Tv Code - Canon A-1 Repair Manual

TV CODE
Octal
Binary Code
Time
Grey Code
-
-
Code"
' 1 2 ;
I
,
~
,
V-
I
2 4 8 16
,
:
B
0
0 0 1
0
I
,
034
1 1
,
1
0
0 0
30'
0
0 1
1 0
04 U
0
0
I
0
,
1 0
,
0
,
1 5"
0 0
1 1
1
044
1 0
I
0
I
I 0
0
050
0 1 0 1 0
,
0 ,
054
1
I
1
,
0
I
1
0
0
8"
0 0 1 0 1
,
060
0 0 1 1
,
0 0
-
4"
0 0
1 0 0
064
1 0
I
1
,
1 0
0
070 0 1 1
,
1 0 0
2"
074
1
!
I
I
I • I
0 0
0 1 1 0
0
1 0 0
0 0
0 -,- 0
I 0
-
I"
0
1 1 0
1
1 0 4
1
o
I
0
!
0
,
1 0
1 1 0
0
1
i
0
0
,
1 , 0
-
2
0 1 I 1 1
1 I 4
1 I
,
0 0 I 0
1 2 0
,
0
0 1 0 1
!
0
,
4
0 1
1 ;
1 0
1 2 4
1
I
~
i
1 0 I 0
1 3 0 0
I
I 0 I 0
8 0
1
o :
1 0
I 34
1 1
I
I
0
I 0
0
,
0 0 I I 0
1 4 0
,
-
1 5
0
1 0
I
1 1
1 4 4
1
,
0 0 1 1 0
1 5 0
0 1
,
0 1 I
U
-
30 0
1 0
I
0
1
154
1
!
I
I
0 1 1 0
1 6 0
o
i
0 1 1 1 0
-
60
0 1 0
I
0
I
0
1 6 4 I 0 I I I 0
I
I 70
0 I 1 1 1
[)
,
-
1 2 5
1
o
!
0 0
1 7 4
& J
1 1 I I
' J
1 ,
200 0 0
0 0 I
,
- -- .
-
250
1
!
0 0
1
204
1
0
0 0 0
I
1
2 1 0
0
1 0 0
0 I
I
-
--
14
5 00
I I 0
1 I
2 I 4
I
220
,
224
-
,
1 000
1
i
1 0
,
1 0
!
I 230
1
,
1
1
,
1
i
0
,
P
I
I
-
I
•
-
--
,
2
3
4
5
i
6
!
T
•
B
TB 7 (55LC) : 0
* :
Lower octal code in each box is
code for preset shutter speed.
I
!
I
0
1
0 0
0
,
0 I 0 0
I 0 1 0
0
0
I
1 1
0 0
i
,
,
,
, ,
2
I
3 ~
5
6
,
,
T
•
B
SWit c h
Clo~e
o
SWit c h Open
CODES: All codes in this Repair Guide read
with
the least
significant digit on the le f t (T.B 0) and the most signi-
ficant digit (T.B 7 ) on the right. This is the order of
the oscilliscope a nd bus checker tool .
I
1
-
I
I
-
I