Sony MDS-S50 specifications ADA. Latch

Page 57

MDS-JE470

Pin No.

Pin Name

I/O

Description

 

 

 

 

40

ADA. LATCH

O

Latch signal output to the AK4524. L: Active

 

 

 

 

41

EPN

I

Not used. (Fixed at L)

 

 

 

 

42

L : DINT1/H : CLIP

—

Not used. (open)

 

 

 

 

43

NC

—

Not used.

 

 

 

 

44

PROTECT

I

Recording-protection claw detection input from the protection detection switch. H: Protect

 

 

 

 

45

SCL

O

Clock signal output to the EEP-ROM.

 

 

 

 

46

CE

O

Not used.

 

 

 

 

47

EEP-WP

O

EEP-ROM write protect signal output. L: write possibility

 

 

 

 

48

XBUSY

I

In the state of executive command from the CXD2662R

 

 

 

 

49

OUT-SW

I

Detection signal input from the loading out detection switch.

 

 

 

 

50

XLATCH

O

Latch signal output to the serial bus.

 

 

 

 

51

PLAY-SW

I

Detection signal input from the playback position detection switch. L: PLAY

 

 

 

 

52

DIG-RST

O

Digital rest signal output to the CXD2662R and motor driver. L: Reset

 

 

 

 

53

REC-SW

I

Detection signal input from the recording position detection switch. L: REC

 

 

 

 

54

WR PWR

O

Write power ON/OFF output. L: OFF H: ON

 

 

 

 

55

LIMIT-IN

I

Detection input from the limit switch. L: Sled limit-In H: Sled limit-Out

 

 

 

 

56

MOD

O

Laser modulation switching signal output. (L: STOP, H : PLAY, pluse : REC)

 

 

 

 

57

LDON

O

Laser ON/OFF control output. H: Laser ON

 

 

 

 

58

SENS

I

Internal status (SENSE) input from the CXD2662R.

 

 

 

 

59

SHCK

I

Track jump signal input from the CXD2662R.

 

 

 

 

60

SDA

I/O

Data signal input/output pin with the EEP-ROM.

 

 

 

 

61

REFLECT

I

Disk reflection rate detection input from the reflect detection switch. H: Disk with low reflection rate.

 

 

 

 

62

VCC

I

Power supply. (+3.3V)

 

 

 

 

63

NC

—

Not used.

 

 

 

 

64

GND

—

Ground.

 

 

 

 

65

LOAD LO

O

Loading motor voltage control output L: High voltage H: Low voltage

 

 

 

 

66

LOAD OUT

O

Loading motor control output. H: eject

 

 

 

 

67

LOAD IN

O

Loading motor control output. H: loading

 

 

 

 

68 - 71

MODEL SEL 0 - 3

—

Not used.

 

 

 

 

72 - 80

NC

—

Not used.

 

 

 

 

57

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Contents 873-891-11 SpecificationsMDS-JE470 SELF-DIAGNOSIS FunctionThree- or five Digit code Cause/Remedy Message Items of Error History Mode Items and Contents Disassembly Table of ContentsDiagrams Exploded ViewsSafety CHECK-OUT MDS-JE470 Section Service NotesFlexible Circuit Board Repairing LeakageIOP JIG for Checking BD Board WaveformRecord Precedure Optical PICK-UP Block Type Discrimination KSN-260EChecks Prior to Parts Replacement and Adjustments Forced ResetMain Board Component Side Bit Binary Retry Cause Display ModeBit When Binary Higher Bits Lower Bits Hexa DetailsHexadecimal Binary Button Descriptions MDS-JE470 Section GeneralDisassembly Flow MDS-JE470 Section DisassemblyFront Panel Section PT BOARD, VOL-SEL Board SP model Main BoardOver Light Head HR901, BD Board Mechanism Deck Section MDM-7ALoading Motor Assy M103 Holder AssyOptical PICK-UP Sled Motor Assy M102, SliderSpindle Moter Assy M101 Precautions for USE of Test Mode MDS-JE470 Section Test ModeSetting the Test Mode Exiting the Test ModeDisplay Selecting the Test ModeMENU/NO Operating the Continuous Playback ModeMode display Test Mode DisplaysError rate display Functions of Other ButtonsMeanings of Other Displays When Memory NG is DisplayedAutomatic SELF-DIAGNOSIS Function InformationMDS-JE470 Section Electrical Adjustments Parts Replacement and AdjustmentCheck before replacement Adjustment flow Precautions for Checking Laser Diode Emission Precautions for USE of Optical PICK- UP KMS-260B/260EPrecautions for Adjustments Checks Prior to Repairs Using the Continuously Recorded DiscOther Checks Auto CheckTraverse Check Traverse WaveformCD Error Rate Check Play Check MO Error Rate CheckFocus Bias Check Self-Recording/playback CheckInitial Setting of Adjustment Value Temperature Compensation Offset AdjutmentLaser Power Adjustment Iop NV Save Traverse AdjustmentFocus Bias Adjustment Auto Gain Control Output Level Adjustment Error Rate CheckCD Auto Gain Control Output Level Adjustment MO Auto Gain Control Output Level AdjustmentAdjusting Points and Connecting Points Circuit Boards Location MDS-JE470 Section DiagramsFor printed wiring boards For schematic diagramsBD Board Main BoardBlock Diagrams BD Section IC171IC190 Main Section IC360 2/2IC1 2/2 Semiconductor SemiconductorOVERBoard Board Main Display Board See page 51 for IC Block Diagrams Schematic Diagram Main /2IC1 KEY-SW Board Indicator Tube Schematic Diagram Display Section230V PT BoardSchematic Diagram Power Section IC101 CXA2523AR BD Board IC Block DiagramsIC500 AK4524 Main Board IC PIN Function Description IC101 CXA2523AR RF Amplifier BD BoardPin No Pin Name Description Sqsy Pin No Pin Name DesriptionMvci Abbreviation EFM Eight to Fourteen Modulation IC1 M30803MG-107FP System Control Main Board ADA. Latch STB Chassis Section Section Exploded ViewsFL750 Mechanism MDM-7A M101 Coils Electrical Parts ListMetal Chip MDS-JE470 KEY-SW Main DisplayCN2 MDS-JE470 MainTC7WHU04FUTE12R Screw +KTP 2X6 TYPE2 NON-SLIT MDS-JE470 Main VOL-SELMDS-JE470 MDS-JE470 Revision History

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.
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