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– 13 –

1

 

Three screws

        (BTP2.6x6)

2

 

Base unit (MBU-5A)

3

 

Remove the solder (Five portion)

4

 

Screw (M1.7x4)

6

 

Flexible board

               (CN101)

7

 

BD board

5

 

Flexible board

               (CN104)

5

 

Two screws (BTP2.6x6)

6

 

SW board

4

 

Loading motor (M103)

3

 

Two screws

    (PWH1.7x3)

1

 

Screw (PTPWH M2.6x6)

2

 

Gear B

– 14 –

• 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  MENU/NO  button and the rotation of disc is stopped.

• Continuous recording mode (CREC MODE)
• Laser power check mode (LDPWR CHECK)
• Laser power adjustment mode (LDPWR ADJUST)
• Traverse (MO) check (EF MO CHECK)
• Traverse (MO) adjustment (EF MO ADJUST)
• When pressing the  

rREC  button.

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

p  button, connect the power plug to an outlet, and release the  AMS  knob and  p  button.

When the test mode is set, “[Check]” will be displayed. Rotating the  AMS  knob switches between the following four groups;
···

Nn Check Nn Adjust Nn Service Nn Develop Nn ···.

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” will be displayed. By setting the test mode using this method, only the “Check”
group of method 1 can be executed.

Press the  REPEAT  button. The disc is ejected when loaded, and “Standby” display blinks, and the STANDBY state is set.

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

Function name

AMS knob

YES button

MENU/NO button

Function

Changes parameters and modes

Proceeds onto the next step. Finalizes input.

Returns to previous step. Stops operations.

– 15 –

There are 24 types of test modes as shown below. The groups can be switched by rotating the  AMS  knob. After selecting the group to be
used, press the  YES  button. After setting a certain group, rotating the  AMS  knob switches between these modes.
Refer to “Group” in the table for details selected.
All items used for servicing can be treated using group S. So be carefully not to enter other groups by mistake.

Display

TEMP CHECK

LDPWR CHECK

EF MO CHECK

EF CD CHECK

FBIAS CHECK

S curve CHECK

VERIFY MODE

DETRK CHECK

TEMP ADJUST

LDPWR ADJUST

EF MO ADJUST

EF CD ADJUST

FBIAS ADJUST

EEP MODE

Impossible

ERR DP MODE

ADJ CLEAR

AG Set (MO)

AG Set (CD)

Iop Read

Iop Write

S40 @@.@@

CPLAY MODE

CREC MODE

Contents

Temperature compensation offset check

Laser power check

Traverse (MO) check

Traverse (CD) check

Focus bias check

S letter 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

No function

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 write

Microprocessing version display

Continuous play mode

Continuous recording mode

Mark

(

X

)

(

X

)

(

X

)

(X

) (!)

(

X

)

Group (

*

)

C

S

C

S

C

S

C

S

C

S

C

C

C

A

S

A

S

A

S

A

S

A

S

D

D

S

A

S

A

S

A

S

C

S

A

S

C

S

C

A

S

D

C

A

S

D

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

For details of “ERR DP MODE”, refer to “Self-Diagnosis Function” on page 2.

• If a different mode has been selected by mistake, press the  MENU/NO  button to exit that mode.
• Modes with (

X

) in the Mark column are not used for servicing and therefore are not described in detail. If these modes are set accidentally,

press the  MENU/NO  button to exit the mode immediately. Be especially careful not to set the modes with (!) as they will overwrite the
non-volatile memory and reset it, and as a result, the unit will not operate normally.

Group (

*

)

C: Check
S: Service

A: Adjust
D: Develop

– 16 –

“CPLAY MID” 

n “CPLAY OUT” n “CPLAY IN”  

“CPLAY MID” 

n “CPLAY OUT” n “CPLAY IN”  

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

 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.

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

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

 AD = 

”.

Note : 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 “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

40h cluster

MID 300h cluster
OUT 700h cluster

1. Entering the continuous recording mode

1 Set a recordable disc in the unit.
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.

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  MENU/NO  button. The display changes to “CREC MODE” and  

  goes off.

2 Press the  §  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  MENU/NO  button can be used to stop recording anytime.
Note 3 : Do not perform continuous recording for long periods of time above 5 minutes.
Note 4 : 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  MENU/NO  button immediately to exit it.