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23
4-5. Selecting the Test Mode
There are 26 types of the test mode. The group can be switched by rotating the
l
AMS
L
knob. All the adjustments and checks for
service can be performed in the test mode of the service group.
There is the Develop group, but it is not used for service. If you enter the group mistakenly, immediately press the MENU/NO button and
exit the group.
Display
AUTO CHECK
Err Display
TEMP ADJUS
LDPWR ADJUS
Iop Write
Iop NV Save
EF MO ADJUS
EF CD ADJUS
FBIAS ADJUS
AG Set (MO)
AG Set (CD)
TEMP CHECK
LDPWR CHECK
EF MO CHECK
EF CD CHECK
FBIAS CHECK
Scurve CHECK
VERIFYMODE
DETRK CHECK
0920 CHECK
Iop Read
Iop Compare
ADJ CLEAR
INFOMATION
CPLAY1MODE
CREC 1MODE
No.
C01
C02
C03
C04
C05
C06
C07
C08
C09
C10
C11
C12
C13
C14
C15
C16
C17
C18
C19
C25
C26
C27
C28
C31
C34
C35
Contents
Automatic self-diagnosis
Error history display, clear
Temperature compensation offset adjustment
Laser power adjustment
IP data writing
Reads the current IOP value with microprocessor and writes it to non-
volatile data
Traverse (MO) adjustment
Traverse (CD) adjustment
Focus bias check
Focus /tracking gain adjustment (MO)
Focus /tracking gain adjustment (CD)
Temperature compensation offset check
Laser power check
Traverse (MO) check
Traverse (CD) check
Focus bias adjustment
S curve check
Non-volatile memory check
Detract check
Outermost circumference check
IOP data display
Comparison to the initial IOP value written in non-volatile data
Initialization of non-volatile memory of adjustment value
Display of microprocessor version, etc.
Continuous playback mode
Continuous recording mode
Mark
×
×
×
×
Group
Chck
Service
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For detailed description of each adjustment mode, refer to Section 5 “Electrical Adjustments”.
For “Err Display” (C02), refer to the self-diagnosis function of page 4.
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If a different adjustment mode has been selected by mistake, press the MENU/NO button to exit from it.
•
The items marked
×
in the mark are not used in servicing, therefore they are not detailed. If select these modes accidentally, press the
MENU/NO button immediately to exit from it. Be careful especially when using the test mode of the Develop group. The machine may
not run correctly.
•
AUTO CHECK, Iop NV Save and Iop Compare cannot be used with the MDM-6J and MBU-5J.