Read Sony SCD-XE670 Service Manual online
13
SCD-XE670
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
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
Note:
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
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 14)
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
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
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