Sony CMT-PX333 / HCD-PX333 Service Manual ▷ View online
33
HCD-PX333
5. SELECTING THE TEST MODE
There are 26 types of test modes as shown below. The groups can be switched by pressing the
.
“R”
or
>
“R”
button. After selecting
the group to be used, press the
ENTER/YES “R”
button. After setting a certain group, pressing the
.
“R”
or
>
“R”
button 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.
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.
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 “R”
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 “R”
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 “R”
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
CPLAY2MODE
CREC 2MODE
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
C36
C37
Mark
Group
Check
Service
34
HCD-PX333
Function
N X MD
x (MD)
M
“R”
m
“R”
CD SYNC HIGH
PLAY MODE
CD SYNC HIGH (*1)
MD Z
REPEAT STEREO/MONO
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)
Press the
.
“R”
or
>
“R”
button to display “CPLAY2MODE” (C36).
(3)
Press the
ENTER/YES “R”
button to change the display to “CPLAY2MID”.
(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
ENTER/YES “R”
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 “R”
button. The display will change to “CPLAY2MODE” (C36).
(2)
Press the Z (MD) 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
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)
Press the
.
“R”
or
>
“R”
button to display “CREC 2MODE” (C37).
(3)
Press the
ENTER/YES “R”
button to change the display to “CREC 2MID”.
(4)
When access completes, the display changes to “CREC 2(
” 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
ENTER/YES “R”
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 2(
” 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 “R”
button. The display changes to “CREC 2MODE” (C37) and “
REC
” goes off.
(2)
Press the Z (MD) 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
Note 2:
The
MENU/NO “R”
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.
6. FUNCTIONS OF OTHER BUTTONS
“CPLAY2MID” t “CPLAY2OUT” t “CPLAY2IN”
“CREC 2MID” t “CREC 2OUT” t “CREC 2IN”
Contents
Sets continuous playback when this is pressed in the STOP state. When this is pressed during continu-
ous playback, playback position moves.
ous playback, playback position moves.
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
*1) Press the
[CD SYNC NORMAL]
button to light up “IT” indicator, then press the
[CD SYNC HIGH]
button.
35
HCD-PX333
Contents
7. TEST MODE DISPLAYS
Each time the
[CD SYNC HIGH]
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), “CPLAY2MODE” (C36), etc.
Displays “TEMP ADJUST” (C03), “CPLAY2MODE” (C36), 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 servo is not imposed.
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
2
4
REC
SYNC, TRACK
L.SYNC
PROGRAM
TOC
REPEAT
SF EDIT
DISC
NORM
MONO
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
36
HCD-PX333
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. Press the
1. Press the
.
“R”
or
>
“R”
button to display “AUTO CHECK” (C01).
2. Press the
ENTER/YES “R”
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 MD 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.
9. INFORMATION
Display the software version.
Procedure:
1. Press the
1. Press the
.
“R”
or
>
“R”
button to display “INFORMATION” (C31).
2. Press the
ENTER/YES “R”
button.
3. The software version will be displayed.
4. Press the
4. Press the
MENU/NO “R”
button to end this mode.
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