ESAB ESP-600C - Page 98

SECTION 6 Troubleshooting
ESP 400C and 600C Plasma Power Sources
6-60
34001
3-12H
LOSS
IGBT SAT
-12V INDICATOR
SS CONTACTOR
.01
100K
P1-10
P1-09
P1-08
221
R84
LED3
R52
TP30
10K
221
R51
.01
TP28
TP29
C27
D13
IC08
P1-07
P1-06
P1-05
IC10
R49
Q7
R50
IC09
100K
1M
TP26
TP27
R86
-12H
C53
R85
100K
.01
C52
ANALOG
ISOLATOR
R47
Q6
TP25
1M
100K
R48
TP24
T
.01
1KV
R42
C54
#
R40
-15Z
P6-2
C31
1000
+
20V
SS CONTACTOR
20V
Z
COMPARATOR
+15Z
IC08
20K
R38
221
Z
R82
R83
Q3
.01
C21
ON
TP22
OFF
10K
P6-3
R59
2W
1.0
C32
.10
P6-1
1.0
2W
R60
H
1000
+
~
~
-
+
BR2
C28
.10
C33
TP31
4.7
C22
4.7
H
Q
D
R21
555
1
P1-02
P1-04
P1-03
P1-01
C06
.47
+15Z
C25
C24
R46
10
C26 .01
˜-0.5V
TP23
MAX
R43
10
1M
10K
R45
R44
9
15
2
.47
#
16
IC07
10
R35
10
8
7
#
.47
1
R39
R37
10
C19
.47
TP04
.01
˜+4.5VVMIN
5
2
C11
6
.0015C12
20K
#
R41
SET
8
11
IC03
4
VSS
7
SR
6
10
R19
CLOCK OSCILLATOR
IC02
20KHZ
TP03
3
7
48
3.32K
R20
10K
POT5
CW
CLK
13=OPEN
3
10
R
9
4013
12=OPEN
VDD
14
Q
1
C13
.47
R23
10
TP05
+15Z
C18
.0015
R36
680
1/2W
2N4401
D51
10K
R31
.47
C20
2
-
+
IC05
D10
TP16
D50
D11
TP13
6
499
R26
Q2
D12
Z
TP21
MAX ERROR
#
100K
R34
TP09
TP06
Z
CW
10K
#
POT4
+15Z
10K
TP20
R33
13
6
14
M57962L
IC06
8
C23
1
ZD7
5
4
TP32
IC10
R55
2.21K
2
D09
1
+15H
TP17
+15Z
TP12
C14
R22
IC04
2
2
1
+15Z
5
3
TP11
IC04
6
5
10
Z
7
.47
14
4
P2-1
P2-3
1K 10K
R87
TP19
1K
R24
+15Z
R29
P2-6P2-5
D08
TP18
8
IC04
9
10
C17
R32
221
560
PF
Z
10K
R25
1K
12
IC04
13
CW
POT1
+15Z
P2-4
P2-2
POT1˜3.32K
1
2
3
4
5
6
7
8
9
10
11
6.11 IGBT Driver Board (PCB2,3 – P/N 38030) Drawing 1 Part 1