SECTION 6
PCM-875A Plasmarc System
Troubleshooting
6-19
400V Console Schematic Part 2
V
P5-5
H2
H1
WORK
(-)
(+)
.047uf
PCB5
V
V
V
P1-3
P1-2
P1-6
V
P1-1
GND 5
C23
X2
TB2
X2
T3
X1
H2
660V
X1
SG
2500 PF,15KV
C13
T5
1
2
TORCH
2500 PF,15KV
H1
C14
PILOT
ARC
.022UF, 1KV
R13
L3
P.A.
K1
T3
K1
T2
K1
L2
T1
C21
C20
GND 3
L1
330K ,1W
.82UF 630VDC
250VAC
P2-
1
3
P2-
1
2
TB1-2
TB1-1
GND 4
C11
.01UF
1KV
C12
.01UF
1KV
C9
.01UF,250 VAC
V
115 VAC
V
K1
B
GND 2
A
V
V
V
P5-2
P5-1
P5-6
C17
.022UF
C18
250VAC
.022UF
PL2
-
+
1
J1
2
V
V
L3
SHIELD
4T
TORCH SWITCH
START SIGNAL
SIGNAL TO CNC
SIGNAL TO CNC
VOLTAGE DIVIDER
(CONTROL BOARD)
P/N-38109
PCB1
CO
NSO
L
ES 0558
003356
&
4
P1-12
V
V
V
V
V
V
P2-3
P2-2
P6-1
P6-2
P1-11
SOL1
75mA
2
60V
1
ZD1
2
1
2
NO
T US
E
D
O
N
0558003357
FS
1
3
S3
V
V
P6-
7
P6-
9
V
V
P2-4
P2-3
2
5
S2
6
1
3
(SEE CHART)
TB4
(-)
1
2
3
(+)
5
4
6
TB4-1
TB4-3
TB4-2
TB4-5
TB4-6
TB4-4
}
FROM CNC
}
ARC ON
}
1
2
3
