Sony MDS-NT1 SELF-DIAGNOSIS Function, Playback Recording Cause/Remedy Indicator Green Red

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MDS-NT1

SELF-DIAGNOSIS FUNCTION

The self-diagnosis function consists of error codes for customers which are displayed automatically when errors occur, and error codes which show the error history in the test mode during servicing. For details on how to view error codes for the customer, refer to the following box in the instruction manual. For details on how to check error codes during servicing, refer to the following “Procedure for using the Self-Diagnosis Function (Error History Display Mode)”.

The deck’s self-diagnosis function automatically checks the condition of the MD deck when an error occurs, then indicates the nature of the error through the two indicators. If the indicators light up or flash, find them in the following table and perform the indicated countermeasure. Should the problem persist, consult your nearest Sony dealer.

Playback

Recording

Cause/Remedy

Indicator

Indicator

 

(green)

(red)

 

 

 

 

 

Flashes

The recording was not made properly. (C13/Rec Error)

 

 

, Set the deck in a stable surface, and repeat the recording procedure.

 

 

 

 

Flashes

The inserted MD is dirty (with smudges, fingerprints, etc.), scratched, or

 

 

substandard in quality. (C13/Rec Error)

 

 

, Replace the disc and repeat the recording procedure.

 

 

 

Flashes

 

The deck could not read the TOC on the MD properly. (C13/Read Error)

 

 

, Take out the MD and insert it again.

 

 

 

 

Lights up

The deck could not read the TOC on the MD properly. (C14/Toc Error)

 

 

, Insert another disc.

 

 

, If possible, erase all the tracks on the MD.

 

 

 

Lights up

Lights up

There is an error in the internal data that the deck needs in order to operate.

 

 

(E0001/MEMORY NG)

 

 

, Consult your nearest Sony dealer.

 

 

 

Flashes

Flashes

There is a problem with the optical pickup. (E0101/LASER NG)

 

 

, Consult your nearest Sony dealer.

 

 

Both indicators flash alternately

An MD loading problem has occurred. (E0201/LOADING NG)

 

 

, Consult your nearest Sony dealer.

 

 

 

PROCEDURE FOR USING THE SELF-DIAGNOSIS FUNCTION (ERROR HISTORY DISPLAY MODE)

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)

Note 3: Perform the self-diagnosis function in the “error history display mode” in the test mode. The following describes the least required procedure. Be careful not to enter other modes by mistake. If you set other modes accidentally, click the [MENU/NO] to exit the mode.

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] and when “[Service]” is displayed, click the [ENTER/YES].

6.Click the [JOG UP] or [JOG DOWN] to display “Err Display”.

7.Click the [ENTER/YES] to sets the error history mode and displays “op rec tm”.

8.Select the contents to be displayed or executed using the [JOG UP] or [JOG DOWN].

9.Click the [PUSH] to display or execute the contents selected.

10.Click the [PUSH] another time returns to step 8.

11.Click the [MENU/NO] to display “Err Display” and release the error history mode.

12.To release the test mode, quit the software for test mode after the [REPEAT] clicked.

Note: When retrying this operation, start from step1.

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Contents Specifications MDS-NT1Playback Recording Cause/Remedy Indicator Green Red MDS-NT1 SELF-DIAGNOSIS FunctionItems of Error History Mode Items and Contents MDS-NT1Table of Error Codes Error Code Details of ErrorDiagrams Table of ContentsDisassembly SELF-DIAGNOSIS FunctionFlexible Circuit Board Repairing MDS-NT1 Section Servicing Notes BD Board Conductor SideJIG for Checking BD Board Waveform Record Procedure Checks Prior to Parts Replacement and Adjustments in MD Criteria for Determination Measure if unsatisfactoryMicrocomputer Version Display Service ModeSoftware Reset System RequirementsMDS-NT1 Section General Front ViewMDS-NT1 Section Disassembly Disassembly FlowCase Upper Main Board MD Mechanism Deck MDM-7S2BFront Panel Section BD BOARD, Over Write Head HR901Holder Assy Loading Motor Assy M103Sled Motor Assy M102 Optical PICK-UP KMS-262ESpindle Motor Assy M101 Setting the Test Mode MDS-NT1 Section Test ModePrecautions for USE of Test Mode Releasing the Test ModeSelecting the Test Mode CheckOperating the Continuous Playback Mode Automatic SELF-DIAGNOSIS Function InformationCheck before replacement MDS-NT1 Section Electrical AdjustmentsParts Replacement and Adjustment Adjustment flow YESHOW to Identify Optical PICK-UP KMS- 262A/KMS-262E Precautions for Checking Laser Diode EmissionPrecautions for USE of Optical PICK- UP KMS-262A/262E KMS-262A KMS-262EPrecautions for Adjustments Laser power meterLaser Power Check Using the Continuously Recorded DiscTemperature Compensation Offset Check Checks Prior to RepairsTraverse Check Auto CheckOther Checks Focus Bias Check Play Check MO Error Rate CheckCD Error Rate Check Self-Recording/playback CheckLaser Power Adjustment Initial Setting of Adjustment ValueTemperature Compensation Offset Adjustment Recording and Displaying the IopTraverse Adjustment Iop NV SaveFocus Bias Adjustment ENTER/YES buttonCD Auto Gain Control Output Level Adjustment Error Rate CheckAuto Gain Control Output Level Adjustment MO Auto Gain Control Output Level AdjustmentAdjustment and Checking Loacation MDS-NT1 Section Diagrams Block Diagram Servo SectionBlock Diagram Main Section 36 aWaveforms BD Board 22.7 nsPrinted Wiring Board BD Board Semiconductor Location4AA 3AA Schematic Diagram BD Board 2/2 See page 38 for Waveforms B3B 2BBPrinted Wiring Board Main Board Component Side IC451Printed Wiring Board Main Board Conductor Side Main Board1AA AA2 AA3 GND Printed Wiring Board Panel Board Panel Board Conductor SideSchematic Diagram Panel Board IC Block Diagrams BD Board CXA2523ARIC401 BH6519FS-E2 Main BoardIC440 M54641L BD Board IC101 CXA2523AR RF AMP, FOCUS/TRACKING Error AMP IC PIN Function DescriptionMNT2 Xbusy Xcas APC Main Board IC301 M30835FJGP-01 System Controller PLAY-SW Pin No Extal Section MDS-NT1 Exploded Views Case Section56 4-951-620-01 Screw 2.6X8, +BVTP 104 105 Case B Section102 101 103 317 303 307 311 310 319 304 308302 306 320 301 305 313 314 315 316 364 359358 357 360 356 355 354 362 359 352MDS-NT1 Section Electrical Parts List ResistorsDiode Switch MDS-NT1 MainFB1 MDS-NT1 Main Panel MiscellaneousMotor ASSY, Loading Revision History