Electrical diagrams, Power mig 255c – Lincoln Electric POWER MIG SVM170-A User Manual
Page 106
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 (USED WITH)*
QTY
PART NUMBER DESCRIPTION
1
1
G4824-D
PC BOARD BLANK
2 (Q4)*
1
CF000003
6-32 X .375 ROUND HEAD MACHINE SCREW
3 (Q4)*
1
E106A-13
# 6 LOCK WASHER
4 (Q4)*
AS REQ E1868
THERMO JOINT COMPOUND
5 (X1)*
AS REQ E2861
RTV SEALANT
6 (Q4)*
1
S18104-1
HEAT SINK,ALUMINUM,EXTRUDED,FOR 1 TO-220
7 (X1)*
1
S20209-52
SOCKET,IC,PLCC,52-PIN
8 (Q4)*
1
T13746
6-32 HEX 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%
a
2
S16668-1
CAPACITOR,CEMO,22pF, 100V,5%
C15
1
S16668-8
CAPACITOR,CEMO,330pF,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,4700pF,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
ZENER DIODE,1W,6.2V,5%,1N4735A
J1
1
S18248-8
CONNECTOR,MOLEX,MINI,PCB,8-PIN
J2
1
S18248-14
CONNECTOR,MOLEX,MINI,PCB,14-PIN
J3
1
S18248-12
CONNECTOR,MOLEX,MINI,PCB,12-PIN
J4
1
S24020-10
CONNECTOR,MOLEX,MINI,PCB,10-PIN,TIN
J5
1
S18248-16
CONNECTOR,MOLEX,MINI,PCB,16-PIN
J6
1
S18248-6
CONNECTOR,MOLEX,MINI,PCB,6-PIN
J8
1
S18248-4
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
1
T12704-41
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,0.5-1.17 OHMS,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
1
M15101-10
IC,CMOS,MCU,ONE-TIME-PROM,PLCC,68HC711E9C
X2
1
M15102-3
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
REFER TO ELECTRONIC COMPONENT DATABASE FOR SPECIFICATIONS ON ITEMS LISTED BELOW
G-8