Lincoln Electric SVM140-A service manual PC Board ASSEMBLY-POWER G3172-1, PRO-CUT Power

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G-12	ELECTRICAL DIAGRAMS	G-12
PC BOARD ASSEMBLY-POWER (G3172-1)

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D7

CR1

B209

R10

R29	R30
R8	R7

B205

C2

D8

B206

B203

B208

D9

R26

C6

R27

R31

			R32
R25
R5
R4
R3
R2
C1
R80
DZ2		R1	DZ1
DZ3
DZ7
DZ6	R20	DZ5
			R12

R79

C5

R21

R22

R23

R24

R6

PRO-CUT POWER

A2 G3172-1

	J10
R61	C10

OCI2

	R60
				R57
	R58	R59	C3	X2
R13		D4		R40
		R52
		R55		D3
		R53		D5
R14		R56		D2
	R11	R36
		R35		R37
		R39
R15		C7
	R34
				X1
R16	R75
	R76
	R17	R19	C4	OCI1
	DZ4			Q1
				R54
	R86			R98
R28
	C14			D13
				D14
R93				R83
R94				R87
R38	X3			R78
R33				R90
D6				R85
R95				R84
				R88
R89
				R92
	Q2			R91
			R97
R96
	C13

R18

A1

						ITEM		REQ'D	PART NO		IDENTIFICATION
						C1,C5,C8,C11		4	S16668-6		4700pF/50
						C2,C6,C9,C12		4	S20500-4		.0047/1000V
						C3,C4,C14		3	S16668	-5	.022/50
						C7		1	S13490	-93	27/35
						C10		1	S16668	-9	150pF/100
						C13		1	S13490	-130	.27/50
						CR1		1	S14293	-18	DPST RELAY
						D1,D2,D3,D4,D5,D6,D7,D12		10	T12199-1		1N4004
						D13,D14
						D8,D9,D10,D11		4	T12705-44		DIODE 1000V/1A
				T1
						DZ1,DZ5,DZ9,DZ12	4	T12702-40			1N4735
						DZ2,DZ3,DZ6,DZ7,DZ8,DZ10		9	T12702-29		1N4744A
						DZ11,DZ13,DZ14
						DZ4		1	T12702-19		1N4742A
D12
						J10		1	S20351	-6	HEADER
					R69
	D1
						OCI1,OCI2		2	S15000	-22	OPTO ISOLATOR
R51			R50
			B201			Q1		1	T12704-75		FET (SS)
				C12
						Q2		1	T12704-73		IC PKG MOSFET (SS)
				R73
					R74	R68
						R1,R6,R20,R25,R41,R46,R62		12	S19400	-10R0	10 1/4W
						R67,R79,R80,R81,R82
				D11		R2,R3,R4,R5,R21,R22,R23	17	S19400-1001			1K 1/4W
	DZ12					R24,R42,R43,R44,R45,R60
	R62					R63, R64,R65,R66
	R81			DZ8	R77	R7,R8,R26,R27,R47,R48,R68		8	T14648-21		2.7 OHM 5W
	R64		R71
	R65			R72		R69
	R66
	R63					R10,R11,R12		3	T14649-4		100 10W
	C11					R13,R14,R15,R16,R34,R35		10	S19400-1503		150K 1/4W
	R46				B207	R50,R51,R83,R86
	DZ13
	DZ14					R17		1	S19400-1000		100 1/4W
						R18,R77		2	S19400-1821		1.82K 1/4W
						R19		1	S19400-2673		267K 1/4W
						R28		1	T10812-41		10K 1/2W TRIMMER
	DZ9	DZ11			B202	R29,R30,R31,R32,R71,R72		8	T14648-12		1500 OHM 5 WATT RESISTOR
R41			R48	R47		R73,R74
						R33,R38,R58		3	S19400-3321		3.32K 1/4W
						R36,R52,R89,R90	4	S19400-6191			6.19K 1/4W
						R37,R55,R91,R92	4	S19400-1502			15K 1/4W
	DZ10					R39,R53		2	S19400-1652		16.5K 1/4W
	R67
	C8					R40,R56,R84,R87	4	S19400-3323			332K 1/4W
	R45		D10	B204		R54		1	S19400-1372		13.7K 1/4W
	R44
	R43				C9	R57,R59,R85,R88	4	S19400-1002			10K 1/4W
	R42					R61		1	S19400-2213		221K 1/4W
	R82
						R75		1	S19400-5620		562 1/4W
						R76,R98		2	S19400-2801		2.8K 1/4W
						R78		1	S19400	-2001	2.0K 1/4W
						R93		1	S19400	-4751	4.75K
						R94		1	S19400	-4752	47.5K 1/4W
						R95,R96		2	S19400	-2211	2.21K 1/4W
						R97		1	T12300-79		1 WATT 1 OHM 1% RESISTOR
						T1		1	S13000	-46	TRANSFORMER
						X1		1	S15128	-10	VOLTAGE REF.
						X2		1	S15128	-4	LM224 OP-AMP
						X3		1	S15128	-18	QUAD-OP AMP

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 pro- vided 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.

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