaline batteries LR6(SG) | 25 | 24 |
Table Caption: This table shows the battery life in hours for a player using different battery types and with Electronic Stability Program (ESP) turned on or off. The battery life varies significantly based on the battery type and whether ESP is active.
- Measured value by the standard of EIAJ (Electronic Industries Association of Japan). (When the unit is used on a flat and stable place.)
-
** Charging time varies depending on how the rechargeable battery is used.
-
Continued on next page -
PORTABLE CD PLAYER
| Dimensions (w/h/d) (without projecting parts and controls) Approx. 130 × 26.3 × 150.5mm (5 1/8 × 1 1/16 × 6 in.) Mass (excluding accessories) |
|---|
| Approx. 205 g (7.3 oz.) |
| Operating temperature 5¡C - 35¡C (41¡F - 95¡C) |
| Supplied accessories |
| For the area code of the model you purchased, check the upper left side of the bar code on the package. |
| D-E220 |
| Headphones (1) |
| D-E225 AC power adaptor (1) |
| Headphones with remote control |
| (1) |
| Rechargeable batteries (2) Battery carrying cases (1) |
| D-E226CK |
| AC power adaptor (1) Headphones (1) |
| Car connecting pack |
| Car battery cord (1) |
| Spiral tube (1) |
| Velcro tape (3) |
| and specifications are subject to change |
| Design without notice. |
| (1) |
Table Caption: This table provides specifications and accessories for different models of a portable CD player, including dimensions, weight, operating temperature, and a list of included items for each model.
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 Upper Assy .............................. | 8 |
| 3-2. | Lid Assy, Upper ................................................................... | 8 |
| 3-3. | Main Board, MDAssy ........................................................ | 9 |
| 4. ELECTRICAL ADJUSTMENTS | ||
| 4-1. | Focus Bias Check.............................................................. | 10 |
| 5. DIAGRAMS | ||
| 5-1. | IC Pin Description ............................................................. | 11 |
| 5-2. | Block Diagram -CDSection-........................................... | |
| 5-3. | Block Diagram -Audio Section- | ...................................... |
| 5-4. | Block Diagram -Power Supply Section-.......................... | |
| 5-5. | Printed Wiring Board -Main Section- | .............................. |
| 5-6. | Schematic Diagram -Main Section (1/2)- | ........................ |
| 5-7. | Schematic Diagram -Main Section (2/2)- ........................ | |
| 5-8. | IC Block Diagrams............................................................ | 27 |
| 6. EXPLODEDVIEWS | ||
| 6-1. | Cabinet (Front) Section ..................................................... | 29 |
| 6-2. | Cabinet (Lower) Section ................................................... | 30 |
| 6-3. | CD Mechanism Deck Section (CDM-3123EBA) ............. | 31 |
| 7. | ELECTRICAL PARTS LIST | ......................................... 32 |
Table Caption: This table is a table of contents for a service manual, outlining sections for general information, disassembly, electrical adjustments, diagrams, exploded views, and a parts list. Each entry indicates the section number, a brief description of the content, and the corresponding page number.
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
