Sony Walkman D-E220 User Manual

1
Model Name Using Similar Mechanism NEW
CD Mechanism Type CDM-3123EBA
Optical Pick-up Name DAX-23E
SERVICE MANUAL
US Model
E Model
D-E220/E225/E226CK
Canadian Model
UK Model
Australian Model
D-E226CK
AEP Model
D-E220/E226CK
Chinese Model
D-E225
D-E220/E225/E226CK
PORTABLE CD PLAYER
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
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 (D-E225): 2.4 V DC
• Two sony NH-WM2AA rechargeable
batteries (D-E225): 2.4 V DC
• Two LR6 (size AA) batteries: 3 V DC
• AC power adaptor (DC IN 4.5 V jack):
120 V, 60Hz (US, CND, E92 model)
220 - 230 V, 50/60 Hz (AEP, FR, EE,
E13 model)
230 - 240 V, 50 Hz (UK model)
240 V, 50 Hz (AUS model)
100 - 240 V, 50/60 Hz (E33 model)
220 V, 50/60 Hz (HK model)
220 V, 50 Hz (CH model)
SPECIFICATIONS
D-E220/E226CK
Battery life (approx. hours) (EIAJ*)
Battery life varies depending on how the player is
used.
ESP OFF ESP ON
Two sony alkaline 25 24
batteries LR6(SG)
* Measured value by the standard of EIAJ
(Electronic Industries Association of Japan).
(When the unit is used on a flat and stable place.)
D-E225
Battery life (approx. hours) (EIAJ*)
Battery life varies depending on how the player is
used.
ESP OFF ESP ON
Two NC-WMAA 8 8
(charged
about 3 hours**)
Two NH-WM2AA 14.5 14
(charged
about 8 hours**)
Two sony alkaline 25 24
batteries LR6(SG)
* 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.
Dimensions (w/h/d) (without projecting
parts and controls)
Approx. 130 × 26.3 × 150.5 mm
(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°F)
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 NC-WMAA (2)
Battery carrying cases (1)
D-E226CK
AC power adaptor (1)
Headphones (1)
Car connecting pack (1)
Car battery cord (1)
Spiral tube (1)
Velcro tape (3)
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
E33 : AC 100 - 240V area in E model
HK : Hong Kong model
CH : Chinese model
(Photo: D-E220 (Silver))
Ver 1.1 2001.04
9-873-044-12
2001D0400-1
© 2001.4
Sony Corporation
Personal Audio Company
Shinagawa Tec Service Manual Production Group

Sony Walkman D-E220 Specifications

General

Type	Portable CD Player
Disc format	CD, CD-R, CD-RW
Playback Formats	CD-DA
Frequency Response	20 Hz - 20 kHz
Signal-to-Noise Ratio	90 dB
Features	ESP (Electronic Shock Protection)
Power source	2 x AA batteries
Output	Headphones

Summary

SECTION 1 SERVICE NOTE

Optical Pick-up Block Handling and Checks

Notes and methods for safely handling and testing the optical pick-up block.

SECTION 2 GENERAL

Playing a CD Right Away

Guide for connecting, placing a CD, and starting playback.

Other Operations

Explains play modes, ESP, AVLS, MEGA BASS, and stereo connections.

Power Sources and Car Use

Details on using dry batteries, car battery connection, and battery life.

Rechargeable Battery Usage

Instructions for charging, using, and checking rechargeable batteries.

SECTION 3 DISASSEMBLY

Cabinet and Lid Disassembly

Step-by-step guide for disassembling the player's outer casing and lid.

Main Board and Optical Pick-up Disassembly

Procedures for removing the main board and optical pick-up module.

SECTION 4 ELECTRICAL ADJUSTMENTS

Focus Bias Check Procedure

Steps to check and confirm the focus bias using an oscilloscope waveform.

SECTION 5 DIAGRAMS

IC Pin Description

Detailed pin assignments and functions for key IC components.

CD Section Block Diagrams (Former Type)

Block diagram illustrating the signal flow within the CD playback section.

Audio Section Block Diagrams (Former Type)

Block diagram showing the audio signal processing path.

Power Supply Section Block Diagrams (Former Type)

Block diagram detailing the power supply circuits and control.

CD Section Block Diagrams (New Type)

Block diagram illustrating the signal flow within the CD playback section for new models.

Audio Section Block Diagrams (New Type)

Block diagram showing the audio signal processing path for new models.

Power Supply Section Block Diagrams (New Type)

Block diagram detailing power supply circuits for new models.

Printed Wiring Board - Main Section (Former Type)

Component layout diagram for the main board (Former Type).

Printed Wiring Board - Main Section (New Type)

Component layout diagram for the main board (New Type).

Schematic Diagram - Main Section (1/2) (Former Type)

Circuit schematic for the main board (Former Type), part 1.

Schematic Diagram - Main Section (2/2) (Former Type)

Circuit schematic for the main board (Former Type), part 2.

Schematic Diagram - Main Section (1/2) (New Type)

Circuit schematic for the main board (New Type), part 1.

Schematic Diagram - Main Section (2/2) (New Type)

Circuit schematic for the main board (New Type), part 2.

IC Block Diagrams

Functional block diagrams for major integrated circuits.

SECTION 6 EXPLODED VIEWS

Cabinet (Front) Section Exploded View

Diagram showing disassembled parts of the front cabinet.

Cabinet (Rear) Section Exploded View

Diagram illustrating the disassembled components of the rear cabinet.

CD Mechanism Deck Section Exploded View

Exploded view of the CD mechanism deck, including motors and pick-up.

SECTION 7 ELECTRICAL PARTS LIST

Capacitors, Transistors, and Resistors

List of capacitors, transistors, and resistors used in the device.

Connectors, Diodes, and ICs

List of connectors, diodes, and integrated circuits with part numbers.

Coils and LCD

List of coils, liquid crystal display components, and related parts.

Resistors and Switches

List of resistors and switches with their specifications.

Varistors, Vibrators, and Accessories

List of varistors, vibrators, miscellaneous, and accessory items.

REVISION HISTORY