Lincoln Electric SP-100 service manual Control P.C. Board G2314, SCR1, SCR2 SCR 81 Heatsink Asbly

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ELECTRICAL DIAGRAMS G-7

CONTROL P.C. BOARD G2314

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Item	Identification
SCR1, SCR2	SCR 81 HEATSINK ASBLY
X4	C-VOLT REG, FIXED, 3-T, (+),1A, 15V
C4, C9, C11, C12, C13,	CAPACITOR-CEMO, .022, 50V, 20%
C14, C16, C20, C21,
C24, C26
J1	CONNECTOR, MOLEX, MINI, PCB,
	6-PIN
C5	CAPACITOR-ALEL, 150, 50V, +150/
	–10%
D1, D2, D3, D4, D5, D6, DIODE-AXLDS, 1A, 400V
D7, D8, D9, D11 , D12,
D13, D14, D17, D18,
D19, D20, D21
R32, R33	RESISTOR-WW, 15W, 80,5%, SQ
C19	CAPACITOR-TAEL, 1.8, 20V, 10%
C6, C17	CAPACITOR-TAEL, 4.7, 35V, 10%
C15	CAPACITOR-TAEL, 18,15V, 10%
C8, C10, C18	CAPACITOR-TAEL, 1.0, 35V, 10%
C23	CAPACITOR-ALEL, 3300, 50V, +30/-10%
OCI1 OCI2	OPTOCOUPLER-TRIAC DRIVER, 3023
TRI1	TRIAC-T220, 6A, 400V, 2500D
J2	CONNECTOR, MOLEX, MINI, PCB,
	10-PIN
C7	CAPACITOR-PEF, 0.1,100V, 10%
C22	CAPACITOR-PEF, 0.22, 100V, 10%
C1, C25	CAPACITOR-CD, .0047/.005, 1400V,
	20%
C2 C3 C27	CAPACITOR-PEF, 0.1, 400V, 10%
DZ3	ZENER DIODE-1W, 16V, 5%,1N4745A
DZ1	ZENER DIODE-1W, 10V, 5%,1N4740A
DZ4	ZENER DIODE-1W, 43V, 5%,1N4755A
DZ2	ZENER DIODE-1W, 5.1V, 5%,1N4733A
Q2, Q3, Q4, Q5	TRANSISTOR-N, T226, 0.5A, 40V,
	2N4401
D15, D16	DIODE-AXLDS, 3A, 200V, 1N5402
D10	DIODE-AXLDS, 0.15A, 75V, 1N914
B31 A, B531	CONNECTOR, TAB, QC, VERTICAL,
	1/4
B7, B32	CONNECTOR, TAB, QC, VERTICAL,
	3/16
R69, R72	RESISTOR-WW, 5W, 0.5,5%, SQ
R5	RESISTOR-MF, 1/4W, 100, 1%
R2, R4, R8, R26, R27,	RESISTOR-MF, 1/4W, 1.00K, 1%
R41, R48, R51, R55,
R58, R70
R50, R57, R66, R68,	RESISTOR-MF, 1/4W, 10.0K, 1%
R71, R73, R74
R42, R52, R53, R54,	RESISTOR-MF, 1/4W, 100K, 1%
R55
R43	RESISTOR-MF, 1/4W, 1.00M, %
R15, R16, R18	RESISTOR-MF, 1/4W, 1.30K, 1%
R3	RESISTOR-MF, 1/4W, 150,1%
R36, R63, R64, R67	RESISTOR-MF, 1/4W, 15.0K, 1%

Item	Identification
R45	RESISTOR-MF, 1/4W, 18.2K, 1%
R28, R31, R47, R49	RESISTOR-MF, 1/4W, 2.21 K, 1%
R12, R38, R39, R60,	RESISTOR-MF, 1/4W, 22.1K, 1%
R61
R75	RESISTOR-MF, 1/4W, 267,1 %
R22	RESISTOR-MF, 1/4W, 267K, 1%
R46, R78, R79, R80	RESISTOR-MF, 1/4W, 3.32K, 1%
R21	RESISTOR-MF, 1/4W, 33.2K, 1%
R35	RESISTOR-MF, 1/4W, 39.2K, 1%
R44	RESISTOR-MF, 1/4W, 392K, 1%
R11	RESISTOR-MF, 1/4W, 4.75K, 1%
R10	RESISTOR-MF, 1/4W, 47.5K, 1%
R62	RESISTOR-MF, 1/4W, 47.5,1%
R23, R24	RESISTOR-MF, 1/4W, 562,1%
R17, R25, R29, R30	RESISTOR-MF, 1/4W, 56.2K, 1%
R76	RESISTOR-MF, 1 /4W, 681 ,1 %
R19, R65	RESISTOR-MF, 1/4W, 6.81K, 1%
R14, R20	RESISTOR-MF, 1/4W, 68.1K, 1%
R13	RESISTOR-MF, 1/4W, 82.5K, 1%
Q7	TRANSISTOR-PMF, T220, 6A, 100V,
	IRF9520
X1 , X2, X3	C-OP-AMP, OUAD, GEN-PURPOSE,
	224N
Q1, Q6	TRANSISTOR-N, T226, 0.5A, 300V,
	MPS-A42
R37, R83	RESISTOR-MF, 1/4W, 2.00K, 1%
R34, R81, R82	RESISTOR-MF, 1/4W, 3.01K, 1%
R56	TRIMMER-ST, 1/2W, 10K, 10%,
	LINEAR
R6	RESISTOR-WW, 5W, 25, 5%, SQ
R1	RESISTOR-WW, 5W, 150, 5%, SQ

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NOTE: Lincoln Electric assumes no responsibility for liabilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty. Individual Printed Circuit Board Components are not avail- able 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.

SP-100