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TOC

G-4

ELECTRICAL DIAGRAMS

G-4

PC BOARD ASSEMBLY - CONTROL BOARD (CODE 10574 ONLY)

 

 

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~.04

6.00

5.75

R175

3.75

 

LED1

 

 

 

R177

LED3

 

 

X9

D7

D4

D3

TP1

PRO-CUT 80 CONTROL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C70

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D6

R4

R5

R6

 

R7

R8

 

 

R9

 

 

R10

 

 

 

 

 

 

 

 

 

 

 

 

C67

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LED2

R176

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C51

 

 

 

 

 

 

 

 

 

R173

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X17

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R3

 

 

X7

 

 

 

 

 

 

 

 

 

 

 

 

D9

 

C72

 

 

 

R160

R158

 

R56

C30

R57

 

R174

C24

 

C71

C3

 

 

 

 

 

R2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C5

 

 

R79

C22

R78

 

 

 

 

 

 

R182

R97

R89

R81

R80

D23

 

C4

 

 

 

 

 

 

 

D5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C44

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R48

 

 

 

 

C45

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C31

 

 

 

 

 

 

 

 

 

R1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R188

 

 

 

 

 

 

R103

 

 

 

 

 

 

 

 

 

 

X1

 

 

 

 

 

R24

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C63

C65

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C7

 

 

 

 

 

C29

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C17

 

 

 

 

 

C66

 

 

 

 

 

 

 

 

 

R189

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R35

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C43

R70

R72

R46

 

R28

R40

R18

 

 

 

 

R73

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R190

R191

C53

R42

R96

 

 

 

 

 

C18

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R192

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R93

 

X6

 

 

 

 

 

 

C2

 

C68

R26

C8

 

C69

X4

 

 

 

R194

R193

 

 

 

 

 

D8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R19

 

 

 

 

C9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R17

 

 

 

 

R102

R87

R99

 

R29

R67

R58

R101

R100

R91

R37

C15

R94

 

R34

C16

R30

R36

R27

R11

R12

R157

R156

R165

R166

 

R167

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TP2

D1

D2

Q1

D19

R170

Q2

 

D22

R171

Q3

D24

R172

R38

C35

R39

C47

R32

C37

R33

C36

 

R14

R13

R164

C13

R76

D25

R153

C39

R155

R154

R152

R21

R82

J1

 

 

 

 

 

 

 

 

 

 

 

J3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J4

G3443-1

 

 

 

 

 

 

 

 

 

 

 

 

 

R137

R178

R108

 

 

 

 

 

 

 

C49

 

 

 

 

R68

R44

R69

R43

 

X11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C38

 

 

 

X15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R181

C34

C14

 

 

 

 

 

 

 

 

X10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X5

 

 

 

 

X16

 

 

C41

 

 

 

 

 

R84

R85

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R179

R106

R180

R149

 

R183

R184

DZ3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R98

 

 

 

R107

R23

R104

 

 

 

 

 

 

 

 

 

 

 

 

 

D21

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R88

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R77

 

 

R53

R55

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X2

 

 

 

 

 

 

 

C64

 

 

 

 

 

 

 

 

 

 

 

R64

 

 

 

 

 

 

R50

 

 

 

 

 

 

 

 

R109

 

 

C26

C28

 

 

 

 

 

 

R41

 

 

 

 

 

 

 

 

 

 

R60

 

 

 

 

 

 

 

C11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R25

 

R16

R15

R126

R20

R22

R142

C57

 

R116

 

 

R49

C23

 

 

 

 

 

 

 

R127

R128

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q4

 

 

 

C10

R83

 

D16

D18

 

 

 

R115

C40

 

R159

R47

 

 

 

R124

R125

D15

D17

 

R123

R122

R121

R120

C56

R117

R118

R52

R54

R45

C21

D20

 

C6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J2

 

 

 

 

C52

 

 

 

 

 

 

 

 

 

 

 

R31

 

 

Y1

 

 

 

 

 

 

 

 

 

 

 

 

 

