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SERVICE MANUAL
d impedance 10
Audio playing system
MiniDisc digital audio system
Laser diode properties
Material: GaAlAs
Wavelength: = 790 nm
Emission d uration: continuous
Laser output: less than 44.6 µW
(This output is the value measured at a distance
of 200 mm from the 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 stereo
Revolutions
350 rpm to 2,800 rpm (CLV)
Error correction
ACIRC (Advanced Cross Interleave Reed
Solomon Code)
Sampling frequency
44.1 kHz
Sampling rate converter
Input: 32 kHz/44.1 kHz/48 kHz
Coding
ATRAC (Adaptive TRansform Acoustic
Coding)
AT R AC 3 — L P 2
AT R AC 3 — L P 4
Modulation system
EFM (Eight to Fourteen Modula tion)
Number of channels
2 stereo channels
1 monaural channel
Frequency response
20 to 20,000 Hz ± 3 dB
λ
Below measurable limit
Inputs
Microphone : stereo mini-jack, minimum input
level 0.25 mV
Line in
1)
: stereo mini-jack, minimum input
level 49 mV
Optical (Digital) in
1)
: optical (digital) mini-jack
Outputs
i/LINE OUT
2)
: stereo mini-jack
headphones/earphones: maximum output
level 5 mW + 5 mW, load impedance 16 ohm
LINE OUT: 194 mV, loa
kilohm
Wow and Flutter
Power requirements
Sony AC Power Adaptor connected at the DC
IN 3V jack:
230 - 240 V AC, 50 Hz (Hong kong model)
100 - 240 V AC, 50/60 Hz (Other models)
Nickel metal hydride rechageable battery NH-
14WM(A) 1.2V 1350 mAh (MIN) Ni-MH
LR6 (size AA) alkaline battery
Dimensions
3)
Approx. 78.9 × 72.0 × 17.1 mm (w/h/d)
(3
1
/8 × 2
7
/8 ×
11
/16 in.)
Mass
Approx. 110 g (3.9 oz) the recorder only
1)
The LINE IN (OPT) jack is used to connect
either a digital (optical) cable or a line
(analog) cable.
2)
The i/LINE OUT jack connector either
headphones/earphones or a line cable.
3)
Measured in accordance with JEITA.
Battery operating time
Battery life
1)
When recording
2)
(Unit: approx hours)(JEITA
3)
)
1)
The battery life may be shorter due to operating
conditions and the tempreture of the location.
2)
When you record, use a fully charged
rechargeable battery. Recording time may
differ according to the alkaline batteries.
Batteries SP
Stereo
LP2
Stereo
LP4
Stereo
NH-14WM
nickel metal
hydride
rechargeable
battery
4)
8.5 11 14
LR6 (SG)
Sony alkaline
dry battery
5)
7.5 12 15
NH-14WM
nickel metal
hydride
rechargeable
battery
4)
+ One LR6
(SG)
5)
20 28 37
PORTABLE MINIDISC RECORDER
E Model
Tourist Model
SPECIFICATIONS
MZ-R909
US and foreign patents licensed from Dolby
Laboratories.
– Continued on next page –
Model Name Using Similar Mechanism NEW
Mechanism Type MT-MZR909-171
Optical Pick-up Name LCX-4R
Ver 1.0 2001. 08
9-873-285-01 Sony Corporation
2001H0500-1 Personal Audio Company
C 2001.8 Shinagawa Tec Service Manual Production Group