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4-5.
SELECTING THE TEST MODE
There are 31 types of test modes as shown below. The groups can be switched by pessing the
selecting the group to be used, press the
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 S. So be carefully not to enter other groups by mistake.
Display
TEMP CHECK
Temperature compensation offset check
LDPWR CHECK
Laser power check
EF MO CHECK
Traverse (MO) check
EF CD CHECK
Traverse (CD) check
FBIAS CHECK
Focus bias check
Scurve CHECK
S letter check
VERIFYMODE
Non-volatile memory check
DETRK CHECK
Detrack check
TEMP ADJUST
Temperature compensation offset adjustment
LDPWR ADJUST
Laser power adjustment
EF MO ADJUST
Traverse (MO) adjustment
EF CD ADJUST
Traverse (CD) adjustment
FBIAS ADJUST
Focus bias adjustment
EEP MODE
Non-volatile memory control
MANUAL CMD
Command transmission
SVDATA READ
Status display
ERR DP MODE
Error history display, clear
SLED MOVE
Sled check
ACCESS MODE
Access check
0920 CHECK
Outermost circumference check
HEAD ADJUST
Head position check
CPLAY2 MODE
Same functions as CPLAY MODE
CREC2 MODE
Same functions as CREC MODE
ADJ CLEAR
Initialization of non-volatile memory of adjustment value
AG Set (MO)
Auto gain output level adjustment (MO)
AG Set (CD)
Auto gain output level adjustment (CD)
Iop Read
IOP data display
Iop Write
IOP data write
INFORMATION
Microprocessing version display
CPLAY MODE
Continuous playback mode
CREC MODE
Continuous recording mode
• 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
• 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 "R"
overwrite the non-volatile memory and reset it, and as a result, the unit will not operate normally.
button. After setting a certain group, press the
ENTER/YES "R"
Contents
button to release the mode immediately. Be especially careful not to set the modes with (!) as they will
Mark
(X)
(X)
(X)
(X) (!)
(X)
(X)
(X)
(X)
(X)
(X)
(X)
(X)
Group (
)
*
C: Check
S: Service
button to release that mode.
MENU/NO "R"
or
l m
M L
or
l m
M L
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
A: Adjust
D: Develop
button. After
button
27
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