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9

 Follow the disassembly procedure in the numerical order given.

1

two screws

3

case

2

two flat head screws (TP)

2

two flat head screws (TP)

2

two flat head screws (TP)

2

loading panel assy

1

Pull out the tray.
(Refer to page 3, HOW TO 
OPEN THE TRAY WHEN 
POWER SWITCH TURNS 
OFF.)

6

two claws

4

connector 
(CN992)

7

front panel section

4

two connector
(CN305, 905)

3

wire (flat type) 
(11 core)
(CN706)

6

two claws

5

six screws
(BV/RING)

10

3

five screws
(BVT/RING)

2

four connectors
(CN301, 304, 305, 306)



















1

two wires 
(flat type) (19 core)
(CN302, 303)

7

AUDIO board

4

screw
(BVTT3

 

×

 

6)

5

two washers (DIA. 3.6)

0

three screws
(BVTT3

 

×

 

6)

6

PC board holder

8

wire (flat type)
(11 core) (CN706)

9

connector
(CN703)

0

screw
(BVTT3

 

×

 

6)

qs

MAIN board

qa

wiring stopper

9

two connectors
(CN704, 707)

8

wire (flat type)
(30 core) (CN708)

6

three screws
(BVTT3

 

×

 

8)

4

wire (flat type) (30 core)
(CN708)

7

mechanism deck
(CDM66B-DVBU6B)

2

loading panel assy

5

connector (CN151)

1

Pull out the tray.
(Refer to page 3, HOW TO OPEN THE TRAY 
WHEN POWER SWITCH TURNS OFF.)

3

Push 
the tray.

11

1

screw (DIA. 12), floating

2

– BOTTOM VIEW –

3

base unit (DVBU-6B)

base unit (DVBU-6B)

cam (66)

12

The contents of test mode are as follows.

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

LINE command (0X): Use mainly for a manufacturing line.

No.

Name

Description

Remarks

00

RFAmp Read

Each register set value of the IC001 (RF AMP) is displayed via RS-232C

Not used for the servicing

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

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

On or off are switched alternately

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

27

FOCUS AGC

The focus servo gain is adjusted automatically

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

In this set, various checks are automatically performed by executing
the commands in the test mode.

 This set makes adjustment every optical pick-up and stores its result

in the EEPROM (IC903) on the MAIN board. Accordingly, if a
combination of optical pick-up and EEPROM is changed, be sure
to perform 4-3. SET CHECK. Also, perform 4-1. IC INTERFACE
CHECK, 4-2. DISPLAY CHECK, and 4-6. 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]

 button on while pressing the 

[        AMS        ]

dial and the 

[MENU]

 button. Release the 

[MENU]

 button and the

[         AMS         ]

 dial in this order when “DIAG MODE” is displayed

on the fluorescent indicator tube.

To release the test mode, turn the 

[POWER]

 switch off.

To select and enter the “DIAG MODE”, 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.

l

L

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