Manuals / Lincoln Electric / Power Tools / Welder

Lincoln Electric SVM187-A service manual PC Board Assembly IDLER/ENGINE Shutdown PC Board L12400-2

Models: SVM187-A

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SAE-400 SEVERE DUTY

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G-12

 

 

 

ELECTRICAL DIAGRAMS

 

 

 

 

G-12

PC BOARD ASSEMBLY - IDLER/ENGINE SHUTDOWN PC BOARD (L12400-2)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2-L12400

ENGINEERING CONTROLLED

 

CHANGE DETAIL: REVISED ITEM 13

 

ITEM (USED WITH)*

QTY

PART NUMBER

DESCRIPTION

 

 

 

MANUFACTURER: No

 

 

1

 

1

SEE BLANK INFO PC BOARD BLANK

 

 

 

 

 

 

 

 

 

 

2

(D6)*

1

CF000003

6-32 X .375 ROUND HEAD MACHINE SCREW

 

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NOTES:

N.A. CAUTION: THIS DEVICE IS SUBJECT TO DAMAGE BY STATIC ELECTRICITY. SEE E2454 BEFORE HANDLING.

N.B. SECURE P.C. BOARD ASSEMBLY IN PLACE WITH ITEM (10). (2 PLACES, 5.3 +/- .5 IN. LBS).

N.C. PRINT “L12400-2F0” ON ITEM (11) AND APPLY TO ITEM (9) IN AREA SHOWN. N.D. DO NOT COAT WITH ENCAPSULATION MATERIAL.

N.E. CONNECTORS MUST BE GREASED WITH ITEM(12) PRIOR TO ENCAPSULATION.

N.F. ENCAPSULATE WITH ITEM(13) EXCEPT WHERE INDICATED ABOVE.

9

MAKE PER E1911

TEST PER E4151-I

CAPACITORS =MFD/VOLTS

RESISTORS =OHMS

SCHEMATIC REFERENCE: G4828-2F0

N.B.

3

(D11)*

1

CF000004

6-32 X .500 ROUND HEAD MACHINE SCREW

 

4

(D6,D11)*

2

E106A-13

# 6 LOCK WASHER

 

5

(D6,D11)*

AS REQ E1868

THERMO JOINT COMPOUND

 

6

(D6)*

1

S18104-3

HEAT SINK,ALUMINUM,EXTRUDED,FOR 1 TO-220

 

7

(D11)*

1

S18104-7

HEAT SINK,ALUMINUM,EXTRUDED,FOR 1 TO-247,1.5

 

8

(D11)*

1

S9262-3

# 6 OR # 8 PLAIN WASHER

 

9

 

1

M19436-2

POTTING TRAY

 

10

 

2

S8025-80

SELF TAPPING SCREW

 

11

 

1

E3768-4

LABEL

 

12

 

AS REQ E3539

ELECTRICAL INSULATING COMPOUND

 

13

 

200 g

E2527

EPOXY ENCAPSULATING RESIN

 

 

REFER TO ELECTRONIC COMPONENT DATABASE FOR SPECIFICATIONS ON ITEMS LISTED BELOW

 

 

 

 

 

 

REFERENCES

QTY

PART NUMBER

DESCRIPTION

N.D.

B1, B2, B3, B4

4

T13157-24

CONNECTOR,TAB,QC,VERTICAL,1/4,EXTENDED

 

C1, C2, C3, C4, C5, C6,

16

S16668-11

CAPACITOR,CEMO,0.1, 50V,10%

 

C7, C8, C9, C10, C11,

 

C12, C13, C19, C21, C24

 

 

 

 

C14, C15

2

S16668-6

CAPACITOR,CEMO,4700pF,50V,10%

 

C16, C18

2

S13490-173

CAPACITOR,PEMF,1.0,63V,10%

 

C17

1

S13490-197

CAPACITOR,ALEL,82,35V,20%,LOW-ESR

 

C20, C23

2

S16668-5

CAPACITOR,CEMO,.022,50V,20%

 

C22

1

S13490-19

CAPACITOR,TAEL,1.8,20V,10%

 

C25

1

S16668-3

CAPACITOR,CEMO,100pF, 100V,5%

 

D1, D2, D7, D13

4

T12199-1

DIODE,AXLDS,1A,400V

 

