Sony MDS-JE640 Meanings of Other Displays, Automatic SELF-DIAGNOSIS Function, Information

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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