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6-2
5
FE Board Circuit Diagram:VFD
D
C
CN1
CN1
1
1
2
2
3
3
4
4
B
A
5
4
R1
R1
470
470
+5V
Q2
Q2
R4
R4
R5
R5
3DG3904M
3DG3904M
10K
10K
470
470
Q3
Q3
3DG3904M
3DG3904M
C3
C3
0.1uF
0.1uF
R11
R11
18K
18K
R12
R12
4.7K
4.7K
Q4
Q4
Q5
Q5
3DG3904M
3DG3904M
Q6
Q6
R16
R16
R17
R17
3CG3906M
3CG3906M
3DG3904M
3DG3904M
1K
1K
10K
10K
C7
C7
R18
R18
1000pF
1000pF
1K
1K
-24V
+5V
+12V
CN2
CN2
CLK
1
1
2
STB
2
KEY4
3
3
4
DATA
4
K1
5
5
6
COMMON
6
K3
7
7
K2
8
8
4
3
VFD1
VFD1
VFD
VFD
C2
C2
1000pF
1000pF
2.2
2.2
R3
R3
AC2
330
330
470
470
R8
R8
R10
R10
2.2
2.2
C15
C15
R9
R9
AC1
1uF/50V/Y5V
1uF/50V/Y5V
C20
C20
1uF/50V/Y5V
1uF/50V/Y5V
R14
R14
10K
10K
-24V
-24V
34
G4
35
G3
36
G2
SEG6/K6
37
G1
SEG5/K5
+5V
38
VDD
SEG4/K4
39
CS16312
CS16312
LED4
SEG3/K3
40
LED3
U2
U2
SEG2/K2
R21
R21
41
LED2
SEG1/K1
42
51K
51K
LED1
43
GND
44
OSC
K3
R56
R56
10K
10K
K2
R55
R55
10K
10K
K1
R53
R53
10K
10K
COMMON
R54
R54
10K
10K
STB
R44
R44
33
33
CLK
R45
R45
33
33
DATA
R46
R46
33
33
3
6-2
2
AC2
C4
C4
1000pF
1000pF
22
SEG8
21
SEG7
20
19
18
17
16
15
14
VDD
+5V
R58
R58
2.2K
2.2K
KEY4
13
KEY4
12
KEY3
2
1
D
C
B
A
1
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