Lincoln Electric SVM170-A Welding System User Manual


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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.
ELECTRICAL DIAGRAMS
G-8
POWER MIG 255C
PC BOARD ASSEMBLY - CONTROL - (G4824-2D1)
ITEM (USEDWITH)* QTY PART NUMBER DESCRIPTION
11G4824-D PCBOARD BLANK
2
(
Q4
)
*1CF000003 6-32X.375 ROUNDHEAD MACHINESCREW
3
(
Q4
)
*1E106A-13 #6 LOCKWASHER
4
(
Q4
)
*ASREQE1868 THERMOJOINT COMPOUND
5
(
X1
)
*ASREQ E2861 RTVSEALANT
6
(
Q4
)
*1S18104-1 HEATSINK,ALUMINUM,EXTRUDED,FOR 1TO-220
7
(
X1
)
*1S20209-52 SOCKET,IC,PLCC,52-PIN
8(Q4)* 1T13746 6-32HEX NUT
REFERENCES QTY PART NUMBER DESCRIPTION
C3,C4, C9,C65 4 S13490-42 CAPACITOR,TAEL,1.0,35V,10%
C5,C6, C18,C19,C35,
C51,C54
CAPACITOR,CD,.0047/.005,1400V,20%
C7,C66 2 S13490-181 CAPACITOR,ALEL,22,63V,20%
C8,C14, C20,C29,C36,
C37,C38, C39,C43,C48,
C49,C52, C53,C55,C56,
C62,C63, C64
CAPACITOR,CEMO,.022,50V,20%
C10,C17, C22,C23,C24,
C25,C26, C30,C31,C32,
C33,C34, C40,C41,C46,
C57,C58, C60,C61,C71,
C72
,
C73
CAPACITOR,CEMO,0.1, 50V,10%
a2S16668-1 CAPACITOR,CEMO,22
p
F,100V,5%
C15 1 S16668-8 CAPACITOR,CEMO,330
p
F,100V,5%
C16 1 S13490-179 CAPACITOR,ALEL,1000,35V,20%
C27 1 S13490-182 CAPACITOR,ALEL,3300,63V,20%
C28 1 S13490-197 CAPACITOR,ALEL,82,35V,20%,LOW-ESR
C47 1 S16668-6 CAPACITOR,CEMO,4700
p
F,50V,10%
C67,C68 2 S20500-2 CAPACITOR,PPMF,0.47,630V,10%,BOX
C69,C70 2 T11577-46K CAPACITOR,CD,.05,600V,+80/-20%
D8,D9, D10,D11,D12,
D13,D14, D16,D19,D20,
D21,D22, D24,D25,D29,
D33,D34, D35,D36,D38,
D39,D41, D46,D47,D48,
D49,D50, D55,D56,D57,
D58
,
D59
DIODE,AXLDS,1A,400V
D23,D37 2 T12705-23 DIODE,SCHOTTKY,AXLDS,1A,30V,1N5818
DZ2,DZ3, DZ4,DZ5,DZ6 5 T12702-45 ZENER DIODE,1W,18V,5%,1N4746A
DZ7,DZ8 2 T12702-52 ZENER DIODE,1W,5.1V,5%,1N4733A
DZ9,DZ10, DZ11,DZ12,
DZ13,DZ14
ZENERDIODE,1W,6.2V,5%,1N4735A
J1 1S18248-8 CONNECTOR,MOLEX,MINI,PCB,8-PIN
J2 1S18248-14 CONNECTOR,MOLEX,MINI,PCB,14-PIN
J3 1S18248-12 CONNECTOR,MOLEX,MINI,PCB,12-PIN
J4 1S24020-10 CONNECTOR,MOLEX,MINI,PCB,10-PIN,TIN
J5 1S18248-16 CONNECTOR,MOLEX,MINI,PCB,16-PIN
J6 1S18248-6 CONNECTOR,MOLEX,MINI,PCB,6-PIN
J8 1S18248-4 CONNECTOR,MOLEX,MINI,PCB,4-PIN
L3,L4 2 T12218-7 CHOKE,330UH,10%,110MA,MOLDED
OCI1,OCI2 2 S15000-30 OPTOCOUPLER,TRIAC,DRV,RANDOM,800V
OCI3 1 S15000-31 OPTOCOUPLER,TRIAC,DRV,RANDOM,800V
Q1,Q2,Q3, Q6,Q11, Q12,
Q13,Q14
TRANSISTOR,NPN,TO226,0.5A,40V,2N4401
Q4 1T12704-41 TRANSISTOR,N,TO220,8A,150V,MJE15030
Q5,Q9,Q15,Q16 4 T12704-35 TRANSISTOR,NPN,TO226,0.5A, 300V,MPS-A42
Q7,Q10,Q18,Q19 4 T12704-88 TRANSISTOR,NMF,TO220,45A,100V
(
SS
)
Q8,Q17 2 T12704-69 TRANSISTOR,PNP,TO226,0.5A, 40V,2N4403
Q20,Q21 2 T12704-109 TRANSISTOR,NMF,IPAK,TO-251,10A,100V
(
SS
)
R2,R30, R42,R45, R70,
R90,R103, R148,R182,
R188
RESISTOR,MF,1/4W,4.75K,1%
R13,R22, R93,R94,R132 5 S19400-6810 RESISTOR,MF,1/4W,681,1%
R14,R15, R27,R123 4 S19400-15R0 RESISTOR,MF,1/4W,15.0,1%
R18,R20, R24,R80 4 S19400-5620 RESISTOR,MF,1/4W,562,1%
R19,R21, R58,R83,R144,
R178,R179, R180
RESISTOR,MF,1/4W,2.21K,1%
