Sony MDS-JE640 specifications Selecting the Test Mode, Display Details Mark Group

4-5. SELECTING THE TEST MODE

There are 25 types of test modes as shown below. The groups can be switched by rotating the AMS knob. After selecting the group to be used, press the YES button. After setting a certain group, rotating the AMS knob switches between these modes.

Refer to “Group” in the table for details selected.

All adjustments and checks during servicing can be performed in the test mode in the Service group.

NOTE: Do not use the test mode in the [Develop] group. If used, the unit may not operate normally.

If the [Develop] group is set accidentally, press the MENU/NO button immediately to exit the [Develop] group.

Display	No.	Details	Mark	Group
				Service
			Check
AUTO CHECK	C01	Automatic self-diagnosis
Err Display	C02	Error history display, clear
TEMP ADJUS	C03	Temperature compensation offset adjustment
LDPWR ADJUS	C04	Laser power adjustment
Iop Write	C05	Iop data writing
Iop NV Save	C06	Writes current Iop value in read nonvolatile memory using microprocessor
EF MO ADJUS	C07	Traverse (MO) adjustment
EF CD ADJUS	C08	Traverse (CD) adjustment
FBIAS ADJUS	C09	Focus bias adjustment
AG Set (MO)	C10	Focus, tracking gain adjustment (MO)
AG Set (CD)	C11	Focus, tracking gain adjustment (CD)
TEMP CHECK	C12	Temperature compensation offset check
LDPWR CHECK	C13	Laser power check
EF MO CHECK	C14	Traverse (MO) check
EF CD CHECK	C15	Traverse (CD) check
FBIAS CHECK	C16	Focus bias check
ScurveCHECK	C17	S-curve check
VERIFYMODE	C18	Nonvolatile memory check
DETRK CHECK	C19	Detrack check
0920 CHECK	C25	Most circumference check
Iop Read	C26	Iop data display
Iop Compare	C27	Comparison with initial Iop value written in nonvolatile memory
ADJ CLEAR	C28	Initialization of nonvolatile memory for adjustment values
INFORMATION	C31	Display of microprocessor version, etc.
CPLAY1MODE	C34	Continuous playback mode
CREC 1MODE	C35	Continuous recording mode

•For details of each adjustment mode, refer to “5. Electrical Adjustments”. For details of “Err Display”, refer to “Self-Diagnosis Function” on page 2.

•If a different mode has been selected by mistake, press the MENU/NO button to exit that mode.

•Modes with (X) in the Mark column are not used for servicing and therefore are not described in detail. If these modes are set acciden- tally, press the MENU/NO button to exit the mode immediately.

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