Sony MDS-JA333ES Service Manual page 23

4-5. Selecting the Test Mode
There are 26 types of the test mode. The group can be switched by rotating the lAMSL 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 No.
AUTO CHECK C01
Err Display C02
TEMP ADJUS C03
LDPWR ADJUS C04
Iop Write C05
Iop NV Save C06
EF MO ADJUS C07
EF CD ADJUS C08
FBIAS ADJUS C09
AG Set (MO) C10
AG Set (CD) C11
TEMP CHECK C12
LDPWR CHECK C13
EF MO CHECK C14
EF CD CHECK C15
FBIAS CHECK C16
Scurve CHECK C17
VERIFYMODE C18
DETRK CHECK C19
0920 CHECK C25
Iop Read C26
Iop Compare C27
ADJ CLEAR C28
INFOMATION C31
CPLAY1MODE C34
CREC 1MODE C35
• 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.
• 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.
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
Group
Mark
Chck Service
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