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A4
QA6
B12
QB11
C13
QC14
D3
QD2
CI5
CO7
CLK15
PE1
B/D9
U/D10
U3
4029
X013
X114
X215
X312
X41
X55
X62
X74
A11
B10
C9
INH6
X3
U2
4051
?
0
1
0
+9VCC
R1
2k2
R2
2k2
R3
2k2
VI1
VO3
G
N
D
2
U17809
+9VCC+18VCC
C110uF
C2100nF
0
R4
6k8
C4
47uF
C3100nF
R5
2k2
D1LED
D2LED