SERVICE MANUAL
d impedance 10
Audio playing system MiniDisc digital audio system
Laser diode propertiesMaterial: 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 timeWhen using MDW-80:
Maximum 160 min. in monaura l
Maximum 320 min. in stereo
Revolutions350 rpm to 2,800 rpm (CLV)
Error correctionACIRC (Advanced Cross Interleave Reed
Solomon Code)
Sampling frequency44.1 kHz
Sampling rate converterInput: 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 systemEFM (Eight to Fourteen Modulation)
Number of channels 2 stereo channels
1 monaura l channel
Frequency response20 to 20, 000 Hz ± 3 dB
λBelow measurable limit
InputsMicrophone: 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
Outputsi/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 requirementsSony 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
Dimensions3)
Approx. 78.9 × 72. 0 × 17.1 mm (w/h/d)
(3
1/8 × 27/8 × 11/16 in.)
MassApprox. 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 life1)
When recording 2)
(Unit: approx hours)(JEITA3)
)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 rechargeablebattery4)
8.5 11 14LR6 (SG)Sony alkaline dry battery5)
7.5 12 15NH-14WM nickel metal hydride rechargeablebattery4)
+ One LR6 (SG)5)
20 28 37