Maintenance
To clean the casing
Use a soft cloth slightly moistened in water or
a mild detergent solution. Do not use alcohol,
benzine or thinner.
To clean the terminals
If the terminals on the charging stand become
dirty, the battery may not be charged properly.
Clean the terminals with a cotton swab or a
dry cloth periodically as illustrated below.
Terminals
Specifications
System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs
Wavelength:
λ
= 770 - 800 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 JEITA)
Output (at 3 V input level)
Line output (stereo minijack)
Output level 0.7 V rms at 47 k
Ω
Recommended load impedance over 10 k
Ω
Headphones (stereo minijack)
Approx. 5 mW + Approx. 5 mW at 16
Ω
(Approx. 1.5 mW + Approx. 1.5 mW at 16
Ω
)*
*For the customers in Europe
Optical digital output (optical output connector)
Output level: –21 - –15 dBm
Wavelength: 630 - 690 nm at peak level
Power requirements
• Sony NH-14WM rechargeable battery:
1.2 V DC × 1
• LR6 (size AA) battery: 1.5 V DC × 1
• AC power adaptor (DC IN 3 V jack):
220 V, 50 Hz (Model for China)
120 V, 60 Hz (Model for Mexico)
• Rated current: 1 A
Operating temperature
5°C - 35°C (41°F - 95°F)
Dimensions (w/h/d) (excluding projecting parts
and controls)
Approx. 131.5 × 17.1 × 135.2 mm
(5
1
⁄
4
×
11
⁄
16
× 5
3
⁄
8
in.)
Mass (excluding accessories)
Approx. 165 g (5.9 oz.)
US and foreign patents licensed from Dolby
Laboratories.
Design and specifications are subject to change
without notice.
35
Additional Information
D-NE820/NE820LS.GB.2-318-334-11(1)
Summary of Contents for Walkman D-NE820
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