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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 (page 17)

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

SetDiscMode

Enter disc type    CD setting

CD forced setting

63

Enter disc type    SL setting

SL forced setting

64

Enter disc type    DD setting

DD forced setting

65

Enter disc type    HYBRID HD setting

HD forced setting

66

Enter disc type    HYBRID CD setting

CD forced setting

6F

Download

Not used for the servicing

A

17

TOOLS command (8X): Performs aging, reads adjusting parameters, etc.

No.

Name

Description

Remarks

81

VERSION

Firmware version is displayed

Example: Ver 1.00

83

TRAY AGING

Tray open-close aging is performed

Number of times and eccentricity

Not used for the servicing

measurement   Not used in this set.

84

JITTER

Jitter measurement

Not used for the servicing

85

ERROR RATE

Error rate measurement

Error rate

CD: C1, C2

Not used for the servicing

SACD: PO, PI1, PI2

86

ALL SRV ON

Apply all servos

Use when applying the servo by

Full automatic measurement including PI, FE and TE offset adjustment is

manual operation

performed

Refer to STANDARD command (page 15)

87

DISP ADJ DT

Automatic adjusting parameters are displayed

Refer to auto check items  (page 20)

The offset adjusted values are scroll-displayed in order of RF, VC, FE and
TE

Refer to auto check items  (page 20)

8A

FL TEST

Not used for the servicing

8d

Set Up Init

Set to factory shipping mode

Set when repair completed

PLAY, REPEAT, DIGIFIL, etc. are initialized

Refer to 5-7. SHIPPING MODE (page 25)

8F

49 TRCK JIT

Used for jitter measurement of 49th music on SACD-S4

For manufacturing line
Not used for the servicing

QA command (9X)

No.

Name

Description

Remarks

91

F.JMP CHECK

Not used for the servicing

92

SET CHECK

The set is checked

Refer to 5-2. AUTO CHECK (page 20)

93

WATER MARK

Not used for the servicing

94

SET AGING

The set aging is performed

Refer to 5-6. AGING MODE (page 25)

Repeat by the specified number of times or until an error occurred

95

DISP ERROR

The content of error recorded to the set is read and displayed

Refer to Error Display list (page 26)

(Error recording) Only one item is recorded

96

D-OUT OnOff

Digital out of CD is turned on or off

Not used in this set.

98

APDD JITTER

Not used for the servicing

9C

BU DENCHO

The content of error recorded to the set is read, and then the S curve

Refer to 5-8.WAVEFORMS CHECK

waveform, traverse waveform, and RF waveform can be checked

(page 27)

successively

9D

P-ON HOUR

Approximate cumulative power supplying time is displayed

In unit of 1 hour

(Initialized by 8d command)

9E

RFD OUT

RFD output is turned on or off

Not used for the servicing

SACD jitter measuring mode

In analyzing failures of the set, the servo may be applied by manual operation. To apply servo in the test mode, use the following method.
1. After setting the test mode, rotate the 

[        AMS        ]

 dial to select a command, and press the 

[        AMS        ]

 dial to enter.

2. “61 DISC DETECT” (Disc type check)

t“86 ALL SRV ON”  (All servos on + auto adjustment)

3. If applying servo while checking the condition one by one, “61 DISC DETECT” (Disc type check)

t“31 PI/FE OFSET” (Offset

automatic adjustment)

t“14 FSRV ON/OFF” (Focus servo on)t“16 CLV ON/OFF” (CLV servo on)t“44 ADJ TRK DSP ” (E-F

balance adjustment)

t“15 TSRV ON/OFF” (Tracking servo on)t“17 SSRV ON/OFF” (Sled servo on)t“24 ADJ FCSBIAS” (Fo-

cus bias adjustment)

t“27 FOCUS AGC” (Focus auto gain adjustment)t“45 TRACKING AGC” (Tracking auto gain adjustment).

1. On and off are alternately switched in the same command.
2. For a stop, select “19 ALL SRV OFF” and press the 

[        AMS        ]

 dial.

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18

Press the 

[        AMS        ]

 dial when No.sssss sssss*1 is displayed, and a checking for that display will start or the lower layer

will be selected. For the selection on the same layer, rotate the 

[        AMS        ]

 dial. It is looped on the same layer, and when “END?” is

displayed, press the 

[        AMS        ]

 dial to return to the upper layer.

*1 s denotes a displayed character.

In the “12. MANUAL CHK”, individual checks (121. LOAD IN to 12A. LOAD OUT) are possible.

 If 124. READ TOC & PSP of 12. MANUAL CHECK is to be checked.

Setting Method:
1. After setting the test mode, rotate the 

[        AMS        ]

 dial to select “92. SET CHECK” and press the 

[        AMS        ]

 dial to enter.

