Sony Walkman D-E220, Walkman D-E225, Walkman D-E226CK Service 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
2
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
À 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
3
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic breakdown because of the potential difference generated by
the charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
Precautions for Checking Emission of Laser Diode
Laser light of the equipment is focused by the object lens in the
optical pick-up so that the light focuses on the reflection surface
of the disc. Therefore, be sure to keep your eyes more then 30 cm
apart from the object lens when you check the emission of laser
diode.
Before Replacing the Optical Pick-Up Block
Please be sure to check throughly the parameters as par the “Optical Pick-Up Block Checking Procedures” (Part No.: 9-960-027-
11) issued separately before replacing the optical pick-up block.
Note and specifications required to check are given below.
• FOK output : IC601 eg pin
When checking FOK, remove the lead wire to disc motor.
• RF signal P-to-P value : 0.45 ± 0.1 Vp-p
• The repairing grating holder is impossible.
Laser Diode Checking Methods
During normal operation of the equipment, emission of the laser
diode is prohibited unless the upper lid is closed while turning ON
the S801. (push switch type)
The following two checking methods for the laser diode are
operable.
• Method:
Emission of the laser diode is visually checked.
1. Open the upper lid.
2. With a disc not set, turn on the S801 with a screwdriver having a
thin tip as shown in Fig.1.
or TAP802 is shorted as shown in Fig.2.
Note: Do not push the detection lever strongly, or it may be bent
or damaged.
3. Press the > N button.
4. Observing the objective lens, check that the laser diode emits
light.
When the laser diode does not emit light, automatic power
control circuit or optical pick-up is faulty.
In this operation, the objective lens will move up and down 5
times along with inward motion for the focus search.
Fig. 2
Fig. 1
detection lever
detection lever
main board
S801
S803
HOLD
OFF ON
TAP802
– MAIN BOARD – (SIDE A)
OPEN
S801
– MAIN BOARD – (SIDE B)
D-E220/E225/E226CK
4
D-E220/E225/E226CK
SECTION 2
GENERAL
This section is extracted
from instruction manual.
5
D-E220/E225/E226CK
6
D-E220/E225/E226CK
7
D-E220/E225/E226CK
8
D-E220/E225/E226CK
Note : Follow the disassembly procedure in the numerical order given.
3-2. LID ASSY, UPPER
SECTION 3
DISASSEMBLY
3-1. “LID, BATTERY CASE”, CABINET (FRONT) ASSY
1
B 2x10
3
B 2x10
4
claws
0
cabinet (front) assy
5
claws
6
claws
7
claws
8
9
2
lid, battery case
boss
1
claws
2
lid assy, upper
cabinet (front) ass
y
9
D-E220/E225/E226CK
3-3. MAIN BOARD, MD ASSY
3-4. OPTICAL PICK-UP, MOTOR
1
CN501
4
MD assy
5
MAIN board
cabinet (rear) assy
terminal (link 3), battery (BT401)(E225)
terminal (link 4), battery (BT401)(E220/E226CK
)
terminal (+.–), battery (BT400)
terminal (–), battery (BT402)
S803
2
CN502
3
CN503
1
B 1.7x5
3
B 1.7x5
6
P 1.4x3.5
8
B 1.4x2.3
9
rack
7
retainer, shaf
t
0
screw (feed) assy
qs
shaft, standard
qa
pick-up block, optical
4
cover, gear
2
motor assy, turntable (M502)
5
motor assy, sled (M501)
chassis
gear (B)
10
D-E220/E225/E226CK
RF level :
0.45 ± 0.1 Vp-p
VOLT/DIV : 20 mV (10 : 1 probe in use)
TIME/DIV : 500 nS
SECTION 4
ELECTRICAL ADJUSTMENTS
CD section adjustments are done automatically in this set.
In case of operation check, confirm that focus bias.
4-1. FOCUS BIAS CHECK
1. Connect the oscilloscope between TP629 (RF) and GND on
main board.
2. Insert the disc (YEDS-18). (Part No. : 3-702-101-01)
3. Press the > N button.
4. Confirm that the oscilloscope waveform is as shown in the
figure below. (eye pattern)
A good eye pattern means that the diamond shape ( ) in the
center of the waveform can be clearly distinguished.
• RF signal reference waveform (eye pattern)
Test Points:
When observing the eye pattern, set the oscilloscope for AC range
and raise vertical sensitivity.
