4-8. MEANINGS OF OTHER DISPLAYS

Display

 

Contents

 

 

 

When Lit

 

When Off

 

 

 

 

 

 

G

Servo ON

 

Servo OFF

 

 

 

 

X

Tracking servo OFF

 

Tracking servo ON

 

 

 

 

REC

Recording mode ON

 

Recording mode OFF

 

 

 

 

SYNC

CLV low speed mode

 

CLV normal mode

 

 

 

 

L.SYNC

ABCD adjustment completed

 

 

 

 

 

 

OVER

Tracking offset cancel ON

 

Tracking offset cancel OFF

 

 

 

 

B/1

Tracking auto gain OK

 

 

 

 

 

 

A-/REP

Focus auto gain OK

 

 

 

 

 

 

TRACK/(LP) 4/Calendar frame

Pit

 

Groove

 

 

 

 

DISC/LP2

High reflection

 

Low reflection

 

 

 

 

SLEEP/SHUF

CLV S

 

CLV A

 

 

 

 

MONO

CLV LOCK

 

CLV UNLOCK

 

 

 

 

4-9. AUTOMATIC SELF-DIAGNOSIS FUNCTION

This test mode performs CREC and CPLAY automatically for mainly checking the characteristics of the optical pick-up. To perform this test mode, the laser power must first be checked.

Perform AUTO CHECK after the laser power check and Iop check.

Procedure

1.Press the YES button. If “LDPWR ” is displayed, it means that the laser power check has not been performed. In this case, perform the laser power check and Iop compare, and then repeat from step 1.

2.If a disc is in the mechanical deck, it will be ejected forcibly.

“DISC IN” will be displayed in this case. Load a test disc (MDW-74/GA-1) which can be recorded.

3.If a disk is loaded at step 2, the check will start automatically.

4.When “XX CHECK” is displayed, the item corresponding to XX will be performed.

When “06 CHECK” completes, the disc loaded at step 2 will be ejected. “DISC IN” will be displayed. Load the check disc (MD) TDYS-1.

5.When the disc is loaded in step 4, the check will automatically be resumed from “07 CHECK”.

6.After completing to test item 12, check OK or NG will be displayed. If all items are OK, “CHECK ALL OK” will be displayed. If any item is NG, it will be displayed as “NG:xxxx”.

When “CHECK ALL OK” is displayed, it means that the optical pick-up is normal. Check the operations of the other spindle motor, thread motor, etc.

When displayed as “NG:xxxx”, it means that the optical pick-up is faulty. In this case, replace the optical pick-up.

4-10. INFORMATION

Display the software version.

Procedure

1.If displayed as “INFORMATION”, press the YES button.

2.The software version will be displayed.

3.Press the MENW/NO button to end this mode.

4-11. WHEN MEMORY NG IS DISPLAYED

If the nonvolatile memory data is abnormal, “E001”/”MEMORY NG” will be displayed so that the MD deck does not continue operations. In this case, set the test mode promptly and perform the following procedure.

Procedure

1.Set the test mode. (Refer to 4-2.)

2.Normally a message for selecting the test mode will be displayed. However if the nonvolatile memory is abnormal, the following will be displayed. “INIT EEP?”

3.Press the STOP button and EJECT button together.

4.Rotate the AMS knob and select MDM-7A.

5.Press the AMS knob. If the nonvolatile memory is successfully overwritten, the normal test mode will be set and a message to select the test mode will be displayed.

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Sony NEW, MDM-7A Meanings of Other Displays, Automatic SELF-DIAGNOSIS Function, Information, When Memory NG is Displayed
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KMS-2608/J1N, MDM-7A, NEW specifications

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