Lincoln Electric IDEALARC SP-250 Service Manual page 106

G-6
Item
W1 . . . . . . . . . . . . . . . .20 AWG UNINSULATED JUMPER
C81 . . . . . . . . . . . . . CAPACITOR-ALEL,50,25V,+75/-10%
X10 . . . . . . . . IC-CMOS,INVERTER,SCHMITT,HEX,4584
X16 . . . . . . . . . . . . . . . . . . . . . . .VOLTAGE REGULATOR
R48 . . . . . . . . . . . . TRIMMER-MT,1/2W,10K,10%,LINEAR
C30,C31 . . . . . . . . . . . CAPACITOR-CEMO,22P,100V,5%
C10,C11,C12, . . . . . . CAPACITOR-CEMO,100P,100V,5%
C13,C14,C15,C16,C17,C18,C19
C36 . . . . . . . . . . . . . . CAPACITOR-CEMO,2700P,50V,5%
C2,C3,C4,C5,C33, . . . CAPACITOR-CEMO,.022,50V,20%
C40,C41,C52,C53,C57,C60,C62,C63,C100,C101,C102,
C103,C104,C105,C106,C107,C117
J2 . . . . . . . . . . . . CONNECTOR,PCB,WW,MALE,DIL,1X9
Q30 . . . . . . . . . . . . . . . . . . . . . . . . . . HEAT SINK ASBLY
DD1 . . . . . . . . . . . . . . . . . . DIODE & HEAT SINK ASBLY
J7,J8 . . . . . . . . . . CONNECTOR,MOLEX,MINI,PCB,4-PIN
J9 . . . . . . . . . . . . CONNECTOR,MOLEX,MINI,PCB,6-PIN
J4 . . . . . . . . . . . . CONNECTOR,MOLEX,MINI,PCB,8-PIN
R61 . . . . . . . . THERMISTOR-PTC,.02-0.47 OHMS,0.90A
X15 . . . . . . . . POS VOLTAGE REG & HEAT SINK ASBLY
Q24 . . . . . . . . . . . . . TRANSISTOR & HEAT SINK ASBLY
Q20 . . . . . . . . . . . . . . TRANSISTOR & HEATSINK ASBLY
D1,D2,D3,D4,D5,D6,D7,D8, . . . . DIODE-AXLDS,1A,400V
D21,D22,D23,D24,D33,D34,D40,D41,D50,D51,D52,D53,
D54,D60,D61,D62,D70,D71,D72,D73,D74,D75,D76,D77,
D78,D79,D80,D82,D83,D85,D86,D87,D90,D91,D92,D93
D9,D10,D11,D12,D13,D14 . . . . DIODE-AXLDS,1A,1000V
L1,L4,L5,L6,L7,L8, CHOKE-330UH,10%,110MA,MOLDED
L10,L11,L12,L13,L14
L2,L3 . . . . . . . . CHOKE-390UH,5%,225MA,CONFORMAL
R143 . . . . . . . . . . . . . . . . . . RESISTOR-WW,5W,3.3K,5%
TP1,TP2 . . . . . . . . . . . . . . . . . . MOV-75VRMS,22J,14MM
R70 . . . . . . . . . . . . . . . . . . RESISTOR-CC,1/2W,10M,5%
R140,R141 . . . . . . . . . . RESISTOR-WW,7W,0.25,5%,SQ
C21,C34 . . . . . . . . . . . . . CAPACITOR-TAEL,4.7,35V,10%
C56 . . . . . . . . . . . . . . . . . CAPACITOR-TAEL,39,10V,10%
C55,C79 . . . . . . . . . . . . . CAPACITOR-TAEL,18,15V,10%
C91,C92 . . . . . . . . . . . . . CAPACITOR-TAEL,1.0,35V,10%
C51 . . . . . . . . . . . . . CAPACITOR-ALEL,20,50V,+75/-10%
C54 . . . . . . . . . . . . . . . . CAPACITOR-PEF,.001,400V,10%
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.
