Sony MDS-JE630 service manual Base Unit Section MBU-5D

Page 56

(4)BASE UNIT SECTION (MBU-5D)

252 265

#3

264

266

HR901

#4

271

#3

263

270

not supplied

272

not supplied

M101

S102

254

253

M102

267

#3

268

#3

269

262

 

#3

255

261

 

#5

256

 

259

#4

260

258

not supplied #3

257

#3

252

251

252

Ref. No.

Part No.

Description

Remark

251A-4724-637-A BD BOARD, COMPLETE

2523-372-761-01 SCREW (M1.7), TAPPING

*253 4-996-267-01 BASE (BU-D)

*254 4-996-255-01 BASE (BU-C)

2554-900-590-01 SCREW, PRECISION SMALL

2564-996-258-01 SPRING, COMPRESSION

2574-996-262-01 GEAR (SL-C)

2581-667-954-11 FLEXIBLE BOARD

*259 4-210-664-01 BASE (BU-A)

!260 A-4672-541-A OPTICAL PICK-UP KMS-260B/J1RP

*261 4-996-252-01 CHASSIS, BU

*262 4-996-254-01 BASE (BU-B)

263 4-967-688-11 MAGNET, ABSORPTION

264 4-996-260-01 GEAR (SL-A)

The components identified by

Les composants identifiés par une

mark ! or dotted line with

marque ! sont critiques pour la

mark !are critical for safety.

sécurité.

 

Replace only with part num- Ne les remplacer que par une pièce

ber specified.

 

portant le numéro spécifié.

 

Ref. No.

Part No.

Description

Remark

2654-996-261-01 GEAR (SL-B)

2664-996-264-01 SPRING (SHAFT), LEAF

2674-996-265-01 SHAFT, MAIN

2684-996-256-01 SL (BASE)

2694-996-257-01 RACK (SL)

2704-996-263-01 SPRING (CLV), TORSION

2714-988-560-01 SCREW (+P 1.7X6)

2724-211-036-01 SCREW (1.7X2.5), +PWH HR901 1-500-502-11 HEAD, OVER WRITE M101 A-4672-475-A MOTOR ASSY, SPINDLE

M102 A-4672-474-A MOTOR ASSY, SLED

S102 1-762-148-21 SWITCH, PUSH (2 KEY)

(REFLECT DET, PROTECT DET)

– 68 –

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Contents Specifications MDS-JE520MDM-5D MBU-5DSELF-DIAGNOSIS Function Items of Error History Mode Items and Contents Section Servicing Notes Table of ContentsDiagrams Flexible Circuit Board Repairing JIG for Checking BD Board Waveform IOPRecord Procedure Checks Prior to Parts Replacement and Adjustments Criteria for Determination Measure if unsatisfactoryRetry Cause Display Mode ProcedureHexadecimal nBinary Conversion Table Front Panel Rear Panel Section GeneralLocation of Controls Page Front Panel Section Section DisassemblyCase Main Board Mechanism Deck Section MDM-5DSlider CAM Base Unit MBU-5D, BD BoardSW BOARD, Loading Motor M103 Section Test Mode Precautions for USE of Test ModeSetting the Test Mode Releasing the Test ModeSelecting the Test Mode Display Contents Mark GroupOperating the Continuous Playback Mode Non-Volatile Memory Mode EEP ModeMID OUTTest Mode Displays Functions of Other ButtonsMeanings of Other Displays Section Electrical Adjustments Parts Replacement and AdjustmentPrecautions for Checking Laser Diode Emission Precautions for USE of Optical PICK-UP KMS-260APrecautions for Adjustments Laser power meterTemperature Compensation Offset Check Laser Power CheckCheck Prior to Repairs Traverse CheckPlay Check MO Error Rate Check CD Error Rate CheckFocus Bias Check Self-Recording/playback CheckInitial Setting of Adjustment Value Temperature Compensation Offset AdjustmentLaser Power Adjustment Recording and Displaying the IOP InformationTraverse Adjustment Focus Bias Adjustment Error Rate Check Auto Gain Control Output Level AdjustmentCD Auto Gain Control Output Level Adjustment MO Auto Gain Control Output Level AdjustmentAdjustment Location Section Diagrams Block Diagram Servo Section∙ Signal Path MDS-JE630Block Diagram Main Section REC AnalogPlay Analog OUT Circuit Boards Location Semiconductor Location Printed Wiring Board BD BoardSee page 36 for Circuit Boards Location MDS-JE630 Schematic Diagram BD Board 2/2 See 43 for Waveforms. See page 56 for IC Block DiagramsSchematic Diagram SW Board Printed Wiring Board SW BoardWaveforms BD Board Main BoardPrinted Wiring Board Main Board See 36 for Circuit Boards Location Semiconductor LocationSchematic Diagram Main Board 1/2 See page 43 for Waveforms Line with mark !are critical for safety Ref. No Location D757 IC761 IC771 Q757 Q781 Q782 Schematic Diagram Panel Section See page 43 for Waveform IC152 BH6511FS-E2 IC Block Diagrams BD Board IC101IC121 CXD2656R IC471 LB1641 Main Board IC310 M5293L IC431 LA5632IC321 AK4524 IC PIN Function Description Xlat SrdtSens XrstXras XWEAsyo AsyiSrdr SfdrSprd SpfdAder ByteCnvss RSTSTB ChackLdin LD-LOWSCL SctxClock SET0 Clock SET1Section Exploded Views Chassis Section17 #1 12 A-4724-696-A Main BOARD, Complete65 A-4724-698-A Display BOARD, Complete 67 A-4724-697-A KEY SW BOARD, CompleteMechanism Section 216 207 203 222 223 225 202 201226 206 204 209 4-988-466-21 Spring ELECTROSTATIC, LeafBase Unit Section MBU-5D Section Electrical Parts List Display Display HP KEY KEY SW KEY SW Main Ground Plate TC74HCU04APGP1F38R Digital in OPT1 GP1F38R Digital in OPT2Ferrite Bead Inductor Line FilterMain Power SW SW MANUAL, Instruction ENGLISH, French Accessories & Packing MaterialsCORD, Connection Audio
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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.
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