Sony SCD-C555ES Service Manual ▷ View online
61
SCD-C555ES
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 Not used in this set.
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 (54 page)
87
DISP ADJ DT
Automatic adjusting parameters are displayed
Refer to auto check items (59 page)
The offset adjusted values are scroll-displayed in order of RF, VC, FE and
TE
TE
Refer to auto check items (59 page)
8d
Set Up Init
Set to factory shipping mode
Set when repair completed
PLAY, REPEAT, DIGIFIL, etc. are initialized
Refer to 6-7. SHIPPING MODE (64 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
QA command (9X)
No.
Name
Description
Remarks
92
SET CHECK
The set is checked
Refer to 6-2. AUTO CHECK (59 page)
94
SET AGING
The set aging is performed
Refer to 6-6. AGING MODE (64 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
Not used in this set.
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 6-8.WAVEFORMS CHECK
waveform, traverse waveform, and RF waveform can be checked
(66page)
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” (Fo-
cus 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” (Fo-
cus 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.
l
L
l
L
l
L
62
SCD-C555ES
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.
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.
Set Check
l
L
l
L
l
L
l
L
l
L
l
L
l
L
l
L
l
L
l
L
l
L
92. SET CHECK
SET TEST START
10. TOTAL CHECK
120. MANUAL CHK
0. IC&FL CHECK ?
11. AUTO CHECK ?
121. LOAD IN ?
(Not used.)
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 ?
(Not used.)
MAN. CHK END?
63
SCD-C555ES
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
• IC811 (3-multiplying circuit) is faulty
• Clock signal 256fs is not sent from
AUDIO board (CN902 pin 4)
• CN902 pin 1,5 (DFGND) and pin 3
(3.3V-D) are open or shorted
• CN902 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
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
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 qa (MCKI)
Same as cause 3 of DVD DEC. ERROR
Same as cause 3 of DVD DEC. ERROR
4. IC801 pin 9 (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. D904 (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
RF) and pin wa (SDEN) must be checked
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 mi-
crocomputer)
crocomputer)
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.
l
L
l
L
l
L
l
L
l
L
64
SCD-C555ES
6-2. AUTO CHECK (AUTOMATIC VARIOUS MEASUREMENTS)
The auto check is performed to check if the set operates stably. Though a checking is made automatically, whether the measured data are
within the specification is evaluated by the service person. The auto check results in NG immediately, if the check itself causes an error.
within the specification is evaluated by the service person. The auto check results in NG immediately, if the check itself causes an error.
Setting Method of Auto Check Mode:
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 1 click to select “11. AUTO CHECK?”.
CD and SACD (SL) Disc Operation Check
Checking method:
1. Press the
1. Press the
[OPEN/CLOSE]
button to open the tray and place the test disc *1. The [OPEN/CLOSE] key is disabled immediately after the
machine enters the TEST mode. Be sure to initialize the table.
2. Press the
[ AMS ]
dial, and the following check will be performed automatically.
3. Finally, the test disc will be ejected and the auto check will finish.
4. “AUTO CHECK OK” will be displayed at successful completion of auto check.
5. Recheck is enabled if the
4. “AUTO CHECK OK” will be displayed at successful completion of auto check.
5. Recheck is enabled if the
[ AMS ]
dial is pressed in step 4. (Also, use this operation when exchanging the test disc)
6. In case of an error during the checking, the check is interrupted automatically and the error is displayed. (Error display example:
“DISC DETECT ERROR”) After error display, “CONT?STOP (J/S)” is displayed. In this case, if the
[ AMS ]
dial is pressed,
the check where the error occurred is skipped and you can proceed to the next check. Also, x if button is pressed, the check finishes
and “AUTO CHECK NG” is displayed when even one NG item exists.
and “AUTO CHECK NG” is displayed when even one NG item exists.
*1 Use PATD-012 or YEDS-18 for CD, and SATD-S5 or SATD-S4 for SACD (SL). Using another disc will result in a checking failure.
Check Items:
Items
Description
Remarks
LOAD IN TIME (msec)
Time until a disc is chucked from the state where loading tray is out
Loading in switch HtL
SPIN UP TIME (msec)
Time from spindle kick to PLL lock
Lock signal LtH
RF/VC/FE/TE (ORG)
Offset values before RF (PI), VC, FE, TE signal offset adjustment
At offset 0
RF (8 bit data in hex notation)
RF: A0h
VC, FE, TE (9 bit data in hex notation)
VC, FE, TE: 00h
RF/VC/FE/TE (ADJ)
Offset values after RF (PI), VC, FE, TE signal offset adjustment
VC offset is not adjusted
(Less than ORG value if offset correction is normal)
(Measurement only)
RF (8 bit data in hex notation)
Also, for SACD, the TE offset is
VC, FE, TE (9 bit data in hex notation)
not measured and adjusted
PI/TRVS PP (ORG/ADJ)
PI (ORG): PI value at disc type check (decimal data)
PI level conversion
PI (ADJ): PI value after PI offset adjustment
Read value
× 12.9mV
(read value at microcomputer A/D) (decimal data)
TRVS PP (ORG): Traverse level before level correction (AGC)
Traverse level conversion
(decimal data)
Read value
× 12.9mV
TRVS PP (ADJ):Traverse level after level correction (AGC)
(decimal data)
12.9mV=3.3V
÷ 256 (8 bit)
PIOR/CCR/TRCR
PIOR: Set value of PI offset coarse adjusting register
Registers in RF amplifier
CCR: Set value of FE offset coarse adjusting register
TRCR: Set value of TE offset coarse adjusting register
TRCR: Set value of TE offset coarse adjusting register
FOCUS/TRK GAIN
Auto gain adjusted values of focus and tracking servos
Reference: 30h
(8 bit data in hex notation)
FBIAS/TRVSC/TRCR2/CFR
FBIAS: Focus bias set value (9 bit data in hex notation)
TRCR2 adjusts the E-F gain
TRVSC: Traverse center value (9 bit data in hex notation)
balance and used for CD only
TRCR2: Set value of E-F balance coarse adjusting register
(Fixed to 06 for SACD)
CFR: Set value of traverse level adjusting register
TRCR2 and CFR are registers in
RF amplifier
RF amplifier
MIN JITTER AT F.BIAS
Minimum jitter value in focus bias adjustment (CD only)
Correlative with RF jitter
READ TOC TIME (msec)
Time required for TOC reading
PSP AMPLITUDE
SACD only
1/3 SEEK TIME
Seek time between 1/3LBA and 2/3LBA of the disc
LBA: Absolute address
F) AVE/MIN/MAX (msec):
1/3LBAt2/3LBA average/minimum/maximum
R) AVE/MIN/MAX (msec):
2/3LBAt1/3LBA average/minimum/maximum
1/MAX SEEK TIME
Seek time between most inward track (0LBA) and most outward track max
LBA
LBA
F) AVE/MIN/MAX (msec):
most inwardtmost outward average/minimum/maximum
R) AVE/MIN/MAX (msec):
most outwartmost inward average/minimum/maximum
ERROR RATE
Error rate measurement
Measure for 10 sec at track No.5
For CD: Average value/Maximum value of C1 and C2
For the SACD, 160 block data
For SACD: Average value/Maximum value of PO, PI1 and PI2
except the data under tracking jump
l
L
l
L
l
L
l
L
l
L
l
L
l
L
l
L
Click on the first or last page to see other SCD-C555ES service manuals if exist.