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17

• As loading related operations will be performed regardless of the test mode operations being performed, be sure to check that the disc

is stopped before setting and removing it.
Even if the

Z

button is pressed while the disc is rotating during continuous playback, continuous recording, etc., the disc will not stop

rotating.
Therefore, it will be ejected while rotating.
Be sure to press the

Z

button after pressing the 

[MENU/NO]

 button and the rotation of disc is stopped.

• Continuous recording mode (CREC 1MODE)
• Laser power check mode (LDPWR CHECK)
• Laser power adjustment mode (LDPWR ADJUST)
• Comparison with initial Iop value written in nonvolatile memory (Iop Compare)
• Write current Iop value in read nonvolatile memory using microprocessor (Iop NV Save)
• Traverse (MO) check (EF MO CHECK)
• Traverse (MO) adjustment (EF MO ADJUST)
• When pressing the

z

button.

The following are two methods of entering the test mode.
Procedure 1: While pressing the 

[       AMS       ]

 knob and

x

button simultaneously, connect the power plug to the outlet, and release

the 

[       AMS       ]

 knob and

x

button.

When the test mode is set, “[Check]” will be displayed. Turning the 

[       AMS       ]

 knob between the following three

groups; ···Tt [Check] Tt [Service] Tt [Develop] Tt ···.

Procedure 2: While pressing the 

[       AMS       ]

 knob, connect the power plug to the outlet, and release the 

[       AMS       ]

 knob.

When the test mode is set, “TEMP CHECK” (C12) will be displayed. By setting the test mode using this method, only the
“Check” group of procedure1 can be executed.

Do not use the test mode in the [Develop] group.
If used, the unit may not operate normally.
If the [Develop] group is set accidentally, press the 

[MENU/NO]

 button immediately to release the [Develop] group.

Press the

I/1

button. The unit sets into the STANDBY state, and the test mode ends.

All operations are performed using the 

[       AMS       ]

 knob, 

[YES]

 button, and [MENU/NO] button.

The functions of knob and buttons are as follows.

Function name

Function

[       AMS       ]

 knob

Changes parameters and modes

[YES]

 button

Proceeds onto the next step. Finalizes input

[MENU/NO]

 button

Returns to previous step. Stops operations

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18

There are 26 types of test modes as shown below. The groups can be switched by turning the 

[       AMS       ]

 knob. After selecting the

group to be used, press the 

[YES]

 button. After setting a certain group, turning the 

[       AMS       ]

 knob switches modes shown below.

Refer to “Group” in the table for details can be selected.
All items used for servicing can be treated using group [Service]. So be carefully not to enter other groups by mistake.

Do not use the test mode in the [Develop] group.
If used, the unit may not operate normally.
If the [Develop] group is set accidentally, press the

 [MENU/NO] 

button immediately to exit the [Develop] group.

• For details of each adjustment mode, refer to “5. Electrical Adjustments”.

For details of “Err Display”, refer to “Self-Diagnosis Function” on page 2.

• If a different mode has been selected by mistake, press the

 [MENU/NO] 

button to release that mode.

• Modes with (

×

) 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] 

button to release the mode immediately.

Display

AUTO CHECK

Err Display

TEMP ADJUST

LDPWR ADJUST

Iop Write

Iop NV Save

EF MO ADJUST

EF CD ADJUST

FBIAS ADJUST

AG Set (MO)

AG Set (CD)

TEMP CHECK

LDPWR CHECK

EF MO CHECK

EF CD CHECK

FBIAS CHECK

ScurveCHECK

VERIFYMODE

DETRK CHECK

0920 CHECK

Iop Read

Iop Compare

ADJ CLEAR

INFORMATION

CPLAY1MODE

CREC 1MODE

Details

Automatic self-diagnosis

Error history display, clear

Temperature compensation offset adjustment

Laser power adjustment

Iop data writing

Writes current Iop value in read nonvolatile memory using microprocessor

Traverse (MO) adjustment

Traverse (CD) adjustment

Focus bias adjustment

Auto gain output level adjustment (MO)

Auto gain output level adjustment (CD)

Temperature compensation offset check

Laser power check

Traverse (MO) check

Traverse (CD) check

Focus bias check

S-curve check

Nonvolatile memory check

Detrack check

Most circumference check

Iop data display

Comparison with initial Iop value written in nonvolatile memory

Initialization of nonvolatile memory for adjustment values

Display of microprocessor version, etc.

