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G-7
Power PC Board (G2684) Schematic
+15V
4
C3
X2
L M 2 2 4
12
14
X2
11
13
R1
10.0
DZ1
6.2V
1W
DZ3
R20
10.0
DZ5
6.2V
1W
5
T1
G1
GATE
8
S1
3
G2
J6
GATE
1
1
10
S2
DRIVE
4
J6
S3
2
12
GATE
10.0
9
G3
R41
6
F R O M
S4
GATE
CONTROL
7
G4
6.2V
BOARD
1W
(PWM DRIVE)
DZ9
R62
10.0
DZ12
6.2V
1W
NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty. Individual Printed Circuit Board Components are not
available from Lincoln Electric. This information is provided for reference only. Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may result
in danger to the Machine Operator or Technician. Improper PC board repairs could result in damage to the machine.
D
2
D
A1
R8
3
R6
G
2.7
5 W
APT6035N
10.0
DZ2
S
15V
D8
1
1W
1.00K
1.00K
1.00K
1.00K
1A
1000V
C1
.0047
50V
15V
1W
C
5
BYT12P600
A1
A
4
7
C
BYT12P600
A1
A
6
C
9
C6
D
.0047
A1
1000V
10
R25
G
APT6035N
10.0
R27
DZ6
S
D9
15V
5 W
2.7
8
C5
1A
1W
1.00K
1.00K
1.00K
1.00K
.0047
1000V
50V
DZ7
15V
1W
B
2
D
R48
A2
2.7
5 W
3
R46
G
APT6035N
10.0
DZ10
S
D10
15V
1
1W
1A
C8
1.00K
1.00K
1.00K
1.00K
1000V
.0047
DZ11
50V
15V
1W
TRANSFORMER
5
C
BYT12P600
A2
A
4
7
C
BYT12P600
A2
A
6
A
9
C12
.0047
D
1000V
A2
10
R67
G
R69
APT6035N
DZ13
10.0
2.7
5 W
S
D11
15V
C11
1A
1W
8
1.00K
1.00K
1.00K
1.00K
.0047
1000V
50V
DZ14
E
15V
1W
ELECTRICAL DIAGRAMS
INPUT RECTIFIER
POSITIVE
209
RECONNECT
CR1
206
4
3
R13
R14
150K
150K
R10
CR1
R11
CAPACITOR
6
5
100
10W
100
10W
100
PRECHARGE
10W
Q1
4A
2.7
900V
1W
5 W
C2
.0047
1000V
205
TRANSFORMER
PRIMARY
R29
R30
2500
2500
2500
5 W
5 W
5 W
BLEEDER
RESISTORS
FILTER
325VDC
(NOMINAL)
CAPACITOR
2500
5 W
+15V
208
2.8K
TRANSFORMER
+
1
C7
PRIMARY
X1
8
27
REF
TL431
35V
-
6
562
2.7
5 W
203A
RECONNECT
202A
RECONNECT
2.7
5 W
C9
.0047
1000V
204
+15V
PRIMARY
R53
BLEEDER
R71
16.5K
RESISTORS
2500
6.19K
5 W
2500
5 W
R51
150K
FILTER
325VDC
D4
CAPACITOR
(NOMINAL)
150K
2500
5 W
201
TRANSFORMER
2500
PRIMARY
5 W
1.82K
DZ15
2.7
15V
5 W
1W
207A
NEGATIVE
INPUT RECTIFIER
(RELAY DRIVE)
FROM CONTROL BD.
J6
6
CR1
2
D7
1
J6
R15
3
150K
150K
R17
R18
5
1
100
1.82K
OCI1
DZ4
CNY17-3V
12V
4
6
2
C4
.022
267K
50V
+15V
150K
15.0K
D2
150K
R40
332K
5
7
X2
6
D3
6.19K
16.5K
+15V
OVERVOLTAGE
PROTECTION
10K
R56
332K
10
3
8
X2
1
9
X2
1.82K
J6
2
D5
R78
4
3.32K
475
15.0K
1
5
OCI2
10K
CNY17-3V
TO CONTROL BD.
(VOLTAGE PROTECTION)
2
6
4
C10
.022
681K
50V
J6
5
NOTE: 202,203,206,&207 BOLT ON WITH FILTER CAPS
G-7
INVERTEC V250S
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