2. When “SET TEST START” is displayed, rotate the 

[        AMS        ]

 dial clockwise by 2 clicks to select “1. TOTAL CHECK?”

and press the 

[        AMS        ]

 dial to enter.

3. When “10. TOTAL CHECK” is displayed, rotate the 

[        AMS        ]

 dial clockwise by 2 clicks to select “12. MANUAL CHK?" and

press the 

[        AMS        ]

 dial to enter.

4. When “120. MANUAL CHK” is displayed, rotate the 

[        AMS        ]

 dial clockwise by 4 clicks to select “124. READ TOC & PSP?”

and press the 

[        AMS        ]

 dial to enter.

5. A checking will start automatically.

In making a check, the disc must be loaded. Immediately when a check started, the tray is drawn into the set. Also, the tray can be opened/closed
even during the set check mode.

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19

The communication between microcomputer and main ICs (self-
diagnosis) and the fluorescent display tube all lit are checked.

Checking Method:
1. After setting the test mode, rotate the 

[        AMS        ]

 dial to

select “92. SET CHECK” and press the 

[        AMS        ]

 dial

to enter.

2. When “SET TEST START” is displayed, rotate the

[        AMS        ]

 dial clockwise by 1 click to select “0. IC&FL

CHECK?” and press the 

[        AMS        ]

 dial to enter.

3. A checking will start automatically, and “0. IC&FL CHECK”

will be displayed. (Checking time is about 3 seconds)

4. After IC communication check, all segments of fluorescent

display tube will be lit. At this time, check visually for a skipped
character.

5. At successful completion of check, “0. IC CHECK OK” is

displayed. In this case, no error exists in the IC interface. Pro-
ceed to 5-2. AUTO CHECK.

The check mentioned above tests the communication from micro-
computer to main ICs. Even if the check successfully finished, the
IC to be checked is not always normal. Consider it for reference
only.

6. In case of an IC communication error, the following display

will be given during the checking. Possible causes of error are
as listed below.

Error display

Causes  (typical example)

DVD DEC. ERROR

1. IC701 (SACD decoder) is faulty
2. IC701 pin <znv (XRST) does not go “H”

• IC901 pin ts (XDIS) does not go “H”
• IC902 (expander) is faulty

3. 768fs (33.86688 MHz) is not present to

IC701 pin <znm (XTAL)
• IC811 (3-multiplying circuit) is faulty
• Clock signal 256fs is not sent from

AUDIO board (CN702 pin 0)

• CN701 pin 3 (GND) and pin 2

(+3.3V-D) are open or shorted

• CN701, 702 and FFC connection is loose,

or FFC is disconnected

DVD DRAM ERR

1. IC706 (D-RAM) is faulty
2. IC701 pin <znv (XRST) does not go “H”

• IC901 pin ts (XDIS) does not go “H”
• IC902 (expander) is faulty

3. Faulty communication line between

IC701 and IC706
• Data line, address line, WE, etc.

4. D903 (1SS367) is faulty

D+3.3V is not present to IC706

CD DSP ERROR

1. IC509 (CD DSP) is faulty
2. 768fs (33.86688 MHz) is not present to

IC509 pin ua (XTAL)
Same as cause 3 of DVD DEC. ERROR

3. IC509 pin 2 (XRST) does not go “H”

• IC901 pin ts (XDIS) does not go “H”
• IC902 (expander) is faulty

EEPROM ERROR

1. IC903 (EEPROM) is faulty

Error display

Causes  (typical example)

PRAWN DRAM ERR

1. IC808 (D-RAM) is faulty

*1

2. IC801 (DSD decoder) is faulty
3. 768fs (33.86688 MHz) is not present to

IC801 pin qa (MCKI)
Same as cause 3 of DVD DEC. ERROR

4. IC801 pin 9 (XRST) does not go “H”

• IC901 pin ts (XDIS) does not go “H”
• IC902 (expander) is faulty

5. Faulty communication line between

IC801 and IC808
• Data line, address line, WE, etc.

6. D904 (1SS367) is faulty

D+3.3V is not present to IC808

RF AMP ERROR

1. IC001 (RF AMP) is faulty
2. Loose connection between CN708 on

MAIN board and CN005 on RF board,
or FFC disconnection
CN708 pin qj (CLK RF), pin qh (DATA
RF) and pin qg (SDEN) must be checked

*1 DSD decoder is also checked.

Causes Common to Each IC:
1. Faulty communication line between microcomputer and each

IC.
Disconnected patterns, floating series resistors, bridge, etc.

2. Faulty IC supply voltage.

Particularly, check D+3.3V voltage. (D+5V for display mi-
crocomputer)

3. Faulty microcomputer communication port to each IC

In case of more than two errors, the error display is switched over
one after another, thus making the reading difficult.
In such a case, press again the 

[        AMS        ]

 dial to make a

recheck for error reading.

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