Sony Walkman D-EJ01 Service Manual

SERVICE MANUAL
Ver 1.3 2001. 03
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.)
D-A conversion
1-bit quartz time-axis control
Frequency response
20 - 20,000 Hz +1/–2 dB
(measured by EIAJ CP-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. 15 mW + Approx. 15 mW
at 16 ohms
(Approx. 3 mW + Approx. 3 mW
at 16 ohms) *
* For the customers in France
Optical digital output
(optical output connector)
Output level: –21 - –15 dBm
Wavelength: 630 - 690 nm at peak level
Sony Corporation
9-927-142-12
2001C0400-1 Audio Entertainment Group
©2001. 3 General Engineering Dept.
D-E01/EJ01
Photo: D-E01
Model Name Using Similar Mechanism
CD Mechanism Type
Optical Pick-up Name
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 NH-14WM rechargeable batteries:
2.4 V DC
• Two LR6 (size AA) batteries: 3 V DC
• AC power adaptor (DC IN 4.5 V jack):
US, CND model: 120 V, 60 Hz
AEP, FR, G, E13 model:
220 - 230 V, 50/60 Hz
UK model: 230 - 240V, 50 Hz
AUS model: 240 V, 50 Hz
E01/E33 model: 100 - 240 V, 50/60 Hz
EJ01: HK model: 220 V, 50/60 Hz
CH model: 220 V, 50 Hz
• Sony DCC-E245 car battery cord for use on
car battery: 4.5 V DC
– 1 –
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Chinese Model
Tourist Model
NEW
CDM-3021EBA
DAX-21E
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.
Two NH-14WM
(charged for about 4 hours **)
Battery case
(two alkaline batteries)
Rechargeable batteries
NH-14WM and battery case
(two alkaline batteries)
* Measured value by the standard of EIAJ
(Electronic Industries Association of Japan).
** Charging time varies depending on how the
rechargeable battery is used.
– Continued on next page –
PORTABLE CD PLAYER
D-EJ01
D-E01
25
40
62