NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshoot-
ing. 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.

Item

Identification

Item

Identification

C79,C80,C92, . . .CAPACITOR-CD,.0047/.005,1400V,20%
C93,C94

D1,D2,D24,D25,D26,D27, . . . . . .DIODE-AXLDS,1A,400V
D28,D29,D30,D31,D32,D34,D35,D37,D38,D39,D40,D41,
D42,D43,D44,D45,D46,D47,D48,D49,D50,D51,D52,D53,
D54,D55,D56,D57,D63,D65,D66,D67,D68,D69,D70,D71,
D72,D73,D75,D76

D58,D59,D60,D61,D62,D64 . . . .DIODE-AXLDS,1A,1000V
L3,L4,L5,L6,L7 . . . .CHOKE-330UH,10%,110MA,MOLDED
L1,L2 . . . . . . . .CHOKE-390UH,5%,225MA,CONFORMAL
R40 . . . . . . . . . . . . . . . . . . .RESISTOR-WW,7W,0.25,1%
DZ5 . . . . . . . . . . . . .ZENER DIODE-1W,16V,5%,1N4745A
DZ4 . . . . . . . . . . . . .ZENER DIODE-1W,15V,5%,1N4744A
DZ3 . . . . . . . . . . . . .ZENER DIODE-5W,10V,5%,1N5347B
DZ7 . . . . . . . . . . . .ZENER DIODE-1W,6.2V,5%,1N4735A
DZ1,DZ2,DZ6 . . . . .ZENER DIODE-1W,18V,5%,1N4746A
Q9,Q16 . . . . . . . .TRANSISTOR-P,T226,0.2A,30V,2N4125
Q17 . . . . . . . .TRANSISTOR-NMF,T220,15A,60V,15N06E
D20 . . . . . . . . . . . . . .DIODE-AXLDS,1A,30V,SCHOTTKY
R66 . . . . . . . . . . . . . . . . . . . .RESISTOR-MF,1/2W,1K,2%
R35 . . . . . . . . . . . . . . . . . . .RESISTOR-MF,1/2W,2.7K,2%
R87,R94 . . . . . . . . . . . . . . . .RESISTOR-MF,1/2W,330,2%
R123 . . . . . . . . . . . . . . . . . .RESISTOR-MF,1/2W,6.8K,2%
R22,R70 . . . . . . . . . . . . . . .RESISTOR-MF,1/2W,3.9K,2%
R47 . . . . . . . . . . . . . . . . . . . .RESISTOR-MF,1/2W,3K,2%
R121 . . . . . . . . . . . . . . . . . .RESISTOR-MF,1/2W,27K,2%

R5,R6,R7,R30,R75,R99, . . . .RESISTOR-MF,1/2W,100,2%
R113,R114,R115,R120

R37,R122 . . . . . . . . . . . . . . .RESISTOR-MF,1/2W,750,2%
R52,R57 . . . . . . . . . . . . . . .RESISTOR-MF,1/2W,1.8K,2%
R118 . . . . . . . . . . . . . . . . . . . .RESISTOR-MF,1/2W,68,2%
R89,R90 . . . . . . . . . . . . . . . .RESISTOR-MF,1/2W,270,2%
R31 . . . . . . . . . . . . . . . . . . .RESISTOR-MF,1/2W,1.5K,2%
R62 . . . . . . . . . . . . . . . . . . .RESISTOR-MF,1/2W,10K,2%
R1 . . . . . . . . . . . . . . . . . . . .RESISTOR-MF,1/2W,18K,2%
R86,R92 . . . . . . . . . . . . . . . . .RESISTOR-MF,1/2W,15,2%
R51,R56 . . . . . . . . . . . . . . . .RESISTOR-MF,1/2W,56K,2%
R71 . . . . . . . . . . . . . . . . . . .RESISTOR-MF,1/2W,470,2%
R48,R50 . . . . . . . . . . . . . . . . .RESISTOR-CC,2W,10,10%
R43 . . . . . . . . . . . . . . . . . . .RESISTOR-WW,5W,3.3K,5%
TP3,TP5 . . . . . . . . . . . . . . . . . .MOV-50VRMS,15J,14MM
TP1,TP2 . . . . . . . . . . . . . . . . . .MOV-75VRMS,22J,14MM
R106 . . . . . . . . . . . . . . . . . . . .RESISTOR-MF 102K 1/4W
R49,R55,R67,R69,R139 . . . . . .RESISTOR-MF 10K 1/4W

