Sony MDS-JE770 specifications Specifications, 9-873-890-11, Minidisc Deck, Ver, Sony Corporation

MDS-JE770

SERVICE MANUAL

AEP Model

UK Model

E Model

Ver 1.0 2001. 05

Foreign patents licensed form Dolby Laboratories Licensing Corporation.

Model Name Using Similar Mechanism	MDS-S50
MD Mechanism Type	MDM-7A
Optical Pick-up Type	KMS-260B/260E

SPECIFICATIONS

System	MiniDisc digital audio
	system
Disc	MiniDisc
Laser	Semiconductor laser
	( λ = 780 nm) Emission
	duration: continuous
Laser output	MAX 44.6 ∝W1)

1)This output is the value measured at a distance of 200 mm from the objective lens surface on the

Optical Pick-up Block with 7 mm aperture.

Laser diode	Material: GaAlAs
Revolutions (CLV)	400 rpm to 900 rpm
Error correction	ACIRC (Advanced Cross
	Interleave Reed Solomon
	Code)
Sampling frequency	44.1 kHz
Coding	ATRAC (Adaptive
	TRansform Acoustic
	Coding)/ATRAC 3
Modulation system	EFM (Eight-to-Fourteen
	Modulation)
Number of channels	2 stereo channels
Frequency response	5 to 20,000 Hz ±0.3 dB
Signal-to-noise ratio	Over 98 dB during play
Wow and flutter	Below measurable limit

I npu ts

ANALOG IN	Jack type: phono
	Impedance: 47 kilohms
	Rated input: 500 mVrms
	Minimum input:
	125 mVrms
DIGITAL OPTICAL IN	Connector type: square
	optical
	Impedance: 660 nm
	(optical wave length)
DIGITAL COAXIAL IN	(European model only)
	Jack type: phono
	Impedance: 75 ohms
	Rated input: 0.5 Vp-p,
	±20 %

Ou tputs

PHONES	Jack type: stereo phone
	Rated output: 28 mW
	Load impedance: 32 ohms
ANALOG OUT	Jack type: phono
	Rated output: 2 Vrms (at
	50 kilohms)
	Load impedance: over
	10 kilohms

DIGITAL OPTICAL OUT

Connector type: square optical

Rated output: –18 dBm

Load impedance: 660 nm (optical wave length)

— Continued on next page —

MINIDISC DECK

9-873-890-11	Sony Corporation
2001E0200-1	Home Audio Company
© 2001.5	Shinagawa Tec Service Manual Production Group