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~ MDS-102/MD1
SERVICE MANUAL
¢MDS-MD71
is mini disc
recorder in DHC-MD1.
U.S. and foreign
patents licensed
from
Dolby Laboratories Licensing Corporation.
Photo: MDS-102
AEP Model
|
UK Model
Singapore Model
Mexican Model
Tourist Model
MDS-102
Canadian Model
AEP Model
Singapore Model
MDS-MD1
Model Name Using Similar Mechanism | MDS-101
Mechanism Type
MDM-1C
Base Unit Type
MBU-1
Optical Pickup Block Type
KMS-140B
SPECIFICATIONS
MD recorder section (MDS-102)
System
MiniDisc digital audio system
Disc
MiniDisc
Laser:
Semiconductor laser
Wavelength:
780 - 790nm
Laser diode properties
Material: GaAJAs
Emission duration: continuous
Laser output: less than 44.6 1W
(This output is the value measured
at a distance of 200 mm from the
lens surface on the optical pick-up
block.)
Revolutions
400 rpm to 900 rpm (CLV)
Error correction
Advanced Cross Interleave Reed
Solomon Code (ACIRC)
Sampling frequency
44.1 kHz
Modulation system
EFM (Eight-to-Fourteen
Modulation)
Number of channels
2 stereo channels
Frequency response
5 to 20,000 Hz + 0.5 dB
Wow and flutter
Below measurable limit
MICROFILM
Inputs
Stereo
_ | mini-jack
600 ohms
{0.8 mVrms | 0.3 mVrms
More than
Vv
158
mV
47 kilohms
500
mVrms
mVrms
Optical
wave
lenghth
660 nm
| Phono
Square
optical
connector
jack
—Continued
on next page—
MiniDisc Recorder
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