Sony MDS-JE640 specifications Record Precedure

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Iop DATA RECORDING AND DISPLAY WHEN OPTICAL PICK-UP AND NON-VOLATILE MEMORY (IC195 OF BD BOARD) ARE REPLACED

The Iop value labeled on the optical pick-up can be recorded in the non-volatile memory. By recording the value, it will eliminate the need to look at the value on the label of the optical pick-up. When replacing the optical pick-up or non-volatile memory (IC195 of BD board), record the Iop value on the optical pick-up according to the following procedure.

Record Precedure:

1.While pressing the lAMS L knob and x button, connect the power plug to the outlet, and release the lAMS L knob and x button.

2.Rotate the lAMS L knob to display “[Service]”, and press the YES button.

3.Rotate the lAMS L knob to display “Iop Write” (C05), and press the YES button.

4.The display becomes “Ref=@@@.@” (@ is an arbitrary number) and the numbers which can be changed will blink.

5.Input the Iop value written on the optical pick-up.

To select the number : Rotate the lAMS L knob.

To select the digit : Press the lAMS L knob.

6.When the YES button is pressed, the display becomes “Measu=@@@.@” (@ is an arbitrary number).

7.As the adjustment results are recorded for the 6 value. Leave it as it is and press the YES button.

8.“Complete!” will be displayed momentarily. The value will be recorded in the non-volatile memory and the display will become “Iop Write”.

9.Press the REPEAT button to complete.

Display Precedure:

1.While pressing the lAMS L knob and x button, connect the power plug to the outlet, and release the lAMS L knob and x button.

2.Rotate the lAMS L knob to display “[Service]”, and press the YES button.

3.Rotate the lAMS L knob to display “Iop Read” (C26).

4.“@@.@/##.#” is displayed and the recorded contents are displayed. @@.@ : indicates the Iop value labeled on the pick-up.

##.# : indicates the Iop value after adjustment

5.To end, press the lAMS L button or MENU/NO button to display “Iop Read”. Then press the REPEAT button.

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Contents NEW SpecificationsInputs OutputsThree- or five Digit code Cause/Remedy Message Supplied accessoriesSELF-DIAGNOSIS Function GeneralItems of Error History Mode Items and Contents Exploded Views Table of ContentsDisassembly DiagramsFlexible Circuit Board Repairing Section Service NotesIOP JIG for Checking BD Board WaveformRecord Precedure Forced Reset Checks Prior to Parts Replacement and AdjustmentsMain 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-7AExiting the Test Mode Section Test ModePrecautions for USE of Test Mode Setting the Test ModeDisplay Details Mark Group Selecting the Test ModeMENU/NO Operating the Continuous Playback ModeFunctions of Other Buttons Test Mode DisplaysMode display Error rate displayInformation When Memory NG is DisplayedMeanings of Other Displays Automatic SELF-DIAGNOSIS FunctionParts Replacement and Adjustment Section Electrical AdjustmentsCheck before replacement YES Adjustment flowPrecautions for USE of Optical PICK- UP KMS-260B Precautions for Checking Laser Diode EmissionPrecautions for Adjustments Checks Prior to Repairs Using the Continuously Recorded DiscOther Checks Auto CheckCD Error Rate Check Play Check MO Error Rate CheckTemperature Compensation Offset Adjutment Initial Setting of Adjustment ValueLaser Power Adjustment Iop NV Save Traverse AdjustmentYES Focus Bias AdjustmentMO 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 DiagramsFor schematic diagrams For printed wiring boardsSignal Path Block Diagrams BD SectionMDS-JE640 REC Analog Main SectionMain Board BD BoardDisplay Board Semiconductor Printed Wiring Board BD SectionPIN PIN Function Printed Wiring Board Main Section Side a IC1 Printed Wiring Board Main Section Side BIC2 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, Loading HEAD, Over LightMotor ASSY, Spindle Motor ASSY, SledSection Electrical Parts List IC BA033FP-E2 IC TC7WU04FUTE12RMetal Chip IC MC74ACT08DTR2Display KEY-SW Main PLUG, Connector 10P Diode PIN, Connector 3PCONNECTOR, FFC 17P PIN, Connector 4PTransistor UN2111-TX IC SN74LVU04ANSRAEP,UK,CIS Transistor UN2211-TXComposition Circuit Block ConnectorTRANSFORMER, Power CND TRANSFORMER, Power SP,MYVOL-SEL Sony Corporation