Manuals / Sony / Home Audio / MiniDisc Player

Sony MDS-S50 specifications Upper Case, Front Panel Section, MDS-JE470, Two screws CASE 3TP2

Models: MDS-S50

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MDS-JE470

3-2. UPPER CASE (408226)

2 Case (408226)

1Two screws (CASE 3TP2)

1 Screw (CASE 3TP2)

1 Two screws (CASE 3TP2)

3-3. FRONT PANEL SECTION

5 Claw

4Two screws

(+BVTP3x8)

6Front panel

4 Two screws (+BVTP3x8)

3Connector (CN830)

2 Connector (CN390)

1Wire (flat type) (17core) (CN3)

5Claw

Page 14

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Sony MDS-S50 Upper Case, Front Panel Section, MDS-JE470, Case 1Two screws CASE 3TP2 1 Screw CASE 3TP2, Two screws +BVTP3x8

Contents

Outputs SPECIFICATIONSI nputs MDS-JE470General Power requirements MDS-JE470SELF-DIAGNOSISFUNCTION Supplied accessoriesSelecting the Test Mode ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTSMDS-JE470 6. DIAGRAMS TABLE OF CONTENTS3. DISASSEMBLY 7. EXPLODED VIEWSLEAKAGE MDS-JE470 SECTION SERVICE NOTESSAFETY CHECK-OUT Notes on chip component replacementJIG FOR CHECKING BD BOARD WAVEFORM MDS-JE470Display Precedure MDS-JE470Record Precedure KSN-260B OPTICAL PICK-UPBLOCK TYPE DISCRIMINATIONMDS-JE470 KSN-260E@CN406 CHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTSFORCED RESET ProcedureMDS-JE470 RETRY CAUSE DISPLAY MODEProcedure Reading the Display MDS-JE470Reading the Display Hexadecimal t Binary Conversion TableMain unit MDS-JE470 SECTION GENERALBUTTON DESCRIPTIONS Parts IdentificationMDS-JE470 SECTION DISASSEMBLY 3-1.DISASSEMBLY FLOW3Connector CN830 2 Connector CN390 3-2.UPPER CASE3-3.FRONT PANEL SECTION 1Wire flat type 17core CN3 5Claw6Two screws +BVTP3x8 3 Connector CN400 3-4.MAIN BOARD3-5.PT BOARD, VOL-SELBOARD SP model 2 Wire flat type 23core CN1MDS-JE470 3-6.MECHANISM DECK SECTION MDM-7A3-7.OVER LIGHT HEAD HR901, BD BOARD 4 Remove the solder five portionMDS-JE470 3-8.HOLDER ASSY3-9.LOADING MOTOR ASSY M103 2 ClawMDS-JE470 3-10.SLED MOTOR ASSY M102, SLIDER3-11.OPTICAL PICK-UP 5 Remove the claw Shift the slider in the arrow2Spindle motor ASSY M101 3-12.SPINDLE MOTER ASSY M101MDS-JE470 1 Three screws M1.7, tappingMDS-JE470 SECTION TEST MODE 4-1.PRECAUTIONS FOR USE OF TEST MODE4-2.SETTING THE TEST MODE 4-3.EXITING THE TEST MODEDisplay 4-5.SELECTING THE TEST MODEMDS-JE470 GroupMDS-JE470 4-5-1.Operating the Continuous Playback Mode2. Error rate display 4-6.FUNCTIONS OF OTHER BUTTONS4-7.TEST MODE DISPLAYS MDS-JE4704-9.AUTOMATIC SELF-DIAGNOSISFUNCTION 4-11.WHEN MEMORY NG IS DISPLAYED4-8.MEANINGS OF OTHER DISPLAYS 4-10.INFORMATIONCheck before