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9

3

7

 three step screws (M3)

8

 service assy

(DBU-3)

1

 two screws

     (+BTTP M2.6)

2

 claw

6

 WALTZ-RF board

5

 flexible board

    (CN003)

4

 flexible flat cable (24 core)

    (CN001)

2

6

 two screws

     (+B 2.6

 

×

 4)

1

 two claws

4

 gear (LD)

5

 belt (LD)

7

 Remove two solders.

8

 LOADING board

9

 motor (L) assy (loading)

(M151)

3

 tray (66)

10

1. While shorting the land A of the figure below and ground,

and pressing the  

. AMS >

  knob, press the [POWER] button

to turn the power on.

2. When enter the panel check mode, fluorescent indicator tube

and LEDs all light up for 5 seconds. Then, the pattern is each
grid is displayed, and it is displayed at the end as “SIRCS
CHECK”.

3. Press the  

H

  key of remote commander to enter the key check

mode and display “KEY CHECK 12”.

(*1)

4. Each button is pressed or each land of the figure below is

shorted, the display number of  “KEY CHECK” decreases.

5. All operations is performed, release the key check mode and

enter the jog check mode, then display “JOG CHECK”.

6. Turn the  

. AMS >

  knob clockwise.

7. Turn the  

. AMS >

  knob counterclockwise and jog check

is OK and display “TEST-END”.

8. Press the [POWER] button to turn the power off and release

the panel check mode.

*1) If press the  

x

  key, it displays “KEY CHECK 19”. However,

this mode is for the model with changer. Therefore, it does not
become OK unless 19 buttons are pressed. If entered to this
mode by mistake, press the [POWER] button to turn the power
off and repeat operation form step 1.

JW851

C816

C811

C812

C827

Q822

Q823

Q824

Q825

R841

R842

JW811

JW812

JW813

JW814

JW815

JW816

JW817

JW819

JW820

JW823

JW824

JW818

JW826

JW827

S861

C801

S842

S851

H

A

X

x

MENU

S841

S843

R852

R853

R854

R844

R845

R851

R843

S855

5

4

1

2

3

.

 AMS >

PUSH ENTER

CN801

1

2

12

13

JW821

JW822

C822

C823

C824

C825

R825

R824

R823

R822

C813

FB801

MAIN BOARD

CN703

B

1

5

GROUND

LAND 

A

LAND 

B

11

While press the [MENU] button and  

. AMS >

  knob, press the

[POWER] button to turn the power on and enter the test mode and
display “DIAG MODE”.

1. Turn the  

. AMS >

  knob to select the command number

(hexadecimal number) (refer to the following table for
command number).

2. Press the  

. AMS >

  knob to execute the selected command

item.

Press the [POWER] button to turn the power off.

Command No.

Command name

Item

12

LD ON/OFF

Turn on/off the laser diode

13

SPIN ON/OFF

Turn on/off the spindle motor

14

FSRV ON/OFF

Turn on/off the focus servo

15

TSRV ON/OFF

Turn on/off the tracking servo

16

CLV ON/OFF

Turn on/off the spindle CLV servo, when both focus servo and tracking servo are on

17

SSRV ON/OFF

Turn on/off the spindle CLV servo, when all servo of focus servo, tracking servo and spindle servo are on

18

ALL SRV ON

Turn on all servo

19

ALL SRV OFF

Turn off all servo

1A

DISC STOP

Stop the disc rotation (useful as overdrived)

24 (*2)

ADJ FCSBIAS

Automatically adjust the focus bias

27 (*2)

FOCUS AGC

Automatically adjust the focus servo gain

31 (*2)

PI/FE OFSET

Automatically adjust the offset signal of PI, PE and TE

45 (*2)

TRACKING AGC

Automatically adjust the focus servo gain

61

DISC DETECT

Judge the disc type (when SA-CD, “SL” or “DL” is displayed)

7C

FJUMP TEST

Focus jump test mode

81

SYSTEM VERSION

Display the version of system microcomputer for 2 seconds

82

I/F VERSION

Display the version of IF microcomputer for 2 seconds

8D

SETUP

initialize (for AEP model)

