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Sony MDS-JE770 Holder Assy, LOADING MOTOR ASSY M103, Claw, Holder ASSY, 3Motor ASSY, loading M103

Models: MDS-JE770

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MDS-JE770

3-8. HOLDER ASSY

2 Claw

6 Holder ASSY

4Boss

4 Boss

1Spring (holder), tension

3-9. LOADING MOTOR ASSY (M103)

1Belt (loading)

2Two screws (PWH1.7x2.5)

3Motor ASSY, loading (M103)

Page 17

Image 17

Sony MDS-JE770 specifications Holder Assy, LOADING MOTOR ASSY M103, Claw, Holder ASSY, 4Boss 4 Boss 1Spring holder, tension

Contents

9-873-890-11 SPECIFICATIONSMDS-JE770 MINIDISC DECKSupplied accessories Genera l Power requirementsMDS-JE770 SELF-DIAGNOSISFUNCTIONMDS-JE770 ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTSSelecting the Test Mode 3. DISASSEMBLY TABLE OF CONTENTS6. DIAGRAMS Table of Error CodesNotes on chip component replacement MDS-JE770 SECTION SERVICE NOTESFlexible Circuit Board Repairing NOTES ON LASER DIODE EMISSION CHECKMDS-JE770 JIG FOR CHECKING BD BOARD WAVEFORMMDS-JE770 Record PrecedureDisplay Precedure MDS-JE770 OPTICAL PICK-UPBLOCK TYPE DISCRIMINATIONKSN-260B KSN-260EFORCED RESET CHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTSProcedure @CN406MDS-JE770 RETRY CAUSE DISPLAY MODEProcedure MDS-JE770 Reading the DisplayReading the Display Hexadecimal t Binary Conversion TableBUTTON DESCRIPTIONS MDS-JE770 SECTION GENERALMain unit Parts Identification3-1.DISASSEMBLY FLOW MDS-JE770 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 BOARD3 Connector CN400 2 Wire flat type 23core CN1 1 Wire flat type 27core CN2 7 MAIN board3-7.OVER LIGHT HEAD HR901, BD BOARD 3-6.MECHANISM DECK SECTION MDM-7AMDS-JE770 4 Remove the solder five portion3-9.LOADING MOTOR ASSY M103 3-8.HOLDER ASSYMDS-JE770 2 Claw3-11.OPTICAL PICK-UP 3-10.SLED MOTOR ASSY M102, SLIDERMDS-JE770 5 Remove the claw Shift the slider in the arrowMDS-JE770 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-JE770 SECTION TEST MODE 4-3.EXITING THE TEST MODEMDS-JE770 4-5.SELECTING THE TEST MODEDisplay GroupMDS-JE770 4-5-1.Operating the Continuous Playback Mode4-6.FUNCTIONS OF OTHER BUTTONS 2. Error rate display4-7.TEST MODE DISPLAYS 1. Mode display4-8.MEANINGS OF OTHER DISPLAYS 4-11.WHEN MEMORY NG IS DISPLAYED4-9.AUTOMATIC SELF-DIAGNOSISFUNCTION 4-10.INFORMATIONCheck before replacement MDS-JE770 SECTION ELECTRICAL ADJUSTMENTS5-1.PARTS REPLACEMENT AND ADJUSTMENT MDS-JE770 Adjustment flow5-4.PRECAUTIONS FOR ADJUSTMENTS 5-2.PRECAUTIONS FOR CHECKING LASER DIODE EMISSIONMDS-JE770 Optical pick-upflexible board5-6-1.Temperature Compensation Offset Check 5-5.USING THE CONTINUOUSLY RECORDED DISCChecking Procedure 5-6-2.Laser Power Check5-6-5.Other Checks 5-6-4.Auto Check5-6-6.Traverse Check ProcedureCD Error Rate Check 5-6-8.C PLAY Check MO Error Rate Check5-6-7.Focus Bias Check 5-6-9. Self-Recording/playbackCheck5-9.TEMPERATURE COMPENSATION OFFSET ADJUTMENT 5-7.INITIAL SETTING OF ADJUSTMENT VALUE5-10.LASER POWER ADJUSTMENT Setting Procedure5-11.Iop NV SAVE 5-12.TRAVERSE ADJUSTMENTProcedure Adjusting ProcedureMDS-JE770 5-13.FOCUS BIAS ADJUSTMENTAdjusting Procedure 5-16.AUTO GAIN CONTROL OUTPUT LEVEL ADJUSTMENT 5-14.ERROR RATE CHECK5-14-1.CD Error Rate Check 5-14-2.MO Error Rate CheckBD BOARD SIDE A 5-17.ADJUSTING POINTS AND CONNECTING POINTSBD BOARD SIDE B MDS-JE7706-1.CIRCUIT BOARDS LOCATION MDS-JE770 SECTION DIAGRAMSPT board KEY-SWboard MAIN board HP board KB boardFor printed wiring boards For schematic diagramsWAVEFORMS -BD Board MAIN BoardMDS-JE770 6-2.BLOCK DIAGRAMS - BD SECTIONIC171 IC190IC310 MAIN SECTIONIC550 IC740Page LocationSemiconductorOVER SemiconductorMDS-JE770 BD BOARD 2/2 Page BD BOARD 2/2 Page BD BOARD 2/2Page KMS - 260B/260EMDS-JE770 BOARDPage44 MDS-JE770IC440 MDS-JE770Location SemiconductorMDS-JE770 Semiconductor MDS-JE770Location MDS-JE770 6-10.SCHEMATIC DIAGRAM - DISPLAY SECTION4747 MDS-JE770 PT BOARDBOARD VOL-SEL4949 6-12.SCHEMATIC DIAGRAM - POWER SECTIONMDS-JE770 MAIN BOARD 2/2 CN400 PageIC101 CXA2523AR BD BOARD 6-13.IC BLOCK DIAGRAMSIC151 CXD2662R BD BOARD IC141IC440 M54641L MAIN BOARD IC500 AK4524 MAIN BOARDIC421 M5293L MAIN BOARD MDS-JE770MDS-JE770 6-14.IC PIN FUNCTION DESCRIPTIONIC101 CXA2523AR RF Amplifier BD BOARD Pin No MDS-JE770Pin Name DesriptionMDS-JE770 PLL Phase Locked LoopAbbreviation EFM Eight to Fourteen Modulation VCO Voltage Controlled OscillatorTFDR MDS-JE770MDS-JE770 IC1 M30803MG-106FPSYSTEM CONTROL MAIN BOARDPin No Pin NameADA. LATCH MDS-JE770BEEP SW MDS-JE770MDS-JE770 IC760 MSM9201-04GS-KFL DRIVER DISPLAY BOARDMDS-JE770 SECTION EXPLODED VIEWS7-1.CHASSIS SECTION MDS-JE770 7-2.FRONT PANEL SECTIONnot supplied supplied with J790MDS-JE770 7-3.MECHANISM SECTION-1 MDM-7A312 313HR901 S102M103 MDS-JE770MDS-JE770 ELECTRICAL PARTS LISTSECTION Ref. No MDS-JE770MDS-JE770 DISPLAY HP KB KEY-SW MDS-JE770 KEY-SWMAIN MDS-JE770 MAIN Q490 MDS-JE770 MAINVOL-SEL MDS-JE770 MAIN PTMDS-JE770 MEMODate MDS-JE770 REVISION HISTORYDescription of Revision 2001.05