replacement MDS-JE470 SECTION ELECTRICAL ADJUSTMENTS5-1.PARTS REPLACEMENT AND ADJUSTMENT Adjustment flow MDS-JE470MDS-JE470 5-2.PRECAUTIONS FOR CHECKING LASER DIODE EMISSION5-4.PRECAUTIONS FOR ADJUSTMENTS Optical pick-upflexible board5-6-1.Temperature Compensation Offset Check 5-5.USING THE CONTINUOUSLY RECORDED DISC5-6.CHECKS PRIOR TO REPAIRS Checking ProcedureMDS-JE470 ProcedureChecking Procedure 5-6-4.Auto CheckChecking Procedure Checking Procedure5-6-8.C PLAY Check MO Error Rate Check CD Error Rate Check5-10.LASER POWER ADJUSTMENT 5-7.INITIAL SETTING OF ADJUSTMENT VALUE5-9.TEMPERATURE COMPENSATION OFFSET ADJUTMENT 5-8.RECORDING AND DISPLAYING THE Iop INFORMATIONAdjusting Procedure 5-12.TRAVERSE ADJUSTMENTProcedure MDS-JE470MDS-JE470 5-13.FOCUS BIAS ADJUSTMENTAdjusting Procedure 5-15.FOCUS BIAS CHECK 5-14.ERROR RATE CHECK5-16.AUTO GAIN CONTROL OUTPUT LEVEL ADJUSTMENT 5-14-1.CD Error Rate CheckBD BOARD SIDE A 5-17.ADJUSTING POINTS AND CONNECTING POINTSMDS-JE470 BD BOARD SIDE BPT board MDS-JE470 SECTION DIAGRAMS6-1.CIRCUIT BOARDS LOCATION KEY-SWboard MAIN board DISPLAY board BD boardMDS-JE470 For schematic diagramsFor printed wiring boards WAVEFORMS -BD BoardIC171 6-2.BLOCK DIAGRAMS - BD SECTIONMDS-JE470 IC190IC550 MAIN SECTIONIC310 IC781Page MAIN BOARDLocation BD BOARD SIDE APage BD BOARD 2/2 Page BD BOARD 2/2 Page BD BOARD 2/2MDS-JE470 KMS - 260B/260EBOARD MDS-JE470DISPLAY BOARD CN701 Page47 MDS-JE470BD BOARD2/2 CN102 Page42 7MAIN BOARD 82/2MDS-JE470 6-7.SCHEMATIC DIAGRAM - MAIN SECTION 2/2See page 51 for IC Block Diagrams MAINSemiconductor MDS-JE470Location Semiconductor MDS-JE470Location 6-10.SCHEMATIC DIAGRAM - DISPLAY SECTION MDS-JE470VOL-SELBOARD PT BOARDMDS-JE470 MDS-JE470 6-12.SCHEMATIC DIAGRAM - POWER SECTION4949 IC101 CXA2523AR BD BOARD 6-13.IC BLOCK DIAGRAMSMDS-JE470 IC151 CXD2662R BD BOARDIC440 M54641L MAIN BOARD MDS-JE470IC500 AK4524 MAIN BOARD IC421 M5293L MAIN BOARDIC101 CXA2523AR RF Amplifier BD BOARD 6-14.IC PIN FUNCTION DESCRIPTIONMDS-JE470 Pin NoPin Name MDS-JE470Pin No DesriptionPin No PLL Phase Locked LoopMDS-JE470 Pin NamePin Name MDS-JE470Pin No DescriptionPin No MDS-JE470IC1 M30803MG-107FPSYSTEM CONTROL MAIN BOARD Pin NameMDS-JE470 ADA. LATCHMDS-JE470 BEEP SWMDS-JE470 SECTION EXPLODED VIEWS7-1.CHASSIS SECTION FL750 7-2.FRONT PANEL SECTIONMDS-JE470 312 7-3.MECHANISM SECTION-1 MDM-7AMDS-JE470 313M101 S102HR901 M102MDS-JE470 BD ELECTRICAL PARTS LISTSECTION MDS-JE470 BD Ref. NoDISPLAY MDS-JE470 KEY-SW MAINMDS-JE470 MAIN MAIN MDS-JE470MAIN VOL-SELMDS-JE470 MDS-JE470 Description of Revision MDS-JE470 REVISION HISTORYDate 2001.05