DOWNLOAD Sony SCD-XB940 (serv.man2) Service Manual ↓ Size: 262.95 KB | Pages: 22 in PDF or view online for FREE

Model
SCD-XB940 (serv.man2)
Pages
22
Size
262.95 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / SUPPLEMENT-1
File
scd-xb940-sm2.pdf
Date

Sony SCD-XB940 (serv.man2) Service Manual ▷ View online

5
Mechanism error code list (see page 7)
Service command list (see page 8)
DSP error code list (see page 8)
• Error Detection at the End of Adjustment
At the end of adjustment, whether the jitter is proper, and whether
the adjustment value is within allowable range are judged and dis-
played as a whole. If all parameters are within allowable range,
“Param Chk OK” will be displayed. If parameters out of the range
are detected, an error message such as “3 Errs occur” will be dis-
played (this case shows three errors occurred). Press 
[       AMS       ]
controller once to switch the display to the error list.
[Example]
1.
SL
TG
High
Parameter type
Disc type
Error No.
This case shows “the track gain exceeds the upper limit in single
layer disc adjustment”. If you want to know more details, with the
above display, press again the 
[       AMS       ]
 controller to display
details.
Err: SL  TG  Prm
In this state, rotate again the 
[       AMS       ]
 controller clockwise,
and the following will be displayed.
M:7C
E:3F
U:27
Limit value (U: Upper limit, L:
Lower limit)
Value stored in EEPROM
Adjustment value
This case shows “adjustment value 7C exceeds the upper limit,
and EEPROM holds the last value 3F”.
In this state, rotate again the 
[       AMS       ]
 controller clockwise,
and the judge result message will be displayed as follows:
  “TG Too High”
To return to the previous step, or to exit from the error display,
press the
X
button.
2. Manual Opr Menu
From the “Test Mode Menu”, rotate 
[       AMS       ]
 controller
clockwise to select “2. Manual Opr”. Press 
[       AMS       ] 
con-
troller, and then “TiltSledReset” 
 “Manual Opr” will be dis-
played, where you can select the following menu by rotating the
[       AMS       ]
 controller clockwise.
DISPLAY
Contents of Menu
1. Disc Type
Disc type check
2. Srv Control
Servo control
3. T/L Jump
Tracking jump
4. Manual Adj
Manual adjustment
5. Auto Adj
Auto adjustment
6. Mem Check
Servo memory check
0. Disc Chk Mem
Disc check
(1) 1. Disc Type
From the “Manual Opr” menu, rotate 
[       AMS       ]
 controller
clockwise to select “1. Disc Type”. Press 
[       AMS       ]
 controller,
and then “Disc Type” will be displayed, where you can select the
following menu by rotating the 
[       AMS       ]
 controller and
also can check each menu item by pressing the 
[       AMS       ]
controller.
l         L
l         L
l         L
l         L
l         L
DISPLAY
Contents of Menu
1. Type Auto
Disc type is checked and the mode for
that disc is set.
2. SACD SL 12cm
3. SACD DL 12cm
4. CD 12cm
5. HYBR-L1 12cm
Disc type is set.
6. HYBR-L0 12cm
7. SACD SL 8cm
8. CD 8cm
9. HYBR-L1 8cm
0. RST Sld/Tlt
Tilt/Sled are reset.
Note:
 For the hybrid disc, the HL1 (CD layer) mode is activated, and if
HD layer is to be played, use 6. HYBR-L0.  However, for hybrid
disc (8 cm), only the CD layer can be played.
(2) 2. Srv Control
From the “Manual Opr” menu, rotate 
[       AMS       ]
 controller
clockwise to select “2. Srv Control”.
Press 
[       AMS       ]
 controller, and then “Srv Con” 
 “NO DISC”
 “Srv Con 0000000” will be displayed, where you can select the
following menu by rotating the 
[       AMS       ]
 controller clock-
wise.
Note:
 Before “Servo Control”, “Disc Type Set” is needed.
DISPLAY
Contents of Menu
1. LD
2. SD
3. Focus
(1: ON, 0: OFF)
4. TRK
5. SLED
6. CLVA
7. F-Sch
Focus search
8. R S/T
Tilt/Sled are reset.
FF/FR move up and down the Tilt respectively, while Prev/Next
Index move the Sled inward and outward respectively. The opera-
tion stops when the
x
button is pressed. Until then, the commands
are issued successively, which could cause a trouble. Therefore,
normally do not use this menu.
• Checking method
Select each menu, and press the 
[       AMS       ] 
controller, and
then the following will be displayed for checking.
