Sony MDS-JB920 service manual Items of Error History Mode Items and Contents

Page 3

Items of Error History Mode Items and Contents

Selecting the Test Mode

Display

 

 

 

 

Details of History

total rec

 

Displays the recording time.

 

 

 

 

 

 

Displayed as “r ¹¹¹¹¹¹h”.

 

 

 

 

 

 

The displayed time is the total time the laser is set to the high power state.

 

 

 

This is about 1/4 of the actual recording time.

 

 

 

 

The time is displayed in decimal digits from 0h to 65535h.

 

 

 

 

 

 

 

 

 

total play

 

Displays the play time.

 

 

 

 

 

 

Displayed as “p ¹¹¹¹¹¹h”. The time displayed is the total actual play time. Pauses are not counted.

 

 

 

The time is displayed in decimal digits from 0h to 65535h.

 

 

 

 

 

 

 

 

retry err

 

Displays the total number of retries during recording and number of retry errors during play.

 

 

 

Displayed as “r ¹¹ p¹¹”.

 

 

 

 

 

 

“r” indicates the retries during recording while “p” indicates the retry errors during play.

 

 

 

The number of retries and retry errors are displayed in hexadecimal digits from 00 to FF.

 

 

 

 

 

 

 

 

total err

 

Displays the total number of errors.

 

 

 

 

 

 

Displayed as “total ¹¹”.

 

 

 

 

 

 

The number of errors is displayed in hexadecimal digits from 00 to FF.

 

 

 

 

 

 

 

 

err history

 

Displays the 10 latest errors.

 

 

 

 

 

 

Displayed as “0 ¹ E@@”.

 

 

 

 

 

 

¹ indicates the history number. The smaller the number, the more recent is the error. (00 is the latest).

 

 

 

@@ indicates the error code.

 

 

 

 

 

 

Refer to the following table for the details. The error history can be switched by rotating the [ÊÊÊÊÊÊÊÊAMSÊÊÊÊÊÊÊÊ]- ±

 

 

 

knob.

 

 

 

 

 

 

 

 

 

 

er refresh

 

Mode which erases the “retry err”, “total err”, and “err history” histories.

 

 

 

When returning the unit to the customer after completing repairs, perform this to erase the past error history.

 

 

 

After pressing the [ÊÊÊÊÊÊÊÊAMSÊÊÊÊÊÊÊÊ]- ± button and “er refresh?” is displayed, press the [YES] button to erase the

 

 

 

history.

 

 

 

 

 

 

“Complete!” will be displayed momentarily.

 

 

 

 

 

 

Be sure to check the following when this mode has been executed.

 

 

 

The data has been erased.

 

 

 

 

 

 

The mechanism operates normally when recording and play are performed.

 

 

 

 

 

 

 

 

tm refresh

 

Mode which erases the “total rec” and “total play” histories.

 

 

 

 

These histories serve as approximate indications of when to replace the optical pickup.

 

 

 

If the optical pickup has been replaced, perform this operation and erase the history.

 

 

 

After pressing the [ÊÊÊÊÊÊÊÊAMSÊÊÊÊÊÊÊÊ]- ± button and “tm refresh?” is displayed, press the [YES] button to erase the

 

 

 

history.

 

 

 

 

 

 

“Complete!” will be displayed momentarily.

 

 

 

 

 

 

Be sure to check the following when this mode has been executed.

 

 

 

The data has been erased.

 

 

 

 

 

 

The mechanism operates normally when recording and play are performed.

