Ver 1.0 1998.10
MICROFILM
MZ-E55
SERVICE MANUAL
PORTABLE MINIDISC PLAYER
SPECIFICATIONS
E Model
Tourist Model
Model Name Using Similar Mechanism NEW
MD Mechanism Type MT-MZE55-150
Optical Pick-up Mechanism Type ODX-1A/1B
US and foreign patents licensed from Dolby
Laboratories Licensing Corporation
MD Section
Audio playing system
Minidisc digital audio system
Laser diode properties
Material : GaAlAs
Wavelength : λ =790nm
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 7mm aperture.
Revolutions
400 rpm to 900 rpm (CLV)
Error correction
Advanced Cross Interleave Reed Solomon Code (ACIRC)
Sampling frequency
44.1kHz
Coding
Adaptive Transform Acoustic Coding (ATRAC)
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 limit
Outputs
Headphones : stereo mini-jack, maximum output level 5mW+5mW,
load impedance 16 ohm
General
Power requirements
Rechageable battery (supplied)
Nickel metal hydride rechargeable battery NH-9WM (N)
One LR6 (size AA) alkaline battery (not supplied)
Sony AC Power Adaptor (not supplied) connected at the DC IN
1.5V jack
Battery operation time
Batteries Playback
Nickel metal hydride Approx.
Rechargeable battery (NH-9WM (N)) 7.5 hours
One LR6 (size AA) Approx.
Sony alkaline dry batteries 10 hours
Nickel metal hydride (NH-9WM (N)) + Approx.
One LR6 (size AA) 20 hours
Dimensions
Approx. 79.7 x 14.9 x 71.9 mm (w/h/d)
(3
1
/
4
x
19
/
32
x 2
7
/
8
in) not including projecting parts and controls
Mass
Approx. 80 g (2.9 oz.) the player only
Approx. 120 g (4.3 oz.) incl. a premastered MD and a nickel
metal hydride rechargeable battery NH-9WM (N)
Supplied accessories
Battery charger (1)
Rechargeable battery (1)
Rechargeable battery carrying case (1)
Headphones with a remote control (1)
Dry battery case (1)
Carrying pouch (1)
Plug adaptor (1) (Tourist model)
Design and specifications are subject to change without notice.
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