SCD-XB790 - Sony Audio Service Manual (repair manual). Page 13

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13
SCD-XB790
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
FINE SEARCH
Fine search is performed
53
M-TRCK MOVE
M-track movement is performed
DISC DETECT command (6X): Disc type check related.
No.
Name
Description
Remarks
Disc type check is executed
Display after judgment
61
DISC DETECT
DSKMOD CD: Judged as CD
Refer to how to apply servo by manual
DSKMOD SL: Judged as SACD (SL)
operation (See page 14)
DSKMOD DL: Judged as SACD (DL)
DSKMOD HYB: Judged as HYBRID
62
CD SETTING
Enter disc type    CD setting
CD forced setting
63
SL SETTING
Enter disc type    SL setting
SL forced setting
64
DL SETTING
Enter disc type    DL setting
DL forced setting
6F
Download
Not used for the servicing
LASER command (7X): Laser of optical pick-up related.
No.
Name
Description
Remarks
7A
ADDTIME CD
Cumulative light emission time of the laser for CD is displayed
 (Initialized by 8D command)
7B
ADDTIME HD
Cumulative light emission time of the laser for SACD is displayed
 (Initialized by 8D command)
7C
FJUMP TEST
Not used for the servicing
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
Not used for the servicing
87
DISP ADJ DT
Automatic adjusting parameters are displayed via RS-232C
Not used for the servicing
8A
FL CHECK
Display of fluorescent indicator tube and keys are checked
8D
SETUP MODE
Set to factory shipping mode
Set when repair completed
PLAY MODE, etc. are initialized
Refer to 4-5. SHIPPING MODE (See page 17)
QA command (9X)
No.
Name
Description
Remarks
91
FJUMP CHECK
The focus jump is checked
Not used for the servicing
92
SET CHECK
The set is checked
Refer to 4-3. SET CHECK (See page 15)
93
WATER MARK
Not used for the servicing
94
SET AGING
The set aging is performed
Not used for the servicing
Repeat by the specified number of times or until an error occurred
95
FJMP CHK BU
The focus jump is checked (for jig)
Not used for the servicing
9C
BU DENCHO
The S curve waveform, traverse waveform, and RF waveform can be
Refer to 4-6.WAVEFORMS CHECK
checked successively
(See page 17)
9D
PLAY&RFD ON
SACD playback, RFD output
Not used for the servicing
SACD jitter measuring mode
9E
RFD ON/OFF
RFD output is turned on or off
Not used for the servicing
SACD jitter measuring mode
IC command (AX)
No.
Name
Description
Remarks
A0
IC SELF CHK
Each IC and its communication are checked
Normal or up are switched alternately
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