D3, D8, D12

3

T12705-59

DIODE,AXLDS,3A,600V,UFR

 

D4, D9, D14

3

T12705-34

DIODE,AXLDS,1A,400V,FR,1N4936

 

D5, D6, D10

3

T12705-51

DIODE,FR,TO220,14A,200V,MUR1520

 

D11

1

T12705-62

DIODE,TO247,60A,800V,60EPS08

 

DZ1, DZ2, DZ3, DZ7, DZ8

5

T12702-29

ZENER DIODE,1W,15V,5%,1N4744A

 

DZ4

1

T12702-33

ZENER DIODE,5W,10V,5%,1N5347B

 

DZ5

1

T12702-58

ZENER DIODE,5W,16V,5%,1N5353B

N.D., N.E.

DZ6

1

T12702-52

ZENER DIODE,1W,5.1V,5%,1N4733A

J31

1

S18248-10

CONNECTOR,MOLEX,MINI,PCB,10-PIN

N.D., N.E.

J32

1

S18248-4

CONNECTOR,MOLEX,MINI,PCB,4-PIN

N.D., N.E.

J33

1

S18248-6

CONNECTOR,MOLEX,MINI,PCB,6-PIN

 

Q1, Q2, Q9, Q14, Q15

5

T12704-37

TRANSISTOR,P,TO220,3A,100V,TIP32C1

 

Q3, Q4, Q10, Q16, Q17,

 

 

 

IDLER/ENGINE

SHUTDOWN

2-L12400

R86

DZ3

Q20

Q19

R87 R35

DZ2

R39

Q5

Q3

R85 R56 R72

 

C23

C18 DZ8

R76

Q21

R51

Q17 R50

Q11

Q10

R55 R46

C19 R89

C22

R91

C25 R37 R7

R38

C13 R43

R22 R64

C15

 

C11

 

 

 

 

 

 

 

 

 

 

 

 

R71

 

 

 

R58

 

R52

 

X7

 

 

 

 

 

 

C1

R28

R16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R48

 

 

 

 

 

 

 

 

 

 

X5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R54

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DZ7

 

 

 

 

X2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R19

 

R18

 

 

 

 

 

Q7

 

Q24

 

 

Q8

 

 

Q25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R14

 

C14

 

 

D11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R75

 

R41

 

R90

R27

R29 R21

C16

C2

DZ6

R17 R15

 

 

C10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q23

 

R11

 

 

 

 

 

 

 

 

 

X4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FTP1

 

 

 

D4

 

 

 

D5

 

 

B3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q18, Q19

7

T12704-68

TRANSISTOR,NPN,TO226,0.5A,40V,2N4401

 

Q5, Q11, Q20, Q21, Q22,

6

T12704-69

TRANSISTOR,PNP,TO226,0.5A, 40V,2N4403

 

Q29

N.A.

 

 

 

Q6, Q27, Q28

3

T12704-107

TRANSISTOR,PMF,TO220,40A,100V,IRF5210(SS)

N.A.

Q7, Q8, Q12, Q13, Q23,

8

T12704-108

TRANSISTOR,NMF,TO220,80A,100V,IRF8010(SS)

 

Q24, Q25, Q26

 

 

 

 

Q30

1

T12704-47

TRANSISTOR,PNP,TO226,0.5A, 300V,MPS-A92

 

R1, R2, R3, R4, R5

5

S19400-1500

RESISTOR,MF,1/4W,150,1%

 

R6, R83

2

S19400-1501

RESISTOR,MF,1/4W,1.50K,1%

 

R7, R8

2

S19400-4751

RESISTOR,MF,1/4W,4.75K,1%

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Return to Master TOC

 

 

B1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q13

 

X3

 

C12

 

 

Q16

C4

X6

C9

R9, R10, R11, R12, R13,

14

S19400-2212

RESISTOR,MF,1/4W,22.1K,1%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R15, R46, R47, R54, R65,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R47

R53

 

R68

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D9

 

 

 

 

 

Q29

 

R70

 

R66, R67, R92, R93

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R13

 

 

 

 

 

 

 

 

 

 

 

 

Q6

 

 

Q28

Q27

 

 

 

 

 

 

Q2

Q9

 

 

 

 

R10

 

 

C20

 

R14, R16, R17, R18, R35,

6

S19400-3322

RESISTOR,MF,1/4W,33.2K,1%

 

