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MDS-JE440
SPECIFICATIONS
SERVICE MANUAL
MINIDISC DECK
Model Name Using Similar Mechanism NEW
MD Mechanism Type MDM-7A
Optical Pick-up Type KMS-260B/J1N
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
US and foreign patents licensed form Dolby Laboratories
Licensing Corporation.
Inputs
Outputs
System
MiniDisc digital audio system
Disc
MiniDisc
Laser
Semiconductor laser (
λ
= 780 nm)
Emission duration: continuous
Laser output
MAX 44.6 µW
1)
1) 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.
Laser diode
Material: GaAlAs
Revolutions (CLV)
400 rpm to 900 rpm
Error correction
ACIRC (Advanced Cross Interleave
Reed Solomon Code)
Sampling frequency
44.1 kHz
Coding
ATRAC (Adaptive TRansform
Acoustic Coding)/ATRAC 3
Modulation system
EFM (Eight-to-Fourteen
Modulation)
Number of channels
2 stereo channels
Frequency response
5 to 20,000 Hz ±0.3 dB
Signal-to-noiseratio
Over 96 dB during play
Wow and flutter
Below measurable limit
ANALOG IN
Jack type: phono
Impedance: 47 kΩ
Rated input: 500 mVrms
Minimum input: 125 mVrms
DIGITAL IN
Connector type: square optical
Impedance: 660 nm (optical wave
length)
ANALOG OUT
Jack type: phono
Rated output: 2 Vrms (at 50
kΩ)
Load impedance: over 10 kΩ
DIGITAL OUT
Connector type: square optical
Rated output: –18 dBm
Load impedance: 660 nm (optical
wave length)
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