MDS-JE470

– MAIN SECTION –

 

 

 

 

 

A/D, D/A CONVERTER

 

 

 

 

 

 

 

 

 

 

 

IC500

 

 

 

 

 

 

 

ADDT

 

 

SDTO

HIGH-PASS FILTER,

A/D

SUB-

AINL

3

LINE AMP

 

A

 

13

AINR

 

 

 

 

DIGITAL

CONVERTER

TRACKTION

2

IC310

 

 

 

 

 

 

ATTENUATOR

BLOCK

 

 

(Page38)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AUDIO

 

 

 

 

 

 

 

 

 

 

 

INTERFACE

 

 

AOUTL+

26

MIX AMP

LOW-PASS

 

 

 

 

 

CONTROLLER

 

 

AOUTL–

FILTER

 

DADT, BCK,

 

 

 

 

 

 

25

IC360 (1/2)

IC370 (1/2)

 

 

 

 

DIGITAL

D/A

 

 

 

 

 

 

 

 

 

 

 

B

LRCK

DADT

14

SDTI

 

 

 

 

 

 

BCK

BICK

ATTENUATOR,

CONVERTER

 

 

 

 

 

(Page38)

 

12

SOFT MUTE

BLOCK

 

AOUTR+

28

MIX AMP

LOW-PASS

 

 

 

 

 

 

 

 

 

LRCK

 

LRCK

 

 

 

AOUTR–

 

FILTER

 

 

11

 

 

 

27

IC360 (2/2)

 

 

 

 

 

IC370 (2/2)

 

 

 

 

 

 

 

 

 

 

D

SWDT, SCLK

SWDT

15

CDTI

 

 

CLOCK

XTI

9

 

 

CONTROL

 

GENERATOR,

OSC

 

 

SCLK

CCLK

 

 

 

(Page38)

 

16

REGISTER

 

CLOCK DIVIDER

 

 

IC550

 

 

 

CS

 

 

 

 

 

 

 

17

INTERFACE

 

 

 

 

X550

 

 

 

 

PD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

19

 

 

 

 

45.1584MHz

 

 

 

 

 

 

 

 

 

 

 

C

1024FS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Page38)

 

 

 

 

 

 

 

 

 

REMOTE CONTROL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RECEIVER

IC781

 

 

SIGNAL PATH

 

J300

: PLAY (ANALOG OUT)

 

L

: REC (ANALOG IN)

 

ANALOG

 

R

IN

 

L

 

 

 

ANALOG

 

 

OUT

 

R

 

MUTING

 

 

Q181, 281

 

 

MUTING

 

 

CONTROL SWITCH

 

Q380

 

 

D382

D381

 

 

 

IIC POWER

 

 

IIC CLK

X15

10MHz

15 XIN

13 XOUT

40

 

 

ADA,LATCH

 

 

FLDT

FLCK

FLCS

1 2 84

39

24

3

 

ADA,RESET

A1 OUT

A1 IN

 

 

 

SYSTEM CONTROLLER

 

 

 

IC1 (2/2)

 

 

 

JOG0

JOG1

 

 

87

88

4 SIRCS

KEY0 – KEY2

96,95,94

 

38

81

 

 

 

 

 

 

MUTE

STB

IIC DATA

30

IIC DATA

 

+5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

6

 

 

 

IIC DATA

29

GND

 

 

 

 

 

3

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

J800

P DOWN

 

 

 

 

1

2

PC LINK

S.RST

 

 

 

 

 

IIC BUSY

23

 

 

 

 

IIC POWER

28

GND

 

 

 

 

 

 

 

19 12

 

 

 

 

 

 

 

 

 

 

TR950

 

 

 

 

 

 

 

 

 

 

 

 

IIC BUSY

 

POWER

 

 

 

 

 

 

TRANSFORMER

 

 

 

 

 

 

 

D726

STANDBY

D775

MD LP

C769, R769

OSCI

 

59

 

OSC

 

 

58

OSCO

 

 

P1

P2

 

1

2

LED DRIVE

 

 

Q726

 

 

LED DRIVE

Q755

63 62 61

DAT CLK CS

FL/LED DRIVER

IC760

S1–S35

G1 – G12

5 – 39

40 – 51

S1 – S35

G1 – G12

FLUORESCENT INDICATOR TUBE

FL750

 

 

1

3

 

A

 

B

 

ROTARY

 

ENCODER

RST

60

 

 

 

GND

 

SW

G13

5

 

