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13

1

two claws

1

two claws

S002

S001

cover (CAM)

2

Up the SWITCH board in the
direction of arrow 

A

.

Note: Take care not to break the shaft of 

the switch (S001, S002) when raising 
the SWITCH board.

A

C

B

4

limiter (L)

3

screw
(BVTT3 

×

 6)

5

screw
(BVTT3 

×

 6)

6

limiter (R)

7

Insert a taper driver into the cover (CAM), 
and rotate in the arrow 

B

 direction to raise 

the base unit (DVBU4B) in the arrow 

C

 direction.

(Chuck release state)

8

yoke bracket

0

roller (L)

9

base unit (DVBU4B) 

chassis (outseat)

14

Procedure:
1. Press the 

[POWER]

 button while shorting the TP (TEST

MODE) on the DISPLAY board, and turn on the power so that
the following operations will be executed automatically.

1

Grid of all segments lights up sequentially starting from 1G
to 16G.

2

 The vertical line (total 5 lines) of all grids lights up sequen-

tially in the range of 3G to 16 G starting from the left.

3

 The horizontal line of (total 7 lines) of all grids lights up

sequentially in the range of 3G to 16G starting from the top.

4

 Grids from 5G to 6G go off.

2. With the machine in the status that is set in step 1-4, press

any on the remote commander. The grids 1G and 2G go off
and then the machine enters the key check standby state. (When
the 

[OPEN/CLOSE]

 key or the 

[  ]

 key is pressed, the recep-

tion check is canceled.)

3. After the key check is completed, turn JOG clockwise to turn

on the calendar segments sequentially. When the segment “20”
is confirmed, turn JOG counter-clockwise that turns off the
calendar segment. When the segment “1” is confirmed, this is
the end of check.

4. After all the checks are completed, confirm to see that the dis-

play “!%%TEST-END!!%” appears. The message indicates
that the check is ended normally.

5. Press the 

[POWER]

 button to turn off the main power and

disconnect the power plug from the wall outlet.

x

IC1002

IC1001

R1081

C1080

TP (TEST MODE)

15

To release the test mode, turn the 

[POWER]

 switch off.

To select and enter the “TEST MODE Menu”, operate as follows.
1. Rotate the 

[        AMS        ]

 dial to select the menu, and press

the 

[        AMS        ]

 dial to enter.

2. The test is switched on or off alternately each time the

[        AMS        ]

 dial is pressed.

3. To return to the previous step, rotate the 

[        AMS        ]

 dial

to select the desired item, and press the 

[        AMS        ]

 dial

to enter.

The contents of test mode are as follows.

Wrong operation in the test mode causes a trouble, thus requiring extreme care.

LINE command (1X): Use mainly for a manufacturing line.

No.

Name

Description

Remarks

05

DSP MON1

XUGF, XPCK, C2PO outputted from IC509 (CD DSP)

Not used for the servicing

06

DSP MON2

MNT0, MNT1, MNT2, MNT3 outputted from IC509 (CD DSP)

Not used for the servicing

07

DSP MON3

RFCK, XPCK, XROF, GTOP outputted from IC509 (CD DSP)

Electrical measurement,
CD CLV jitter measurement

STANDARD command (1X): Use when the servo is applied by manual operation.

No.

Name

Description

Remarks

12

LD ON/OFF

The laser diode is turned on or off

On or off are switched alternately

13

SPIN ON/OFF

The spindle motor is rotated with the regulated voltage

On or off are switched alternately

14

FSRV ON/OFF

The focus servo is turned on or off

On or off are switched alternately

15

TSRV ON/OFF

The tracking servo is turned on or off

On or off are switched alternately

16

CLV ON/OFF

The spindle SLV servo is turned on or off

On or off are switched alternately

Focus and tracking servos must be already turned on

17

SSRV ON/OFF

The sled servo is turned on or off

On or off are switched alternately

Focus, tracking and spindle servos must be already turned on

18

ALL SRV ON

All servos are turned on

19

ALL SRV OFF

All servos are turned off

Stop command in the test mode

This set automatically executes self-diagnosis and various checks
by entering the test mode.

