SCD-XB940 (serv.man2) - Sony Audio Service Manual (repair manual). Page 6

6

Also, with the servo of 1. – 6. turned on, press the 

[CHECK]

 but-

ton on the remote commander, so that you can check the disc type,
jitter, etc. To return to original display, press the 

[CHECK]

 button

again.
[Example]

SL

18

2A 020520

Sector address

CLV status

Jitter value

Disc type

 In 7. F-Sch menu, the servo is not applied, thus causing opti-

cal system to be damaged if used together with other menu.
Never use it.

(3) 3. T/L Jump
This adjustment is not normally used.

(4) 4. Manual Adj
This adjustment is not normally used.

(5) 5. Auto Adj
This adjustment is not normally used.

(6) 6. Mem Check
From the “Manual Opr” menu, rotate 

[       AMS       ]

 controller

clockwise to select “6. Mem Check”. Press 

[       AMS       ]

controller, and then “EEPROM Data” will be displayed, where
you can select the following menu by rotating the 

[       AMS       ]

controller clockwise.

DISPLAY

Contents of Menu

CD

HYBR

SL

Servo setting check

DL-L0

DL-L1

1

Select each menu and press 

[       AMS       ]

 controller, and

then the contents of servo setting stored in the EEPROM will
be displayed.

2

 The contents of servo setting are same as those in (7) 6.
Memory Check of Auto Adjust menu. (See page 4)

3

 In this menu, default value can be written to the EEPROM.
Press the 

[CLEAR]

 buttonon on the Remote commander,

“Deflt Set? Y/N” message will be displayed, and then press

[       AMS       ]

 controller. When “EepDfltSet” message is dis-

played, default value can be written to the EEPROM. To can-
cel default value setting, press the X button.

 If you do “EepDfltSet”, after “EepDfltSet”, “Auto Adjust-

ment” is needed. (see page 3)

(7) 7. Disc Chk Mem
From the “Manual Opr” menu, rotate 

[       AMS       ]

 controller

clockwise to select “0. Disc Chk Mem”. Press 

[       AMS       ]

controller, and then “Disc Check” will be displayed, where you
can select the following menu by rotating the 

[       AMS       ]

controller clockwise.

DISPLAY

Contents of Menu

1. SL Disc Chk

2. CD Disc Chk

Disc Type Check

3. DL Disc Chk

0. Rst Sld/Tlt

Tilt and Sled are reset.

•

Select the menu 1. – 3. and press the 

[       AMS       ]

 control-

ler, and “New 3D” will be displayed, and then each display
corresponding to the selected menu 1. – 3. will return.

3. Mecha Aging Menu
This is the mechanism aging mode.
From the “Test Mode Menu”, rotate 

[       AMS       ]

 controller

clockwise to select “3. Mecha Aging”. Press 

[       AMS       ] 

con-

 controller, and “Mecha Aging”

 →

 “Abort Stop Key”

 →

 “Press

Open Key” will be displayed. Press A button

 →

G button in

this order, and the tray will be opened and closed repeatedly, and
its count will be displayed. Up to 2,147,483,647 times can be
counted. In such a case, the disc type is also checked.
[Example]

C:  2526

Number of counts

To quit this operation, press x and X buttons. (Simultaneously,
the count is cleared.)

4. Emg History Menu
From the “Test Mode Menu”, rotate 

[       AMS       ]

 controller

clockwise to select “4. Emg History”. Press 

[       AMS       ]

 con-

troller, and “EMG History” message will be displayed. Rotating
the 

[       AMS       ]

 controller clockwise switches to the following

display where the servo emergency history (1. – 10.) and the laser
lighting hours are displayed.

1. 1F

06080000

2. 2F

06080000

3. 00

00000000

4. 00

00000000

5. 00

00000000

6. 00

00000000

7. 00

00000000

8. 00

00000000

9. 00

00000000

10. 00

00000000

LASR

0h

CD

0h

SACD

0h

Clear History?

1

How to see code

[Example]

11

06 04 C701

History buffer 2byte DSP error code
(see page 8)

History disc type (see page 8)

Mechanism mode (see page 8)

Mechanism error code (see page 7)

This case shows “DSP error, Spin up mode, SL 12cm, CLV un-
lock at Sled ON”.
Also, at this time, pressing 

[       AMS       ]

 controller causes all

emergency information (16 bytes) to be displayed every 4 bytes
for 4 items.
[Example]

1-1

00000000

Emergency information 1

Item No.: Variable each time the 

[       AMS       ]

 controller is

pressed

2

Laser lighting hours

[Example]

LASR

14h

CD

6h

SACD

8h

LASR displayed value is the total of CD and SACD laser lighting
hours. (The time less than minutes is omitted.)

l         L

l         L

l         L

l         L

l         L

l         L

l         L

l         L

l         L

l         L

l         L

l         L

l         L

l         L

l         L

l         L