Switch Board (L8441) Layout - Lincoln Electric INVERTEC STT Series Service Manual

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Switch Board (L8441) Layout

2 1 B 1 1 B 9 B 0 1 B
C 3 C 3
Q 3 Q 2
L8441-[ ]
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.
ELECTRICAL DIAGRAMS
3 B 7 B 5 B 6 B
C 4 C 4
B 8 B 4
SWITCH
2 B 1 B
D 1 , D 2 , D 3 , D 4 , D 5 , D 6 ,
D 7 , D 8 , D 9 , D 1 0
D Z 1 , D Z 2 , D Z 3 , D Z 1 2
D Z 4 , D Z 7
D Z 6 , D Z 9
D Z 5 , D Z 8
Q 4 , Q 1 2
Q 5 , Q 6 , Q 7 , Q 8 , Q 9 , Q 1 1
Q 1 Q 1 0
R 1 , R 3 , R 5 , R 2 4
R 2 , R 4
R 6 , R 8 , R 9 , R 1 7 , R 1 9 , R 2 5
R 2 6 , R 2 7 , R 3 3 , R 3 4
R 7 , R 3 0
R 1 0 , R 3 2
R 1 1 , R 1 5 , R 2 2 , R 2 8
R 1 2 , R 1 4 , R 2 0 , R 2 1
R 1 3 , R 3 1
R 1 6 , R 2 3
R 1 8 , R 2 9 , R 3 7 , R 4 2
R 3 5 , R 3 6
R 3 8 , R 3 9 , R 4 0 , R 4 1
I T E M R E Q ' D P A R T N O .
C 1 , C 5 , C 6 , C 7
4 S 1 6 6 6 8 - 5
2
S 1 6 6 6 8 - 4
C 2 , C 8
2
C 3 , C 4 S 1 3 4 9 0 - 1 1 2
1 0 T 1 2 7 0 5 - 3 4
4 T 1 2 7 0 2 - 2 7
T 1 2 7 0 2 - 2 9
2
2
T 1 2 7 0 2 - 4 0
2 T 1 2 7 0 2 - 5 3
Q 1 , Q 2 , Q 3 , Q 1 0 4 T 1 2 7 0 4 - 7 3
2
T 1 2 7 0 4 - 6 8
6
T 1 2 7 0 4 - 6 9
4
S 1 9 4 0 0 - 1 0 0 0
2
S 1 9 4 0 0 - 2 2 1 0
1 0 S 1 9 4 0 0 - 1 0 R 0
2 S 1 9 4 0 0 - 1 5 0 1
2 S 1 9 4 0 0 - 1 5 0 2
4 T 1 4 2 3 1 - 2 0
4 S 1 9 4 0 0 - 1 0 0 1
2 S 1 9 4 0 0 - 2 0 R 0
2 S 1 9 4 0 0 - 2 2 1 2
4 S 1 9 4 0 0 - 4 7 5 0
S 1 9 4 0 0 - 4 7 R 5
2
S 1 9 4 0 0 - 3 9 2 2
4
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I D E N T I F I C A T I O N
. 0 2 2 / 5 0
2 7 0 0 p F / 5 0
. 0 4 7 / 1 2 0 0
1 N 4 9 3 6
1 N 4 7 4 0
1 N 4 7 4 4 A
1 N 4 7 3 5
3 . 3 V 1 W
I C P K G M O S F E T
2 N 4 4 0 1
2 N 4 4 0 3
1 0 0 1 / 4 W
2 2 1 1 / 4 W
1 0 1 / 4 W
1 . 5 K 1 / 4 W
1 5 K 1 / 4 W
1 1 / 2 W
1 K 1 / 4 W
2 0 1 / 4 W
2 2 . 1 K 1 / 4 W
4 7 5 1 / 4 W
4 7 . 5 1 / 4 W
3 9 . 2 K 1 / 4 W
INVERTEC STT