“1. LD” 1
0
0
0
0
0
0
Focus Search ON
CLVA ON
Sled ON
Tracking ON
Focus ON
Spindle ON
LD ON
Execution command
The above case is that only the LD is turned on. Rotating
[       AMS       ]
 controller clockwise, turn on the servo in order of
1. – 6. to check the servo.
l         L
l         L
l         L
l         L
l         L
l         L
l         L
l         L
l         L
l         L
l         L
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
CAUTION:
 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.
CAUTION:
 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
7
3
History clear
• How to clear all history data
For the items with “Clear History?” message, press 
[       AMS       ]
controller, and all emergency history data and all laser lighting
hours are cleared to 0.
• How to clear individual data
1
Emergency history clear
Press 
[DISPLAY MODE]
[CLEAR]
 buttons on the remote com-
mander in this order.
2
Laser lighting hour clear
Press 
[SACD/CD]
[CLEAR]
 buttons on the remote commander
in this order.
3
Setup clear
Press 
[REPEAT]
[CLEAR]
 buttons on the remote commander in
this order.
Five backup data of 
[PLAY MODE]
[CLEAR]
[SACD/CD]
,
[TIME/TEXT]
[DIGITAL FILTER]
 are cleared to the initial data.
5. Ver Info Menu
From the “Test Mode Menu”, rotate 
[       AMS       ]
 controller
clockwise to select “5. Ver Info”. Press
[       AMS       ]
 control-
ler, and “Version Info” message will be displayed. Rotating the
[       AMS       ]
 controller clockwise switches to the following dis-
play where the ROM version, date of creation, servo DSP version,
and checksum are displayed.
[Example]
V1.00
00/02/14
SrvDSP
1.000
RomCsum 711C
6. RF Jit Disp
From the “Test Mode Menu”, rotate 
[       AMS       ]
 controller
clockwise to select “6. RF Jit Disp”. Press 
[       AMS       ]
 control-
ler, and then “Set Disc” message will be displayed. Set a disc and
press 
[       AMS       ]
 controller, and “Sinup...” will be displayed,
then the jitter will be measured and displayed. To exit from this
mode, press the X button.
 <Jitter measurement and display example>
CD
22
2A 000000
Sector address
CLV status
Jitter value
 Disc type (auto check)
SL : Single layer disc
HC : Hybrid layer disc, CD layer
HD : Hybrid layer disc, SACD layer
DL : Dual layer disc
CD : CD disc
1
The disc type is checked automatically.
2
For a hybrid disc, rotating the 
[       AMS       ]
 controller can
switch the layer during jitter adjustment. Also, rotating the
[       AMS       ]
 controller can jump to inner track, middle track,
or outer track.However, the address is fixed. Music cannot be
searched. For a dual layer disc, a jump between layers is pos-
sible.
1. Play HD-HL0
2. Play CD-HL1
3. Jp Md1 Track
4. Jp Inn Track
5. Jp Out Track
6. Jp DL0 -> DL1
7. Jp DL1 -> DL0
3
Press A button to change the disc.
l         L
l         L
l         L
l         L
l         L
7. PDM Mode Menu
This mode is not normally used.
8. CDM Adj Menu
This mode is not normally used.
9. Set Up Init Menu
From the “Test Mode Menu”, rotate 
[       AMS       ]
 controller
clockwise to select “7. Set Up Init”. Press 
[       AMS       ]
controller, and “Initialized” will be displayed, then “Reset? Y/N”
will be displayed. Press again 
[       AMS       ]
 controller, and
“Restart ...” will be displayed, and then the player will be reset
and restarted. (At the restart, the set exits from the Test mode.)
10. Sld Ship Pos Menu
Moving sled  the fuctory set up position.
