Sony MDS-NT1 service manual Selecting the Test Mode, Check

MDS-NT1

4-5. SELECTING THE TEST MODE

There are 26 types of test modes as shown below. The groups can be switched by clicking the [JOG UP] or [JOG DOWN]. After selecting the group to be used, click the [ENTER/YES]. After setting a certain group, click the [JOG UP] or [JOG DOWN] switches between these modes.

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

All items used for servicing can be treated using group [Service]. So be carefully not to enter other groups by mistake.

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, click the [MENU/NO] 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 ADJUST	C03	Temperature compensation offset adjustment
LDPWR ADJUST	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 ADJUST	C07	Traverse (MO) adjustment
EF CD ADJUST	C08	Traverse (CD) adjustment
FBIAS ADJUST	C09	Focus bias adjustment
AG Set (MO)	C10	Auto gain output level adjustment (MO)
AG Set (CD)	C11	Auto gain output level 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.
CPLAY2MODE	C36	Continuous playback mode
CREC 2MODE	C37	Continuous recording mode

•For details of each adjustment mode, refer to “SECTION 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, click the [MENU/NO] to release that mode.

•Modes with (⋅ ) in the Mark column are not used for servicing and therefore are not described in detail. If these modes are set acciden- tally, click the [MENU/NO] to release the mode immediately.

21