Sony SCD-555ES Service Manual ▷ View online
61
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.(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 (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
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
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
Number of times and eccentricity
Not used for the servicing
measurement
84
JITTER
Jitter measurement
Not used for the servicing
85
ERROR RATE
Error rate measurement
Error rate
CD: C1, C2
Not used for the servicing
SACD: PO, PI1, PI2
86
ALL SRV ON
Apply all servos
Use when applying the servo by
Full automatic measurement including PI, FE and TE offset adjustment is
manual operation
performed
Refer to STANDARD command (60 page)
87
DISP ADJ DT
Automatic adjusting parameters are displayed
Refer to auto check items (65 page)
The offset adjusted values are scroll-displayed in order of RF, VC, FE and
TE
TE
Refer to auto check items (65 page)
88
(DISP ADJ DT)
Automatic adjusting parameters are displayed
Refer to auto check items (65 page)
The set values of adjusting registers are scroll-displayed in order of PIOR,
CCR and TRCR
CCR and TRCR
89
(DISP ADJ DT)
Automatic adjusting parameters are displayed
Refer to auto check items (65 page)
The adjusted values are scroll-displayed in order of FGAIN, TGAIN,
FBIAS and TRVSC
FBIAS and TRVSC
8d
Set Up Init
Set to factory shipping mode
Set when repair completed
PLAY, REPEAT, DIGIFIL, etc. are initialized
Refer to 6-6. SHIPPING MODE (69 page)
8F
49 TRCK JIT
Used for jitter measurement of 49th music on SACD-S4
For manufacturing line
Not used for the servicing
Not used for the servicing
62
QA command (9X)
No.
Name
Description
Remarks
92
SET CHECK
The set is checked
Refer to 6-2 AUTO CHECK (65 page)
94
SET AGING
The set aging is performed
Refer to 6-5 AGING MODE (69 page)
Repeat by the specified number of times or until an error occurred
95
DISPLAY ERROR
The content of error recorded to the set is read and displayed
(Error recording) Only one item is recorded
(Error recording) Only one item is recorded
96
D-OUT OnOff
Digital out of CD is turned on or off
98
APDO JITTER
Not used for the servicing
9C
BU DENCHO
The content of error recorded to the set is read, and then the S curve
Refer to 6-7WAVEFORMS CHECK
waveform, traverse waveform, and RF waveform can be checked
(71 page)
successively
9D
P-ON HOUR
Approximate cumulative power supplying time is displayed
In unit of 1 hour
(Initialized by 8d command)
9E
RFD OUT
RFD output is turned on or off
Not used for the servicing
SACD jitter measuring mode
How to Apply Servo by Manual Operation
In analyzing failures of the set, the servo may be applied by manual operation. To apply servo in the test mode, use the following method.
1. After setting the test mode, rotate the
1. After setting the test mode, rotate the
[ AMS ]
dial to select a command, and press the
[ AMS ]
dial to enter.
2. “61 DISC DETECT” (Disc type check)t“86 ALL SRV ON” (All servos on + auto adjustment)
3. If applying servo while checking the condition one by one, “61 DISC DETECT” (Disc type check)t“31 PI/FE OFSET” (Offset
3. If applying servo while checking the condition one by one, “61 DISC DETECT” (Disc type check)t“31 PI/FE OFSET” (Offset
automatic adjustment)t“14 FSRV ON/OFF” (Focus servo on)t“16 CLV ON/OFF” (CLV servo on)t“44 ADJ TRK DSP ” (E-F
balance adjustment)t“15 TSRV ON/OFF” (Tracking servo on)t“17 SSRV ON/OFF” (Sled servo on)t“24 ADJ FCSBIAS” (Focus
bias adjustment)t“27 FOCUS AGC” (Focus auto gain adjustment)t“45 TRACKING AGC” (Tracking auto gain adjustment).
balance adjustment)t“15 TSRV ON/OFF” (Tracking servo on)t“17 SSRV ON/OFF” (Sled servo on)t“24 ADJ FCSBIAS” (Focus
bias adjustment)t“27 FOCUS AGC” (Focus auto gain adjustment)t“45 TRACKING AGC” (Tracking auto gain adjustment).
