GRAPHTEC CUTTING PRO FC2250-120ES, Service Manual

Page: 190 / 210

FC2250-UM-251-9370 11-2
11. BLOCK DIAGRAMS AND CIRCUIT DIAGRAMS
11.2 Key Relay Board (PR223281)
G
N
D
+
5V
K
E
Y
0
K
E
Y
1
K
E
Y
2
K
E
Y
3
K
E
Y
4
K
E
Y
5
K
E
Y
6
K
E
Y
7
G
N
D
P
A
S
L
E
D
G
N
D
P
M
T
L
E
D
G
N
D
P
A
U
S
E
Z
G
N
D
K
C
N
T
Z
0
G
N
D
K
C
N
T
Z
1
G
N
D
C
H
A
R
T
Z
G
N
D
C
H
D
L
E
D
G
N
D
G
N
D
+
5V
LC
D
B
0
LC
D
B
1
LC
D
B
2
LC
D
B
3
LC
D
B
4
LC
D
B
5
LC
D
B
6
34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
P
10
1
F
L1
F
L2
F
L3
F
L4
F
L5
F
L6
F
L7
F
R
C
5-
C
34
L5
3T
-O
L
D
S
S
30
6-
10
2M
D
S
S
30
6-
10
2M
D
S
S
30
6-
10
2M
D
S
S
30
6-
10
2M
D
S
S
30
6-
10
2M
D
S
S
30
6-
10
2M
D
S
S
30
6-
10
2M
+
5V
+
5V
+
5V
+
5V
D
1
1S
S
25
4T
-7
7
1S
S
25
4T
-7
7
D
2
R
1
43
0
R
4
C
1
22
4
R
2
R
3
43
0
P
12
IL
-S
-1
0P
-S
2T
2-
E
F
IL
-S
-4
P
-S
2T
2-
E
F
55
97
-1
8A
P
B
P
11
16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
+
5V
P
O
W
E
R
K
E
Y
0
K
E
Y
1
K
E
Y
2
K
E
Y
3
K
E
Y
4
K
E
Y
5
K
E
Y
6
K
E
Y
7
P
A
S
L
E
D
P
M
T
L
E
D
P
A
U
S
E
K
C
N
T
Z
0
K
C
N
T
Z
1
G
N
A
P
13
4 3 2 1
C
H
A
R
T
Z
G
N
D
C
H
A
R
T
L
E
D
-
C
H
A
R
T
L
E
D
+
1 2 3 4 5 6 7 8 9 10
G
N
D
+
5V
B
R
IG
H
T
LC
D
B
0
LC
D
B
1
LC
D
B
2
LC
D
B
3
LC
D
B
4
LC
D
B
5
LC
D
B
6
8.
2K
20
0
+
5V