Sony MDS-S9 Service Manual ▷ View online
16
MDS-S9
4-5.
SELECTING THE TEST MODE
There are 26 types of test modes as shown below. The groups can be switched by turning the
[ AMS ]
knob. After selecting the
group to be used, press the
[YES]
button. After setting a certain group, turning the
[ AMS ]
knob switches modes shown below.
Refer to “Group” in the table for details can be selected.
All items used for servicing can be treated using group [Service]. So be carefully not to enter other groups by mistake.
All items used for servicing can be treated using group [Service]. So be carefully not to enter other groups by mistake.
Note:
Do not use the test mode in the [Develop] group.
If used, the unit may not operate normally.
If the [Develop] group is set accidentally, press the
If used, the unit may not operate normally.
If the [Develop] group is set accidentally, press the
[MENU/NO]
button immediately to exit the [Develop] group.
• For details of each adjustment mode, refer to “5. Electrical Adjustments”.
For details of “Err Display”, refer to “Self-Diagnosis Function” on page 2.
• If a different mode has been selected by mistake, press the
[MENU/NO]
button to release that mode.
• Modes with (
×
) in the Mark column are not used for servicing and therefore are not described in detail. If these modes are set acciden-
tally, press the
[MENU/NO]
button to release the mode immediately.
Display
AUTO CHECK
Err Display
TEMP ADJUST
LDPWR ADJUST
Iop Write
Iop NV Save
EF MO ADJUST
EF CD ADJUST
FBIAS ADJUST
AG Set (MO)
AG Set (CD)
TEMP CHECK
LDPWR CHECK
EF MO CHECK
EF CD CHECK
FBIAS CHECK
ScurveCHECK
VERIFYMODE
DETRK CHECK
0920 CHECK
Iop Read
Iop Compare
ADJ CLEAR
INFORMATION
CPLAY1MODE
CREC 1MODE
Details
Automatic self-diagnosis
Error history display, clear
Temperature compensation offset adjustment
Laser power adjustment
Iop data writing
Writes current Iop value in read nonvolatile memory using microprocessor
Traverse (MO) adjustment
Traverse (CD) adjustment
Focus bias adjustment
Auto gain output level adjustment (MO)
Auto gain output level adjustment (CD)
Temperature compensation offset check
Laser power check
Traverse (MO) check
Traverse (CD) check
Focus bias check
S-curve check
Nonvolatile memory check
Detrack check
Most circumference check
Iop data display
Comparison with initial Iop value written in nonvolatile memory
Initialization of nonvolatile memory for adjustment values
Display of microprocessor version, etc.
Continuous playback mode
Continuous recording mode
No.
C01
C02
C03
C04
C05
C06
C07
C08
C09
C10
C11
C12
C13
C14
C15
C16
C17
C18
C19
C25
C26
C27
C28
C31
C34
C35
Mark
Group
Check
Service
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17
MDS-S9
4-5-1. Operating the Continuous Playback Mode
1. Entering the continuous playback mode
(1)
(1)
Set the disc in the unit. (Whichever recordable discs or discs for playback only are available)
(2)
Turn the
[ AMS ]
knob to display “CPLAY1MODE” (C34).
(3)
Press the
[YES]
button to change the display to “CPLAY1MID”.
(4)
When access completes, the display changes to “C =
AD =
)”.
Note:
The numbers “ ” displayed show you error rates and ADER.
2. Changing the parts to be played back
(1)
(1)
Press the
[YES]
button during continuous playback to change the display as below.
When pressed another time, the parts to be played back can be moved.
(2)
When access completes, the display changes to “C =
AD =
)”.
Note:
The numbers “ ” displayed show you error rates and ADER.
3. Ending the continuous playback mode
(1)
(1)
Press the
[MENU/NO]
button. The display will change to “CPLAY1MODE” (C34).
(2)
Press the
Z
button and take out the disc.
Note:
The playback start addresses for IN, MID, and OUT are as follows.
IN
: 40h cluster
MID : 300h cluster
OUT : 700h cluster
OUT : 700h cluster
4-5-2. Operating the Continuous Recording Mode (Use only when performing self-recording/palyback check)
1. Entering the continuous recording mode
(1)
(1)
Set a recordable disc in the unit.
(2)
Turn the
[ AMS ]
knob to display “CREC 1MODE” (C35).
(3)
Press the
[YES]
button to change the display to “CREC 1MID”.
(4)
When access completes, the display changes to “CREC 1(
)” and “
REC
” lights up.
Note:
The numbers “ ” displayed shows you the recording position addresses.
2. Changing the parts to be recorded
(1)
(1)
When the
[YES]
button is pressed during continuous recording, the display changes as below.
When pressed another time, the parts to be recorded can be changed. “
REC
” goes off.
(2)
When access completes, the display changes to “CREC 1(
)” and “
REC
” lights up.
Note:
The numbers “ ” displayed shows you the recording position addresses.
3. Ending the continuous recording mode
(1)
(1)
Press the
[MENU/NO]
button. The display changes to “CREC 1MODE” (C35) and “
REC
” goes off.
(2)
Press the
Z
button and take out the disc.
Note 1:
The recording start addresses for IN, MID, and OUT are as follows.
IN
: 40h cluster
MID : 300h cluster
OUT : 700h cluster
OUT : 700h cluster
Note 2:
The
[MENU/NO]
button can be used to stop recording anytime.
