Lincoln Electric SVM158-A service manual PC Board ASSEMBLY-DISPLAY, TEM Reqd Description

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G-12			ELECTRICAL DIAGRAMS					G-12
PC BOARD ASSEMBLY-DISPLAY
				V	I TEM	REQ'D	PART NO.	DESCRIPTION
					1	1	L11130-D	DISPLAY P.C. BOARD BLANK (REF ONLY)
					2	1	L11166-1	FLEX CIRCUIT
					3	4	T15176-2	LED, SPACER, 0,140 HIGH
					4	.01 OZ.	E3539	ELECTRICAL INSULATING COMPOUND
					FOR ITEMS BELOW REFER TO ELECTRONIC COMPONENTS DATABASE FOR COMPONENT
							SPECIFICATIONS
					C1	1	S25024-7SMT	CAPACITOR, SMD, TANTALUM, 47ME, 20V, 10% , S7343
					C2, C3, C4, C5, C11, C12, C19,	8	S25020-3SMT	CAPACITOR, SMD, CERAMIC, 0.1ME, 50V, 10% , X7R, S0805
					C20
				N.A.,N.D. DISP1, DISP2, DISP3, DISP4		8	S17395-6	LED, DISPLAY, 7-SEGMENT, CC, BRIGHT
					DISP5, DISP6, DISP7, DISP8
					J37	1	S18248-10	CONNECTOR, MOLEX, MINI, PCB, 10-PIN
					N.A. LED1, LED2, LED3, LED4	4	T13657-6	LED, T-1, RED, HLMP-K101
					N.A. LED 5, LED6, LED7	3	T13657-12	LED, T-1, 3/4, YELLOW, HIGH-INTENSITY
					R6, R16	2	S25000-1501SMT	RESISTOR, SMD, METAL FILM, 1/10W, 1.50K, 1% , S0805
					R9, R10, R11, R12, R13, R14	6	S25000-1212SMT	RESISTOR, SMD, METAL FILM, 1/10W, 12.1K, 1% , S0805
					R20	1	S25000-2670SMT	RESISTOR, SMD, METAL FILM, 1/10W, 267OHMS, 1% , S0805
					R21, R25, R26, R28, R29	5	S25000-1001SMT	RESISTOR, SMD, METAL FILM, 1/10W, 1.00K, 1% , S0805
					R22, R23	2	S25000-10R0SMT	RESISTOR, SMD, METAL FILM, 1/10W, 10.0OHMS, 1% , S0805
					R24	1	S25000-4751SMT	RESISTOR, SMD, METAL FILM, 1/10W, 4.75K, 1% , S0805
					R27	1	S25000-4752SMT	RESISTOR, SMD, METAL FILM, 1/10W, 47.5K, 1% , S0805
					N.B. X1	1	S17900-8SMT	IC, SMD, CMOS, INVERTER, SCHMITT, HEX, HC14A (SS)
			1		N.B. X2	1	S17900-26SMT	IC, CMOS, SMD, MUX, DAT, 8-INPUT, HC151 (SS)
	N.A.,N.E.				N.B. X3	1	S17900-28SMT	IC, SMD, CMOS, INVERTING BUFFER, 3-ST (SS)
		N.A.			N.B. X4	1	S17900-10SMT	IC, SMD, CMOS, REGISTER, SHFT, S-PI/SO, 8-BIT (SS)
			2.95
					X5, X6, X7	3	S20496-1SMT	IC, SMD, CMOS, DRIVER, DISPLAY, LED, CC, MCU
1.75			R6 SPI DISPLAY	L11130-3
1.60		C20
1.45			R21

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LED
	DISP1	DISP2		DISP3	DISP4
	LED1			LED2
	.50		X7
			R16	C1
	C19			C2	J37
N.C.	0
3	0	N.A.

	LED5									N.A.
		C11	X6
			1
			R25
X5 LED6			X2
	LED7		C3		DISP5 DISP6		R29		DISP7	DISP8
						LED3			X4 LED4
	R13	R11	R22	2	R23	R20
		R12	C4	3		X3			C12	R26
		X1			R24			R28	5	4
	R9
R14		R10					C5			R27
			GROUND SIDE							5.65
										5.75 5.90

2

UNLESS OTHERWISE SPECIFIED: CAPACITORS = MFD/VOLTS INDUCTANCE = HENRIES RESISTANCE = OHMS

NOTES:

N.A. DO NOT COAT WITH ENCAPSULATION MATERIAL.

N.B. CAUTION: THIS DEVICE IS SUBJECT TO DAMAGE BY STATIC ELECTRICITY. SEE E2454 BEFORE HANDLING.

N.C. USE ITEM 3 TO STAND LED1, LED2,LED3 AND LED4 FROM THE P.C. BOARD. THERE MUST NOT BE MORE THAN .020 GAP BETWEEN SPACER AND P.C. BOARD OR BETWEEN SPACER AND LED. ENCAPSULATE P.C.BOARD, SPACER AND LOWER HALF OF LED.

N.D. DISP 1 THRU DISP 8 MUST ALWAYS BE MATCHED BY VENDOR NAME. DO NOT MIX DIFFERENT VENDORS ON THE SAME BOARD ASSEMBLY.

N.E. CONNECTOR MUST BE GREASED WITH ITEM 4 PRIOR TO ENCAPSULATION.

ENCAPSULATE WITH HUMISEAL 1A27LU PER

E1844 OR WITH EQUIVALENT AS APPROVED

BY LINCOLN ELECTRIC COMPANY. (2 COATS)

PART NO.

BUY AS:

IDENTIFICATION CODE

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BUY PER E3867

TEST PER E3856-D

THIS SHEET CONTAINS PROPRIETARY INFORMATION OWNED BY THE LINCOLN ELECTRIC COMPANY AND IS NOT TO BE REPRODUCED, DISCLOSED OR USED WITHOUT THE EXPRESS WRITTEN PERMISSION OF THE LINCOLN ELECTRIC COMPANY, CLEVELAND, OHIO U.S.A.

UNLESS OTHERWISE SPECIFIED TOLERANCE	"X" INFO.	Chg. Sheet No.	DESIGN INFORMATION	REFERENCE:	EQUIPMENT TYPE:	MISCELLANEOUS
MANUFACTURING TOLERANCE PER E2056
ON 2 PLACE DECIMALS IS ± .02	XM5626	6-2-2000A	DRAWN BY: JB/	L11130-2
ON 3 PLACE DECIMALS IS ± .002	XA	8-4-2000C			SUBJECT:	SPI DISPLAY P.C. BOARD ASSEMBLY
ON ALL ANGLES IS ± .5 OF A DEGREE
MATERIAL TOLERANCE ("t") TO AGREE			ENGINEER:	SUPERSEDING:
						DATE:5-11-2000DRAWING No.: L 11130-3
WITH PUBLISHED STANDARDS.			APPROVED:		SCALE:FULL
DO NOT SCALE THIS DRAWING

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.

SOLID EDGE

V350-PRO