 

 

 

 

 

 

 

 

Table of Error Codes

 

 

 

 

 

 

 

 

 

 

 

 

 

Error Code

 

 

 

Details of Error

Error Code

 

Details of Error

E00

 

No error

 

 

E05

 

FOK has deviated

 

 

 

 

 

 

 

E01

 

Disc error. PTOC cannot be read

E06

 

Cannot focus (Servo has deviated)

 

 

 

 

 

 

 

 

 

(DISC ejected)

E07

 

Recording retry

 

 

 

 

 

 

 

 

 

 

 

 

 

E02

 

Disc error. UTOC error

E08

 

Recording retry error

 

 

 

 

 

 

 

 

 

(DISC not ejected)

E09

 

Playback retry error

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Access error)

E03

 

Loading error

 

 

 

 

 

 

 

 

 

 

 

 

E04

 

Address cannot be read (Servo has deviated)

E0A

 

Playback retry error (C2 error)

 

 

 

 

 

 

 

 

 

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Contents Specifications MDS-JE520MDM-5A General SELF-DIAGNOSIS FunctionItems of Error History Mode Items and Contents Table of Contents DiagramsSection Servicing Notes Flexible Circuit Board Repairing VarningVaroitus IOP JIG for Checking BD Board WaveformRecord Precedure Checks Prior to Parts Replacement and Adjustments Forced ResetREC/PLAY Precedure Retry Cause Display ModeHexadecimal nBinary Conversion Table Section General Location of ControlsFront view Rear view Page Page Case Section DisassemblyMain Board Front Panel SecitonSlider CAM Mechanism Section MDM-5ASW BOARD, Loading Motor M103 Base Unit MBU-5A, BD BoardExiting the Test Mode Section Test ModePrecautions for USE of Test Mode Setting the Test ModeDisplay Contents Mark Group Selecting the Test ModeOperating the Continuous Playback Mode Non-Volatile Memory Mode EEP ModeMID Detrack check display Not used in servicing Test Mode DisplaysFunctions of Other Buttons Auto gain display Not used in servicingMeanings of Other Displays Display Contents When Lit When OffParts Replacement and Adjustment Section Electrical AdjustmentsLaser power meter Precautions for Checking Laser Diode EmissinonPrecautions for USE of Optical PICK-UP KMS-260A Precautions for AdjustmentsTraverse Check Temperature Compensation Offset CheckLaser Power Check Check Prior to RepairsSelf-Recording/playback Check Play Checking MO Error Rate CheckCD Error Rate Check Focus Bias CheckRecording and Displaying the IOP Information Initial Setting of Adjustment ValueTemperature Compensation Offset Adjutment Laser Power AdjustmentTraverse Adjustment Focus Bias Adjustment MO 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 Section Diagrams BD Board IC101 CXA2523AR RF AMP, FOCUS/TRACKING Error AMPIC PIN Function Description Sqsy SrdtSens XrstAsyo XrasXWE MvciSpfd SrdrSfdr SprdMain Board IC100 CXD8607N A/D Converter Lvdd AvddlVDD1 TEST2Main Board IC800 M30610MCA-264FP System Controller MDS-JB920 REC Digital Block Diagram Servo Section∙ Signal Path REC AnalogBlock Diagram Main Section ∙ Signal Path Play Analog OUTPlay Digital OUT Circuit Boards Location Printed Wiring Boards BD Section MDS-JB920 53 for Waveforms. See page 70 and 71 for IC Block Diagrams Schematic Diagram BD /2 SeeWaveforms BD board Main board Disp board MDS-JB920 MDS-JB920 MDS-JB920 MDS-JB920 Other layers pattern Side a US, CND Schematic Diagram Panel Section See page 54 for Waveforms CXA2523AR Schematic Diagram BD Switch SectionPrinted Wiring Board BD Switch Section IC Block Diagrams BD Board IC101IC152 BH6511FS-E2 IC121 CXD2654RCXA8042AS Main Board IC100 CXD8607NIC101 CXA8054M IC203IC200 CXD8767N SN74HCU04ANS-E20 SN74HC153ANSChassis Section Section Exploded ViewsSupplied with RV760 Front Panel Section206 201 204 205209 4-988-466-21 Spring ELECTROSTATIC, Leaf Base Unit Section MBU-5A Section Electrical Parts List CXA2523AR TANTAL. ChipDiode Diode F1J6TPDisp Main C252 Mylar SN74HC153ANS HZS6C1LHZ7.5CP-TK CXA8042AS390 LED SEL6810A-TH10 Mega Control Transistor Main PSWCoil with Core Vibrator LED SEL6210S-TH10 StandbySW VOL Sony Corporation