Note 3:
Do not perform continuous recording for long periods of time above 5 minutes.
Note 4:
During continuous recording, be careful not to apply vibration.
4-6.
FUNCTIONS OF OTHER BUTTONS
Function
u
x
M
m
REC MODE
PLAY MODE
LEVEL/DISPLAY/CHAR
Z
I/1
“CPLAY1MID” t “CPLAY1OUT” t “CPLAY1IN”
“CREC 1MID” t “CREC 1OUT” t “CREC 1IN”
Contents
Sets continuous playback when pressed in the STOP state. When pressed during continuous playback,
the tracking servo turns ON/OFF
the tracking servo turns ON/OFF
Stops continuous playback and continuous recording
The sled moves to the outer circumference only when this is pressed
The sled moves to the inner circumference only when this is pressed
Switches between the pit and groove modes when pressed
Switches the spindle servo mode (CLV S y CLV A)
Switches the displayed contents each time the button is pressed
Ejects the disc
Releases the test mode
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18
MDS-S9
Contents
4-7.
TEST MODE DISPLAYS
Each time the
[LEVEL/DISPLAY/CHAR]
button is pressed, the display changes in the following order.
When CPLAY or CREC are started, the display will forcibly be switched to the error rate display as the initial mode.
1. Mode display
Displays “TEMP ADJUST” (C03), “CPLAY1MODE” (C34), etc.
Displays “TEMP ADJUST” (C03), “CPLAY1MODE” (C34), etc.
2. Error rate display
Displays the error rate in the following way.
Displays the error rate in the following way.
C =
AD =
)
C = : Indicates the C1 error.
AD = : Indicates ADER.
AD = : Indicates ADER.
3. Address display
The address is displayed as follows. (MO: recordable disc, CD: playback only disc)
h =
The address is displayed as follows. (MO: recordable disc, CD: playback only disc)
h =
s =
(MO pit and CD)
h =
a =
(MO groove)
h = : Indicates the header address.
s = : Indicates the SUBQ address.
a = : Indicates the ADIP address.
s = : Indicates the SUBQ address.
a = : Indicates the ADIP address.
Note:
“–” is displayed when the address cannot be read.
MEANINGS OF OTHER DISPLAYS
Mode display
Error rate display
Address display
Auto gain display
(Not used in servicing)
Detrack check display
(Not used in servicing)
IVR display
(Not used in servicing)
C1 error and jitter display
(Not used in servicing)
AD error and jitter display
(Not used in servicing)
Servo OFF
Tracking servo ON
Recording mode OFF
CLV normal mode
Tracking offset cancel OFF
Groove
Low reflection
CLV A
CLV UNLOCK
When Off
Display
When Lit
Servo ON
Tracking servo OFF
Recording mode ON
CLV low speed mode
ABCD adjustment completed
Tracking offset cancel ON
Tracking auto gain OK
Focus auto gain OK
Pit
High reflection
CLV S
CLV LOCK
N
X
REC
SYNC
L. SYNC
OVER
B/1
A-/REP
TRACK/LP4
DISC/LP2
SHUF/SLEEP
MONO
19
MDS-S9
4-8.
AUTOMATIC SELF-DIAGNOSIS FUNCTION
This test mode performs CREC and CPLAY automatically for mainly checking the characteristics of the optical pick-up.
To perform this test mode, the laser power must first be checked.
Perform AUTO CHECK after the laser power check and Iop Compare.
To perform this test mode, the laser power must first be checked.
Perform AUTO CHECK after the laser power check and Iop Compare.
Procedure:
1. Turn the
1. Turn the
[ AMS ]
knob to display “AUTO CHECK” (C01).
2. Press the
[YES]
button. If “LDPWR
” is displayed, it means that the laser power check has not been performed. In this case,
perform the laser power check and Iop Compare, and then repeat from enter the test mode.
3. If a disc is in the mechanical deck, it will be ejected forcibly.
“DISC IN” will be displayed in this case. Load a test disc (MDW-74/GA-1) which can be recorded.
4. If a disc is loaded at step 3, the check will start automatically.
5. When “XX CHECK” is displayed, the item corresponding to XX will be performed.
5. When “XX CHECK” is displayed, the item corresponding to XX will be performed.
When “06 CHECK” completes, the disc loaded at step 3 will be ejected. “DISC IN” will be displayed. Load the check disc (TDYS-1).
6. When the disc is loaded in step 5, the check will automatically be resumed from “07 CHECK”.
7. After completing to test item 12, check OK or NG will be displayed. If all items are OK, “CHECK ALL OK” will be displayed. If any item
7. After completing to test item 12, check OK or NG will be displayed. If all items are OK, “CHECK ALL OK” will be displayed. If any item
is NG, it will be displayed as “NG:xxxx”.
When “CHECK ALL OK” is displayed, it means that the optical pick-up is normal. Check the operations of other parts (spindle motor,
sled motor, etc.).
When displayed as “NG:xxxx”, it means that the optical pick-up is faulty. In this case, replace the optical pick-up.
sled motor, etc.).
When displayed as “NG:xxxx”, it means that the optical pick-up is faulty. In this case, replace the optical pick-up.
4-9.
INFORMATION
Display the software version.
Procedure:
1. Turn the
1. Turn the
[ AMS ]
knob to display “INFORMATION” (C31).
2. Press the
[YES]
button.
3. The software version will be displayed.
4. Press the
4. Press the
[MENU/NO]
button to end this mode.
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