Note:
1. On and off are alternately switched in the same command.
2. For a stop, select “19 ALL SRV OFF” and press the
2. For a stop, select “19 ALL SRV OFF” and press the
[ AMS ]
dial.
Set Check
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Press the
[ AMS ]
dial when No.sssss sssss*1 is displayed, and a checking for that display will start or the lower layer
will be selected. For the selection on the same layer, rotate the
[ AMS ]
dial. It is looped on the same layer, and when “END?” is
displayed, press the
[ AMS ]
dial to return to the upper layer.
*1 s denotes a displayed character.
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92. SET CHECK
SET TEST START
10. TOTAL CHECK
120. MANUAL CHK
0. IC&FL CHECK ?
11. AUTO CHECK ?
121. LOAD IN ?
1. TOTAL CHECK ?
12. MANUAL CHK ?
122. SPIN UP ?
13. DISP RSLT ?
123. PARAMETER ?
3.HYB CHECK ?
TOTAL CHK END ?
124. READ TOC&PSP ?
2. F.JUMP CHECK ?
4. DISP ERROR ?
125. 1/3 SEEK ?
END ??
126. 1-M SEEK ?
127. ERROR RATE ?
128. HENSHIN ?
129. SPIN DOWN ?
12A. LOAD OUT ?
MAN. CHK END?
63
Manual Check Method
In the “12. MANUAL CHK”, individual checks (121. LOAD IN to 12A. LOAD OUT) are possible.
Example:
If 124. READ TOC of 12. MANUAL CHECK is to be checked.
Setting Method:
1. After setting the test mode, rotate the
1. After setting the test mode, rotate the
[ AMS ]
dial to select “92. SET CHECK” and press the
[ AMS ]
dial to enter.
2. When “SET TEST START” is displayed, rotate the
[ AMS ]
dial clockwise by 2 clicks to select “1. TOTAL CHECK?”
and press the
[ AMS ]
dial to enter.
3. When “10. TOTAL CHECK” is displayed, rotate the
[ AMS ]
dial clockwise by 2 clicks to select “12. MANUAL CHK?" and
press the
[ AMS ]
dial to enter.
4. When “120. MANUAL CHK” is displayed, rotate the
[ AMS ]
dial clockwise by 4 clicks to select “124. READ TOC&PSP?”
and press the
[ AMS ]
dial to enter.
5. A checking will start automatically.
Note:
In making a check, the disc must be loaded. Immediately when a check started, the tray is drawn into the set. Also, the tray can be opened/closed
even during the set check mode.
even during the set check mode.
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64
6-1. IC AND FLUORESCENT DISPLAY TUBE CHECK
(SELF-DIAGNOSIS)
The communication between microcomputer and main ICs (self-
diagnosis) and the fluorescent display tube all lit are checked.
diagnosis) and the fluorescent display tube all lit are checked.
Checking Method:
1. After setting the test mode, rotate the
1. After setting the test mode, rotate the
[ AMS ]
dial to
select “92. SET CHECK” and press the
[ AMS ]
dial
to enter.
2. When “SET TEST START” is displayed, rotate the
[ AMS ]
dial clockwise by 1 click to select “0. IC&FL
CHECK?” and press the
[ AMS ]
dial to enter.
3. A checking will start automatically, and “0. IC&FL CHECK”
will be displayed. (Checking time is about 3 seconds)
4. After IC communication check, all segments of fluorescent
display tube will be lit. At this time, check visually for a skipped
character.
character.
5. At successful completion of check, “0. IC CHECK OK” is
displayed. In this case, no error exists in the IC interface. Pro-
ceed to 6-2. AUTO CHECK.
ceed to 6-2. AUTO CHECK.
Note:
The check mentioned above tests the communication from micro-
computer to main ICs. Even if the check successfully finished, the
IC to be checked is not always normal. Consider it for reference
only.
computer to main ICs. Even if the check successfully finished, the
IC to be checked is not always normal. Consider it for reference
only.