 

 

 

 

D3

 

 

 

 

 

Q26

 

Q12

 

 

 

 

 

 

 

 

 

 

R8

R92

 

 

 

 

 

 

 

 

 

 

 

 

R74

R57

 

 

 

 

 

 

 

R88

R36 R12

 

 

R73

R84

 

C6

 

R48

 

 

 

J31

 

 

 

 

 

 

 

 

 

 

 

 

R60

R59

 

 

 

C21

 

C7

 

R19

1

S19400-1622

RESISTOR,MF,1/4W,16.2K,1%

 

 

 

 

 

 

 

 

 

 

 

 

 

R63

 

 

 

Q15

 

 

C3

DZ4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R66

 

 

R6

R20

1

S19400-2671

RESISTOR,MF,1/4W,2.67K,1%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C8

 

 

 

 

 

 

 

 

 

 

FTP5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q1

 

 

 

X8

 

R4

 

R21, R22, R50

3

S19400-6812

RESISTOR,MF,1/4W,68.1K,1%

 

R93

 

 

 

 

 

 

D10

 

 

 

 

 

 

 

 

 

 

 

 

 

Q4

 

R23, R25, R27, R28, R37,

 

 

 

 

 

 

 

 

 

 

 

 

 

B4

 

 

R65

 

R80

R81

R67

 

 

D8

D12

 

 

 

10

S19400-1002

RESISTOR,MF,1/4W,10.0K,1%

 

 

 

 

 

 

 

 

 

D6

 

 

 

 

 

 

 

 

 

 

 

 

R51, R68, R70, R71, R72

 

 

 

 

 

 

 

 

 

 

FTP4

 

FTP6

 

 

 

 

 

 

 

 

 

 

 

2

S19400-1333

RESISTOR,MF,1/4W,133K,1%

 

 

 

 

 

 

 

 

 

 

C17

 

 

 

 

 

Q14

 

C24

D13

D7 R3

R2 R1 R5

R29, R52

 

 

 

 

 

 

 

 

 

 

R44

R23

 

 

 

 

 

 

 

R94

R95

TP2

 

 

 

 

 

 

 

 

 

 

 

 

R34

 

 

 

 

 

 

 

 

R69

 

 

 

R30, R31

2

S19400-68R1

RESISTOR,MF,1/4W,68.1,1%

R96

TP3

R40

DZ1

Q30

Q18

Q22

R77

R31

 

R33

R79

 

 

C5 R25

R61

R62

 

R82

 

 

 

 

 

 

 

R33

1

S19400-3321

RESISTOR,MF,1/4W,3.32K,1%

 

D2

D1

 

 

 

 

 

 

B2

 

R34, R36, R53, R73

4

S19400-1001

RESISTOR,MF,1/4W,1.00K,1%

R78

R30

X1

 

 

 

 

 

J33

J32

 

 

 

 

 

 

D14

 

 

 

 

 

 

DZ5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R38

1

S19400-2213

RESISTOR,MF,1/4W,221K,1%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R39, R56, R85, R86, R87

5

S19400-3320

RESISTOR,MF,1/4W,332,1%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R40, R55, R57, R74, R75,

9

S19400-1000

RESISTOR,MF,1/4W,100,1%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R76, R77, R78, R79

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

S19400-1821

RESISTOR,MF,1/4W,1.82K,1%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R41, R84, R88, R94, R95

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R43, R58, R64, R89

4

S19400-2673

RESISTOR,MF,1/4W,267K,1%

 

 

 

N.C.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R44, R59, R60, R61, R62,

7

S25365-51R0

RESISTOR,STAND-UP,WW,5W,51.0,5%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N.E.

