MDS-JE630

SERVICE MANUAL

US Model Canadian Model

U.S. and foreign patents licensed form Dolby Laboratories Licensing Corporation.

Model Name Using Similar Mechanism

MDS-JE520

 

 

MD Mechanism Type

MDM-5D

 

 

Base Unit Type

MBU-5D

 

 

Optical Pick-up Type

KMS-260B/J1N

 

 

SPECIFICATIONS

System

MiniDisc digital audio system

Outputs

 

Disc

MiniDisc

PHONES

Jack type: stereo phone

Laser

Semiconductor laser (λ = 780 nm)

 

Rated output: 28 mW

 

Emission duration: continuous

 

Load impedance: 32 ohms

Laser output

Less than 44.6 µW*

LINE (ANALOG) OUT

Jack type: phono

 

* This output is the value measured

 

Rated output: 2 Vrms (at 50 kilohms)

 

at a distance of 200 mm from the

 

Load impedance: over 10 kilohms

 

objective lens surface on the Optical

DIGITAL OUT

Connector type: square optical

 

Pick-up Block with 7 mm aperture.

 

Rated output: –18 dBm

Laser diode

Material: GaAlAs

 

Load impedance: 660 nm (optical

Revolutions (CLV)

400 rpm to 900 rpm

 

wave length)

Error correction

Advanced Cross Interleave Reed

 

 

 

Solomon Code (ACIRC)

General

 

Sampling frequency

44.1 kHz

Power requirements

120 V AC, 60 Hz

Coding

Adaptive Transform Acoustic Coding

Power consumption

17 W

 

(ATRAC)

Dimension (approx.)

430 × 95 × 280 mm

Modulation system

EFM (Eight-to-Fourteen Modulation)

 

(17 × 3 3/4 × 11 1/8 in.) (w/h/d) incl.

Number of channels

2 stereo channels

 

projecting parts and controls

Frequency response

5 to 20,000 Hz ±0.3 dB

Mass (approx.)

3.4 kg (7 lbs 11 oz)

Signal-to-noise ratio

Over 98 dB during playback

 

 

Wow and flutter

Below measurable limit

Supplied accessories

 

 

 

• Audio connecting cords (2)

Inputs

 

• Optical cable (1)

 

LINE (ANALOG) IN

Jack type: phono

• Remote commander (remote) RM-D15M (1)

 

Impedance: 47 kilohms

• R6 (size-AA) batteries (2)

 

Rated input: 500 mVrms

 

 

 

Minimum input: 125 mVrms

Design and specification are subject to change without notice.

DIGITAL IN

Connector type: square optical

 

 

 

Impedance: 660 nm (optical wave length)

 

 

MINIDISC DECK

MICROFILM

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Sony MDS-JE630 service manual Specifications, MDS-JE520, MDM-5D, MBU-5D

MDS-JE630 specifications

The Sony MDS-JE630 is a compact and versatile MiniDisc recorder that was launched in the late 1990s, showcasing Sony's commitment to portable digital audio technology. Renowned for its superior sound quality, the MDS-JE630 is an exceptional choice for audiophiles and professionals alike, offering a user-friendly interface and a range of advanced features.

One of the main highlights of the MDS-JE630 is its MDLP (MiniDisc Long Play) technology, which allows for extended recording time without sacrificing audio quality. This feature enables users to record up to 148 minutes of stereo sound on a single MiniDisc, making it an invaluable tool for those requiring longer recording sessions, such as musicians or radio broadcasters.

The MDS-JE630 is equipped with ATRAC (Adaptive Transform Acoustic Coding) compression algorithms, ensuring that audio files retain high fidelity even when compressed. The device features a 20-bit digital-to-analog converter, providing remarkable sound clarity and depth. Users can expect crisp highs and robust lows, making every listening experience engaging and immersive.

Ease of use is another hallmark of the MDS-JE630. The front panel includes an intuitive layout, featuring a large LCD display that clearly shows current track information, time elapsed, and other playback indicators. Additionally, the unit offers various playback modes such as normal, repeat, and shuffle, allowing users to customize their listening experience.

The recording process on the MDS-JE630 is seamless, thanks to its one-touch recording feature. Users can easily initiate recordings from connected sources, including CD players or turntables, via the device's multiple inputs, such as line-in and optical digital inputs. This adaptability makes it a versatile component for any audio setup, whether for home studios or live performances.

Moreover, the MDS-JE630 incorporates a variety of editing functions, including track arranging, dividing, and merging, providing users with the ability to create perfectly curated audio collections. The device also supports a wide range of MiniDisc formats, ensuring compatibility with existing media.

In conclusion, the Sony MDS-JE630 stands out as a premier MiniDisc recorder, offering a blend of advanced technology, user-friendly design, and high-quality playback. Its innovative features and commitment to sound quality have made it a popular choice for music professionals and enthusiasts, solidifying its reputation as a reliable audio recording solution for years to come.