Circuit diagram

1 2 34
A
B
C
D
4
321
D
C
B
A
C?
10U/16V
R?
47K
C?
330P
C?
680P
R?
47K
R?22K
R?2K2
C?
10U/16V
C?103
+5
R?10K
C?47U
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
1819
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
C?
M50195
C?
104
+5
C?10U
R?
470R
C?
104
C? 104
R?
22K
D? IN4148
+5
C?
380P
1
2
3
4
5
6
7
89
10
11
12
13
14
15
16
Q? 4164
+5
R?
10K
D?
4148
C?
47U/16V
C?104C?104
1
2
3
4
5
6
78
9
10
11
12
13
14
C?
74LS624
C?
20P
+5
R?
1K
C?
104
R?
103
1
2
3
4
5
IO1
1
2
3
4 5
6
7
8
R?
LM1 13N
1 2
R?
7805
+5
C?220U
+15V
ADJ
EFIN
DG
EFO
ECHO PART
21/04/04
LS-622A/822A/1222A
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