Manuals / Sony / Home Audio / MiniDisc Player

Sony MDS-S50 BD BOARD 2/2 Page BD BOARD 2/2 Page BD BOARD 2/2, MDS-JE470, KMS - 260B/260E

Models: MDS-S50

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MDS-JE470

6-4. SCHEMATIC DIAGRAM – BD SECTION (1/2) – • See page 37 for Waveforms. • See page 52 for IC Pin Functions. • See page 50 for IC Block Diagrams.

(KMS - 260B/260E)
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Sony MDS-S50 specifications BD BOARD 2/2 Page BD BOARD 2/2 Page BD BOARD 2/2, MDS-JE470, KMS - 260B/260E

Contents

I nputs SPECIFICATIONSOutputs MDS-JE470SELF-DIAGNOSISFUNCTION MDS-JE470General Power requirements Supplied accessoriesSelecting the Test Mode ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTSMDS-JE470 3. DISASSEMBLY TABLE OF CONTENTS6. DIAGRAMS 7. EXPLODED VIEWSSAFETY CHECK-OUT MDS-JE470 SECTION SERVICE NOTESLEAKAGE Notes on chip component replacementMDS-JE470 JIG FOR CHECKING BD BOARD WAVEFORMDisplay Precedure MDS-JE470Record Precedure MDS-JE470 OPTICAL PICK-UPBLOCK TYPE DISCRIMINATIONKSN-260B KSN-260EFORCED RESET CHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTS@CN406 ProcedureMDS-JE470 RETRY CAUSE DISPLAY MODEProcedure Reading the Display MDS-JE470Reading the Display Hexadecimal t Binary Conversion TableBUTTON DESCRIPTIONS MDS-JE470 SECTION GENERALMain unit Parts Identification3-1.DISASSEMBLY FLOW MDS-JE470 SECTION DISASSEMBLY3-3.FRONT PANEL SECTION 3-2.UPPER CASE3Connector CN830 2 Connector CN390 1Wire flat type 17core CN3 5Claw3-5.PT BOARD, VOL-SELBOARD SP model 3-4.MAIN BOARD6Two screws +BVTP3x8 3 Connector CN400 2 Wire flat type 23core CN13-7.OVER LIGHT HEAD HR901, BD BOARD 3-6.MECHANISM DECK SECTION MDM-7AMDS-JE470 4 Remove the solder five portion3-9.LOADING MOTOR ASSY M103 3-8.HOLDER ASSYMDS-JE470 2 Claw3-11.OPTICAL PICK-UP 3-10.SLED MOTOR ASSY M102, SLIDERMDS-JE470 5 Remove the claw Shift the slider in the arrowMDS-JE470 3-12.SPINDLE MOTER ASSY M1012Spindle motor ASSY M101 1 Three screws M1.7, tapping4-2.SETTING THE TEST MODE 4-1.PRECAUTIONS FOR USE OF TEST MODEMDS-JE470 SECTION TEST MODE 4-3.EXITING THE TEST MODEMDS-JE470 4-5.SELECTING THE TEST MODEDisplay Group4-5-1.Operating the Continuous Playback Mode MDS-JE4704-7.TEST MODE DISPLAYS 4-6.FUNCTIONS OF OTHER BUTTONS2. Error rate display MDS-JE4704-8.MEANINGS OF OTHER DISPLAYS 4-11.WHEN MEMORY NG IS DISPLAYED4-9.AUTOMATIC SELF-DIAGNOSISFUNCTION 4-10.INFORMATIONCheck before replacement MDS-JE470 SECTION ELECTRICAL ADJUSTMENTS5-1.PARTS REPLACEMENT AND ADJUSTMENT MDS-JE470 Adjustment