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— 25 —

1

Screw
(M1.7x2)

2

Retainer (gear)

3

Set the shaft of Gear (LA) to be at the
position in the figure.

4

Remove the slider complete assembly
in the direction of arrow with putting
out of two claws.

claw

claw

45°

Slider complete assembly

OK

NG

Take care not to damage
the detective switch.

Part A

Install the part A of lever (head up)
to pass over the slider complete assembly.

— 26 —

1 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 

§EJECT 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 

§EJECT button after pressing the NO button and the rotation of disc is stopped.

2 The erasing-protection tab is not detected in the test mode. Therefore, operating in the recording laser emission mode and pressing the

rREC button, the recorded contents will be erased regardless of the position of the tab. When using a disc that is not to be erased in the
test mode, be careful not to enter the continuous recording mode and traverse adjustment mode.

1. Continuous recording mode (CREC MODE)
2. Traverse adjustment mode (EFBAL ADJUST)
3. Laser power adjustment mode (LDPWR ADJUST)
4. Laser power check mode (LDPWR CHECK)
5. When pressing the 

rREC button.

While pressing the AMS knob, insert the power plug into the power supply inlet, and release the AMS knob.

When the POWER button is pressed, it becomes in the STANDBY mode. Or unplug the power plug from an outlet.

All operations are performed using the AMS knob, YES button, and NO button.
The functions of these buttons are as follows.

Function name

AMS knob

YES button

NO button

Function

Changes parameters and modes

Proceeds onto the next step. Finalizes input.

Returns to previous step. Stops operations.

Thirteen test modes are selected by turning the AMS knob.

Display

TEMP ADJUST

LDPWR ADJUST

LDPWR CHECK

EFBAL ADJUST

FBIAS ADJUST

FBIAS CHECK

CPLAY MODE

CREC MODE

DETRK CHECK

S curve CHECK

EEP MODE

MANUAL CMD

SVDATA READ

Contents

Temperature compensation offset adjustment

Laser power adjustment

Laser power check

Traverse adjustment

Focus bias adjustment

Focus bias check

Continuous playback mode

Continuous recording mode

Detrack check

S curve check 

∗

Non-volatile memory mode 

∗

Manual command transfer mode 

∗

Data reading out mode 

∗

For detailed description of each adjustment mode, refer to “5. Electrical Adjustments”.
If a different adjustment mode has been selected by mistake, press the NO button to exit from this mode.
* The EEP MODE, S curve CHECK, MANUAL CMD and SVDATA READ are not used in servicing. If set accidentally, press the NO button

immediately to exit this mode.

— 27 —

4

4

1. Entering the continuous playback mode

1 Set the disc in the unit. (Whichever recordable discs or discs for playback only are available.)
2 Rotate the AMS knob and display “CPLAY MODE”.
3 Press the YES button to change the display to “CPLAY IN”.
4 When access completes, the display changes to “C1 = 

 AD = 

”.

Note : 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.

 “CPLAY MID” 

n “CPLAY OUT”n “CPLAY IN”

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

2 When access completes, the display changes to “C1 = 

 AD = 

”.

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

3. Ending the continuous playback mode

1 Press the NO button. The display will change to “CPLAY MODE”.
2 Press the §EJECT button to remove the disc.
Note : The playback start addresses for IN, MID, and OUT are as follows. In case you want to display the address of the playback position

on the display, press the DISPLAY button and 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 Rotate the AMS knob and display “CREC MODE”.
3 Press the YES button to change the display to “CREC MID”.
4 When access completes, the display changes to “CREC (

)” and  

  lights up.

Note : 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.

“CPLAY MID” 

n “CPLAY OUT”n “CPLAY IN”

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

  goes off.

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

)” and  

  lights up.

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

3. Ending the continuous recording mode

1 Press the NO button. The display changes to “CREC MODE” and  

  goes off.

2 Press the §EJECT button to remove the disc.
Note 1 : The recording start addresses for IN, MID, and OUT are as follows.

IN

40h cluster

MID

300h cluster

OUT

700h cluster

Note 2 : The NO button can be used to stop recording anytime.
Note 3 : During the test mode, the erasing-protection tab will not be detected. Therefore be careful not to set the continuous recording

mode when a disc not to be erased is set in the unit.

Note 4 : Do not perform continuous recording for long periods of time above 5 minutes.
Note 5 : 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 NO button immediately to exit it.

— 28 —

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.

Turns recording ON/OFF when pressed during continuous playback.

Function

·P

p

)

0

r

SCROLL/

CLOCK SET

DISPLAY

P

CLOCK

TRACK

DISC

DATE

A. SPACE

A – B

Off

Blinking

Contents

Display

Light

During continuous playback

Tracking servo OFF

Recording mode ON

CLV LOCK

Pit

High reflection

CLV-S

ABCD adjustment completed

STOP

Tracking servo ON

Recording mode OFF

CLV UNLOCK

Groove

Low reflection

CLV-A

Focus auto gain successful

Tracking auto gain successful

Focus auto gain successful

Tracking auto gain failed

¢

Note : The erasing-protection tab is not detected during the test mode. Recording will start regardless of the position of the erasing-protec-

tion tab when the 

r REC button is pressed.

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

nError rate displaynAddress displaynAuto gain displaynIVR display

The auto gain display and the IVR display are not used for servicing.
1. MODE display

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

2. Error rate display

Error rates are displayed as follows.
C1 = 

 

AD = 

C1 = : Indicates C1 error
AD = : Indicates ADER

3. Address display

Addresses are displayed as follows. (MO : Recordable disc, CD : Disc for playback only)
h = 

s = 

 (MO pit and CD)

h = 

a = 

 (MO groove)

h = : Header address
s = : SUBQ address
a = : ADIP address
* “_” is displayed when the address cannot be read.

4. Auto gain display

Auto gains are displayed as follows.
AG F = 

T = 

F= Focus auto gain collection value.
T= Tracking auto gain collection value.

Switches between the pit and groove modes when pressed.

Switches the display when pressed.Returns to previous step. Stops operations.