C46

 

 

 

 

 

 

 

 

C12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R136

 

 

 

R132

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C25

 

 

R61

 

 

 

R133

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R62

 

 

 

R187

 

 

 

 

 

 

 

 

 

R63

 

 

 

C20

 

 

C19

C60

 

 

 

Q5

 

 

 

 

C55

 

 

 

 

 

 

 

 

 

 

 

C54

 

 

 

 

 

R114

R112

R195

C48

 

 

 

X12

 

 

 

 

 

 

R113

R139

R141

R135

C62

C61

R134

R129

R130

R131

C59

R65

C27

C58

R138

 

 

 

 

 

 

 

 

DZ2

 

 

 

R140

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C33

 

 

 

 

 

 

 

D13

 

D12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X14

 

 

 

 

 

 

 

 

 

 

 

C50

 

 

 

 

DZ1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D11

 

 

 

 

 

C42

 

 

 

 

 

 

 

 

D10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X13

 

 

 

 

 

 

 

 

R111

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R110

 

 

 

C32

 

 

 

 

R197

 

 

 

R196

 

 

 

 

 

J5

ITEM

 

REQ'D

PART NO.

 

DESCRIPTION

C1

)

 

1

)

S13490-92

)

3300/50

C2,C8,C10,C11,C13,C14,C17

)

30

)

S16668-5

)

.022/50

C20,C23,C24,C31,C34,C35

 

 

 

 

 

 

C36,C37,C38,C39,C40,C41

 

 

 

 

 

 

C47,C49,C51,C53,C55,C63

 

 

 

 

 

 

C64,C65,C66,C68,C69

 

 

 

 

 

 

C3

)

 

1

)

S13490-121

)

1000/35

C4,C18

)

 

2

)

S13490-63

)

.47/50

C5

)

 

1

)

S13490-71

)

100/50

C6

)

 

1

)

T11577-52

)

.0047 or .005/1400

C7

)

 

1

)

S13490-72

)

50/50

C9

)

 

1

)

S13490-93

)

27/35

C12,C60

)

 

2

)

S13490-126

)

.018/50V

C15,C16,C32,C33,C42,C58

)

8

)

S16668-11

)

.1/50

C71,C72

 

 

 

 

 

 

 

C19,C25,C50

)

 

3

)

S13490-25

)

4.7/35

C21,C26,C28,C30,C54,C57

)

8

)

S13490-42

)

1.0/35

C62,C67

 

 

 

 

 

 

 

C22,C43,C44

)

 

3

)

S16668-9

)

150pF/100

C27,C48

)

 

2

)

S16668-8

)

330pF/100

C29

)

 

1

)

S13490-135

)

1.0/50V

C45

)

 

1

)

S16668-4

)

2700pF/50

C46,C52

)

 

2

)

S16668-13

)

10pF/100

C56

)

 

1

)

S13490-108

)

.15/100

C59

)

 

1

)

S16668-3

)

100pF/100

C61

)

 

1

)

S13490-19

)

1.8/20

C70

)

 

1

)

S16668-10

)

4700pF/50

D1,D2,D3,D4,D5,D6,D7,D8,D9

)

16

)

T12199-1

)

1N4004

D14,D19,D20,D22,D23,D24

 

 

 

 

 

 

D25

 

 

 

 

 

 

 

D10,D11,D12,D13

)

 

4

)

T12705-37

)

1N5822 SCHOTTKY BARRIER DIODE

D15,D16,D17,D18

)

 

4

)

T12705-34

)

1N4936

D21

)

 

1

)

T12705-23

)

1N5818

DZ1,DZ2

)

 

2

)

T12702-19

)

1N4742A

DZ3

)

 

1

)

T12702-52

)

1N4733A

J1

)

 

1

)

S18248-4

)

HEADER

J2

)

 

1

)

S18248-10

)

HEADER

J3

)

 

1

)

S18248-16

)

HEADER

J4

)

 

1

)

S18248-6

)

HEADER

J5

)

 

1

)

S18248-8

)