 

 

 

 

R80, R81

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

S18380-8

THERMISTOR,PTC,6.7OHMS,320MA

 

 

 

 

 

 

 

11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R63, R82

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R69

1

S19400-2000

RESISTOR,MF,1/4W,200,1%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R90

1

S19400-1212

RESISTOR,MF,1/4W,12.1K,1%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R91

1

S19400-8251

RESISTOR,MF,1/4W,8.25K,1%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R96

1

T12731-9

RESISTOR,METAL FILM,1/2W,470,2%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TP2, TP3

2

T13640-26

MOV,14VRMS,100J,20MM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X1

1

S15128-10

VOLTAGE REF,ADJ, PRECISION,431I

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X2, X3, X7, X8

4

S15128-11

IC,COMPARATOR,QUAD,2901N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N.A. X4, X5

2

S15018-13

IC,CMOS,TIMER,PROGRAMMABLE,4536(SS)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N.A. X6

1

S15018-15

IC,CMOS,GATE,NAND,2-INPUT,QUAD,SCHM(SS)

 

PROPRIETARY & CONFIDENTIAL:THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OWNED BY LINCOLN GLOBAL, INC. AND MAY NOT BE DUPLICATED, COMMUNICATED

 

 

 

 

TO OTHER PARTIES OR USED FOR ANY PURPOSE WITHOUT THE EXPRESS WRITTEN PERMISSION OF LINCOLN GLOBAL, INC.

 

 

 

 

MANUFACTURING TOLERANCE PER E2056

DESIGN INFORMATION

SCALE:

EQUIPMENT TYPE:

 

ENGINE WELDERS

1

1

 

 

UNLESS OTHERWISE SPECIFIED TOLERANCE:

 

EDGE

 

ON 2 PLACE DECIMALS IS ± .02 in. (± 0.5 mm)

 

 

1:1

 

 

PAGE ___ OF ___

 

DRAWN BY:

MAP

 

 

 

ON 3 PLACE DECIMALS IS ± .002 in. (± 0.05 mm)

IF PRINTED

SUBJECT: IDLER/ENGINE SHUTDOWN P.C. BOARD

DOCUMENT

 

DOCUMENT

 

MATERIAL TOLERANCE (" t ") TO AGREE

ENGINEER:

BAM

 

@ A2 SIZE

NUMBER:

 

REVISION:

 

 

ON ALL ANGLES IS ± .5 OF A DEGREE

 

 

 

 

 

 

 

L12400-2

 

 

SOLID

 

DO NOT SCALE THIS DRAWING

APPROVED:

-

INCH

DISPOSITION: UF

DATE:

9/28/2006 NUMBER: CRM34402

L12400-1

 

E

 

WITH PUBLISHED STANDARDS.

 

 

UNITS:

MATERIAL

APPROVAL

PROJECT

REFERENCE:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STRB

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.

Page 140 Page 142
Page 141
Image 141
Lincoln Electric SVM187-A service manual PC Board Assembly IDLER/ENGINE Shutdown PC Board L12400-2
Page 140 Page 142

SVM187-A specifications

The Lincoln Electric SVM187-A is a cutting-edge welding machine designed for professional welders and industrial applications. Known for its reliability and performance, it stands out in the competitive welding equipment market. This versatile machine is structured to handle various welding processes, making it a popular choice among users.

One of the primary features of the SVM187-A is its multifunctional capabilities. It supports MIG, TIG, and Stick welding, allowing users to switch between different welding techniques seamlessly. This flexibility makes it suitable for diverse applications, whether working on automotive repairs, metal fabrication, or construction projects. Additionally, the machine is equipped with a robust power output, ranging from low to high amperage settings, enabling users to tackle a wide array of materials, including mild steel, stainless steel, and aluminum.

The SVM187-A incorporates advanced inverter technology, which ensures increased efficiency and reduced energy consumption. This technology leads to a more compact design, making the unit portable and easy to transport. The lightweight construction of the machine does not compromise its durability; it is built with high-quality materials to withstand the rigors of a professional workshop.

Another notable characteristic of the SVM187-A is its user-friendly interface. The intuitive control panel includes digital displays for precise settings adjustments, ensuring accuracy during operation. Beginners and seasoned welders alike can benefit from the clear and straightforward design, reducing training time and enhancing productivity.

Safety features are paramount in the SVM187-A's design. The machine is equipped with thermal overload protection, ensuring that it operates within a safe temperature range to prevent damage and promote longevity. Additionally, it features automatic voltage regulation, which maintains a stable arc even under varying input voltage conditions.

In summary, the Lincoln Electric SVM187-A is a versatile, efficient, and user-friendly welding machine suited for both professional and industrial applications. Its multifunctionality, inverter technology, and robust safety features set it apart from competitors, making it a reliable choice for welders seeking to elevate their craftsmanship while ensuring safety and efficiency. This machine represents the innovation and quality that Lincoln Electric is renowned for in the welding industry.