Lincoln Electric SVM144-B service manual Display PC Board Schematic L10951, Powermig

Return to Section TOC

Return to Section TOC

Return to Section TOC

Return to Section TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

G-8 ELECTRICAL DIAGRAMS G-8

DISPLAY PC BOARD SCHEMATIC - (L10951)

																																							LAST NO. USED	R- 14 X- 5	C- 10 LED- 3	LABELS D- 1 DISP- 7	SUPPLY VOLTAGE NET	POWER SUPPLY SOURCEPOINT	COMMON CONNECTION	FRAME CONNECTION		EARTH GROUNDCONNECTION			SCHEMATIC, DISPLAY PCB		L 10951
																			500																															POWERMIG 255		SHT. SUP’S’D’G.NO.
																																									CAPACITORS = MFD ( .022/50V UNLESS OTHERWISE SPECIFIED)
																16	BANK4	X3	a	7																						RESISTORS = Ohms (1/4W UNLESS OTHERWISE SPECIFIED)							EQUIP. TYPE		CLEVELAND, OHIO U.S.A.SUBJECT
																15				6								3	8
																	BANK3		b													3	8			3	8
																											1
																3	Vdd		c	5											1				1								DIODES = 1A, 400V (UNLESS OTHERWISE SPECIFIED)
																											2
																															2				2
																13	BANK2		d	4							4																										GT DATE 2/20/98 CHK.
																															4				4
																											5
																9	BANK1		e	2											5				5
																											6
																															6				6
																17	BANK5		h	19							7
																															7				7
																12	DATA IN		Vss	14							9	DISP3			9	DISP2			9	DISP1														THE LINCOLN ELECTRIC CO.
																											10																									NONE
																															10				10
																11	CLOCK		g	20
																																								ELECTRICAL SYMBOLS PER E1537
																10	/ENABLE		f	1																			GENERAL INFORMATION
																																																FILENAME: L10951-1AB
																18	DATA OUT		Rx	8
																	MC14489																																			SCALE
																				R11	1.50K																																DR.
																					500																										A COMMON CODE
		J10	LATCH					13		12	1			2																																DIAGRAM MAY
		4				R10			X5			X5
						475
								C9																																						WITHOUT AFFECTING THE INTERCHANGEABILITY OF A COMPLETE BOARD, THIS	NOT SHOW THE EXACT COMPONENTS OR CIRCUITRY OF CONTROLS HAVING
								.0047																																					COMPONENTS OR CIRCUITRY ON A PRINTED CIRCUIT BOARD MAY CHANGE
								50V
								500
		J10	SCK																																														Ch’ge.Sht.No.	XA	3-12-99
		5						R9			11	X5		10
								475		C8											500
										.0047
										50V
											500							16	BANK4	X4	a	7
																		15				6								3	8
																			BANK3		b													3	8			3	8
																													1
																		3	Vdd		c	5											1				1
																													2
																																	2				2
		J10																13	BANK2		d	4							4										VOLTS
			MOSI								9			8																			4				4
		6						R8					X5					9	BANK1		e	2							5				5				5		LED3
																													6
								475										17	BANK5		h	19							7				6				6
										C7																							7				7
																						14							9	DISP7				DISP6				DISP5										NUMBER.
										.0047								12	DATA IN		Vss												9				9
				10K		10K		10K																					10
			R5		R6		R7			50V								10	/ENABLE		g	20											10				10
											500							11				1
																			CLOCK		f																							NOTES :	N.A. SINCE
																		18	DATA OUT		Rx	8
																			MC14489
				500
																						R12	1.50K
						R1
						221
						R2																	500
						221
						R13								+5VA
						221
						R3					D1
						221
						R4									Vdd	3		Vdd	3				14
						221
			J10																				X5
	515	7				R14					X1				X3		C10	X4			C3			C4	5	X5	6
										IN	7805			OUT							0.1
						221											0.1					HEXINV		0.1
																					50V
															MC14489		50V	MC14489						50V
										C1				C2
											GND
										4.7
														18	Vss			Vss
										35V						14			14
														15V									7
L			J10
10951	500	8																							3	X5	4
																							500

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.	POWER MIG 255