Sony CMT-PX333 / HCD-PX333 Service Manual ▷ View online
11
HCD-PX333
CHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTS IN MD
Before performing repairs, perform the following checks to determine the faulty locations up to a certain extent.
Details of the procedures are described in “5 Electrical Adjustments”.
Details of the procedures are described in “5 Electrical Adjustments”.
• 0.9 mW power
Specified value : figure1
• 8.4 mW power
Specified value : figure2
Iop (at 8.4mW)
• Labeled on the optical pick-up
Iop value
± 10mA
• Traverse waveform
Specified value : Below 10% offset
• Error rate check
Specified value : For points A and B
C1 error : About 200
AD error : below 2
For point C
C1 error: 20
AD error: below 2
C1 error : About 200
AD error : below 2
For point C
C1 error: 20
AD error: below 2
• Error rate check
Specified value:
a.
a.
When using test disc (MDW-74/GA-1)
C1 error : Below 20
AD error : 00
C1 error : Below 20
AD error : 00
b.
When using check disc (TDYS-1)
C1 error : Below 20
C1 error : Below 20
• CPLAY error rate check
Specified value:
C1 error : Below 20
AD error : Below 2
C1 error : Below 20
AD error : Below 2
• Unsatisfactory if displayed as T=@@ (##) [NG]”
NG
(@@, ## are both arbitrary numbers)
(@@, ## are both arbitrary numbers)
Laser power check
(6-2 : See page 40)
(6-2 : See page 40)
Traverse check
(6-6 : See page 41)
(6-6 : See page 41)
Focus bias check
(6-7 : See page 42)
(6-7 : See page 42)
C PLAY check
(6-8 : See page 42)
(6-8 : See page 42)
Self-recording/playback
check
(6-9 : See page 42)
check
(6-9 : See page 42)
Temperature
compensation
offset check
(6-1 : See page 40)
compensation
offset check
(6-1 : See page 40)
Criteria for Determination
(Unsatisfactory if specified value is not satisfied)
• Clean the optical pick-up
• Adjust again
• Replace the optical pick-up
• Adjust again
• Replace the optical pick-up
• Replace the optical pick-up
• Replace the optical pick-up
• Replace the optical pick-up
• Replace the optical pick-up
If always unsatisfactory:
• Replace the overwrite head
• Check for disconnection of the circuits around the
• Replace the overwrite head
• Check for disconnection of the circuits around the
overwrite head
If occasionally unsatisfactory:
• Check if the overwrite head is distorted
• Check the mechanism around the sled
• Check if the overwrite head is distorted
• Check the mechanism around the sled
• Check for disconnection of the circuits around
D101 (BD (MD) board)
• Check the signals around IC101, IC151, CN102,
CN103 (BD (MD) board)
Measure if unsatisfactory
Note:
The criteria for determination above is intended merely to determine if satisfactory or not, and does not serve as the specified value for adjustments.
When performing adjustments, use the specified values for adjustments.
When performing adjustments, use the specified values for adjustments.
Figure1:
SPECIFIED VALUE
KMS-262A
KMS-262E
0.84 to 0.92 mW
0.90 to 0.96 mW
0.90 to 0.96 mW
Figure2:
SPECIFIED VALUE
KMS-262A
KMS-262E
8.1 to 8.7 mW
8.4 to 8.9 mW
8.4 to 8.9 mW
12
HCD-PX333
RETRY CAUSE DISPLAY MODE IN MD
• In this test mode, the causes for retry of the unit during recording can be displayed on the liquid crystal display. During playback, the
“track mode” for obtaining track information will be set.
This is useful for locating the faulty part of the unit.
This is useful for locating the faulty part of the unit.
• The following will be displayed :
During recording and stop : Retry cause, number of retries, and number of retry errors.
During playback
During playback
: Information such as type of disc played, part played, copyright.
These are displayed in hexadecimal.
Precedure:
1. Load a recordable disc whose contents can be erased into the unit.
2. Press the
1. Load a recordable disc whose contents can be erased into the unit.
2. Press the
MENU/NO “R”
button. When “Edit Menu” is displayed on the liquid crystal display, press the
.
“R”
or
>
“R”
button to display “All Erase?”.
3. Press the
ENTER/YES “R”
button.
4. When “All Erase??” is displayed on the liquid crystal display, the music calendar number blinks.
5. Press the
5. Press the
ENTER/YES “R”
button to display “Complete!”.
6. Press the
[REC/REC IT]
button to start recording. Then press the
[ MD]
button and start recording. If recording cannot be performed, press
the
[FUNCTION]
button and set a different function.
7. Press three buttons of
. m
,
[PLAY MODE TUNING MODE]
and
[ MD]
simultaneously to enter the retry cause display mode.
8. To check the “track mode”, press the
[ MD]
button to start playback.
9. To release this mode, press the
I/1
button to turn the power off. When “TOC” goes off, disconnect the power plug from the outlet.
If the test mode cannot be released, refer to “MC COLD RESET” on page 31.
