Schematic diagram & pcb, Velleman – Velleman projects K6400 Assembly instructions User Manual
Page 11

11
Schematic diagram (Control section)
Schematic diagram & PCB
R5
T1
RY1
D1
LD1
R11
+V
+V
NO
NC
COM
R10
+V
R1
C1
ES1
R2
ES2
D2
D3
ES3
R3
D4
ES4
R4
T2
R8
1
2
3
4
5
6
7
8
9
R6
V
GND
D5
C2
+V
NOT USED
CODE A
CODE B
CODE C
CODE D
CODE ABCD
R9
R7
J1
PCB
VELLEMAN
LD1
SW3
SW6
SW9
SW 2
SW 5
SW 8
SW 1
SW 4
SW 7
P6400S'1
L
+
D
C
B
A
N
N
A
B
D
C
R8
R9
R1
1
D1
IC1
1
R10
D4
T2
R7
R6
C1
R2
R3
R4
D3
D2
R1
R5
T1
D5
C2
RY1
J2
OUT
V GND
J
A
B
C
D
+
L
N
C
C
C
J1
NC
NO
V
E
LLE
M
A
N
P
6400B
'1