8F

SETUP

initialize (for except AEP model)

Error rate display (to stop, press the  

x

  button)

92

ERR CHECK

for CD display “92  C1 C2 FF”

for SA-CD display “92  PI1 PO PI2”

93

WATER MARK

WaterMark display

display “93      xxxx” (“xxxx” is value of pspamp)

9D

PLAY&RFD ON

Measuring the jitter (to stop, press the  

x

  button)

display: “9D  xx FF FF” (“xx” is measuring value of jitter)

B0 (*3)

FFFF

The electrical adjustment value clear

B1 (*3)

(Change value)

Writing of the electrical adjustment value

B2 (*3)

(Change value)

Confirm of the electrical adjustment value

*2) Not used in servicing
*3) Only softwere version of the system 1.24 or later

12

CHECK  DISC  LIST
Use the following hybrid disc on this check.
HLXA-509 (Part No. J-6090-090-A) or Super Audio CD HYBRID
DISC (Market disc).

1. Connect the oscilloscope to pin wj of CN702 on the MAIN

board.

2. Insert the test disc HLXA-509 (Part No. J-6090-090-A) or

Super Audio CD HYBRID DISC (Market disc).

3. Confirm the waveform at that time because the disc is

distinguished at chucking moment.

4. Confirm 

∆t of the shape of waves is a specified value.

Specified Value: 7.5 ms to 9.7 ms

(software version of the system 1.24 or later)
6.9 ms to 9.7 ms
(software version of the system less than 1.24)

5. When step 4 is NG, R892 and R893 on the MAIN board are

changed and the waveform is measured again.
In case of the specified value or more: Change R892 and R893
to 110 k

Ω (part No. 1-218-896-11).

In case of the specified value or less: Change R892 and R893
to 130 k

Ω (part No. 1-218-898-11).

6. Eject the disc and press the [POWER] button to turn the power

off.

Adjust it as follows after the optical traverse unit (DBU-3), WALTZ-
RF board, MAIN board, master controller (IC705), SA-CD/CD
decoder (IC706) and EEPROM (IC702) are replaced.

1. ROM VERSION CHECK

2. U-CON CHECK

3. OPTICAL SENSITIVITY CHECK

4. MODE SETTING FOR SHIPPING (perform this mode only

when EEPROM (IC702) is replaced)

Software version of the system is confirmed.
Procedure:

1. While pressing the [MENU] button and  

. AMS >

  jog press

the [POWER] button to turn the power on and enter the test
mode and display “DIAG MODE”.

2.

. AMS >

  jog is turned and “81” is selected.

3.

. AMS >

  jog is pressed and software version of the system

is displayed.

4. “SYS VER 

*.**” is displayed.

5.

. AMS >

  jog is turned and “82” is selected.

6.

. AMS >

  jog is pressed and I/F version is displayed.

7. “I/F VER 

*.**” is displayed.

When the software version of the system 1.24 or later, this checking
must be performed before “3. OPTICAL SENSITIVITY CHECK”
and “4. MODE SETTING FOR SHIPPING”.
Procedure:

1. While pressing the [MENU] button and  

. AMS >

  jog press

the [POWER] button to turn the power on and enter the test
mode and display “DIAG MODE”.

2. Insert the test disc (SATD-S5). (Part No. : J-2501-215-A)
3.

. AMS >

  jog is turned and “B0” is selected.

4.

. AMS >

  jog is pressed and confirm “FFFF” is displayed.

5.

. AMS >

  jog is turned and “B1” is selected. “

6.

. AMS >

  jog is pressed and confirm “

−9” is displayed.

Then the value is changed and the value of four digits is
displayed after “

−0”.

7.

. AMS >

  jog is turned and “B2” is selected.

8.

.  AMS  >

    jog is pressed and confirm the value of four

digits is displayed.At this time, confirm the value displayed at
the end is a specified value.

Specified Value: 08D0 to 04D0

9. Eject the test disc and press the [POWER] button to turn the

power off.

software version of the
system 1.24 or later





software version of the
system less than 1.24





+
–

MAIN board

CN702 pin 

wj

oscilloscope

Waveform

∆t







