Lincoln Electric SVM101-B PC Board Assembly Power L8033-7, VOLT. REG. & Heat Sink Asbly

		G-25			ELECTRICAL DIAGRAMS			G-25
Return to Section TOC	Return to Master TOC	PC BOARD ASSEMBLY - POWER - (L8033-7)
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TOC	TOC		￿
to Section	to Master
		Item	Identification	Item	Identification		Item	Identification
		X1	REGULATOR ASBLY	TP1,TP2	15J		R44	THERMISTOR
Return	Return	C2,C7,C11	.022/50	R11,R19,R26,R27	10K 1/4W
		J7	CONNECTOR	R5,R6,R10,R22	100K 1/4W
		X5	VOLT. REG. & HEAT SINK ASBLY.	R4	1.5K 1/4W		NOTE: Individual parts listed are not available from Lincoln Electric.
		C3	150/50	R14,R41	15K 1/4W
		D1,D2,D3,D4,D5,D8,D9,	1N4004	R9	1150K 1/4W
		D10,D11,D12,D13		R21	2.21K 1/4W
		C6	1.8/20	R3	243 1/4W
		C4	4.7/35	R7,R8,R24	267 1/4W
		C5	39uF/20VDC	R2	2.67K 1/4W
		C1	3300/50	R18	26.7K 1/4W
		OCI1	OPTO ISOLATOR	R20	267K 1/4W
		X2,X3	8 PIN I.C. (SS)	R13,R15,R16,R17	33.2K 1/4W
TOC	TOC	C8,C9,C12,C13	.1/50	R23	4.75K
		J6	HEADER	R12	475K 1/4W
		C10	500/50	R25	5.11K 1/4W
		DZ1	1N4744A	X4	LM224 OP-AMP
Section	Master
		DZ2,DZ3	1N4746A	J14	HEADER
		Q1,Q3	3A/60V. TRANSISTOR	Q40	2N4401
		Q2,Q4	3A ,60V. PNP TRANSISTOR	R42,R43	100 1/4W
		Q5	3.5A. 60V. MOSFET (SS)	DZ4,DZ5	1N4742A
to	to
		D6,D7	1N5822 SCHOTTKY BARRIER DIODE	R28,R29	10 1/4W
Return	Return
		R1	.0 OHM, 5W RESISTOR	D14	1N4936
		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.					V300-I