HEADER

LED1,LED2,LED3

)

 

3

)

T13657-2

)

RED LED

Q1,Q2,Q3

)

 

3

)

T12704-68

)

2N4401

Q4

)

 

1

)

T12704-80

)

HEXFET TRANS. (SS)

Q5

)

 

1

)

T12704-69

)

2N4403

R1

)

 

1

)

T13165-16

)

1.0 OHM, 5W RESISTOR

R2,R46,R187

)

 

3

)

S19400-2671

)

2.67K 1/4W

R3,R30,R32,R33,R34,R36,R37

)

9

)

S19400-2430

)

243 1/4W

R38,R39

 

 

 

 

 

 

 

R4

)

 

1

)

S19400-30R1

)

30.1 1/4W

R5

)

 

1

)

S19400-6190

)

619 1/4W

R6

)

 

1

)

S19400-8251

)

8.25K 1/4W

R7,R190,R191,R193,R194

)

5

)

S19400-3921

)

3.92K 1/4W

R8

)

 

1

)

S19400-2001

)

2.0K 1/4W

R9,R15,R50,R64,R88,R103

)

7

)

S19400-1001

)

1K 1/4W

R113

 

 

 

 

 

 

 

R10,R42,R96

)

 

3

)

S19400-5110

)

511 1/4W

R11,R12,R13,R14

)

 

4

)

S19400-3320

)

332 1/4W

R16,R21

)

 

2

)

S19400-3322

)

33.2K 1/4W

R17,R23,R26,R27,R61,R62

)

31

)

S19400-1002

)

10K 1/4W

R63,R68,R69,R81,R84,R93

 

 

 

 

 

 

R94,R104,R106,R108,R134

 

 

 

 

 

 

R138,R139,R154,R156,R158

 

 

 

 

 

 

R160,R164,R165,R166,R178

 

 

 

 

 

 

R179,R180,R181,R182

 

 

 

 

 

 

R18

)

 

1

)

S24073-1

)

10K,1/2W,TRIMMER

R19,R53,R55,R57,R85,R149

)

7

)

S19400-5111

)

5.11K 1/4W

R157

 

 

 

 

 

 

 

R20,R22,R110,R111,R124

)

12

)

S19400-10R0

)

10 1/4W

R125,R126,R127,R128,R142

 

 

 

 

 

 

R196,R197

 

 

 

 

 

 

 

R24,R35

)

 

2

)

S19400-2210

)

221 1/4W

R25,R47,R49,R80,R89,R153

)

7

)

S19400-1003

)

100K 1/4W

R183

 

 

 

 

 

 

 

R28,R112,R115,R116,R117

)

7

)

S19400-3321

)

3.32K 1/4W

R118,R133

 

 

 

 

 

 

 

R29,R91,R102

)

 

3

)

S19400-8250

)

825 1/4W

R31

)

 

1

)

S19400-1004

)

1M 1/4W

R40

)

 

1

)

S19400-6191

)

6.19K 1/4W

R41,R60,R135,R184

)

 

4

)

S19400-1502

)

15K 1/4W

R43,R44,R45,R130,R136,R137

)

9

)

S19400-4751

)

4.75K

R170,R171,R172

 

 

 

 

 

 

 

R48

)

 

1

)

S19400-2802

)

28.0K 1/4W

R52,R54,R56

)

 

3

)

S19400-1000

)

100 1/4W

R58,R76,R99,R100

)

 

4

)

S19400-3741

)

3.74K 1/4W

R65,R129

)

 

2

)

S19400-2211

)

2.21K 1/4W

to Section TOC

to Master TOC

.25

0

0

 

 

 

9.00 ~.04

.25

.85

3.55

8.15

8.75

CAPACITORS = MFD/VOLTS

INDUCTANCE = HENRIES

RESISTANCE = OHMS

R67,R70,R87,R101

 

)

4

)

S19400-4752

)

47.5K 1/4W

R72,R195

 

)

2

)

S19400-1501

)

1.5K 1/4W

R73,R107

 

