Sony MDS-SD1 service manual Forced Reset, Main Board Component Side

Page 9

FORCED RESET

The system microprocessor can be reset in the following procedure.

Use these procedure when the unit cannot be operated normally due to the overrunning of the microprocessor, etc.

Procedure :

Short-circuit jumper wire of JW40 and JW41 (RESET).

[MAIN BOARD] (Component Side)

3 JW40

IC821 1

JW42

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Contents MDS-JE520 SpecificationsMDM-5A MBU-5ASELF-DIAGNOSIS Function Items of Error History Mode Items and Contents Flexible Circuit Board Repairing Specification LabelParts No Disassembly Table of ContentsDiagrams Exploded ViewsJIG for Checking BD Board Waveform Section Servicing NoteRecord Precedure Criteria for Determination Measure if unsatisfactory Checks Prior to Parts Replacement and AdjustmentsMain Board Component Side Forced ResetFluorescent Indicator Tube and Mechanism Deck Cleaning of Objective Lens of Optical PickupFluorescent Indicator TUBE, LED Complete Lighting Check Attaching the Glass AssemblyServicing Position Higher Bits Lower Bits Hexa Retry Cause Display ModeCause of Retry Occurring conditions BinaryBit When Binary Higher Bits Lower Bits Hexa DetailsHexadecimal Binary Front Panel Location of Parts and Controls Section GeneralSection Disassembly Glass AssyFront Panel Base Unit and BD Board Slider CAMSW Board and Loading Motor M103 Precautions for USE of Test Mode Section Test ModeSetting the Test Mode Exiting the Test ModeGroup Selecting the Test ModeOperating the Continuous Playback Mode Non-Volatile Memory Mode EEP ModeFunctions of Other Buttons Test Mode Displays Parts Replacement and Adjustment Section Electrical AdjustmentsPrecautions for USE of Optical PICK- UP KMS-260A Precautions for Checking Laser Diode EmissinonPrecautions for Adjustments Creating Continuously Recorded DiscLaser Power Check Temperature Compensation Offset CheckChecks Prior to Repairs Specified ValueCD Error Rate Check Play Checking MO Error Rate CheckFocus Bias Check Self-Recording/playback CheckTemperature Compensation Offset Adjutment Initial Setting of Adjustment ValueLaser Power Adjustment Recording and Displaying the IOP InformationTraverse Adjustment Focus Bias Adjustment Auto 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 Circuit Boards Location Section DiagramsMDS-SD1 Block Diagrams BD SectionPB Digital out REC DigitalMain Section PBDigital outRECDigital For printed wiring boards For schematic diagramsWaveforms Display SectionSemiconductor 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 Schematic Diagram Panel Section Printed Wiring Board Panel Section Schematic Diagram Connector Section System Control To HCD-SD1 Printed Wiring Board Connector SectionMDS-SD1 BD Section IC101 IC Block DiagramsIC152 BH6511FS-E2 Main Section IC201 UDA1341TS/N2IC301 LB1641 Connector Section IC774 P82B715TD.118 IC822 M62016FP-E1IC851 M5293L IC PIN Functions IC101 CXA2523AR RF Amplifier BD BoardPin No Pin Name Function IC701 M30610MC-A01FP System Control ∝CON Main Board CHAK-IN Case and Back Panel Section Section Exploded ViewsFront Panel Section FL901 1-517-804-11 Indicator TUBE, FluorescentPanel SW Board 67 A-4724-619-A Panel BOARD, CompleteMechanism Deck Section MDM-5A Insulator F209 4-988-466-21 Spring ELECTROSTATIC, Leaf Base Unit Section MBU-5A HEAD, Over LightMotor ASSY, Sled Section Electrical Parts List Connector Connector Encoder Main Main Line Filter InductorFILTER, Line FeritePanel Panel SW MANUAL, Instruction English Accessories & Packing Materials FILTER, Clamp Ferrite CoreMANUAL, Instruction CHINESESP,HK Hardware List Screw +BSony Corporation