Sony MDS-JE530 Service Manual page 10

Reading the Retry Cause Display
Higher Bits
Hexadecimal
8 4 2 1
Bit
b7 b6 b5 b4 b3 b2 b1 b0
Binary
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 1
0 0 1 0
0 1 0 0
1 0 0 0
Reading the Display:
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".
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".
Hexadecimal n Binary Conversion Table
Hexadecimal Binary
0 0000
1 0001
2 0010
3 0011
4 0100
5 0101
6 0110
7 0111
Lower Bits
Hexa-
8 4 2 1
decimal
Emphasis OFF
0 0 0 1
01
0 0 1 0 Monaural
02
0 1 0 0
04 This is 2-bit display. Normally 01.
1 0 0 0 01:Normal audio. Others:Invalid
08
Audio (Normal)
0 0 0 0
10
Original
0 0 0 0
20
Copyright
0 0 0 0
40
Write prohibited
0 0 0 0
80
Hexadecimal Binary
8 1000
9 1001
A 1010
B 1011
C 1100
D 1101
E 1110
F 1111
When 0
– 10 –
Details
When 1
Emphasis ON
Stereo
Invalid
Digital copy
No copyright
Write allowed