ELECTRICAL DIAGRAMS
G2252 CONTROL PC BOARD
Identification
IDEALARC SP-250
Item
C61,C64 . . . . . . . . . . . . . CAPACITOR-PCF,0.27,50V,20%
C73 . . . . . . . . . . . CAPACITOR-ALEL,3300,50V,+30/-10%
X14,X17,X18 . . . . . . IC-VOLT REF,ADJ,PRECISION,431I
X22 . . . . . . . . IC-OP-AMP,SINGLE,PRECISION,OP-27GZ
C20,C35,C108, . . . . . .CAPACITOR-CEMO, 0.1, 50V, 10%
C109,C110,C111,C112,C113,C114,C115,C116
J3 . . . . . . . . . . . CONNECTOR,MOLEX,MINI,PCB,12-PIN
J5 . . . . . . . . . . . CONNECTOR,MOLEX,MINI,PCB,14-PIN
J6 . . . . . . . . . . . CONNECTOR,MOLEX,MINI,PCB,16-PIN
J1 . . . . . . . . . CONNECTOR,PCB,WW,VERTICAL,16-PIN
R79 . . . . . . . . . . . . . TRIMMER-ST,1/2W,1K,10%,LINEAR
C42 . . . . . . . . . . . . . . . . CAPACITOR-PEF,0.22,100V,10%
C70,C75 . . . . . . CAPACITOR-PPEF,0.68,400V,10%,RIGID
C71,C72,C80, . . . CAPACITOR-CD,.0047/.005,1400V,20%
C90,C93
R119 . . . . . . . . . . . . . . . . . . RESISTOR-WW,7W,0.25,1%
DZ2 . . . . . . . . . . . . ZENER DIODE-1W,16V,5%,1N4745A
DZ1 . . . . . . . . . . . . ZENER DIODE-1W,15V,5%,1N4744A
DZ7 . . . . . . . . . . . . ZENER DIODE-5W,10V,5%,1N5347B
DZ6 . . . . . . . . . . . . ZENER DIODE-1W,6.2V,5%,1N4735A
DZ3,DZ4,DZ5 . . . . . ZENER DIODE-1W,18V,5%,1N4746A
Q11 . . . . . . . . TRANSISTOR-NMF,T220,15A,60V,15N06E
D20 . . . . . . . . . . . . . . DIODE-AXLDS,1A,30V,SCHOTTKY
R144,R152 . . . . . . . . . . . . . . . RESISTOR-CC,2W,10,10%
TP5 . . . . . . . . . . . . . . . . . . . . MOV-130VRMS,38J,14MM
TP6,TP7 . . . . . . . . . . . . . . . . . . MOV-50VRMS,15J,14MM
TP4 . . . . . . . . . . . . . . . . . . . . MOV-150VRMS,80J,20MM
R74,R153 . . . . . . . . . . . . . RESISTOR-WW,5W,1K,5%,SQ
R145,R162,R175 . . . . . . . RESISTOR-WW,5W,50,5%,SQ
R57,R58 . . . . . . . . . . . . . . RESISTOR-WW,5W,20,5%,SQ
C50 . . . . . . . . . . . . . . CAPACITOR-PEMF,.047,100V,10%
C74 . . . . . . . . . . . . . . . . . CAPACITOR-TAEL,39,20V,10%
C78 . . . . . . . . . . . CAPACITOR-ALEL,2200,63V,+30/-10%
R14,R17,R20,R30,R31,R32, RESISTOR-MF,1/4W,100,1%
R41,R42,R43,R44,R45,R54,R55,R56,R65,R94,
R103,R108,R121,R129,R148,R192,R193
R6,R7,R8,R9,R60,R62, . . RESISTOR-MF,1/4W,1.00K,1%
R63,R64,R72,R163,R176
R1,R2,R3,R4,R5,R13, . . . RESISTOR-MF,1/4W,10.0K,1%
R16,R19,R24,R25,R78,R80,R93,R96,R124,R134
G-6
Identification