6. In case of an IC communication error, the following display
will be given during the checking. Possible causes of error are
as listed below.
as listed below.
Error display
Causes (typical example)
DVD DEC. ERROR
1. IC701 (SACD decoder) is faulty
2. IC701 pin <znv (XRST) does not go “H”
2. IC701 pin <znv (XRST) does not go “H”
• IC901 pin rf (XDIS) does not go “H”
• IC902 (expander) is faulty
• IC902 (expander) is faulty
3. 768fs (33.86688 MHz) is not present to
IC701 pin <znm (XTAL)
• IC811 (3-multiplying circuit) is faulty
• Clock signal 256fs is not sent from
• Clock signal 256fs is not sent from
AUDIO board (CN901 pin qg)
• CN901 pin qh (DFGND) and pin qf
(DF3V) are open or shorted
• CN901 pin qh (DFGND) and pin qf
(DF3V) are open or shorted
• CN901 and FFC connection is loose,
or FFC is disconnected
DVD DRAM ERR
1. IC706 (D-RAM) is faulty
2. IC701 pin <znv (XRST) does not go “H”
2. IC701 pin <znv (XRST) does not go “H”
• IC901 pin rf (XDIS) does not go “H”
• IC902 (expander) is faulty
• IC902 (expander) is faulty
3. Faulty communication line between
IC701 and IC706
• Data line, address line, WE, etc.
• Data line, address line, WE, etc.
4. D903 (1SS367) is faulty
CD DSP ERROR
1. IC509 (CD DSP) is faulty
2. 768fs (33.86688 MHz) is not present to
2. 768fs (33.86688 MHz) is not present to
IC509 pin ua (XTAL)
Same as cause 3 of DVD DEC. ERROR
3. IC509 pin 2 (XRST) does not go “H”
• IC901 pin rf (XDIS) does not go “H”
• IC902 (expander) is faulty
• IC902 (expander) is faulty
D/A ERROR
1. IC904 (D/A converter) is faulty
2. Faulty IC703 (jitter amplifier) peripheral
2. Faulty IC703 (jitter amplifier) peripheral
circuits
3. IC901 pin yf (JIT) is faulty
EEPROM ERROR
1. IC903 (EEPROM) is faulty
Error display
Causes (typical example)
PRAWN DRAM ERR
1. IC808 (D-RAM) is faulty
*1
2. IC801 (DSD decoder) is faulty
3. 768fs (33.86688 MHz) is not present to
3. 768fs (33.86688 MHz) is not present to
IC801 pin qf (MCKI)
Same as cause 3 of DVD DEC. ERROR
4. IC801 pin qd (XRST) does not go “H”
• IC901 pin rf (XDIS) does not go “H”
• IC902 (expander) is faulty
• IC902 (expander) is faulty
5. Faulty communication line between
IC801 and IC808
• Data line, address line, WE, etc.
• Data line, address line, WE, etc.
6. D903 (1SS367) is faulty
D+3.3V is not present to IC808
RF AMP ERROR
1. IC001 (RF AMP) is faulty
2. Loose connection between CN503 on
2. Loose connection between CN503 on
MAIN board and CN001 on RF board,
or FFC disconnection
CN503 pin ql (CLK RF), pin w; (DATA
or FFC disconnection
CN503 pin ql (CLK RF), pin w; (DATA
RF) and pin wa (SDEN) must be checked
*1 DSD decoder is also checked.
Causes Common to Each IC:
1. Faulty communication line between microcomputer and each
1. Faulty communication line between microcomputer and each
IC.
Disconnected patterns, floating series resistors, bridge, etc.
Disconnected patterns, floating series resistors, bridge, etc.
2. Faulty IC supply voltage.
Particularly, check D+3.3V voltage. (D+5V for display
microcomputer)
microcomputer)
3. Faulty microcomputer communication port to each IC
Note:
In case of more than two errors, the error display is switched over
one after another, thus making the reading difficult.
In such a case, press again the
one after another, thus making the reading difficult.
In such a case, press again the
[ AMS ]
dial to make a
recheck for error reading.
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