Lincoln Electric SVM105-B service manual PC Board Assembly Switch L10958-1, Reqd Identification

Page 110

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G-18

ELECTRICAL DIAGRAMS

G-18

PC BOARD ASSEMBLY - SWITCH - (L10958-1)

 

 

6.40

B12

B11

B9

B10

B3

C3

B7

B5

B6

B2

B1

 

 

C4

 

 

ITEM

REQ'D

PART NO.

IDENTIFICATION

 

 

 

 

C1,C5,C6,C7

4

S16668-5

.022/50

 

 

 

 

C2,C8

2

S16668-4

2700pF/50

 

 

 

 

C3,C4

2

S13490-112

.047/1200

 

 

 

 

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

10

T12705-34

1N4936

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to Section TOC

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to Master TOC

 

D2

 

R3

D4

 

C1

 

 

Q7

R14

D5

 

 

 

 

 

R16

 

 

 

 

 

 

Q4

R12

DZ5

R7

 

 

R13

 

Q3

 

Q2

 

 

DZ3

 

R15

R43

R5

R4

R11

R44

 

 

 

 

 

 

 

A2

D3

DZ6

R35

R33 R6

R9

DZ4

 

C7

R42

R18

R17

R8

B8

 

 

 

 

 

 

 

 

 

 

 

 

 

R38

 

R39

 

R40

 

R41

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C5

 

 

D1

R1

 

D6

 

B4

 

 

D8

R21

R23

 

Q11

 

 

 

 

 

 

 

 

 

 

 

 

R30

DZ8

R20

 

Q12

 

 

 

 

Q1

Q10

R31

 

 

 

 

 

 

 

 

R46

R28

R2

R24

R22

R45

 

DZ12

A1

 

 

 

 

 

 

 

 

R27

R25 R34

R36

DZ9

D7

R19

R26

R29

R37

C6

 

DZ7

D9,D10

 

 

 

DZ1,DZ2,DZ3,DZ12

4

T12702-27

1N4740

 

 

 

 

DZ4,DZ7

2

T12702-29

1N4744A

 

 

 

 

DZ5,DZ8

2

T12702-53

1N4728A

 

 

 

 

DZ6,DZ9

2

T12702-40

1N4735

 

 

 

 

Q1,Q2,Q3,Q10

4

T12704-73

IC PKG MOSFET

Q4,Q12

2

T12704-68

2N4401

 

 

 

 

Q5,Q6,Q7,Q8,Q9,Q11

6

T12704-69

2N4403

 

 

 

 

R1,R3,R5,R24

4

S19400-1000

100 1/4W

 

 

 

 

R2,R4

2

S19400-2210

221 1/4W

 

 

 

 

R6,R8,R9,R17,R19,R25,R26

10

S19400-10R0

10 1/4W

R27,R33,R34

 

 

 

 

 

 

 

R7,R30

2

S19400-1501

1.5K 1/4W

R10,R32

2

S19400-1502

15K 1/4W

R11,R15,R22,R28,R43,R44

8

S19400-2R00

2.00 1/4W

R45,R46

 

 

 

 

 

 

 

R12,R14,R20,R21

4

S19400-1001

1K 1/4W

 

 

 

 

R13,R31

2

S19400-20R0

20 1/4W

R16,R23

2

S19400-2212

22.1K 1/4W

 

 

 

 

R18,R29,R37,R42

4

S19400-4750

475 1/4W

R35,R36

2

S19400-47R5

47.5 1/4W

R38,R39,R40,R41

4

S19400-3922

39.2K 1/4W

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Q5

 

 

Q8

 

 

 

 

DZ1

D9

C2

R10

Q6

L10958-1

SWITCH

Q9

R32

C8

D10

DZ2

0

 

 

 

 

 

 

 

 

 

 

 

0

8.50

A

11/01/2002

L10958-1

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.

