SERVICE MANUAL
d impedance 10
Audio playing system
MiniDisc digital audio system
Laser diode properties
Material: GaAlAs
Wavelength: =
790
nm
Emission dura tion : continuous
Laser output: less than
44. 6
µ
W
(This output is the va lue measured at a distance
of 200 mm from the lens surface on the optical
pick-up block with 7 mm a per ture .)
Recording and playback time
When using MDW-80:
Ma ximum 160 min. in monaura l
Ma ximum 320 min. in ste reo
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 TRa nsform Acoust ic
Coding)
ATRAC3 — LP2
ATRAC3 — LP4
Modulation system
EFM (Eight to Fourteen Modula tion)
Number of channels
2 s ter eo channels
1 mona ura l channel
Frequency response
20 to 20, 000 Hz
±
3 dB
λ
Below measurable limit
Inputs
Micropho ne : stereo mini-jack, minimum input
leve l 0. 25 mV
Line in
1)
: s tereo mini-ja ck, minimum input
leve l 49 mV
Op tical (Digital) in
1)
: optical (digital) mini-ja ck
Outputs
i
/LINE OUT
2)
: s tereo mini-jack
headphones/earphones: maximum output
leve l 5 mW + 5 mW, loa d impedance 16 oh m
LINE OUT: 19 4 mV, loa
kilohm
Wow and Flutter
Power requirements
Sony AC P owe r Ada ptor connecte d a t the DC
IN 3V jack:
23 0 - 240 V AC, 50 Hz (Hong kong model)
10 0 - 240 V AC, 50 /60 Hz (Other models)
Nicke l meta l hydr ide rechageable battery NH-
14WM(A) 1.2V 1350 mAh (MIN) Ni-MH
LR6 (s ize 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. 11 0 g (3.9 oz ) the recorder only
1)
The LINE IN (OP T) jack is used to connect
e ither a digital (optica l) cable or a line
(a nalog) cable.
2)
The
i
/LINE OUT jack connector eithe r
headphones/earphones or a line ca ble .
3)
Measured in accordance with JEITA.
Battery operating time
Battery life
1)
When recording
2)
(Unit: approx hours)(JE ITA
3)
)
1)
The battery life may be shorter due to operating
conditions and the tempreture of the location.
2)
Whe n you reco rd, use a fully charged
rechargeable ba tter y. Reco rding time may
diffe r according to the a lka line batteries.
Batteries
SP
Stere o
LP2
Stere o
LP4
Stereo
NH-14WM
nickel metal
hydride
rechargeable
battery
4)
8.5
11
14
LR6 (S G)
S ony alkaline
dry battery
5)
7.5
12
15
NH-14WM
nicke l meta l
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