Record Precedure | Sony 4-216-840-0 specification

IOP DATA RECORDING AND DISPLAY WHEN OPTICAL PICK-UP AND NON-VOLATILE MEMORY (IC171 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 (IC171 of BD board), record the IOP value on the optical pick-up according to the following procedure.

Record Precedure:

1.While pressing the and p button.

=AMS +

knob and

p

button, connect the power plug to the outlet, and release the

=AMS +

knob

2.Turn the = AMS + knob to display “[Service]”, and press the [YES] button.

3.Turn the = AMS + knob to display “lop Write” (C28), 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 : Turn the = AMS + knob.

To select the digit : Press the = AMS + 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 =AMS + knob and p button, connect the power plug to the outlet, and release the =AMS + and p button.

2.Turn th = AMS + knob to display “[Service]”, and press the [YES] button.

3.Turn the = AMS + knob to display “lop Read” (C27).

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

##.# : indicates the IOP value after adjustment

5.To end, press the = AMS + knod or [MENU/NO] button to display “Iop Read”. Then press the [REPEAT] button.

knob

– 7 –

Image 7

Sony 4-216-840-0 service manual Record Precedure

Contents

MDS-JE520 SpecificationsMDM-5A SELF-DIAGNOSIS Function Items of Error History Mode Items and Contents Diagrams Table of ContentsSection Servicing Notes Varning Flexible Circuit Board Repairing IOP JIG for Checking BD Board Waveform Record Precedure Criteria for Determination Measure if unsatisfactory Checks Prior to Parts Replacement and Adjustments Precedure Retry Cause Display Mode Hexadecimal nBinary Conversion Table Section General Cover Section DisassemblyFront Panel Section Mechanism Deck Section MDM-5A Main Board Base Unit MBU-5A, BD Board Slider CAM SW BOARD, Loading Motor M103 Exiting the Test Mode Section Test ModePrecautions for USE of Test Mode Setting the Test Mode Display Contents Mark Group Selecting the Test Mode OUT Operating the Continuous Playback ModeNon-Volatile Memory Mode EEP Mode MID Functions of Other Buttons Test Mode Displays Meanings of Other Displays Parts Replacement and Adjustment Section Electrical Adjustments Laser power meter Precautions for Checking Laser Diode EmissionPrecautions for USE of Optical PICK-UP KMS-260A Precautions for Adjustments Traverse Check Temperature Compensation Offset CheckLaser Power Check Check Prior to Repairs Self-Recording/playback Check Play Checking MO Error Rate CheckCD Error Rate Check Focus Bias Check Recording and Displaying the IOP Information Initial Setting of Adjustment ValueTemperature Compensation Offset Adjustment Laser Power Adjustment Traverse Adjustment ING CONTINUOUSLY-RECORDED Disc 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 Adjustment Location IC PIN Function Description Section Diagrams Sens MNT2 XbusyXlat Srdt Asyi XrasXWE Asyo Sprd FS4Srdr Sfdr RST AderByte Cnvss LD-LOW STBChack Ldin REC Analog REC Digital Block Diagram MD Servo Section∙ Signal Path Play Analog OUT REC Analog Block Diagram Main Section CND Circuit Boards Location Semiconductor Location MDS-M100 65 for Waveforms. See page 51 for IC Block Diagram Schematic Diagram BD Board 2/2 See Printed Wiring Board SW Board Schematic Diagram SW Board IC152 BH6511FS-E2 IC121 CXD2654RMain Board IC301 ΜDA1341TS/N2 IC406 M62016L IC421 M5293L MDS-M100 Semiconductor Location Schematic Diagram Main Board 1/2 See page 65 for Waveform MDS-M100 Ref. No Location D741 D742 IC761 Q741 Q742 Q767 MDS-M100 Exploded Views SectionCover Section AEP, SP Chassis Section 221 A-4680-409-A Holder Complete Assy Mechanism Section MDM-5A201 206 204 205 209 4-988-466-11 Spring ELECTROSTATIC, Leaf Base Unit Section MBU-5A AC Select BD Section Electrical Parts List Transistor FMW1 Short SwitchIC/TRANSISTOR CXA2523AR Main ConnectorCeramic Carbon InductorExcept US, CND Main Panel Panel SW Trans Sony Corporation