Sony Walkman D-EJ751 Service Manual

D-EJ750/EJ751/EJ753/EJ755/EJ756CK/EJ758CK
QQ
3 7 63 1515 0
SERVICE MANUAL
Ver 1.0 2002.02
TE
L 13942296513
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
+1
20 - 20 000 Hz dB (measured by JEITA CP-307)
–2
Output (at 4.5 V input level)
Line output (stereo minijack)
Output level 0.7 V rms at 47 k
Recommended load impedance over 10 k
Headphones (stereo minijack)
Approx.5 mW + Approx. 5 mW at 16 Ω
(Approx. 0.5 mW + Approx. 0.5 mW at 16 Ω)*
*For the customers in France
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):
www
US, CND, C&SA, MX model: 120 V, 60 Hz
AEP, FR, G, EE, E13 mode : 220 - 230 V, 50/60 Hz
UK model: 230 - 240 V, 50 Hz
AUS model: 240 V, 50 Hz
CH model: 220 V, 50 Hz
.
Sony Corporation
9-873-580-01
2002B0200-1 Personal Audio Company
© 2002.02 Pubulished by Sony Engineering Corporation
http://www.xiaoyu163.com
Photo : D-EJ755
Battery life* (approx. hours)
(When you use the CD player on a flat and stable sur-
face.)
Playing time varies depending on how the CD player is
used.
When using
Two NC-WMAA
(charged for
about 3 hours**)
NH-WM2AA
(charged for
about 5 hours**)
Two Sony alkaline
batteries LR6(SG)
(produced in Japan)
* Measured value by the standard of JEITA (Japan
Electronics and Information Technology
Industries Association).
** Charging time varies depending on how the
rechargeable battery is used.
Operating temperature
5°C - 35°C (41°F - 95°F)
Dimensions (w/h/d) (excluding projecting
parts and controls)
Approx. 135.5 × 29.2 × 137.4 mm
× 1
3
(5 ⁄
8
Mass (excluding accessories)
Approx. 185 g (6.6 oz.)
Design and specifications are subject to change
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without notice.
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http://www.xiaoyu163.com
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Model Name Using Similar Mechanism D-E350
CD Mechanism Type
Optical Pick-up Type
Q Q

SPECIFICATIONS

3 6 7 1 3 1 5
G-PROTECTION function
on off
12 10
25 22
48 38
× 5
3 1
⁄ ⁄ in.)
16 2
co
.
9 4 2 8
US Model
D-EJ756CK/EJ758CK
Canadian Model
UK Model
D-EJ751/EJ755/EJ758CK
AEP Model
D-EJ750/EJ751/EJ753/EJ755/EJ758CK
Australian Model
E Model
D-EJ751/EJ758CK
Chinese Model
CDM-3125ER
DAX-25E
0 5 8 2 9 9 4 2 8
Accessories
Supplied accessories
For the area code of the location in which you
purchased the CD player, check the upper left
side of the bar code on the package.
–
AC power adaptor (1)
–
Headphones/earphones
with remote control (1)
Headphones/
a
earphones (1)
–
Rechargeable
batteries (2)
–
Battery carrying case (1)
* 1 Supplied with MX models
* 2 Not supplied with MX models
D-EJ756CK/EJ758CK
AC power adaptor (1)
Headphones/earphones (1)
Rotary commander (1)
Car battery cord (1)
Car connecting pack (1)
Velcro tape for the CD player (4)
Velcro tape for the rotary commander (2)
Hand strap (1)
m
PORTABLE CD PLAYER
9 9
D-EJ751
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1
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–
2
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