Record Precedure | Sony MDS-JE640 specification

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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Sony MDS-JE640 specifications Record Precedure

Contents

NEW SpecificationsInputs Outputs Three- or five Digit code Cause/Remedy Message Supplied accessoriesSELF-DIAGNOSIS Function General Items of Error History Mode Items and Contents Exploded Views Table of ContentsDisassembly Diagrams Flexible Circuit Board Repairing Section Service Notes IOP JIG for Checking BD Board Waveform Record Precedure Forced Reset Checks Prior to Parts Replacement and AdjustmentsMain Board Component Side Bit Binary Retry Cause Display Mode Hexadecimal t Binary Conversion Table Section General Front Panel Section Section Disassembly PT BOARD, VOL-SEL Board Main Board BD Board Mechanism Deck Section MDM-7A Exiting the Test Mode Section Test ModePrecautions for USE of Test Mode Setting the Test Mode Display Details Mark Group Selecting the Test Mode MENU/NO Operating the Continuous Playback Mode Functions of Other Buttons Test Mode DisplaysMode display Error rate display Information When Memory NG is DisplayedMeanings of Other Displays Automatic SELF-DIAGNOSIS Function Parts Replacement and Adjustment Section Electrical AdjustmentsCheck before replacement YES Adjustment flow Precautions for USE of Optical PICK- UP KMS-260B Precautions for Checking Laser Diode EmissionPrecautions for Adjustments Checks Prior to Repairs Using the Continuously Recorded Disc Other Checks Auto Check CD Error Rate Check Play Check MO Error Rate Check Temperature Compensation Offset Adjutment Initial Setting of Adjustment ValueLaser Power Adjustment Iop NV Save Traverse Adjustment YES Focus Bias Adjustment MO Auto Gain Control Output Level Adjustment Error Rate CheckAuto Gain Control Output Level Adjustment CD Auto Gain Control Output Level Adjustment Adjusting Points and Connecting Points Circuit Boards Location Section DiagramsFor schematic diagrams For printed wiring boards Signal Path Block Diagrams BD SectionMDS-JE640 REC Analog Main Section Main Board BD BoardDisplay Board Semiconductor Printed Wiring Board BD Section PIN 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 Diagrams IC400 LA5643 Main Board IC101 CXA2523AR RF Amplifier BD Board IC PIN Functions MNT0 FOK Mvci Tfdr IC1 M30805SGP System Control Main Board HLDA/ALE Chassis Section Section Exploded Views Panel ASSY, Front Silver Panel ASSY, Front Black AEP,UK,CIS,SP,MY 202 220 201 213 215 216 205 218 207 Mechanism MDM-7A Motor ASSY, Loading HEAD, Over LightMotor ASSY, Spindle Motor ASSY, Sled Section Electrical Parts List IC BA033FP-E2 IC TC7WU04FUTE12RMetal Chip IC MC74ACT08DTR2 Display KEY-SW Main PLUG, Connector 10P Diode PIN, Connector 3PCONNECTOR, FFC 17P PIN, Connector 4P Transistor UN2111-TX IC SN74LVU04ANSRAEP,UK,CIS Transistor UN2211-TX Composition Circuit Block ConnectorTRANSFORMER, Power CND TRANSFORMER, Power SP,MY VOL-SEL Sony Corporation