Sony MDS-NT1 service manual Record Procedure

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MDS-NT1

Note 1: The test mode and recording of this set are controlled by a personal computer, thus requiring the set to be connected to the PC. Prepare the personal computer in which necessary software is already installed.

•Attached software “OpenMG Jukebox” (necessary for recording (check in, check out)) (Part No. : 4-237-880-01)

•Software for test mode “TestMode_S.exe” (“TestMode_S.exe” and essential files “data_files.csv”, “Net MDUSB.dil” are distributed to- gether with the Service Manual. For the test mode, copy these three files in the same folder beforehand)

Note 2: In the operation in the test mode, the operational description requiring “click [xxx]” means that you have to click the button on the screen. (“xxx” indicates the button name)

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 optical pick-up label. 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 Procedure:

1.Press the [B/>] button and [x/Z] button until the NetMD indicator turns off (for more than 3 seconds). (During this step, the USB cable must be disconnected)

2.Connect the set to the PC with the attached USB cable.

3.Start up the software for test mode.

4.Click the [TEST MODE].

5.Click the [JOG UP] or [JOG DOWN] to display “[Service]”, and click the [ENTER/YES].

6.Click the [JOG UP] or [JOG DOWN] to display “Iop Write” (C05), and click the [ENTER/YES].

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

8.Input the Iop value written on the optical pick-up label.

To select the number : Click the [JOG UP] or [JOG DOWN].

To select the digit : Click the [PUSH].

9.When the [ENTER/YES] is clicked, the display becomes “Measu=@@@.@” (@ is an arbitrary number).

10.As the adjustment results are recorded for the 6 value. Leave it as it is and click the [PUSH].

11.“Complete!” will be displayed momentarily. The value will be recorded in the non-volatile memory and the display will become “Iop Write (C05)”.

12.Quit the software for test mode after the [REPEAT] clicked.

Note: When retrying this operation start from step1.

Display Procedure:

1.Press the [B/>] button and [x/Z] button until the NetMD indicator turns off (for more than 3 seconds). (During this step, the USB cable must be disconnected)

2.Connect the set to the PC with the attached USB cable.

3.Start up the software for test mode.

4.Click the [TEST MODE].

5.Click the [JOG UP] or [JOG DOWN] to display “[Service]”, and click the [ENTER/YES].

6.Click the [JOG UP] or [JOG DOWN] to display “Iop Read” (C26), and click the [ENTER/YES].

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

##.# : indicates the Iop value after adjustment

8.To end, click the [PUSH] and [MENU/NO] to display “Iop Read” (C26).

9.Quit the software for test mode after the [REPEAT] clicked.

Note: When retrying this operation start from step1.

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Contents MDS-NT1 SpecificationsMDS-NT1 SELF-DIAGNOSIS Function Playback Recording Cause/Remedy Indicator Green RedMDS-NT1 Items of Error History Mode Items and ContentsError Code Details of Error Table of Error CodesDisassembly Table of ContentsDiagrams SELF-DIAGNOSIS FunctionFlexible Circuit Board Repairing BD Board Conductor Side MDS-NT1 Section Servicing NotesJIG for Checking BD Board Waveform Record Procedure Criteria for Determination Measure if unsatisfactory Checks Prior to Parts Replacement and Adjustments in MDSoftware Reset Service ModeMicrocomputer Version Display System RequirementsFront View MDS-NT1 Section GeneralDisassembly Flow MDS-NT1 Section DisassemblyCase Upper MD Mechanism Deck MDM-7S2B Main BoardBD BOARD, Over Write Head HR901 Front Panel SectionLoading Motor Assy M103 Holder AssyOptical PICK-UP KMS-262E Sled Motor Assy M102Spindle Motor Assy M101 Precautions for USE of Test Mode MDS-NT1 Section Test ModeSetting the Test Mode Releasing the Test ModeCheck Selecting the Test ModeOperating the Continuous Playback Mode Information Automatic SELF-DIAGNOSIS FunctionMDS-NT1 Section Electrical Adjustments Parts Replacement and AdjustmentCheck before replacement YES Adjustment flowPrecautions for USE of Optical PICK- UP KMS-262A/262E Precautions for Checking Laser Diode EmissionHOW to Identify Optical PICK-UP KMS- 262A/KMS-262E KMS-262A KMS-262ELaser power meter Precautions for AdjustmentsTemperature Compensation Offset Check Using the Continuously Recorded DiscLaser Power Check Checks Prior to RepairsAuto Check Other ChecksTraverse Check CD Error Rate Check Play Check MO Error Rate CheckFocus Bias Check Self-Recording/playback CheckTemperature Compensation Offset Adjustment Initial Setting of Adjustment ValueLaser Power Adjustment Recording and Displaying the IopIop NV Save Traverse AdjustmentENTER/YES button Focus Bias AdjustmentAuto Gain Control Output Level Adjustment Error Rate CheckCD Auto Gain Control Output Level Adjustment MO Auto Gain Control Output Level AdjustmentAdjustment and Checking Loacation Block Diagram Servo Section MDS-NT1 Section Diagrams36 a Block Diagram Main Section22.7 ns Waveforms BD BoardSemiconductor Location Printed Wiring Board BD Board4AA 3AA B3B 2BB Schematic Diagram BD Board 2/2 See page 38 for WaveformsIC451 Printed Wiring Board Main Board Component SideMain Board Printed Wiring Board Main Board Conductor Side1AA AA2 AA3 GND Panel Board Conductor Side Printed Wiring Board Panel BoardSchematic Diagram Panel Board CXA2523AR IC Block Diagrams BD BoardMain Board IC401 BH6519FS-E2IC440 M54641L IC PIN Function Description BD Board IC101 CXA2523AR RF AMP, FOCUS/TRACKING Error AMPMNT2 Xbusy Xcas APC Main Board IC301 M30835FJGP-01 System Controller PLAY-SW Pin No Extal Case Section Section MDS-NT1 Exploded Views56 4-951-620-01 Screw 2.6X8, +BVTP Case B Section 102 101 103104 105 311 310 319 304 308 302 306 320 301 305 313 314 315 316317 303 307 358 357 360 356 359364 355 354 362 359 352Resistors MDS-NT1 Section Electrical Parts ListDiode MDS-NT1 Main SwitchFB1 Miscellaneous MDS-NT1 Main PanelMotor ASSY, Loading Revision History
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