SERVICE MANUAL

d impedance 10
Audio playing system
MiniDisc digital audio system
Laser diode properties
Material: GaAlAs
Wavelength: = 790 nm
Emission du ration: c ontinuous
Laser output: less than 44.6 µW
(This output is the value measured at a distance
of 200 mm from the lens surface o n the optical
pick-up block with 7 mm aperture .)
Recording and playback time
When using MDW-80:
Maximum 160 min. in monaura l
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 TRan sf orm Acoustic
Coding)
ATR AC 3 — L P 2
ATR AC 3 — L P 4
Modulation system
EFM (Eight to Fourteen Modulation)
Number of channels
2 stereo channels
1 monaura l channel
Frequency response
20 to 20, 000 Hz ± 3 dB
λ
Below measurable limit
Inputs
Microphone: stereo m ini-jack, mi nim um input
level 0.25 mV
Line in1): stereo mini-jack, minim u m input
level 49 mV
Optical (Digital) in1): optical (digita l) mini-jack
Outputs
i/LINE OUT2): stereo mini-jack
headphones/earphones: maximum output
level 5 mW + 5 mW, load impedance 16 ohm
LINE OUT: 194 mV, loa
kilohm
Wow and FlutterPower requirements
Sony AC Power Ada ptor connecte d at the DC
IN 3V jack:
230 - 240 V AC, 50 Hz (Hong kong model)
100 - 240 V AC, 50/60 Hz (Oth er 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 × 27/8 × 11/16 in.)
Mass
Approx. 110 g (3.9 oz) th e recorder only
1)The LINE IN (OPT) jack is used to connect
either a digital (o p tica l) cableor a line
(analog) cable.
2)The i/LINE OUT jack connector either
headphones/earphones or a line c able.
3)Measured in accordance with JEITA.
Battery operating timeBattery 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
rechargeableba ttery. Recording time may
differ accordingto the alka li ne batteries.
Batteries SPStereo LP2Stereo LP4StereoNH-14WM nickel metal hydride rechargeablebattery
4)
8.5 11 14LR6 (SG)Sony alkaline dry battery
5)
7.5 12 15NH-14WM nickel metal hydride rechargeablebattery
4)
+ One LR6 (SG)
5)
20 28 37

PORTABLE MINIDISC RECORDER

E Model
Tourist Model
SPECIFICATIONSMZ-R909US and foreign patents licensed from DolbyLaboratories.– Continued on next page –Model Name Using Similar Mechanism NEWMechanism Type MT-MZR909-171Optical Pick-up Name LCX-4R
Ver 1.0 2001. 08
9-873-285-01 Sony Corporation2001H0500-1 Personal Audio CompanyC 2001.8 Shinagawa Tec Service Manual Production Group