S804
ON
OFF
ESP
E225
TP629
– MAIN BOARD – (SIDE B)
D-E220/E225/E226CK
11 11
SECTION 5
DIAGRAMS
5-1. IC PIN DESCRIPTION
• IC801 TMP88CM22AF-3A51 (SYSTEM CONTROLLER) (FORMER TYPE)
• IC801 TMP88CM22F-Z3-2 (SYSTEM CONTROLLER) (NEW TYPE)
Pin No. Pin Name I/O Pin Description
1 VSS — Ground
2 RESERVE — Not used (Open)
3 FOK_I I Focus OK signal input from CXD3028R (IC601) (Former Type) or CXD3037R (IC601) (New Type).
4 AGCPWM_O O AGC control pulse output (Open)
5, 6 RESERVE — Not used. (Open)
7 AMUTE_O O Analog audio muting ON/OFF signal control signal output (H: Mute ON)
8 RESERVE — Not used. (Open)
9 XRST_O O Reset signal output to CXD3028R (IC601). (L: Reset)
10 SCK_O O
Serial data transfer clock signal output to CXD3028R (IC601) (Former Type) or CXD3037R (IC601)
(New Type).
11 (SENS) MSDTI_I I Serial data input from CXD3028R (IC601) (Former Type) or CXD3037R (IC601) (New Type).
12 MSDTO_O O Serial data output to CXD3028R (IC601) (Former Type) or CXD3037R (IC601) (New Type).
13 WAKEUP_O O WAKE-UP control signal output (for system standby reset)
14 AD_SEL I Plug-in detection signal input
15 AD_CHGMNT I Battery charge voltage detection input from TB2125F (IC401).
16 RESERVE — Fixed at H.
17 AD_BATMNT I Battery voltage detection input
18 AD_KEY1 I Key input from switch unit (A/D input)
19 ADRMKEY I Key input from headphones with remote controller (A/D input).
20 AD_DCINMNT I DC input voltage detection input (A/D input) DC input jack use/no-use detect input
21 WP_OPEN I CD door open/close detection input
22 VREFL I Reference voltage (0 V) input for A/D converter. (Connect to ground.)
23 VREFH I Reference voltage (+2 V) input for A/D converter.
24 VDD — Power supply pin (+2 V)
25 SCOR_I I
Sub code sync detection input from CXD3028R (IC601) (Former Type) or CXD3037R (IC601)
(New Type).
26 GRSCOR_I I GRSCOR signal input
27 FG_I I FG pulse input
28 BEEP_O O Beep sound output to TA2120FN (IC302) (Former Type) or AN17880A-EAL (IC302) (New Type).
29 – 32 RESERVE — Not used. (Open)
33 XWRE0 O XWRE signal output (Open)
34 XQOK O XQOK signal output (Open)
35 WFCK_I I WFCK signal input
36 COMPON I Key input from ESP switch (S804).
37 DBB I MEGA BASS switch input (L: OFF, H: ON) (Open)
38 RESERVE — Not used. (Open)
39 HOLD_I I HOLD switch (S803) input (L: HOLD on, H: HOLD off)
40 RESERVE — Not used. (Open)
41 BATTEST O Charging current control signal output (Open)
42 XHGON_O O Optical pick-up VCC control signal output (L: ON) (Open)
43 XLAT_O O
Serial data latch pulse output to CXD3028R (IC601) (Former Type) or CXD3037R (IC601)
(New Type). (for ESP)
44 XSOE_O O Output enable signal output (for ESP)
45 VOLUME_IC_LATCH_O O Headphone AMP ON/OFF control signal output (L: ON) (Fixed at H.)
46 XPOWLT_O O Latch output to TB2125F (IC401).
47 RESERVE — Not used (Open)
48 XAPC_OFF_O O APC mute signal output (L: mute)
49 SEG15 O LCD drive segment output (Open)
50 – 62 SEG14 – 2 O LCD drive segment output
Pin No. Pin Name I/O Pin Description
63 SEG1 O LCD drive segment output (Open)
64 SEG0 O LCD drive segment output
65 – 68 COM3 – 0 O LCD drive common output
69 – 71 V3 – 1 O LCD drive bias output
72, 73 C1, 0 O Capacitor connected terminal of LCD driver for voltage-up.
74 STOP O Stop signal output (Connect to ground.)
75 TEST I Test terminal for IC. (Fixed at L.)
76 XHPSW_O O Headphone AMP ON/OFF control signal output (L: ON) (Open)
77 XLIGHT_O O LCD back light control signal output to LCD. (Open)
78 RESET_I I System reset signal input from TB2125F (IC401). (L: Reset)
79 XIN_I I Oscillation input
80 XOUT O Oscillation output (Open)
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