Sony MDS-W1 Service Manual ▷ View online
– 9 –
RETRY CAUSE DISPLAY MODE
• In this test mode, the causes for retry of the unit during recording can be displayed on the fluorescent indicator tube. 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.
For buttons or knobs not specified as (Deck A) or (Deck B) in the procedure, use that of the corresponding deck.
Precedure:
1. Load recordable discs (the contents will be erased) in both decks.
2. With the STOP state, press the DISPLAY button while pressing the p (Deck A) and MENU/NO (Deck A) buttons together.
3. Press the r REC button to start recording. Then press the P button and start recording.
4. To check the “track mode”, press the · button to start play.
5. To exit the test mode, press the DISPLAY button on the STOP state.
1. Load recordable discs (the contents will be erased) in both decks.
2. With the STOP state, press the DISPLAY button while pressing the p (Deck A) and MENU/NO (Deck A) buttons together.
3. Press the r REC button to start recording. Then press the P button and start recording.
4. To check the “track mode”, press the · button to start play.
5. To exit the test mode, press the DISPLAY button on the STOP state.
If the test mode cannot be exited, refer to “Forced Reset” on page 8.
Note:
Rotating the AMS knob during STOP will display as shown in Fig. 3. This is however not used in servicing.
Fig. 1 Reading the Test Mode Display
} Address (Physical address on disc)
(During recording and stop)
Fluorescent display tube display
@@ : Cause of retry
##
##
: Number of retries
**
: Number of retry errors
Fig. 2 Reading the Test Mode Display
(During playback)
(During playback)
Fluorescent display tube display
@@ : Parts No. (name of area named on TOC)
##
##
: Cluster
**
: Sector
$$
: Track mode (Track information such as copyright
information of each part)
Fig. 3. (This display is not used in servicing.)
@@/@@/@@
maker : @@
model : @@
maker : @@
model : @@
Fluorescent display tube display
@@ : Any number
– 10 –
Hexadecimal
Bit
Binary
Higher Bits
Lower Bits
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
Details
01
02
04
08
10
20
40
80
Emphasis OFF
Monaural
This is 2-bit display. Normally 01.
01:Normal audio. Others:Invalid
Audio (Normal)
Original
Copyright
Write prohibited
When 0
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 n b7
Lower bit : 4 = 0100 n 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 exists”, and “write allowed”.
Higher bit : 8 = 1000 n b7
Lower bit : 4 = 0100 n 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 exists”, and “write allowed”.
Example
When 07 is displayed:
Higher bit : 0 = 1000 n All 0
Lower bit : 7 = 0111 n 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 exists”, and “write prohibited”.
Higher bit : 0 = 1000 n All 0
Lower bit : 7 = 0111 n 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 exists”, and “write prohibited”.
Hexadecimal
n
Binary Conversion Table
Hexadecimal
Binary
Hexadecimal
Binary
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
Reading the Track Mode Display
Hexadecimal
Bit
Binary
Higher Bits
Lower Bits
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
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
Hexa-
decimal
shock
ader5
Discontinuous address
DIN unlock
FCS incorrect
IVR rec error
CLV unlock
Access fault
Cause of Retry
Occurring conditions
01
02
04
08
10
20
40
80
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 n b6
Lower bit : 2 = 0010 n b1
In this case, the retry cause is combined of “CLV unlock” and “ader5”.
Higher bit : 4 = 0100 n b6
Lower bit : 2 = 0010 n b1
In this case, the retry cause is combined of “CLV unlock” and “ader5”.
When A2 is displayed:
Higher bit : A = 1010 n b7+b5
Lower bit : 2 = 0010 n b2
The retry cause in this case is combined of “access fault”, “IVR rec error”, and “ader5”.
Higher bit : A = 1010 n b7+b5
Lower bit : 2 = 0010 n b2
The retry cause in this case is combined of “access fault”, “IVR rec error”, and “ader5”.
Reading the Retry Cause Display
– 11 –
Location of Parts and Controls
1
OUTPUT button and A. B indicator
2
STANDBY indicator
3
1/u (Power) button
4
Remote sensor
5
§ EJECT (Deck A) button
6
DISK compartment (Deck A)
7
RELAY button and indicator
8
MD SYNC button and indicator
9
DISK compartment (Deck B)
10
§ EJECT (Deck B) button
11
0, ) (Deck B) button
12
r REC (Deck B) button
13
p (STOP) (Deck B) button
14
P (PAUSE) (Deck B) button
15
· (PLAY) (Deck B) button
16
YES (Deck B) button
17
≠ AMS ± (PUSH ENTER) (Deck B) knob
18
MENU/NO (Deck B) button
19
CLEAR (Deck B) button
SECTION 2
GENERAL
Front Panel
2
4
6
7
8
9
10
11
1
3
5
12
13
18
19
20
14
15
16
17
24
25
26
21
22
23
27
28
29
31
32
33
30
34
35
36
37
20
B TIME/CHAR button
21
B INPUT button
22
TIMER button
23
Display window
24
DISPLAY button
25
A INPUT button
26
A TIME/CHAR button
27
CLEAR (Deck A) button
28
YES (Deck A) button
29
≠ AMS ± (PUSH ENTER) (Deck A) knob
30
MENU/NO (Deck A) button
31
p (STOP) (Deck A) button
32
r REC (Deck A) button
33
P (PAUSE) (Deck A) button
34
· (PLAY) (Deck A) button
35
0, ) (Deck A) button
36
PHONES jack
37
PHONE LEVEL knob
* AMS is the abbreviation for Automatic Music Sensor.
– 12 –
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xtracted from
instr
uction man
ual.
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