G-23

 

ELECTRICAL DIAGRAMS

G-23

TOC

TOC

PC BOARD ASSEMBLY - PROTECTION - (L7915-2)

Item

Identification

 

 

 

 

 

 

Section

Master

 

 

B5, B14, B51, B52, B53

CONNECTOR, tab 1/4”

 

 

C1, C3, C4, C5, C6

CAPACITOR, ceramic

 

 

C2

CAPACITOR, tantlm etc.

 

 

 

 

to

to

 

 

 

27f 35VDC

 

 

 

 

Return

Return

 

 

D1, D3, D4, D5, D6, D7

DIODE, 1A 400V

 

 

D8

DIODE, 1A 1000V

 

 

DZ1

DIODE, IN4740 Zener 10V 1W

 

 

 

 

J8

RECEPTACLE, Molex mini 4 pin

 

 

 

 

J15

RECEPTACLE, Molex mini 6 pin

 

 

 

 

OCI1, OCI2, OCI3, OCI4

OPTO, Isolator CNY17-3

 

 

 

 

P8 (plugs into J8)

PLUG HOUSING, Molex mini 4 pin

 

 

 

 

P15 (plugs into J15)

PLUG HOUSING, Molex mini 6 pin

 

 

 

 

R1, R2

RESISTOR, MF .25W 1% 681K

 

 

 

 

 

ohm

TOC

TOC

 

 

R3, R13, R16

RESISTOR, MF .25W 1% 1.82K

 

 

 

ohm.

 

 

R4, R5, R11, R12

RESISTOR, MF .25W 1% 150K

Section

Master

 

 

 

 

 

ohm

 

 

R6, R8, R9, R10, R27

RESISTOR, MF .25W 1% 56.2K

 

 

 

ohm

to

to

 

 

 

 

 

R7, R20

POTENTIOMETER, Cermet trmr

Return

Return

 

 

 

 

 

.25W 1% 5K ohm

 

 

R14

RESISTOR, MF .25W 1% 100K

 

 

 

ohm

 

 

 

 

 

 

 

 

 

R15

RESISTOR, MF .25W 1% 475

 

 

 

 

 

ohm

 

 

 

 

R18, R26, R28, R32

RESISTOR, MF .25W 1% 10K

 

 

 

 

 

ohm

 

 

 

 

R19

RESISTOR, MF .25W 1% 3.32K

 

 

 

 

 

ohm

 

 

 

 

R21, R23, R24, R25,

RESISTOR, MF.25W 1% 15K

TOC

TOC

 

 

R29, R30, R31, R33

ohm

 

 

R22

RESISTOR, MF .25W 1% 332K

Section

Master

 

 

 

ohm

 

 

R34, R36

RESISTOR, MF .25W 1% 276K

 

 

 

ohm

 

 

 

 

to

to

 

 

R35, R37

RESISTOR, MF .25W 1% 332

 

 

 

 

Return

Return

 

 

 

ohm

 

 

TERMINALS (P8, P15)

TERMINALS, Molex mini

 

 

X1

QUAD OP-AMP

 

 

 

 

X2

VOLTAGE REGULATOR, linear

 

 

 

 

 

7805 5VDC

 

 

 

 

NOTE: Individual parts listed are not available from Lincoln Electric.

to Section TOC

to Master TOC

 

 

￿￿

 

Return

Return

 

 

 

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

 

 

 

 

 

Page 115
Image 115
Lincoln Electric SVM105-B service manual PC Board Assembly Protection L7915-2, OCI1, OCI2, OCI3, OCI4

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.