Mechanism error code
Emergency
Category
Emergancy Name
 Code
Electrical
SSI ERR
10
DSP ERR
11
EEP ERR
12
EEP HOURS METER WRITE ERR
13
DSP BUSY TIME OUT
14
EEP CHECK SUM NG
15
DSP BUSY TIME OUT ESCAPE
16
Mechanism
TILT SLED RESET NG
20
TILT MOVE NG
21
TILT REQ POSI NG
22
SLED MOVE NG
23
SLED REQ POSI NG
24
Adjustment
ADJ TRK BAL NG
30
ADJ TRK GAIN
31
ADJ FCS BAL NG
32
ADJ FCS BIAS NG
33
ADJ FCS GAIN
34
ADJ TILT NG
35
ADJ EQ BOOST NG
36
ADJ GD NG
37
ADJ LAST JITTER NG
38
ADJ GAIN RANGE OVER
3F
Focus
FOCUS NG
F1
FOCUS JUMP COUNT OVER
41
Spindle
CLV LOCK NG
1F
SPDL BRAKE COUNT OVER
51
Sheek
SACD REQ ADR NG
60
CD REQ ADR NG
61
CD REQ INDEX NG
62
SACD SEEK COUNT OVER
63
CD SA SEARCH COUNT OVER
64
CD INDEX SEARCH COUNT OVER
65
Date
SACD INFO NG
70
CD INFO TIME OUT
71
Other
RECOVERY DISC CHECK NG
DF
RECOVERY COUNT OVER
81
DISC CHECK ERR
DF
DISC CHECK TIME OUT
83
INVALID CMD CODE
84
INVALID CMD
85
DUMMY JOB
86
NEXT MODE NONE
87
l         L
l         L
l         L
l         L
l         L
l         L
l         L
8
History disc type
Display
Contents
0x00
TBD
0x01
CheckErr
0x02
NoDisc
0x03
SacdSl08
0x04
SacdSl12
0x05
SacdDl08
0x06
SacdDl12
0x07
Cd08
0x08
Cd12
0x09
Hl08
0x0a
Hl12
0x: Hex.
Mechanism mode
Display
Contents
0x00
Reset
0x01
DriveInit
0x02
PonReady
0x03
MechInit
0x04
Stop
0x05
DiscCheck
0x06
SpinUp
0x07
SpinDown
0x08
Seek
0x09
Trace
0x0a
Pause
0x0b
Recovery
0x0c
RecoDc
0x0d
SrvcStop
0x0e
Srvc
0x: Hex.
Self diagnosis error code
Display
Contents
00
Normal end
01
SRAM Read/Write NG
02
HGA NG
03
EEPROM NG
04
ARP Resister NG
05
ARP DATA BUS NG
06
ARP ADDRESS BUS NG
07
ARP RAM Read/Write NG
08
Servo DSP Resister NG
09
SACD CHIP DRAM NG
10
SACD CHIP DRAM TIME OUT
11
SACD CHIP BUS NG
12
SDBUS NG
13
SDBUS TIME OUT
Service command
Display
Contents
code
Tray Open
Tray open
01
Tray Close
Tray close
02
Set Disc Type
Set Disc Type
03
Sled Go Home
Sled move Home position
04
Tilt Go Home
Tilt move Home Position
05
Sled Tilt Reset
Sled/Tilt Reset
06
Tray Down
Tray chuck Down
07
All Servo Stop
All Servo stop
10
Ld On
Laser diode ON
11
Ld Off
Laser diode OFF
12
Focus Search
Focus Search
13
Focus Off
Focus Servo OFF
14
Focus Search On
Focus Servo ON
15
Tracking On
Tracking Servo ON
17
Tracking Off
Tracking Servo OFF
18
Sled On
Sled Servo ON
19
Sled Off
Sled Servo OFF
1A
Sled Move Fwd
Sled Move Foward
1B
Sled Move Rev
Sled Move Reverse
1C
Sled Direct Move
Sled Direct Move
1D
Spdl Start
disc size cheking and
spendle start
20
Spdl Stop
Spingdle stop
21
Cav On
Spindle with
normal speed ON
22
Clva On
CLVA Servo ON
26
Tilt Move Down
Tilt Move Down
2B
Tilt Move Up
Tilt Move Up
2C
Tilt Direct Move
Tilt Direct Move
2D
Lj (L0 -> L1)
LayerJump
(Tracking/Sled Servo ON)
3A
Lj (L1 -> L0)
3B
Fj (L0 -> L1)
FocusJump
(Tracking/Sled Servo OFF) 3C
Fj (L1 -> L0)
3D
DSP error code
Task code (Upper Column)
Code*
Contents
2
Traking balance adjustment
3
Focus Search
4
Focus jump
5
Traking ON
6
1, 2 Track jump
7
Middle Track jump
8
Large Track jump
9
Sled move
c
Sled ON
d
Sereal
*Code: Hex.
Error code (Lower column)
Code*
Contents
2
Sequence Command in Sequence
3
Invalid Parameter
4
Sequence Stop by “time out”
5
Sequence Stop except “time out”
6
Not FOK
7
Not LOCK
8
Servo ON in servo ON
9
Defect Continuation Detect
a
Focus OFF
b
Tracking OFF
c
ACK Error
*Code: Hex.
Page of 22
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