Continuous playback mode

Continuous recording mode

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

Mark

Group

Check

Service

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19

1. Entering the continuous playback mode
(1)

Set the disc in the unit. (Whichever recordable discs or discs for playback only are available)

(2)

Turn the 

[       AMS       ]

 knob to display “CPLAY1MODE” (C34).

(3)

Press the 

[YES]

 button to change the display to “CPLAY1MID”.

(4)

When access completes, the display changes to “C = 

 AD = 

)”.

 The numbers “ ” displayed show you error rates and ADER.

2. Changing the parts to be played back
(1)

Press the 

[YES]

 button during continuous playback to change the display as below.

When pressed another time, the parts to be played back can be moved.

(2)

When access completes, the display changes to “C = 

 AD = 

)”.

 The numbers “ ” displayed show you error rates and ADER.

3. Ending the continuous playback mode
(1)

Press the 

[MENU/NO]

 button. The display will change to “CPLAY1MODE” (C34).

(2)

Press the

Z

button and take out the disc.

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

IN

: 40h cluster

MID : 300h cluster
OUT : 700h cluster

1. Entering the continuous recording mode
(1)

Set a recordable disc in the unit.

(2)

Turn the 

[       AMS       ]

 knob to display “CREC 1MODE” (C35).

(3)

Press the 

[YES]

 button to change the display to “CREC 1MID”.

(4)

When access completes, the display changes to “CREC 1(

)” and “ 

” lights up.

 The numbers “ ” displayed shows you the recording position addresses.

2. Changing the parts to be recorded
(1)

When the 

[YES]

 button is pressed during continuous recording, the display changes as below.

When pressed another time, the parts to be recorded can be changed. “ 

 ” goes off.

(2)

When access completes, the display changes to “CREC 1(

)” and “ 

 ” lights up.

 The numbers “ ” displayed shows you the recording position addresses.

3. Ending the continuous recording mode
(1)

Press the 

[MENU/NO]

 button. The display changes to “CREC 1MODE” (C35) and “

”  goes off.

(2)

Press the

Z

button and take out the disc.

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

IN

: 40h cluster

MID : 300h cluster
OUT : 700h cluster

 The

 [MENU/NO] 

button can be used to stop recording anytime.

 Do not perform continuous recording for long periods of time above 5 minutes.

 During continuous recording, be careful not to apply vibration.

Function

u

x

M

m

REC MODE

PLAY MODE

LEVEL/DISPLAY/CHAR

Z

I/1

“CPLAY1MID” t “CPLAY1OUT” t “CPLAY1IN”  

“CREC 1MID” t “CREC 1OUT” t “CREC 1IN”  

Contents

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

Stops continuous playback and continuous recording

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

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

Switches between the pit and groove modes when pressed

Switches the spindle servo mode (CLV S y CLV A)

Switches the displayed contents each time the button is pressed

Ejects the disc

Releases the test mode

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Contents

Each time the 

[LEVEL/DISPLAY/CHAR]

 button is pressed, the display changes in the following order.

When CPLAY or CREC are started, the display will forcibly be switched to the error rate display as the initial mode.

1. Mode display
Displays “TEMP ADJUST” (C03), “CPLAY1MODE” (C34), etc.

2. Error rate display
Displays the error rate in the following way.

C =  

 AD = 

)

C = : Indicates the C1 error.
AD = : Indicates ADER.

3. Address display
The address is displayed as follows. (MO: recordable disc, CD: playback only disc)
h =  

 s = 

 (MO pit and CD)

h =  

 a = 

 (MO groove)

h = : Indicates the header address.
s = : Indicates the SUBQ address.
a = : Indicates the ADIP address.

 “–” is displayed when the address cannot be read.

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)

C1 error and jitter display 

(Not used in servicing)

AD error and jitter display 

(Not used in servicing)

Servo OFF

Tracking servo ON

Recording mode OFF

CLV normal mode

Tracking offset cancel OFF

Groove

Low reflection

CLV A

CLV UNLOCK

When Off

Display

When Lit

Servo ON

Tracking servo OFF

Recording mode ON

CLV low speed mode

ABCD adjustment completed

Tracking offset cancel ON

Tracking auto gain OK

Focus auto gain OK

Pit

High reflection

CLV S

CLV LOCK

N

X

SYNC

L. SYNC

OVER

B/1

A-/REF

TRACK/LP4

DISC/LP2

SHUF/SLEEP

MONO