Sony MDM-7A, NEW, KMS-2608/J1N specifications Items of Error History Mode Items and Contents

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1.While pressing the AMS knob and x button, connect the power plug to the outlet, and release the AMS knob and x button. When the test mode is set, “[Check]” will be displayed.

2.Rotate the AMS knob and when “[Service]” is displayed, press the YES button.

3.Rotate the AMS knob and display “Err Display”.

4.Pressing the YES button sets the error history mode and displays “op rec tm”.

5.Select the contents to be displayed or executed using the AMS knob.

6.Pressing the AMS knob will display or execute the contents selected.

7.Pressing the AMS knob another time returns to step 4.

8.Pressing the MENU/NO button displays “Err Display” and exits the error history mode.

9.To exit the test mode, press the REPEAT button. The unit sets into the STANDBY state, the disc is ejected, and the test mode ends.

ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTS

Selecting the Test Mode

Display

History

op rec tm

Displays the total recording time.

 

When the total recording time is more than 1 minute, displays the hour and minute

 

When less than 1 minute, displays “Under 1 min”

 

The display time is the time the laser is set to high power, which is about 1/4 of the actual recording time.

 

 

op play tm

Displays the total playback time.

 

When the total playback time is more than 1 minute, displays the hour and minute

 

When less than 1 minute, displays “Under 1 min”

 

 

spdl rp tm

Displays the total rotating time of the spindle motor.

 

When the total rotating time is more than 1 minute, displays the hour and minute

 

When less than 1 minute, displays “Under 1 min”

 

 

retry err

Displays the total number of retry errors during recording and playback

 

Displays “r xx p yy”. xx is the number of errors during recording. yy is the number of errors during playback.

 

This is displayed in hexadecimal from 00 to FF.

 

 

total err

Displays the total number of errors

 

Displays “total xx”. This is displayed in hexadecimal from 00 to FF.

 

 

err history

Displays the past ten errors.

 

Displays “0x ErrCd@@”.

 

X is the history number. The younger the number, the more recent is the history (00 is the latest). @@ is the error

 

code.

 

Select the error history number using the AMS knob.

 

 

retry adrs

Displays the past five retry addresses.

 

Displays “xx ADRS yyyy”, xx is the history number, yyyy is the cluster with the retry error.

 

Select the error history number using the AMS knob.

 

 

er refresh

Mode for erasing the error and retry address histories

 

Procedure

 

1. Press the AMS knob when displayed as “er refresh”.

 

2. Press the YES button when the display changes to “er refresh?”.

 

When “complete!” is displayed, it means erasure has completed.

 

Be sure to check the following after executing this mode.

 

*Data has been erased.

 

*Perform recording and playback, and check that the mechanism is normal.

 

 

op change

Mode for erasing the total time of op rec tm, op play tm.

 

These histories are based on the time of replacement of the optical pickup. If the optical pick-up has been replaced,

 

perform this procedure and erase the history.

 

Procedure

 

1. Press the AMS knob when displayed as “op change”.

 

2. Press the YES button when the display changes to “op change?”.

 

When “Complete!” is displayed, it means erasure has completed.

 

 

spdl change

Mode for erasing the total spdl rp tm time

 

These histories are based on the time of replacement of the spindle motor. If the spindle motor has been replaced,

 

perform this procedure and erase the history.

 

Procedure

 

1. Press the AMS knob when displayed as “spdl change”

 

2. Press the YES button when the display changes to “spdl change?”

 

When “Complete!” is displayed, it means erasure has completed.

 

 

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Contents Specifications InputsOutputs General Where purchased Power requirementsSupplied accessories SELF-DIAGNOSIS FunctionItems of Error History Mode Items and Contents Exploded Views Table of ContentsDisassembly DiagramsLeakage Section Service NotesSafety CHECK-OUT Flexible Circuit Board RepairingIOP JIG for Checking BD Board WaveformRecord Precedure Checks Prior to Parts Replacement and Adjustments Forced ResetMain Board Component Side Bit Binary Retry Cause Display ModeBit When Binary Higher Bits Lower Bits Hexa DetailsHexadecimal Binary Section General Front Panel Section Section DisassemblyPT BOARD, VOL-SEL Board Main BoardBD Board Mechanism Deck Section MDM-7AExiting the Test Mode Section Test ModePrecautions for USE of Test Mode Setting the Test ModeDisplay Details Mark Group Selecting the Test ModeMENU/NO Operating the Continuous Playback ModeMID OUTFunctions of Other Buttons Test Mode DisplaysMode display Error rate displayInformation When Memory NG is DisplayedMeanings of Other Displays Automatic SELF-DIAGNOSIS FunctionSection Electrical Adjustments Parts Replacement and AdjustmentCheck before replacement YES Adjustment flowPrecautions for Checking Laser Diode Emission Precautions for USE of Optical PICK- UP KMS-260BPrecautions for Adjustments Checks Prior to Repairs Using the Continuously Recorded DiscTraverse Waveform Auto CheckOther Checks Traverse CheckSelf-Recording/playback Check Play Check MO Error Rate CheckCD Error Rate Check Focus Bias CheckInitial Setting of Adjustment Value Temperature Compensation Offset AdjutmentLaser Power Adjustment Iop NV Save Traverse AdjustmentYES Focus Bias AdjustmentMO 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 Circuit Boards Location Section DiagramsFor schematic diagrams For printed wiring boardsMDS-JE440 Block Diagrams BD SectionSclk Cclk Control Generator OSC Main SectionBD Board Main BoardDisplay Board Semiconductor Printed Wiring Board BD SectionPIN PIN Function Printed Wiring Board Main Section Side a Printed Wiring Board Main Section Side B PIN MDS-JE440 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 DiagramsIC400 LA5643 Main Board Pin No Pin Name Function IC PIN FunctionsMNT3 Sloc MNT0 FOKMNT1 Shck MNT2 XbusyAvdd MvciAsyo AsyiFS4 TfdrFfdr FrdrIC1 M30805SGP System Control Main Board HLDA/ALE Chassis Section Section Exploded ViewsNot supplied FL771 202 220 201 213 215 216 205 218 207 Mechanism MDM-7A259 Description Remarks Ref. No Section Electrical Parts ListIC TC7WU04FUTE12R Display KEY-SW SWITCH, Keyboard MENU/NOCN1 MainDiode MA8047-TX Vibrator Main VOL-SELSony Corporation

KMS-2608/J1N, MDM-7A, NEW specifications

Sony has long been a leader in the realm of electronic innovation, and the introduction of the NEW MDM-7A and KMS-2608/J1N models further solidifies this position. These devices are a testament to Sony's commitment to delivering cutting-edge technology that enhances user experience across various applications.

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