4

 

 

 

52

 

S713

lAMS L PUSH ENTER

FL DRIVE

Q767

G13

S701 – 706, 711, 712,

S714-716, 721 – 724,

S726

6

9

 

 

 

 

 

RECT

 

 

 

 

 

D431,432

 

 

 

 

 

 

 

IC600(2/2)

+3.3V

 

 

+3.3V

RECT

 

 

REGULATOR

BUFFER

 

 

 

D401-404

 

(SYS)

 

 

IC401

 

 

 

D409

D406

 

 

 

 

 

TR900

 

 

 

+3.3V

 

 

 

 

 

 

 

 

 

POWER

 

 

 

(BACKUP)

D408

CN406

 

TRANSFORMER

 

 

 

 

 

 

3 RESET

VCC

5

 

 

 

 

AC

 

 

 

 

(TO FL750)

 

 

 

 

 

 

 

IC406

 

 

BT406

 

 

 

 

 

LITHIUM

 

 

 

RESET

 

 

BATTERY

 

 

 

 

 

 

 

 

 

 

 

 

 

–32V

 

–32V

RECT

 

 

 

 

 

REGULATOR

 

 

 

(FL DRIVER (IC760) B–)

 

D421

 

 

 

 

 

IC421

 

 

 

 

 

RECT

 

RELAY

 

 

 

 

UNREG +12V

 

DRIVE

 

 

 

 

D471, 472

 

 

 

 

 

 

 

Q911

 

 

 

 

 

 

 

 

 

 

 

AUDIO

 

 

 

 

 

 

CIRCUIT

 

 

 

 

 

 

 

 

RECT

 

 

 

 

 

 

UNREG –12V

D466–467

 

 

 

 

IC411

UNREG +12V

 

 

 

 

LOADING MOTOR

 

 

 

 

 

+5V

DRIVER (IC440) B+

VOLTAGE

 

 

REGULATOR

 

 

SELECTOR

 

+5V

3 OUT

VIN

1

RECT

115V

230V

 

D411,412

 

 

 

 

 

 

 

 

S990

 

 

 

 

 

 

 

VT +3.3V

+3.3V

 

 

 

 

 

 

REGULATOR

 

 

 

 

 

 

(TO IC500)

 

 

 

 

 

 

Q490

 

 

 

 

SP

 

 

 

 

 

 

 

39 39

Page 39
Image 39
Sony MDS-S50 specifications Main Section, IC360 2/2, IC1 2/2

MDS-S50 specifications

The Sony MDS-S50 is a pinnacle of MiniDisc technology, offering audiophiles a compact and reliable way to enjoy high-quality audio. Launched in the early 2000s, it epitomizes the innovation that Sony was known for during this period, combining functionality with sleek design.

One of the primary features of the MDS-S50 is its ability to record in SP (Standard Play) mode, which delivers high-resolution audio at 64 kbps, and LP (Long Play) mode for extended recording times. This flexibility makes it suitable for various listening preferences, whether for critical listening or casual playback during everyday activities. The device harnesses the precision of digital audio encoding, ensuring minimal loss of sound quality.

The MDS-S50 stands out with its direct digital recording capabilities. By connecting to external audio sources via optical or coaxial digital inputs, users can preserve the integrity of the original sound. This feature is particularly appealing for those who want to capture live recordings or transfer vinyl records and CDs to the MiniDisc format without degradation.

The inclusion of a user-friendly interface, with an intuitive remote control and well-organized menu systems, enhances the experience for users. The display panel gives clear information on track titles, remaining recording time, and other essential details, allowing for seamless navigation through complex playlists or recording options.

Another notable technology in the MDS-S50 is the ATRAC (Adaptive Transform Acoustic Coding) compression algorithm, developed by Sony. This proprietary encoding format optimizes sound quality while significantly reducing file sizes. The result is a perfect balance between audio fidelity and efficient storage, which was a major advantage during the era of burgeoning digital music.

Furthermore, the MDS-S50 boasts a durable build quality, designed to withstand transport and everyday use. Its compact size, combined with lightweight materials, allows users to take it on the go while not compromising on audio quality.

Ultimately, the Sony MDS-S50 remains a beloved device among music enthusiasts. With its combination of high-quality recording capabilities, advanced digital encoding technology, and user-friendly features, it represents a unique chapter in the evolution of portable audio. Whether used as a standalone player or part of a larger audio setup, it delivers a level of performance that still resonates with those who appreciate the art of music.