Sony MDS-JE640 HEAD, Over Light, Motor ASSY, Spindle, Motor ASSY, Sled, Motor ASSY, Loading

Page 57

7-4. MECHANISM SECTION-2 (MDM-7A)

259

HR901

258

260

256 264

257

255	259

254262

252

S102

M101

267

268

261

253

253

M103

252

265

#3262

#3

253

266

252

253

263

M102

251

The components identified by	Les composants identifiés par
mark 0 or dotted line with mark	une marque 0 sont critiques
0 are critical for safety.	pour la sécurité.
Replace only with part number	Ne les remplacer que par une
specified.	pièce portant le numéro spécifié.

Ref. No.

Part No.

Description

Remarks

251A-4725-054-A BD BOARD,COMPLETE

2524-908-618-21 SCREW (+BTP) (2X6)

2533-372-761-01 SCREW (M1.7), TAPPING

2544-226-993-01 RACK

2554-227-014-01 SPRING (RACK), COMPRESSION

2564-226-992-01 BASE, SL

2571-678-514-11 FLEXIBLE BOARD

0258 A-4672-541-A OPTICAL PICK-UP KMS-260B/J1N

2594-988-560-01 SCREW (+P 1.7X6)

2604-996-265-01 SHAFT, MAIN

2614-226-989-01 CHASSIS

2624-211-036-01 SCREW (1.7X2.5), +PWH

Ref. No.

Part No.

Description

Remarks

2634-226-990-01 BASE (BU-A)

2644-227-023-01 SPRING (SPINDLE), TORSION

2654-227-004-01 GEAR (LC)

2664-227-005-01 GEAR (LD)

2674-227-009-01 GEAR (SD)

2684-227-008-01 GEAR (SC)

HR901	1-500-670-11	HEAD, OVER LIGHT
M101	A-4672-898-A	MOTOR ASSY, SPINDLE
M102	A-4672-900-A	MOTOR ASSY, SLED
M103	A-4672-975-A	MOTOR ASSY, LOADING
S102	1-771-957-11	SWITCH, PUSH (2 KEY) (REFLECT/PROTECT SW)

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Contents Inputs SpecificationsOutputs NEWSELF-DIAGNOSIS Function Supplied accessoriesGeneral Three- or five Digit code Cause/Remedy MessageItems of Error History Mode Items and Contents Disassembly Table of ContentsDiagrams Exploded ViewsFlexible Circuit Board Repairing Section Service NotesIOP JIG for Checking BD Board WaveformRecord Precedure Checks Prior to Parts Replacement and Adjustments Forced ResetMain Board Component Side Bit Binary Retry Cause Display ModeHexadecimal t Binary Conversion Table Section General Front Panel Section Section DisassemblyPT BOARD, VOL-SEL Board Main BoardBD Board Mechanism Deck Section MDM-7APrecautions for USE of Test Mode Section Test ModeSetting the Test Mode Exiting the Test ModeDisplay Details Mark Group 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 InformationSection Electrical Adjustments Parts Replacement and AdjustmentCheck before replacement YES Adjustment flowPrecautions for Checking Laser Diode Emission Precautions for USE of Optical PICK- UP KMS-260BPrecautions for Adjustments Checks Prior to Repairs Using the Continuously Recorded DiscOther Checks Auto CheckCD Error Rate Check Play Check MO Error Rate CheckInitial Setting of Adjustment Value Temperature Compensation Offset AdjutmentLaser Power Adjustment Iop NV Save Traverse AdjustmentYES Focus Bias AdjustmentAuto 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 For schematic diagrams Section DiagramsFor printed wiring boards Circuit Boards LocationBlock Diagrams BD Section Signal PathMDS-JE640 REC Analog Main SectionBD Board Main BoardDisplay Board Semiconductor Printed Wiring Board BD SectionPIN PIN Function Printed Wiring Board Main Section Side a Printed Wiring Board Main Section Side B IC1IC2 PIN MDS-JE640 Schematic Diagram Main /3 See page 47 for IC Block Diagrams Printed Wiring Board Power Section Printed Wiring Board Display Section Schematic Diagram Display Section See page 34 for Waveforms IC101 CXA2523AR BD Board IC Block DiagramsIC400 LA5643 Main Board IC101 CXA2523AR RF Amplifier BD Board IC PIN FunctionsMNT0 FOK Mvci Tfdr IC1 M30805SGP System Control Main Board HLDA/ALE Chassis Section Section Exploded ViewsPanel ASSY, Front Silver Panel ASSY, Front Black AEP,UK,CIS,SP,MY202 220 201 213 215 216 205 218 207 Mechanism MDM-7AMotor ASSY, Spindle HEAD, Over LightMotor ASSY, Sled Motor ASSY, LoadingSection Electrical Parts List Metal Chip IC TC7WU04FUTE12RIC MC74ACT08DTR2 IC BA033FP-E2Display KEY-SW Main CONNECTOR, FFC 17P PIN, Connector 3PPIN, Connector 4P PLUG, Connector 10P DiodeAEP,UK,CIS IC SN74LVU04ANSRTransistor UN2211-TX Transistor UN2111-TXTRANSFORMER, Power CND ConnectorTRANSFORMER, Power SP,MY Composition Circuit BlockVOL-SEL Sony Corporation