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21

There are 31 types of the test mode. The group can be switched by rotating the  lAMSL  knob. Select the group to be used and press
the  YES  button. After each group is entered, each mode can be switched by rotating the  lAMSL  .
For the selected contents, refer to the “Group” column in the list.
The group S can support all test modes for servicing. Be careful not to select other groups if not necessary.

•

For detailed description of each adjustment mode, refer to Section 5 “Electrical Adjustments”.
For “ERR DP MODE” (C17), refer to the self-diagnosis function of page 2.

•

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. If the items marked (!) are selected especially, the unit could be operated wrongly by
rewriting the contents of non-volatile memory. Be careful of it.

TEMP CHECK

LDPWR CHECK

EF MO CHECK

EF CD CHECK

FBIAS CHECK

ScurveCHECK

VERIFYMODE

DETRK CHECK

TEMP ADJUS

LDPWR ADJUS

EF MO ADJUS

EF CD ADJUS

FBIAS ADJUS

EEP MODE

ERR DP MODE

ADJ CLEAR

AG Set (MO)

AG Set (CD)

Iop Read

Iop Write

JA555 @@@@@@

CPLAY MODE

CREC MODE

C01

C02

C03

C04

C05

C06

C07

C08

C09

C10

C11

C12

C13

C14

C17

C24

C25

C26

C27

C28

C29

C30

C31

Temperature compensation offset check

Laser power check

Traverse (MO) check

Traverse (CD) check

Focus bias check

S curve 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

Error history display, clear

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 writing

Version display of microprocessor

Continuous playback mode

Continuos recording mode

(

×

)

(

×

)

(

×

)

(

×

) (!)

*

C

S

C

S

C

S

C

S

C

S

C

C

C

A

S

A

S

A

S

A

S

A

S

D

S

A

S

A

S

A

S

C

S

A

S

C

S

C

A

S

D

C

A

S

D

(*) Group
C : Check

A : Adjust

S : Service D : Develop

22

1. Entering the continues playback mode

1) Load the disc into the unit. (recordable disc or disc for playback)

The disc is loaded by pushing the tray.

2) Rotate the  lAMSL  knob to display “CPLAY MODE” (C30).
3) Press the  YES  button to change the display to “CPLAY MID”.
4) When access completes, the display changes the display to “C =              AD =       ”.
Note

: The value of the “    ” displayed on the screen indicates error rate and “ADER”.

2. Changing the parts to be played back

1) Press the  YES  button during continuos playback to change the display as shown and move the played back part.

2) When access completes, the display changes to “C =              AD =       ”.
Note

: The value of the “    ” displayed on the screen indicates error rate and “ADER”.

3. Ending the continuos playback mode

1) Press the  MENU/NO  button to change the display to “CPLAY MODE”.
2) Press the A button to eject the disc.
Note1

: The playback start addresses for IN, MID, and OUT are as follows.

IN

: 40h cluster

MID

: 300h cluster

OUT

: 700h cluster

Note 2 : When the  

N

  button is pressed during the continuos playback in order to switch the tracking servo ON and OFF, the message

“SERVO ON” appears without displaying “CPLAY MODE” when the  MENU/NO  button is pressed to end the continuos
playback mode.
Also when the servo is turned off, the servo is turned on automatically, the message “SERVO ON” appears and then the mode
ends afterward.
To change the display “SERVO ON” to the normal “mode” display, press the 

 x 

 button.

"CPLAY MID" 

 → 

 "CPLAY OUT" 

 → 

 "CPLAY IN"

23

1. Entering the continuos recording mode

1) Load the recordable disc to the unit.

The disc is loaded by pushing the tray.

2) Rotate the  lAMSL  knob to display “CREC MODE” (C31).
3) Press the  YES  button to change the display to “CREC MID”.
4) When access completes, the display changes the display to “CREC(              ” and             illuminates.
Note : The value of the “    ” displayed on the screen indicates the address of the recorded position.

2. Changing the parts to be recorded

1) Press the  YES  button during continuos playback to change the display as shown and move the played back part.               disappears

during moving.

2) When access completes, the display changes to “CREC(             ” and             disappears.
Note : The value of the “    ” displayed on the screen indicates the address of the recorded position.

3. Ending the continuos recording mode

1) Press the  MENU/NO  button. The display changes to “CREC MODE” and             disappears.
2) To eject the disc, press the A button.
Note 1 : The playback start addresses for IN, MID, and OUT are as follows.

N

: 40h cluster

MID

: 300h cluster

OUT

: 700h cluster

Note 2 : The  MENU/NO  button can be used to stop recording anytime.
Note 3 : Do not perform continuos recording for long periods of time above 5 minutes.
Note 4 : During continuos recording, be careful not to apply vibration.

This mode reads and writes the contents of the non-volatile memory.
It is not used in servicing. If selecting this mode accidentally, press the  MENU/NO  button immediately to exit it.

Function name

Main contents

N

Sets continuos playback when pressed in the STOP state. When pressed during continuos playback, the tracking
servo turns ON/OFF.  *Note

x

Stops continuos playback and continuous recording

M

The sled moves to the outer circumference only when this is pressed

m

The sled moves to the inner circumstance only when this is pressed

SCROLL

Switches between the pit and groove modes when pressed

PLAY MODE

Switches the spindle servo mode (CLV S 

↔

 CLV A)

DISPLAY/CHAR

Switches the display when pressed

A/OPEN/CLOSE

Removes the disc

REPEAT

Exits test mode

Note : If the continuos playback mode ends with the tracking servo OFF, the tracking servo is automatically turned on.

  When the message “SERVO ON” appears at the end, press the  x  button to returns to the normal “mode” display.

"CREC MID" 

 → 

 "CREC OUT" 

 → 

 "CREC IN"

24

Each time the  DISPLAY/CHAR  button is pressed, the display changes in the following order.

1. MODE display

Displays “TEMP CHECK”, “CPLAY MODE”, etc.

2. Error rate display

Error rates are displayed as follows.

C =              AD =
C = Indicates CI error
AD = Indicates ADER

3. Address display

Addresses are displayed as follows.
(MO: recordable disc, CD: disc for playback only)
Every pressing of the SCROLL button toggles between the groove display
and the pit display

h =              s =               (MO pit and CD)
h =              a =               (MO groove)
h = : Indicates header address
s = : Indicates SUBQ address
a = : Indicates ADIP address

Note:  The display “-” appears when the servo is not locked.
4. Auto gain display (not used in servicing)

The auto gain display is shown as follows.

AG=       /       [

5. Detrack check display (not used in servicing)

The detrack check display is shown as follows.

ADR=

6. IVR display (not used in servicing)

The IVR display is shown as follows.

[       ] [       ] [

Meaning of Other Displays

MODE display

↓

Error rate display

↓

Address display

↓

Auto gain display (not used in servicing)

↓

Detrack check display (not used in servicing)

↓

IVR display (not used in servicing)

↓

Display

H

X

REC

-SYNC

A. SPACE

OVER

B

A-

TRACK

DISC

SLEEP

CLOCK

Contents

MODE display

Off

During continuos playback (CLV: ON)

STOP (CLV:OFF)

Tracking servo OFF

Tracking servo ON

Recording mode OFF

Recording mode OFF

CLV low speed mode

CLV normal mode

ABCD adjustment completed

Tracking offset cancel ON

Tracking offset cancel OFF

Tracking auto gain OK

Focus auto gain OK

Pit

Groove

High reflection

Low reflection

CLV-S

CLV-A

CLV LOCK

CLV UNLOCK