Fig. 1 Reading the Test Mode Display
(During recording and stop)
RTs@@c##e
**
Liquid crystal display
@@ : Cause of retry
##
##
: Number of retries
**
: Number of retry errors
Fig. 2 Reading the Test Mode Display
(During playback)
@@ ###
**
$$
Liquid crystal display
@@ : Parts No. (name of area named on TOC)
##
##
: Cluster
**
: Sector
$$
: Track mode (Track information such as
copyright information of each part)
Reading the Retry Cause Display
8
4
2
1
8
4
2
1
b7 b6 b5 b4 b3 b2 b1 b0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
0
Hexa-
decimal
01
02
04
08
10
20
40
80
08
10
20
40
80
Higher Bits
Hexadecimal
Bit
Binary
shock
ader5
Discontinuous address
DIN unlock
FCS incorrect
IVR rec error
CLV unlock
Access fault
DIN unlock
FCS incorrect
IVR rec error
CLV unlock
Access fault
Occurring conditions
When track jump (shock) is detected
When ADER was counted more than five times
continuously
When ADIP address is not continuous
When DIN unlock is detected
When not in focus
When ABCD signal level exceeds the specified range
When CLV is unlocked
When access operation is not performed normally
When ADER was counted more than five times
continuously
When ADIP address is not continuous
When DIN unlock is detected
When not in focus
When ABCD signal level exceeds the specified range
When CLV is unlocked
When access operation is not performed normally
Reading the Display:
Convert the hexadecimal display into binary display. If more than two causes, they will be added.
Convert the hexadecimal display into binary display. If more than two causes, they will be added.
Example
When 42 is displayed:
Higher bit : 4 = 0100 t b6
Lower bit : 2 = 0010 t b1
In this case, the retry cause is combined of “CLV unlock” and “ader5”.
Lower bit : 2 = 0010 t b1
In this case, the retry cause is combined of “CLV unlock” and “ader5”.
When A2 is displayed:
Higher bit : A = 1010 t b7 + b5
Lower bit : 2 = 0010 t b1
Higher bit : A = 1010 t b7 + b5
Lower bit : 2 = 0010 t b1
The retry cause in this case is combined of “Access fault”, “IVR rec error”, and “ader5”.
Address
N X
N X
N X
Cause of Retry
Lower Bits
13
HCD-PX333
Reading the Retry Cause Display
8
4
2
1
8
4
2
1
b7 b6 b5 b4 b3 b2 b1 b0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
0
01
02
04
08
10
20
40
80
Higher Bits
Lower Bits
Hexadecimal
Bit
Binary
When 0
Emphasis OFF
Monaural
This is 2-bit display. Normally 01.
01:Normal audio. Others:Invalid
01:Normal audio. Others:Invalid
Audio (Normal)
Original
Copyright
Write prohibited
When 1
Emphasis ON
Stereo
Invalid
Digital copy
No copyright
Write allowed
Reading the Display:
Convert the hexadecimal display into binary display. If more than two causes, they will be added.
Convert the hexadecimal display into binary display. If more than two causes, they will be added.
Example When 84 is displayed:
Higher bit : 8 = 1000 t b7
Lower bit : 4 = 0100 t b2
In this case, as b2 and b7 are 1 and others are 0, it can be determined that the retry cause is combined of “Emphasis OFF”, “Monaural”,
“Original”, “Copyright”, and “Write allowed”.
Lower bit : 4 = 0100 t b2
In this case, as b2 and b7 are 1 and others are 0, it can be determined that the retry cause is combined of “Emphasis OFF”, “Monaural”,
“Original”, “Copyright”, and “Write allowed”.
Example When 07 is displayed:
Higher bit : 0 = 0000 t All 0
Lower bit : 7 = 0111 t b0 + b1 + b2
In this case, as b0, b1, and b2 are 1 and others are 0, it can be determined that the retry cause is combined of “Emphasis ON”, “Stereo”,
“Original”, “Copyright”, and “Write prohibited”.
Lower bit : 7 = 0111 t b0 + b1 + b2
In this case, as b0, b1, and b2 are 1 and others are 0, it can be determined that the retry cause is combined of “Emphasis ON”, “Stereo”,
“Original”, “Copyright”, and “Write prohibited”.
Hexadecimal
t
Binary Conversion Table
Hexadecimal
Binary
Hexadecimal
Binary
0
0000
8
1000
1
0001
9
1001
2
0010
A
1010
3
0011
B
1011
4
0100
C
1100
5
0101
D
1101
6
0110
E
1110
7
0111
F
1111
Details
Hexa-
decimal
14
HCD-PX333
CD SECTION
CD AGING MODE
Procedure:
1. Press the
1. Press the
?
/1
button to turn the power on.
2. Press the
[FUNCTION]
button to set the CD function, and press the Z (CD) button to insert a disc.
3. Press three buttons of
x
(CD) ,
[ TUNING-]
and
x
(MD) simultaneously.
4. The set displays “AGING SEL=00”. Between it is displayed, press the Z (CD) button to start CD aging mode.
5. The sequence during the CD aging mode is following as below.
5. The sequence during the CD aging mode is following as below.
Note: If the triple button pressing failed to activate the CD test mode, press the
[ TUNING-]
button, and the x (MD) button in this
order while pressing the x (CD) button. Also, release the x (MD),
[ TUNING-]
and x (CD) buttons in this order, when
releasing the buttons.
CD aging mode sequence:
6. To release from this mode, press the
?
/1
button to turn the power off.
Note:
Refer to “Error History Display Mode” (page 5) for display at an error occurred.
CD disk tray open
CD disc tray close
TOC read
Playback track 1
Playback last track
Display aging number
.m
.m
.m
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