R25,R26, R49,R50 4 S25365-51R0 RESISTOR,STAND-UP,WW,5W,51.0,5%
R28,R61, R142,R143,
R147,R191
RESISTOR,MF,1/4W,6.81K,1%
R29,R100, R110 3 S19400-1501 RESISTOR,MF,1/4W,1.50K,1%
R31,R106, R150,R193 4 S19400-5621 RESISTOR,MF,1/4W,5.62K,1%
R32 1 S19400-2672 RESISTOR,MF,1/4W,26.7K,1%
R33,R38, R79,R149 4 S19400-2212 RESISTOR,MF,1/4W,22.1K,1%
R34,R40 2 S19400-33R2 RESISTOR,MF,1/4W,33.2,1%
R35,R51, R181 3 S19400-1502 RESISTOR,MF,1/4W,15.0K,1%
R36 1 S19400-2671 RESISTOR,MF,1/4W,2.67K,1%
R37,R59, R66,R69,R73,
R74,R86, R87
RESISTOR,MF,1/4W,44.2K,1%
R39,R68, R71,R72,R91,
R92,R111
RESISTOR,MF,1/4W,3.32K,1%
R41,R65, R75,R84,R112,
R113,R133, R134,R137,
R138,R139, R140,R141
RESISTOR,MF,1/4W,10.0K,1%
R43,R183 2 S19400-1004 RESISTOR,MF,1/4W,1.00M,1%
R44,R47, R109,R145,
R146
RESISTOR,MF,1/4W,1.00K,1%
R48 1 S19400-2801 RESISTOR,MF,1/4W,2.80K,1%
R52,R98 2 S19400-3011 RESISTOR,MF,1/4W,3.01K,1%
R53 1 S19400-5111 RESISTOR,MF,1/4W,5.11K,1%
R54 1 S25365-00R1 RESISTOR,STAND-UP,WW,5W,0.1,5%
R55,R56 2 S19400-26R7 RESISTOR,MF,1/4W,26.7,1%
R57 1 S19400-2430 RESISTOR,MF,1/4W,243,1%
R60 1 S19400-2432 RESISTOR,MF,1/4W,24.3K,1%
R62,R63, R76,R77,R78,
R82,R95, R105,R124,
R125,R126, R127,R128,
R129,R130, R131
RESISTOR,MF,1/4W,100,1%
R64,R67 2 S19400-5110 RESISTOR,MF,1/4W,511,1%
R88,R89 2 S19400-1622 RESISTOR,MF,1/4W,16.2K,1%
R99 1 S19400-1652 RESISTOR,MF,1/4W,16.5K,1%
R101,R102 2 S19400-1372 RESISTOR,MF,1/4W,13.7K,1%
R104,R152 2 S19400-7500 RESISTOR,MF,1/4W,750,1%
R107,R151 2 S19400-4750 RESISTOR,MF,1/4W,475,1%
R108 1 S19400-2670 RESISTOR,MF,1/4W,267,1%
R116 1 S19400-2802 RESISTOR,MF,1/4W,28.0K,1%
R135,R136, R187 3 S19400-4752 RESISTOR,MF,1/4W,47.5K ,1%
R153,R154, R155 3 S18380-14 THERMISTOR,PTC,500OHMS,28mA
R156,R157 2 S19400-3320 RESISTOR,MF,1/4W,332,1%
R158,R159 2 S19400-2210 RESISTOR,MF,1/4W,221,1%
R160,R161, R162,R163,
R184,R185, R186,R190
RESISTOR,MF,1/4W,2.00K,1%
R164 1 S18380-5 THERMISTOR,PTC,0.5-1.17OHMS,0.5A
R167,R168 2 S25365-10R0 RESISTOR,STAND-UP,WW,5W,10.0,5%
R169,R170, R171,R172,
R173,R174, R175
RESISTOR,MF,1/4W,100K,1%
R176,R177 2 S19400-2000 RESISTOR,MF,1/4W,200,1%
R192 1 S19400-3322 RESISTOR,MF,1/4W,33.2K,1%
TP1,TP2 2 T13640-15K MOV,50VRMS,15J,14MM
TP3,TP4 2 T13640-9K MOV,75VRMS,22J,14MM
TP7,TP8, TP9 3 T13640-18 MOV,320VRMS,150J,20MM
TRI1 1 S15161-27 TRIAC,TO220,8A,800V
X1 1M15101-10 IC,CMOS,MCU,ONE-TIME-PROM,PLCC,68HC711E9C
X2 1M15102-3 IC,CMOS,UNDERVOLT-SENSING,RESET,MCU(SS)
X3 1 S17900-8 IC,CMOS,INVERTER,SCHMITT,HEX,HC14A(SS)
X4,X5 2 S15128-11 IC,COMPARATOR,QUAD,2901N
X6 1 S15128-16 IC,OP-AMP,QUAD,HIGH-PERF,1014
X8,X14 2 S15018-4 IC,CMOS,INVERTER,SCHMITT, HEX,4584(SS)
X9,X13 2 S15018-6 IC,CMOS,SWITCH,ANALOG,QUAD,4066(SS)
X10,X11 2 S15128-10 VOLTAGE REF,ADJ,PRECISION,431I
X12 1 S15128-5 IC,VOLT REG,FIXED,3-T,(+),1A,5V,TO220
X15 1 S15128-4 OP-AMP,QUAD,GEN-PURPOSE,224N
Y1 1 S16665-11 CRYSTAL,QUARTZ,8.000MHZ,ATS-49
REFERTOELECTRONIC COMPONENT DATABASEFOR SPECIFICATIONS ONITEMS LISTEDBELOW
G-8
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