6-3. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

Note on Printed Wiring Board:

X : parts extracted from the component side.

Y : parts extracted from the conductor side.

p : parts mounted on the conductor side.

b: Pattern from the side which enables seeing.

Caution:

 

 

 

 

 

 

 

 

Pattern face side:

 

 

Parts on the pattern face side seen from

(Side B)

 

 

 

 

 

 

 

the pattern face are indicated.

Parts face side:

 

 

Parts on the parts face side seen from

(Side A)

 

 

 

 

 

 

 

the parts face are indicated.

 

 

 

 

 

 

 

 

 

 

 

• Indication of transistor.

 

 

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q

 

 

 

 

 

These are omitted.

 

 

 

 

 

 

 

 

 

B E

 

 

 

 

 

 

 

 

 

 

 

 

 

Q

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

 

 

C

E

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

These are omitted.

 

 

 

 

 

 

Q

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

 

C

E

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

These are omitted.

 

 

 

 

 

 

 

 

 

 

 

 

 

Note on Schematic Diagram:

All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.

All resistors are in Ω and 1/4 W or less unless otherwise specified.

% : indicates tolerance.

¢ : internal component.

C : panel designation.

Note:

Note:

The components identi-

Les composants identifiés par

fied by mark !or dotted

une marque !sont critiques

line with mark !are criti-

pour la sécurité.

cal for safety.

Ne les remplacer que par une

Replace only with part

piéce portant le numéro

number specified.

spécifié.

 

 

U : B+ Line.

V : B– Line.

Voltages are taken with a VOM (Input impedance 10 MΩ). Voltage variations may be noted due to normal produc- tion tolerances.

Waveforms are taken with a oscilloscope.

Voltage variations may be noted due to normal produc- tion tolerances.

Circled numbers refer to waveforms.

Signal path.

E : PLAY (ANALOG OUT)

p : PLAY (DIGITAL OUT)

j : REC (ANALOG IN)

l : REC (DIGITAL IN)

– 35 –

Page 33
Image 33
Sony MDS-JE630 service manual Play Analog OUT

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.