Electrical diagrams, Digital power supply board feeder board, Spi spool gun board – Lincoln Electric POWER MIG SVM160-B User Manual
Page 103: Msp iii board, 300a chopper board, P.c. board connection detail, Power mig 300
ELECTRICAL DIAGRAMS
G-2
POWER MIG 300
WIRING DIAGRAM - POWER MIG 300 CODE 10562 ONLY
ALL CASE FRONT COMPONENTS SHOWN VIEWED FROM REAR.
PANEL RECEPTACLE CAVITY NUMBERING SEQUENCE
(VIEWED FROM LEAD SIDE OF RECEPTACLE)
9 PIN
J50
1
2
3
6 5 4
9 8 7
3
2
1
4 5 6
7 8 9
9 PIN
P50
LEAD COLOR CODE:
B=BLACK OR GRAY
R=RED OR PINK
W=WHITE
G=GREEN (W/YELLOW STRIPE)
12-21-2001A
6
12
CONNECTOR CAVITY NUMBERING SEQUENCE
(VIEWED FROM COMPONENT SIDE OF BOARD)
1
7
4
8
1
5
3
6
1
4
2
1
4
3
6
5
10
1
8
16
1
9
2
1
6
7
14
1
J4
1
2
3
4
5
6
7
8
9
10
11
12
J3
1
2
3
4
5
6
7
8
9
10
J7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
J9
1
2
3
4
5
6
J8
1
2
3
4
5
6
7
8
J2
1
2
3
4
J1
0B
1
2
J1
1
1
2
3
4
1
2
J6
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
J5
1
2
3
4
J1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
J1
0A
C
O
N
T
R
O
L
B
O
A
R
D
J8
1
1
2
3
4
J8
2
1
2
3
4
J8
3
1
2
3
4
5
6
J8
6
1
2
3
4
5
6
7
8
9
10
J8
5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
J8
7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
J8
4
1
2
3
4
5
6
7
8
1101
1102
1103
1104
1102
1101
J4
1
1
2
3
4
J4
3
1
2
3
4
5
6
7
8
9
10
11
12
J4
2
1
2
3
4
5
6
DIGITAL POWER SUPPLY BOARD
FEEDER BOARD
844:B
847:U
841:R
TACH
GUN TRIGGER
1 2 3
4
851
852
855
832:W
831:B
834
833
836
835
GAS
SOLENOID
833
834
806
804
802
801
716
715
615
604
607
604
412
411
410
408
407
406
405
403
402
401
WIRE
DRIVE
MOTOR
GEARBOX
TO +
STUD
901
903
502
-
+
BRIDGE
DIODE
FAN
MOTOR
ENCODER
P.C. BOARD
DISPLAY
P.C. BOARD
FLEX
50
wa
tts
50
0 o
hm
s
2520
2530
471
472
412
411
408
407
403
406
402
405
410
401
901
903
715
716
+
-
LEM
1 2 3 4
802
804
801
806
+STUD
-STUD
502
503A
FAN
RELAY
~
FAN
L1
CHOKE
RECONNECT PANEL
LINE
SWITCH
H1
H2
H5
H3
H4
115V
X3
X4
X1
X2
H1
H4
L2
L1
H1
W
B
G
L1
L2
H5 H2 H3 H4
1
2
3
4
5
6
J8
8
ENCODER
BOARD
MSP III
BOARD
DISPLAY
BOARD
611
503
E
F
A B
C
D
R2
CONTROL
RECTIFIER
TP6
903B
901B
TP5
TP4
R1
50
wa
tts
50
0 o
hm
s
8512
J3
2
1
2
3
4
5
6
7
8
9
10
1
2
3
4
3244
3243
1
2
3
4
3234
3233
1
2
3
4
5
6
75
76
3214
2
4
SPI SPOOL GUN BOARD
3244
3243
J34
1
2
3
4
5
6
7
8
9
10
FLEX
J341
1
2
3
4
5
6
7
8
J3
21
7
8
J3
23
J3
24
3218
77
E
F
A
B
C
D
SPOOL GUN/
PUSH-PULL
SWITCH
G
GND
4A
4
2
76A
4A
2A
75A
3218
3214
77A
2A
75
75A
76
76A
77
77A
FOOT
AMPTROL
AMPHENOL
SPOOL GUN/
PUSH-PULL
AMPHENOL
(VIEWED
FROM
REAR)
MSP III BOARD
3414
3411
3411A
3415
SWITCH
SET
3416
3411A
3417
SWITCH
SELECT
3411
3414
3415
3416
3417
X5
X6
-
+
C6
+
X6
X5
6800/75
C5
+
2400/100
615
607
B8
B7
C1
C2
C3
C4
B1
B3
B2
B4
B6
B5
300A CHOPPER BOARD
(SHOWN
CONNECTED
FOR 230V)
3234
472
471
3233
471B
472B
SHIELDED CABLE
L5
L4
L8
L3
831:B
832:W
L2
L7
L6
1104
1103
503
503A
B6
B2
B5
B1
B5
L2 THRU L9 ARE RF CHOKES
SHIELDED
CABLE
437
431
J99
1
2
3
4
437
431
1
2
3
4
5
6
7
20
253
254
251
254
253
251
SHIELDED CABLE
S3 RS232
CONNECTOR
SHIELDED
CABLE
P.C. BOARD CONNECTION DETAIL
SPOOL GUN
BOARD
FEEDER
BOARD
J37
J36
FLEX
J361
1
2
3
4
LOCATED ON
CASE FRONT
CONTROL
BOARD
FLEX CIRCUIT
SHIELDED
CABLE
SHIELDED
CABLE
H1
H4
H1
L9
G-2
NOTE:
This diagram is for reference only. It may not be accurate for all machines covered by this manual. The wiring diagram specific to your code is pasted inside one of the enclosure panels of your machine.