)

2

)

S19400-7681

)

7.68K 1/4W

R77,R82,R175,R177

 

)

4

)

S19400-1301

)

1.3K 1/4W

R78,R159

 

)

2

)

S19400-1211

)

1.21K 1/4W

R79,R83,R155,R167

 

)

4

)

S19400-2213

)

221K 1/4W

R97

 

)

1

)

S19400-8252

)

82.5K 1/4W

R98

 

)

1

)

S19400-2431

)

2.43K 1/4W

R109

 

)

1

)

S19400-6811

)

6.81K 1/4W

R114

 

)

1

)

S19400-5621

)

5.62K 1/4W

R120,R121,R122,R123

)

4

)

S19400-26R7

)

26.7 1/4W

R131

 

)

1

)

S19400-1212

)

12.1K 1/4W

R132

 

)

1

)

S16296-5

)

10K TRIMMER

R140,R141

 

)

2

)

S19400-2670

)

267 1/4W

R152

 

)

1

)

S19400-2002

)

20K 1/4W

R173

 

)

1

)

T10812-39

)

50K 1/2W TRIMMER

R174

 

)

1

)

S19400-6812

)

68.1K 1/4W

R176

 

)

1

)

S19400-4750

)

475 1/4W

R188

 

)

1

)

S19400-3922

)

39.2K 1/4W

R189,R192

 

)

2

)

T10812-68

)

1K 1/2W TRIMMER

TP1,TP2

 

)

2

)

T13640-15

)

15J

X1

)

 

1

)

S15128-16

)

IC,LT1014,LINEAR INTEGRATED CIRCUIT

X2

)

 

1

)

S15128-18

)

IC,33074A,OP-AMP,QUAD,HIGH-PERF

X3

)

 

1

)

S15128-4

)

IC,LM224,OP-AMP

Return

Return

3-19-99

G 3443-1B3

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.

PRO-CUT 80

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Image 102
Lincoln Electric SVM146-A service manual PC Board Assembly Control Board Code 10574 only, PRO-CUT 80 Control
Page 101 Page 103

SVM146-A specifications

Lincoln Electric's SVM146-A is a versatile and powerful multi-process welding machine designed for professionals in various industries. Known for its robustness and reliability, this machine excels in both performance and user-friendly features, making it a popular choice among welders.

One of the standout features of the SVM146-A is its multi-process capability, allowing users to perform MIG, TIG, and stick welding using a single unit. This versatility is enhanced by Lincoln Electric's innovative Auto-Set technology, which automatically adjusts the machine's settings based on the selected process and materials being welded. This feature significantly reduces the time spent on setup and helps ensure optimal weld quality, even for less experienced operators.

The SVM146-A is powered by a reliable inverter design, which provides greater efficiency compared to traditional transformer-based machines. This compact and lightweight design allows for easy transport, making it ideal for job sites or remote locations. The inverter technology also contributes to enhanced arc stability and better overall performance, providing high-quality welds in less time.

Another key characteristic of this welding machine is its robust construction, designed to withstand the rigors of heavy industrial use. The SVM146-A features a durable chassis and control panel, ensuring longevity and reliability under challenging working conditions. Additionally, its intuitive interface allows users to easily navigate settings and make adjustments as needed.

Safety is a paramount concern in welding applications, and the SVM146-A is equipped with several safety features, including over-temperature and over-voltage protection, ensuring that the machine operates safely even in demanding environments. It also features a start inhibit system, preventing the machine from being started under unsafe conditions.

The SVM146-A is compatible with a variety of welding accessories and consumables, enhancing its flexibility and usability across different applications. Whether it’s automotive repair, heavy fabrication, or maintenance work, this welding machine adapts to various tasks, making it a valuable addition to any professional's toolkit.

In conclusion, Lincoln Electric's SVM146-A stands out as a multi-process welding machine that combines advanced technology, robust design, and user-friendly features. It is engineered for performance and reliability, making it an excellent investment for professionals dedicated to achieving high-quality welds.
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