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