Sony SCD-C555ES - Super Audio Cd, Service Manual

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60
SCD-C555ES
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
t
1, DOWN: layer 1
t
0
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
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 (62 page)
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 SET DISC CD Enter disc type CD setting CD forced setting
63 SET DISC SL Enter disc type SL setting SL forced setting
64 SET DISC DD Enter disc type DD setting DD forced setting
65 SET DISC HH Enter disc type HYBRID HD setting HD forced setting
66 SET DISC HC Enter disc type HYBRID CD setting CD forced setting