C45 . . . . . . . . . . . . . . .CAPACITOR-PEMF,.047,100V,10%
C21 . . . . . . . . . . . . . . . . .CAPACITOR-TAEL,39,20V,10%
C16 . . . . . . . . . . . .CAPACITOR-ALEL,2200,63V,+30/-10%
C30,C47,C95 . . . . . . . . . .CAPACITOR-TAEL,4.7,35V,10%
C15 . . . . . . . . . . . . . . . . .CAPACITOR-TAEL,39,10V,10%
C14,C20 . . . . . . . . . . . . . .CAPACITOR-TAEL,18,15V,10%
C39,C40 . . . . . . . . . . . . .CAPACITOR-TAEL,1.0,35V,10%
C25 . . . . . . . . . . . . .CAPACITOR-ALEL,6,150V,+50/-10%
C55 . . . . . . . . . . . . .CAPACITOR-ALEL,20,50V,+75/-10%
C13 . . . . . . . . . . . . . . . .CAPACITOR-PEF,.001,400V,10%
C18 . . . . . . . . . . . . .CAPACITOR-ALEL,50,25V,+75/-10%
C24,C26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27/50
C19 . . . . . . . . . . . .CAPACITOR-ALEL,3300,50V,+30/-10%
OCI2,OCI3 OPTOCOUPLER-PHOTO-SCR,400V,MCS2401
OCI1 . . . . . . . . . . .OPTOCOUPLER-PHOTO-Q,30V,4N35
X10 . . . . . . . . .IC-CMOS,INVERTER,SCHMITT,HEX,4584
X14,X17,X18 . . . . . . .IC-VOLTREF,ADJ,PRECISION,431I
X16 . . . . . . . . . . . . . . . .IC-VOLTREG,FIXED,3-T,(-),1A,5V
R3 . . . . . . . . . . . . .TRIMMER-MT,1/2W,10K,10%,LINEAR
R100 . . . . . . . . .RESISTOR-NETWORK,100,8-RESISTOR
C6,C8 . . . . . . . . . . . . . .CAPACITOR-CEMO,22P,100V,5%

C11,C32,C33,C34, . . . . .CAPACITOR-CEMO,0.1,50V,10%
C35,C36,C37,C38,C51,C52,C77,C78

C81,C82,C83,C846, . .CAPACITOR-CEMO,100P,100V,5%
C85,C8,C87,C88,C90,C91

C17 . . . . . . . . . . . . . . .CAPACITOR-CEMO,2700P,50V,5%

C1,C2,C3,C4,C5,C7, . .CAPACITOR-CEMO,.022,50V,20%
C9,C10,C27,C28,C31,C43,C44,C48,C49,C50,C56

J2 . . . . . . . . . . . . .CONNECTOR,PCB,WW,MALE,DIL,1X9
Q12 . . . . . . . . . . . . . . . . . . . . . . . . . . .HEATSINK ASBLY
DD1 . . . . . . . . . .MULTIPLE DIODE & HEAT SINK ASBLY
J9 . . . . . . . . . . . .CONNECTOR,MOLEX,MINI,PCB,10-PIN
J3 . . . . . . . . . . . .CONNECTOR,MOLEX,MINI,PCB,14-PIN
J5,J7,J8 . . . . . . . .CONNECTOR,MOLEX,MINI,PCB,4-PIN
J6 . . . . . . . . . . . . .CONNECTOR,MOLEX,MINI,PCB,6-PIN
J4 . . . . . . . . . . . . .CONNECTOR,MOLEX,MINI,PCB,8-PIN
R103 . . . . . . . .THERMISTOR-PTC,.02-0.47 OHMS,0.90A
X15 . . . . . . . . .POS VOLTAGE REG & HEAT SINK ASBLY
Q11 . . . . . . . . . . . . . .TRANSISTOR & HEAT SINK ASBLY
J1 . . . . . . . . . .CONNECTOR,PCB,WW,VERTICAL,16-PIN
R138 . . . . . . . . . . . . .TRIMMER-ST,1/2W,1K,10%,LINEAR
C29 . . . . . . . . . . . . . . . .CAPACITOR-PEF,0.22,100V,10%
C22,C23 . . . . . .CAPACITOR-PPEF,0.68,400V,10%,RIGID

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