SERVICE MANUAL
PORTABLE MINIDISC PLAYER
US Model
Canadian Model
E Model
SPECIFICATIONS
MZ-N420D
US and foreign patents licensed from Dolby
Laboratories.
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Model Name Using Similar Mechanism
MZ-NE410
Mechanism Type
MT-MZN710-177
Optical Pick-up Name
LCX-5R
Ver 1.0 2004.04
9-877-707-01
Sony Corporation
2004D1678-1
Personal Audio Company
© 2004.04
Published by Sony Engineering Corporation
•
SonicStage, OpenMG and the OpenMG
logo, MagicGate, Memory Stick and the
MagicGate Memory Stick logo,
Memory Stick and the Memory Stick
logo, Net MD and the Net MD logo are
trademarks of Sony Corporation.
•
Microsoft, Windows, Windows NT and
Windows Media are trademarks or
registered trademarks of Microsoft
Corporation in the United States and /or
other countries.
•
IBM and PC/AT are registered
trademarks of International Business
Machines Corporation.
•
Macintosh is a trademark of Apple
Computer, Inc. in the United States and/
or other countries.
•
MMX and Pentium are trademarks or
registered trademarks of Intel
Corporation.
•
All other trademarks and registered
trademarks are trademarks or registered
trademarks of their respective holders.
•
™ and ® marks are omitted in this
manual.
Audio playing system
MiniDisc digital audio system
Laser diode properties
Material: GaAlAs
Wavelength:
λ
= 790 nm
Emission duration: cont inuous
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.)
Recording and playback time (when
using MDW-80)
Maximum 160 min. in monaural
Maximum 320 min. in LP4 stereo
Revolutions
Approx. 380 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/LP4