Sony MDS-PC1, Руководство по обслуживанию

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Reading the Display:
Convert the hexadecimal display into the binary display. If more than two causes, they will be added.
Example
When 44 is displayed:
Upper bit : 4=0100
n
b6
Lower bit : 4=0010 n b2
In this case, the retry cause is combined of “CVL unlock” and “ader5”.
When A4 is displayed:
Upper bit : A=1010
n
b7+b5
Lower bit : 4=0010 n b2
The retry cause in this case is combined of “access fault”, “IVR rec error”, and “ader5”.
Reading the Track Mode Display
Reading the Display:
Convert the hexadecimal display into the binary display. Several cause are added and displayed.
Example
When 84 is displayed:
Upper bit : 8=1000
n
b7
Lower bit : 4=0100 n b2
In this case, as b2 and b7 are 1 and others are 0, the cause is combined of “Emphasis OFF”, “Monaural”, “Original”, Copyrighted” and
“Write permitted”.
When 07 is displayed:
Upper bit : 0=0000
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, the cause is combined of “Emphasis ON”, “Stereo”, “Original”, Copyrighted” and
“Write prohibited”.
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
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
Hexadecimal/Decimal Conversion Table