-
4
-
2. Main circuit diagram
1) WT315DI
Figure 4: Main Circuit Diagram for WT315DI
N6
N5
C
2
7
T2
L3
R1
D5
D3
F1
C
1
8
C
1
7
R7
R3
D2
D4
D1
C5
C3
C2
C1
N1
N3
N2
N4
C
1
0
C
1
4
C
2
5
C
2
3
R2
C6
C7
C
1
1
C9
C
1
3
C
1
5
L2
M1
9V
J8
(3
)
J8
(1
)
C6
C5
LM
E6
G6
E5
G5
E4
G4
E1
G1
E2
G2
M
ai
n
B
o
ar
d
D
riv
in
g
B
oa
rd
E6
E5
G6
G5
E1
E2
E3
E4
G1
G2
G3
G4
K1
L1
RE
D
P3(
1)
P3(
2)
P1(1)
P2(2)
P3(3)
O
U
T
1
O
U
T
2
T3
F1
F2
F1
F2
F3
D
is
pl
ay
er
B
oa
rd
J1
3
(2
)
J4
J3
(1
)
J3
(2
)
P
2
(4
)
P
2
(3
)
C
2
1
J1
6
B
)
1
9
V
C
3
0
C
2
9
J1
3(8
)
J7
(5
)
J7
(6
)
P
an
as
on
ic
6
-P
in
P
lu
g
J1
2(3
)
J1
2(2
)
J1
2(1
)
J1
1(1
)
J1
1(2
)
J1
1(3
)
J2
(1
)
J2
(3
)
J2
(2
)
J1
(1
)
J1
(3
)
J1
0
(1
)
H
F
B
O
X
A
C
/D
C
C
o
ns
ta
n
t/
P
u
ls
e
2
/4
S
te
p
J5
F
un
ct
io
n
S
el
ec
t
A
d
ju
st
c
od
er
J7
(3
)
J7
(4
)
G3
E3
R8
R6
R5
R4
+
C6
T
4
1
2
9
10
11
7
8
1
2
6
7
7
8
-
3
8
0
V
T5
1
3
4
1
2
C4
C8
C
1
2
C
2
8
2
3
4
5
6
JJ
1
(3
)
JJ
1
(5
)
JJ
1
(7
)
P
1
(1
)
P
1
(3
)
T
4
(7
)
C
2
2
12
13
14
J1
(1
)
J1
(3
)
15
16
2
2
V
2
2
V
12
13
3
4
9V
15
16
A
1
(1
)
T
5
(4
)
JI
0
(5
)
JI
0
(4
)
J1
0
(2
)
J1
0
(1
)
X
1
(1
)
X
1
(3
)
J7
(2
)
J7
(1
)
J1
0
(2
)
J1
0
(4
)
J1
0
(5
)
Wat
er
tap
(1
)
Wat
er
tap
(2
)
J7
(7
)
J7
(8
)
Gas
V
alv
e
T3
(5
)
F4
F3
R
1
2
P
re
se
t
C
od
er
R
1
1
C
2
0
P
(2
)
A
1
(3
)
J1
3
(9
)
J1
3(9
)
C
2
6
JJ
1
(1
)
+
S
te
p-
u
p
L
ef
t
R
ig
h
t
S
te
p-
u
p
J1
5
(B
)
C
3
1
J7
(1
)
J7
(2
)
X
1
(1
)
X
1
(3
)
R10 R9
C
1
9
C
1
6
C
3
2
C
2
4
J1
3(3
)
J1
3(4
)
J1
3(5
)
J1
3(6
)
IG
B
T
板
Th
erm
al
Rel
ay
J1
3(7
)
J1
3(2
)
J1
3(1
)
F4
J2
(4
)
G
as
V
a
lv
e
5
6
J7
(7
)
J1
3
(1
)
3
80
V
R
1
3
T1
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Содержание WT - 315 DI
Страница 14: ... 13 Constant current TIG Pulse TIG SMAW ...