MZ-E909
SERVICE MANUAL
PORTABLE MINIDISC PLAYER
SPECIFICATIONS
US Model
AEP Model
E Model
Tourist Model
Model Name Using Similar Mechanism
NEW
MD Mechanism Type
MT-MZE909-173
Optical Pick-up Mechanism Type
LCX-4E
US and foreign patents licensed from Dolby
Laboratories Licensing Corporation
Ver 1.2 2002.02
with SUPPLEMENT-1
Audio playing system
MiniDisc digital audio system
Laser diode properties
Material: GaAlAs
Wavelength:
λ
= 790 nm
Emission duration: continuous
Laser output: less than 44.6
µ
W*
* 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.
Revolutions
Approx. 300 rpm to 2,700 rpm
Error correction
ACIRC (Advanced Cross Interleave Reed Solomon Code)
Sampling frequency
44.1 kHz
Coding
ATRAC (Adaptive TRansform Acoustic Coding)
ATRAC3: LP2
ATRAC3: LP4
Modulation system
EFM (Eight to Fourteen Modulation)
Number of channels
2 stereo channels
1 monaural channel
Frequency response
20 to 20,000 Hz
±
3 dB
Wow and Flutter
Below measurable limits
Outputs
Headphones/earphones: stereo mini-jack,
maximum output level
5 mW + 5 mW (US model) load impedance
16 ohms,
3 mW + 3 mW (Other models)
load impedance 32 ohms
Power requirements
Nickel metal hydride rechargeable battery
One NH-14WM(A) (supplied): 1.2V, 1,350 mAh
One LR6 (size AA) battery (not supplied)
External power jack (for the rechargeable
battery): Power rating 3V DC
Battery life
1)
(Unit: Approx. hours) (JEITA
2)
)
Batteries
SP Stereo
LP2
LP4
(normal)
Stereo
Stereo
Ni-MH
38
45
53
rechargeable
battery
NH-14WM(A)
3)
LR6 (SG)
60
70
83
Sony Alkaline
dry battery
4)
LR6 (SG)
4)
and
100
122
145
NH-14WM(A)
3)
1)
Measured with the power save function on (see
“Preserving battery power”) is on.
2)
Measured in accordance with the JEITA (Japan
Electronics and Information Technology
Industries Association) standard (using a Sony
MDW-series Mini-disc).
3)
With a fully charged battery
4)
When using a Sony LR6 (SG) “STAMINA” alkaline dry
battery (produced in Japan).
Note
The battery operation may be shorter than that
specified, depending on the operating conditions,
the temperature of the location, and the type of
battery being used.
9-873-304-03
2002B0200-1
© 2002.02
Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporation
Summary of Contents for Walkman MZ-E909
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