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– 21 –

There are altogether 26 test modes, shown in the following table. Press the 

[VOLUME+]

 button to the mode below the current mode in the

table while press the 

[VOLUME–]

 button to the mode above. Each time the  

^ (CD)  button is pressed, the display changes in the

following order;
“TEMP CHECK” 

n “TEMP ADJUST” n “SLED MOVE” n “CPLAY 2 MODE” n “TEMP CHECK”…

Display

TEMP CHECK

LDPWR CHECK

EF MO CHECK

EF CD CHECK

FBIAS CHECK

CPLAY MODE

CREC MODE

Scurve CHECK

VERIFY MODE

DETRK CHECK

TEMP ADJUST

LDPWR ADJUST

EF MO ADJUST

EF CD ADJUST

FBIAS ADJUST

EEP MODE

MANUAL CMD

SVDATA READ

ERR DP MODE

SLED MOVE

ACCESS MODE

0920 CHECK

WRITE sure?

HEAD ADJUST

CPLAY2 MODE

CREC2 MODE

Contents

Temperature compensation offset check

Laser power check

Traverse (MO) check

Traverse (CD) check

Focus bias check

Continuous playback mode

Continuous recording mode

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

Nonvolatile memory control

Command transfer

Status display

Error history display, clear

Sled check

Access check

Outermost circumference check

Non-volatile memory Initialize

Head position check

Continuous playback mode

Continuous recording mode

Mark

(X)

(X)

(X)

(X) (!)

(X)

(X)

(X)

(X)

(X)

(X) (!)

(X)

(X)

(X)

• For details of each adjustment mode, refer to the items in “6. Electrical Adjustments”. For details of “ERR DP MODE”, refer to the self-

diagnosis function on page 2.

• If other modes are set accidentally, press the  

^ (CD)  button to exit that mode.

• As items marked (

X

) in the “Mark” column are not used during servicing, they are not described here. If these modes are set acciden-

tally, press the  

^ (CD)  button to exit the mode. Be especially careful with items marked (!) as they will overwrite the non-volatile

memory, and as a result, the unit will not operate normally.

1. Entering the continuous playback mode

1 Set the disc in the unit. (Recordable discs or discs for playback only.)
2 Press the 

[VOLUME+/–]

 button and display “CPLAY MODE”.

3 Press the  p (CD)  button to change the display to “CPLAY MID”.

4 When access completes, the display changes to “C = 

 AD = 

”.

The numbers “ ” displayed indicate the error rates and “ADER”.

2. Changing the part to be played back

1 When the  p (CD)  button is pressed during continuous playback, the display changes as below, and the played back part can be

changed.

2 When access completes, the display changes to “C = 

 AD = 

”.

The numbers “ ” displayed indicate the error rate and “ADER”.

“CPLAY MID” 

n “CPLAY OUT” n “CPLAY IN”  

– 22 –

Contents

Sets continuous playback when pressed in the STOP state. Turns ON/OFF the tracking servo when pressed

during continuous playback.

Stops the continuous playback and recording.

Moves the sled to the external circumference only while the button is pressed.

Moves the sled to the internal circumference only while the button is pressed.

Switches between pit and groove when pressed.

Switches the displayed contents when pressed.

Ejects the disc.

Function

(P (MD)

p (MD)
) +
= 0
CD-MD SYNC

1/u
6 (MD)

“CPLAY MID” 

n “CPLAY OUT” n “CPLAY IN”  

3. Ending the continuous playback mode

1 Press the  ^ (CD)  button. The display changes to “CPLAY MODE”.

2 Press the  6 (MD)  button to remove the disc.

 The playback start addresses for IN, MID, and OUT are as follows. To display the playback position address on the display, press  the  

1/u

button to display “CPLAY (

)”.

IN:

40h cluster

MID:

300h cluster

OUT: 700h cluster

1. Entering the continuous recording mode

1 Set a recordable disc in the unit. (Refer to Note 3.)
2 Press the 

[VOLUME+/–]

 button and display “CREC MODE”.

3 Press the  p (CD)  button to change the display to “CREC MID”.

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

)” and the  

  display lights up.

: The numbers “ ” displayed indicate the recording position address.

2. Changing the part to be recorded

1 When the  p (CD)  button is pressed during continuous recording, the display changes as below and the recorded part can be

changed.  The  

  display is off while changing.

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

)” and the  

  display lights up.

: The numbers “ ” displayed indicate the recording position address.

3. Ending the continuous recording mode

1 Press the  ^ (CD)  button. The display changes to “CREC MODE”, and the  

  goes off.

2 Press the  6 (MD)  button to remove the disc.

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

40h cluster

MID:

300h cluster

OUT: 700h cluster

The  

^ (CD)  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.

This mode reads and writes the contents of the non-volatile memory.
It is not used in servicing. If set accidentally, press the  

^ (CD)  button immediately to exit it.

– 23 –

Contents

When Lit

When Off

Recording mode ON

Recording mode OFF

ABCD adjustment completed

Focus auto gain OK

Pit

Groove

High reflection rate

Low reflection

CLV-S

CLV-A

CLV LOCK

CLV UNLOCK

The display changes according to the following sequence each time the  

1/u  button is pressed.

“TEMP ADJUST” and “CPLAYMODE” are displayed.

The error rate is displayed as follows.

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

The address is displayed as follows. (MO: Recordable disc, CD: Disc for palyback only)
When the 

[CD-MD SYNC]

 button is pressed, the display will switch between groove

and pit.

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.

Displayed as “–” when servo is operated.

The auto gain is displayed as follows.

AG =     /     [   ]

The detrack is displayed as follows.

ADR =             

IVR is displayed as follows.

[   ][   ][  

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

REC

ATT

SHUFFLE

TRACK

DISC

LEVEL-SYNC

SYNC

– 24 –

This unit is provided with an aging mode.
In this mode, MD and CD operations are performed alternately according to the following sequence.
Aging will be carried out continuously unless an error occurs.
If an error occurs, the status and number of cycles are displayed alternately, and operations stop. (Refer to Table 1.)

NO

NO

YES

YES

OK?

NO

OK?

NO

NO

YES

OK?

OK?

NO

OK?

NO

OK?

NO

OK?

NO

YES

YES

YES

YES

YES

OK

YES

NG

Start

Turn ON Power using function MD

MD TOC READ

Cannot read

Message 

6

Can read

MD all erase

Above 20

MD last track

Less than 20

Blank disc

Message 

1

CD function is set and CD TOC is read

CD TOC OK?

Message 

7

CD synchro standby

Message 

2

 or 

8

CD last track search pause state

Message 

9

CD synchro starts

Message 

3

 or 

0

Synchro ends?

MD function is set

Playing CD?

CD tray opens

Message 

!¡

Message 

!º

CD tray closes

Message 

!™

MD last track (for 3 sec.) play

Message 

4

Power goes off and MD TOC is written

Aging cycle number is displayed

Power turns ON and MD TOC is read

Message 

5

 or Message 

6