Sony D-E990 Service Manual

SERVICE MANUAL
Ver 1.0 1999. 10
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 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 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
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
MICROFILM
D-E990/EJ915
Photo: D-E990
Model Name Using Similar Mechanism NEW
CD Mechanism Type
Optical Pick-Up Name

SPECIFICATIONS

• AC power adaptor (DC IN 4.5 V jack):
US/Canadian model: 120 V, 60 Hz
AEP/E13 model: 220 - 230 V, 50/60 Hz
UK model: 230 - 240 V, 50 Hz
Tourist/E33 model: 100 - 240 V, 50/60 Hz
Hong Kong model: 220 V, 50/60 Hz
Chinese model: 220 V, 50 Hz
• Sony DCC-E245 car battery cord for use on
car battery: 4.5 V DC
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 25
(charged for
about 4 hours**)
Battery case (two 40
alkaline batteries)
Rechargeable batteries 62
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.
Operating temperature
5°C - 35°C (41°F - 95°F)
Dimensions (w/h/d) (excluding
projecting parts and controls)
Approx. 127.2 × 19 × 130.1 mm
× × 5
1 3 1
(5 ⁄ ⁄ ⁄ in.)
8 4 8
US Model
Canadian Model
AEP Model
UK Model
E Model
Chinese Model
Tourist Model
US : CDM-3022EBG
Other : CDM-3022EBA
US : DAX-22EG
Other : DAX-22E
Mass (excluding rechargeable
batteries)
Approx. 167.5 g (6.0 oz)
Supplied accessories
AC power adaptor (1)
Headphones/earphones with remote control (1)
Rechargeable batteries (2)
Battery carrying case (2)
Carrying case (1)
Battery case (1)
AC plug adaptor (1)*
* Supplied with Tourist and E33 models
Design and specifications are subject to change
without notice.
• Abbreviation
E13: 220 - 230 V AC area in E model
E33: 100 - 240 V AC area in E model
PORTABLE CD PLAYER
D-EJ915
D-E990