V300 PRO

Image 110 Lincoln Electric SVM105-B service manual PC Board Assembly Switch L10958-1, Reqd Identification
Contents Invertec V300-PRO Safety Fumes and Gases can be dangerous Electric Shock can killARC Rays can burn Cylinder may explode if damaged SafetyWelding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcMaster Table of Contents for ALL Sections Section A-1 Table of ContentsInstallation Section Installation Three Phase Single PhaseLocation Product Description Electrical InstallationInput Voltage Setup Single Phase Input Power Input ConnectionConnection of Wire Feeders to the Invertec Three Phase InputParallel Operation Remote Control of InvertecK900-1 DC TIG Starter Connection Output Cables Quick Disconnect Plugs K852-7Operation Section Section B-1Duty Cycle OperationOperating Instructions Control Function / OperationMode Switch Full Range Is Is Very Soft, 10 Is Very CrispMeter Polarity Switch Auxiliary PowerAccessories Section Section C-1Accessories Options / AccessoriesMaintenance Section Section D-1Maintenance Input Filter Capacitor Discharge ProcedurePreventive Maintenance Overload ProtectionFigure D.2 Location of Maintenance Components Theory of Operation Section Section E-1Theory of Operation Input Line Voltage & Auxiliary TransformerPrecharge & Protection Circuits Return to Section To Section TOCSwitch Boards CurrentOutput and Control Circuits FET Modules CurrentPassive Maximum Output Pulse Width ModulationMinimum Output Thermal Protection Protective CircuitsOverload Protection Troubleshooting & Repair Section Section F-1Troubleshooting & Repair HOW to USE Troubleshooting GuidePC Board Troubleshooting Procedures Matched Parts Additional Information Oscilloscope WarningInput Filter Capacitor CONDITION- ING Feeding Problems DepartmentFeeding Problems See Input Rectifier test See Output Diodes test See Switch Board test V300-PRO Input Filter Capacitor Discharge Procedure Test DescriptionInput Filter Capacitor Discharge Procedure Figure F.I Location of Input Filter Capacitor TerminalsOutput Pilot Circuit Test Output Pilot Circuit TESTcont G2527 J2 J4 J3V300-PRO Protection Board Output Test Troubleshooting & Repair Test Procedure Protection Figure F.6 Inserting ProbesCapacitor Balance Test Static Capacitor Test 912 V300-PRO Switch Board Test Switch Board Test Switch Board Test Table F.3 Snubber Resistor Test 403 404 Snubber Resistor Test402/ R W Check Test Result Conclusion Next Test Step Repair ActionOutput Diode Test Test Procedure Output Diode TestInput Rectifier Test Probe Acceptable Meter Reading Table F.5Points Steps Overcurrent Protection Current Trigger Test 275D Overcurrent Protection Current Trigger Test302 Control Overvoltage Protection DC Trigger Circuit Test Overvoltage Protection DC Trigger Circuit Test Figure F.16 PC Boards Removed311 309 310 3J8 2J14 1J6 1J8 #311 1J14 6J6 #302#313 #275D #301 #305Thermal Protection AC Trigger Circuit Figure F.20 PC Boards Moved for Access Thermal Protection AC Trigger CircuitFigure F.21 Thermal Protection AC Trigger Circuit V300-PRO Power Board Test Test B Power Board TestTest a Figure F.23 Power Board Test Points Simplified Trigger Circuit Capacitor Removal and Replacement Procedure Capacitor Removal and Replacement ProcedureFigure F.27 -- Removing Capacitor Nuts Figure F.27 Switch Board Removal and Replacement Procedure Switch Board Replacement ProcedureTest After Switch Board or Capacitor Replacement Test After Switch Board or Capacitor Replacement Perform Retest After RepairOutput Diode Replacement Procedure Output Diode Replacement Procedure Procedure Paralleled IndividualDiodes61TROUBLESHOOTING & REPAIRF-61 Procedure Diode ModulesOutput Retest After RepairOCV at rated Input V300-PRO Min. Acceptable Max. All Modes V300-I V300-PROElectrical Diagrams Section Section G-1Wiring Diagram Entire Machine Code 9825 & 9965 L8657 V300 PROWiring Diagram Entire Machine Code 9934 L8841 + ARCWiring Diagram Entire Machine Code 10034 L9299 ARCWiring Diagram Entire Machine Code 10035 L9301 I T C H 13,15 B O a R D F TWiring Diagram Entire Machine Code 10130 L9567 Wiring Diagram Entire Machine Code 10131 L9569 Wiring Diagram Entire Machine Code 10256 L10189 Wiring Diagram Entire Machine Code 10257 L10191 Schematic Entire Machine Controlboard #.$ #$ !#$ #!%&$Schematic Driver PC Board S20216 PC Board Assembly Driver L8660 IdentificationSchematic Driver PC Board S20799 PC Board Assembly Driver DescriptionSchematic Switch PC Board L8440 PC Board Assembly Switch L8441 CAPACITOR, Cemo 2700P 50V 5%Schematic Switch PC Board L10956 PC Board Assembly Switch L10958-1 Reqd IdentificationSchematic Control PC Board G2525 Electrical Diagrams CAPACITOR, Cemo 150P Schematic Protection PC Board M16097 PC Board Assembly Protection L7915-2 OCI1, OCI2, OCI3, OCI4Schematic Power PC Board M16018 PC Board Assembly Power L8033-7 VOLT. REG. & Heat Sink Asbly

SVM105-B specifications

The Lincoln Electric SVM105-B is a state-of-the-art welding machine that represents a leap forward in welding technology, designed for both professionals and enthusiasts in the welding industry. This versatile machine combines robust performance with user-friendly features, making it suitable for a wide range of welding applications.

One of the key features of the SVM105-B is its advanced inverter technology. This allows for a lightweight design without compromising on power output. The inverter technology ensures a stable arc and precise control, enabling consistent weld quality across various materials, including mild steel, stainless steel, and aluminum. This feature is particularly beneficial for users who demand exceptional performance in both thin and thick materials.

The SVM105-B also boasts an impressive output range, typically between 10A to 105A, allowing for adaptability to different welding tasks. Its ability to seamlessly switch between DC and AC modes makes it an ideal choice for professionals working in diverse environments, facilitating operations such as TIG and stick welding. This versatility is further enhanced by its compatibility with various electrode types, ensuring a more efficient and effective welding process.

User safety and comfort have not been overlooked in the design of the SVM105-B. Equipped with an efficient cooling system, this machine effectively manages heat during prolonged use, ensuring durability and longevity. Additionally, its intuitive digital display provides real-time feedback on settings, making it easier for users to monitor parameters and make necessary adjustments on the fly.

The SVM105-B is built with portability in mind. Its compact and lightweight design makes it easy to transport, enabling welders to bring their equipment to job sites without hassle. Furthermore, the machine features sturdy handles that contribute to its ease of maneuverability, supporting the demands of both inside workshops and outdoor projects.

Moreover, Lincoln Electric places a strong emphasis on quality and reliability, and the SVM105-B is a testament to this commitment. The machine is constructed from durable materials designed to withstand the rigors of daily use, ensuring it remains a staple in any welder's toolkit for years to come.

In conclusion, the Lincoln Electric SVM105-B stands out with its combination of advanced inverter technology, versatile output, user-friendly interface, and robust construction. Whether for professional or hobbyist use, this welding machine meets a wide array of welding needs while providing excellent performance and durability.