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19
Display
MD TEMP CHECK
MD LDPWR CHECK
MD EF MO CHECK
MD EF CD CHECK
MD FBIAS CHECK
MD S curve CHECK
MD VERIFY MODE
MD DETRK CHECK
MD TEMP ADJUST
MD LDPWR ADJUST
MD EF MO ADJUST
MD EF CD ADJUST
MD FBIAS ADJUST
MD EEP MODE
MD MANUAL CMD
MD SVDATA READ
MD ERR DP MODE
MD SLED MOVE
MD ACCESS MODE
MD 0920 CHECK
MD HEAD ADJUST
MD CPLAY2 MODE
MD CREC2 MODE
MD ADJ CLEAR
MD AG Set (MO)
MD AG Set (CD)
MD Iop Read
MD Iop Write
MD INFORMATION
MD CPLAY MODE
MD CREC MODE
Contents
Temperature compensation offset check
Laser power check
Traverse (MO) check
Traverse (CD) check
Focus bias check
S letter check
Non-volatile memory check
Detrack check
Temperature compensation offset adjustment
Laser power adjustment
Traverse (MO) adjustment
Traverse (CD) adjustment
Focus bias adjustment
Non-volatile memory control
Command transmission
Status display
Error history display, clear
Sled check
Access check
Outermost circumference check
Head position check
Same functions as CPLAY MODE
Same functions as CREC MODE
Initialization of non-volatile memory of adjustment value
Auto gain output level adjustment (MO)
Auto gain output level adjustment (CD)
IOP data display
IOP data write
Microprocessing version display
Continuous play mode
Continuous recording mode
Mark
(
X
)
(
X
)
(
X
)
(X
) (!)
(
X
)
(
X
)
(X
)
(
X
)
(
X
)
(X
)
(
X
)
(
X
)
Group (
*
)
C
S
C
S
C
S
C
S
C
S
C
C
C
A
S
A
S
A
S
A
S
A
S
D
D
D
S
D
D
D
D
D
D
A
S
A
S
A
S
C
S
A
S
C
S
C
A
S
D
C
A
S
D
4-5. SELECTING THE TEST MODE
There are 31 types of test modes as shown below. The groups can be switched by rotating the l L knob (MD). After selecting the
group to be used, press the ENTER/YES button (MD). After setting a certain group, rotating the l L knob (MD) switches between
these modes.
Refer to “Group” in the table for details selected.
All items used for servicing can be treated using group S. So be carefully not to enter other groups by mistake.
group to be used, press the ENTER/YES button (MD). After setting a certain group, rotating the l L knob (MD) switches between
these modes.
Refer to “Group” in the table for details selected.
All items used for servicing can be treated using group S. So be carefully not to enter other groups by mistake.
• For details of each adjustment mode, refer to “5. Electrical Adjustments”.
For details of “ERR DP MODE”, refer to “Self-Diagnosis Function” on page 2.
• If a different mode has been selected by mistake, press the MENU/NO button (MD) to exit that mode.
• Modes with (
• Modes with (
X
) in the Mark column are not used for servicing and therefore are not described in detail. If these modes are set accidentally,
press the MENU/NO button (MD) to exit the mode immediately. Be especially careful not to set the modes with (!) as they will overwrite
the non-volatile memory and reset it, and as a result, the unit will not operate normally.
the non-volatile memory and reset it, and as a result, the unit will not operate normally.
Group (
*
)
C: Check
S: Service
S: Service
A: Adjust
D: Develop
D: Develop
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