Sony 4-216-349-0 US model 4-216-349-1 Canadian model 4-216-349-2 AEP, Singapore model, 4-216-349-5

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SECTION 5

ELECTRICAL ADJUSTMENTS

5-1. PARTS REPLACEMENT AND ADJUSTMENT

•Check and adjust the MDM and MBU as follows. The procedure changes according to the part replaced

•Temperature compensation offset check

•Laser power check

•Traverse check

•Focus bias check

•C PLAY check

•Self-recording/playback check

OK

NG

Parts Replacement and Repair

Has the OWH been replaced?

YES

NO

Has OP, IC171, IC101, or

IC121 been replaced?

YES

Initial setting of the adjustment value

NO

Has OP or IC171 been replaced?		NO

YES

IOP information recording (IOP value labeled on OP)

Has IC171 or D101 been replaced?

YES

NO

Temperature compensation offset adjustment

•Laser power adjustment

•Traverse adjustment

•Focus bias adjustment

•Error rate adjustment

•Focus bias check

•Auto gain adjustment

• Abbreviation

OP : Optical pick-up

OWH: Overwrite head

Check the sleding and spindle mechanisms.

Other causes can be suspected.

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Contents MDS-JE330 SpecificationsSELF-DIAGNOSIS Function Items of Error History Mode Items and Contents Varnig Flexible Circuit Board RepairingExploded Views Table of ContentsDisassembly DiagramsTEO Section Servicing NoteJIG for Checking BD Board Waveform IOPRecord Precedure REC/PLAY Checks Prior to Parts Replacement and AdjustmentsForced Reset Criteria for Determination Measure if unsatisfactoryBit Binary Retry Cause Display ModeHigher Bits Lower Bits Hexa Details Bit When BinaryHexadecimal Binary Location of Parts and Controls Section GeneralFront Panel Case and Front Panel Section DisassemblySlider CAM SW Board and Loading Motor M103 Base Unit MBU-5A and BD BoardExiting the Test Mode Section Test ModePrecautions for USE of Test Mode Setting the Test ModeGroup Selecting the Test Mode OUT Operating the Continuous Playback Mode Non-Volatile Memory Mode EEP Mode MIDFunctions of Other Buttons Test Mode DisplaysMeanings of Other Displays Parts Replacement and Adjustment Section Electrical AdjustmentsCreating Continuously Recorded Disc Precautions for Checking Laser Diode EmissinonPrecautions for USE of Optical PICK- UP KMS-260A Precautions for AdjustmentsSpecified Value Temperature Compensation Offset CheckLaser Power Check Checks Prior to RepairsSelf-Recording/playback Check Play Checking MO Error Rate CheckCD Error Rate Check Focus Bias CheckRecording and Displaying the IOP Information Initial Setting of Adjustment ValueTemperature Compensation Offset Adjutment Laser Power AdjustmentTraverse Adjustment Focus Bias Adjustment MO Auto Gain Control Output Level Adjustment Error Rate CheckAuto Gain Control Output Level Adjustment CD Auto Gain Control Output Level AdjustmentAdjusting Points and Connecting Points Circuit Boards Location Section DiagramsMDS-JE330 Block Diagrams BD SectionLD-LOVO Main SectionDisplay Section For schematic diagramsFor printed wiring boards WaveformsSemiconductor Location Printed Wiring Board BD SectionSchematic Diagram BD 1/2 Section Schematic Diagram BD 2/2 Section Schematic Diagram Main 1/2 Section Schematic Diagram Main 2/2 Section Printed Wiring Board Main Section Printed Wiring Board Panel Section Schematic Diagram Panel Section Printed Wiring Board BD Switch Section Schematic Diagram BD Switch Section IC Block DiagramsBD Section IC101 IC152 BH6511FS-E2 IC121 CXD2654RIC381 M5218AL IC441 LB1641 Main section IC301 UDA1341TS/N2IC406 M62016L IC101 RF Amplifier CXA2523AR BD board IC PIN FunctionsPin No Pin Name Function MNT3 Sloc MNT0 FOKMNT1 Shck MNT2 XbusyAvdd MvciAsyo AsyiFS4 TfdrFfdr FrdrIC501 System Control M30620MC-400FP Main board SDA OPT DEL OPT SEL Mode SELPB-P REC/PBCase and Back Panel Section Section Exploded Views6162 Front Panel Section225 226 206 205 Mechanism Section MDM-5A251 252 Base Unit Section MBU-5AResistors Section Electrical Parts ListDisplay Display KEY SW Main PIN, Connector 7P Inductor Vibrator MDS-JE330 Main SW VOL SEL