flow5-4.PRECAUTIONS FOR ADJUSTMENTS 5-2.PRECAUTIONS FOR CHECKING LASER DIODE EMISSIONMDS-JE470 Optical pick-upflexible board5-6.CHECKS PRIOR TO REPAIRS 5-5.USING THE CONTINUOUSLY RECORDED DISC5-6-1.Temperature Compensation Offset Check Checking ProcedureChecking Procedure ProcedureMDS-JE470 5-6-4.Auto Check5-6-8.C PLAY Check MO Error Rate Check Checking ProcedureChecking Procedure CD Error Rate Check5-9.TEMPERATURE COMPENSATION OFFSET ADJUTMENT 5-7.INITIAL SETTING OF ADJUSTMENT VALUE5-10.LASER POWER ADJUSTMENT 5-8.RECORDING AND DISPLAYING THE Iop INFORMATIONProcedure 5-12.TRAVERSE ADJUSTMENTAdjusting Procedure MDS-JE470MDS-JE470 5-13.FOCUS BIAS ADJUSTMENTAdjusting Procedure 5-16.AUTO GAIN CONTROL OUTPUT LEVEL ADJUSTMENT 5-14.ERROR RATE CHECK5-15.FOCUS BIAS CHECK 5-14-1.CD Error Rate CheckMDS-JE470 5-17.ADJUSTING POINTS AND CONNECTING POINTSBD BOARD SIDE A BD BOARD SIDE B6-1.CIRCUIT BOARDS LOCATION MDS-JE470 SECTION DIAGRAMSPT board KEY-SWboard MAIN board DISPLAY board BD boardFor printed wiring boards For schematic diagramsMDS-JE470 WAVEFORMS -BD BoardMDS-JE470 6-2.BLOCK DIAGRAMS - BD SECTIONIC171 IC190IC310 MAIN SECTIONIC550 IC781Location MAIN BOARDPage BD BOARD SIDE AMDS-JE470 BD BOARD 2/2 Page BD BOARD 2/2 Page BD BOARD 2/2Page KMS - 260B/260EMDS-JE470 BOARDBD BOARD2/2 CN102 Page42 MDS-JE470DISPLAY BOARD CN701 Page47 7MAIN BOARD 82/2See page 51 for IC Block Diagrams 6-7.SCHEMATIC DIAGRAM - MAIN SECTION 2/2MDS-JE470 MAINSemiconductor MDS-JE470Location Semiconductor MDS-JE470Location MDS-JE470 6-10.SCHEMATIC DIAGRAM - DISPLAY SECTIONVOL-SELBOARD PT BOARDMDS-JE470 MDS-JE470 6-12.SCHEMATIC DIAGRAM - POWER SECTION4949 MDS-JE470 6-13.IC BLOCK DIAGRAMSIC101 CXA2523AR BD BOARD IC151 CXD2662R BD BOARDIC500 AK4524 MAIN BOARD MDS-JE470IC440 M54641L MAIN BOARD IC421 M5293L MAIN BOARDMDS-JE470 6-14.IC PIN FUNCTION DESCRIPTIONIC101 CXA2523AR RF Amplifier BD BOARD Pin NoPin No MDS-JE470Pin Name DesriptionMDS-JE470 PLL Phase Locked LoopPin No Pin NamePin No MDS-JE470Pin Name DescriptionIC1 M30803MG-107FPSYSTEM CONTROL MAIN BOARD MDS-JE470Pin No Pin NameADA. LATCH MDS-JE470BEEP SW MDS-JE470MDS-JE470 SECTION EXPLODED VIEWS7-1.CHASSIS SECTION FL750 7-2.FRONT PANEL SECTIONMDS-JE470 MDS-JE470 7-3.MECHANISM SECTION-1 MDM-7A312 313HR901 S102M101 M102MDS-JE470 BD ELECTRICAL PARTS LISTSECTION Ref. No MDS-JE470 BDMDS-JE470 KEY-SW MAIN DISPLAYMDS-JE470 MAIN MDS-JE470 MAINMAIN VOL-SELMDS-JE470 MDS-JE470 Date MDS-JE470 REVISION HISTORYDescription of Revision 2001.05

(KMS - 260B/260E)

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