Lincoln Electric SVM129-B service manual PC Board Assembly Switch All Codes L8441

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G-19	ELECTRICAL DIAGRAMS	G-19
PC Board Assembly - Switch - All Codes - (L8441)

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B12

B11

B9

B10

B3

B7

B5

B6

B2

B1

C3

C4

D2

R3

D4

C1

C5

D1

R1

D6

Q7

R16

R14

D5

8 B

B4

D8

R21

R23

Q11

Q4

R12

DZ5

R7

R30

DZ8

R20

Q12

R13

Q3

Q2

Q1

Q10

R31

DZ3

R15

R5 R4

R11

R28

R2 R24

R22

DZ12

R38

R39

R40

R41

D3

DZ6

R35

R33

R6 R9

R27 R25 R34

R36

DZ9

D7

DZ4

C7

R42

R18

R17 R8

R19 R26

R29 R37

C6

DZ7

Q5

Q8

DZ1

D9

C2

R10

L8441-[ ]

SWITCH

R32

C8

D10

DZ2

Q6

Q9

		ITEM		REQ'D	PART NO.		IDENTIFICATION
C1,	C5, C6, C7			4	S16668-5		.022/50
C2,	C8			2	S16668-4		2700pF/50
C3,	C4			2	S13490	-112	.047/1200
D1, D2, D3, D4, D5, D6,				10	T12705-34		1N4936
D7, D8, D9, D10
DZ1,	DZ2,	DZ3,	DZ12	4	T12702-27		1N4740
DZ4,	DZ7			2	T12702-29		1N4744A
DZ6,	DZ9			2	T12702	-40	1N4735
DZ5,	DZ8			2	T12702	-53	3.3V 1W
Q1,	Q2, Q3, Q10			4	T12704	-73	IC PKG MOSFET
Q4,	Q12			2	T12704	-68	2N4401
Q5, Q6, Q7, Q8, Q9, Q11				6	T12704	-69	2N4403
R1,	R3, R5, R24			4	S19400-1000		100	1/4W
R2, R4				2	S19400-2210		221	1/4W
R6, R8, R9, R17, R19, R25				10	S19400-10R0		10	1/4W
R26, R27,		R33,	R34
R7, R30				2	S19400-1501		1.5K		1/4W
R10,	R32			2	S19400-1502		15K	1/4W
R11,	R15,	R22,	R28	4	T14231-20		1	1/2W
R12,	R14,	R20,	R21	4	S19400-1001		1K	1/4W
R13,	R31			2	S19400-20R0		20	1/4W
R16,	R23			2	S19400-2212		22.1K		1/4W
R18,	R29,	R37,	R42	4	S19400-4750		475		1/4W
R35,	R36			2	S19400-47R5		47.5		1/4W
R38,	R39,	R40,	R41	4	S19400-3922		39.2K		1/4W

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	INVERTEC STT & STT II
	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.