ESAB ESP-600C - Page 99

SECTION 6 Troubleshooting
ESP 400C and 600C Plasma Power Sources
6-61
TP15
R05
IN
D15
IN
D19
10
#
ZD4
Q8
TP34
C30
1000
D17
7912
REG4
H
OUT
D18
LEAVE OFF BOARD#
LED5
+
R54
3.32K
-12H
10K
R58
IGBT 3
TP33
1000
C29
REG3
7815
D16
OUT
D14
3.32K
+
LED4
R53
R56
2
1
IC09
1K
E
E
#
2.2
1W
R07
#
2.2
1W
630V
.033
C51
R06
ZD6
ZD5
G
E
E
ZD3
R57
15K
+15H
R15
C03
IGBT 2
IGBT 1
2.2
1W
ZD2
Q4
#
R03
2.2
2.2
#
1W
1W
R04
D20
1W
Q5
G
P3-1
E
E
ZD1
TP01
2.2
R02
#
1
W
R01
˜+1.25V
.10
G
RAMP
˜-5.OV
v
t
POWER CONNECTIONS FOR IC1
R14
4
10
-15Z
IC01
7
-
+
34001
10
Z
.47
.47
C04
C05
C50
10K
R11
TP02
Z
R30
100 Q1
20K
POT6
10K
R10
+
3.3
10K
IC01
3
+
R81
10K
-
2
34001
6
22.1K
R16
SPAN
CW
POT2
10K
D07
R80
+15Z
POSITION
1.0
P5-3
P5-2
TP14
+15Z
20V
20V
~
~
.10
2W 1.0
C02
-
R09
2W
Z
BR1
+
.10
C01
P5-1
R08
LED2
-15Z
7
POWER CONNECTIONS FOR IC5
34001
+
IC05
-
10
-15Z
.47
.47
C15
4
R27
Z
7915
+15Z
D06
REG2
IN
TP10
C16
R28
10
OUT
3.32K
LED1
3.32K
+15Z
REG1
7815
D02
D05
1000
C08
+
1000
C07
+
TP08
IN
D03
C09
D01
+
D04
+
C10
3.3
R12
3.3
OUT
R13
TP07
Z
1
2
3
5
6
7
8
9
10
4
11
6.11 IGBT Driver Board (PCB2,3 – P/N 38030) Drawing 1 Part 2