 This set automatically makes various adjustments according to the

type of disc, thereby not requiring adjustment of the set when parts
were replaced. However, be sure to execute 4-1. IC AND FLUO-
RESCENT DISPLAY TUBE CHECK, 4-2. AUTO CHECK and 4-
7. WAVEFORMS CHECK.

Various checks of this set require the following discs.

Model

Type 

*

1

Category

Application

MODEL
SATD-S5

12 cm disc

Adjusted value check,

(J-2501-215-A) SL

Reference disc

Operation check,

SATD-S4

Optical waveform check

(J-2501-184-A)

Not specified

DL

12 cm disc

Operation check

PATD-012

Adjusted value check,

(4-225-203-01)

CD

12 cm disc

Operation check,

YEDS-18

Reference disc

Optical waveform check

(3-702-101-01)

Not specified

HYBRID 12 cm disc

Operation check

*1 SL: Single Layer

DL: Dual Layer

Turn the 

[POWER]

 switch on while pressing the 

[        AMS        ]

dial and the 

[TIME/TEXT]

 button. Release the 

[TIME/TEXT]

 button

and the 

[        AMS        ]

 dial in this order when “TEST MODE

Menu” is displayed on the fluorescent display tube. (If the

[        AMS         ]

 dial is released first, the test mode becomes active

but “TEST MODE Menu” is not displayed)

l

L

l

L

l

L

l

L

l

L

l

L

l

L

l

L

16

FOCUS command (2X): Focus related. (All servos must be already turned on (except command 21))

No.

Name

Description

Remarks

21

FSRCH ON/OFF

The continuous vertical motion of the optical pick-up lens is turned on or

Avoid a long-time use

off

22

F-BIAS UP

Increase focus bias

Focus bias value

23

F-BIAS DOWN

Decrease focus bias

Focus bias value

24

ADJ FCSBIAS

The focus bias is adjusted automatically
Both + and - directions are searched to search for best jitter point

25

FGAIN UP/DW

The focus servo gain is switched between normal and down

Normal or down are switched alternately

26

FJMP UP/DWN

Focus jump is executed

Valid only for DL

UP: layer 0

t1, DOWN: layer 1t0

27

FOCUS AGC

The focus servo gain is adjusted automatically

28

DISP FBdata

The focus bias adjusted value is displayed

Hexadecimal display 9 bit data

On or off and up or down are switched alternately

OFFSET (PI, FE, TE) command (3X): Adjusts the offset of PI, FE and TE signals.

No.

Name

Description

Remarks

31

PI/FE OFSET

Adjusts the offset of PI, FE and TE signals

TE offset adjustment is executed for the CD

This adjustment must be executed after 61 DISC DETECT

only

TRACKING command (4X): Tracking servo related.

No.

Name

Description

Remarks

41

TGAIN NM/UP

The tracking servo gain is switched between normal and up

Normal or up are switched alternately

44

ADJ TRK DSP

The traverse AGC and E-F balance adjustment is performed

45

TRACKING AGC

The tracking servo gain is adjusted automatically

SEARCH command (5X): Track search related. (Nos. 51 through 53 are not used for the servicing.)

No.

Name

Description

Remarks

51

1-TRCK JUMP

One-track jump is performed

52

M-TRCK MOVE

M-track movement is performed

53

FINE SEARCH

Fine search is performed

58

CDM Check

Measurement of table rotation hours, tray open/close hours and panel door
open close hours

59

Table Init

Initializes the table.

After this command, the [OPEN/CLOSE]
key is enabled.

DISC DETECT command (6X): Disc type check related.

No.

Name

Description

Remarks

61

DISC DETECT

Disc type check is executed

Refer to how to apply servo by manual

Display after judgment

operation (17 page)

DSKMOD CD: Judged as CD
DSKMOD SL: Judged as SACD (SL)
DSKMOD DL: Judged as SACD (DL)
DSKMOD HLHD: Judged as HYBRID HD
DSKMOD CDRW: Judged as CD-RW

62

SET DISC CD

Enter disc type    CD setting

CD forced setting

63

SET DISC SL

Enter disc type    SL setting

SL forced setting

64

SET DISC DD

Enter disc type    DD setting

DD forced setting

65

SET DISC HH

Enter disc type    HYBRID HD setting

HD forced setting

66

SET DISC HC

Enter disc type    HYBRID CD setting

CD forced setting