Sony Walkman D-EJ622 Service Manual

D-E666/EJ620/EJ621/EJ622/
SERVICE MANUAL
Ver 1.4 2001.11
with SUPPLEMENT-1
(9-873-048-81)
System
Compact disc digital audio system
Laser diode properties
Material: GaAIAs
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. )
D-A conversion
1-bit quartz time-axis control
Frequency response
+1
20 - 20,000 Hz dB (measured by EIAJ CP-
-2
307)
Output (at 4.5 V input level)
Line output (stereo minijack)
Output level 0.7 V rms at 47 kilohms
Recommended load impedance over 10
kilohms
Headphones (stereo minijack)
Approx. 5 mW + Approx. 5 mW at 16 Ω
(Approx. 1 mW + Approx. 1 mW at 16 Ω)*
*For the customers in France
9-873-048-15 Sony Corporation
Personal Audio Company
2001K0200-1
Published by Sony Engineering Corporation
© 2001.11
EJ623/EJ625/EJ626CK
Photo : D-EJ620

SPECIFICATIONS

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,
• 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):
US, Canadian, C&SA, MX model:
120 V, 60 Hz
AEP, FR, G, EE, E13, G model:
220 - 230 V, 50/60 Hz
UK, 3AEP7 model: 230 - 240 V, 50 Hz
AUS model: 240 V, 50 Hz
JEW, E33 model: 100 - 240 V, 50/60 Hz
HK model: 220 V, 50/60 Hz
AR, CH model: 220 V, 50 Hz
• Sony DCC-E345 car battery cord for use on
car battery : 4.5V DC
D-EJ621/EJ622/EJ625/EJ626CK
Canadian Model
Australian Model
D-EJ621/EJ625/EJ626CK
D-EJ620/EJ621/EJ623/EJ625/EJ626CK
Chinese Model
Tourist Model
Model Name Using Similar Mechanism D-EJ711
CD Mechanism Type
Optical Pick-up Type
Battery life* (approx. hours)
(When you use the CD player on a flat and
stable surface.)
Playing time varies depending on how the CD
player is used.
When using G-PROTECTION function
Tow NC-WMAA
(charged for about 3 hours**)
NH-WM2AA
(charged for about 5 hours**)
Two Sony alkaline batteries
LR6 (SG)
* Measured value by the standard of EIAJ
(Electronic Industries Association of Japan).
** Charging time varies depending on how the
rechargeable battery is used.
Operating temperature
5°C - 35°C (41°F - 95°F)
PORTABLE CD PLAYER
US Model
UK Model
E Model
AEP Model
D-EJ621/EJ625
D-E666
CDM-3123EBA
DAX-23E
on off
10 8
21 18
36 32
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