PC Board Troubleshooting Procedures

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TROUBLESHOOTING & REPAIR

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WARNING

ELECTRIC SHOCK can kill.

Have an electrician install and service this equipment. Turn the machine OFF before working on equipment. Do not touch electrically hot parts.

Sometimes machine failures appear to be due to PC board failures. These problems can sometimes be traced to poor electrical connections. To avoid prob- lems when troubleshooting and replacing PC boards, please use the following procedure:

•Remove the PC Board from the static-shielding bag and place it directly into the equipment. Don’t set the PC Board on or near paper, plastic or cloth which could have a static charge. If the PC Board can’t be installed immediately, put it back in the static- shielding bag.

•If the PC Board uses protective shorting jumpers, don’t remove them until installation is complete.

•If you return a PC Board to The Lincoln Electric Company for credit, it must be in the static-shielding bag. This will prevent further damage and allow proper failure analysis.

4.Test the machine to determine if the failure symp- tom has been corrected by the replacement PC board.

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1.Determine to the best of your technical ability that the PC board is the most likely component caus- ing the failure symptom.

2.Check for loose connections at the PC board to assure that the PC board is properly connected.

3.If the problem persists, replace the suspect PC board using standard practices to avoid static electrical damage and electrical shock. Read the warning inside the static resistant bag and perform the following procedures:

NOTE: Allow the machine to heat up so that all elec- trical components can reach their operating temperature.

5. Remove the replacement PC board and substitute

it with the original PC board to recreate the original

problem.

a. If the original problem does not reappear

by substituting the original board, then the

PC board was not the problem. Continue

to look for bad connections in the control

wiring harness, junction blocks, and termi-

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ATTENTION Static-Sensitive Devices Handle only at Static-Safe Workstations

Reusable

Container

Do Not Destroy

PC Board can be damaged by static electricity.

•Remove your body’s static charge before opening the static-shield- ing bag. Wear an anti-static wrist strap. For safety, use a 1 Meg ohm resistive cord connected to a grounded part of the equipment frame.

•If you don’t have a wrist strap, touch an unpainted, grounded, part of the equipment frame. Keep touching the frame to pre- vent static build-up. Be sure not to touch any electrically live parts at the same time.

nal strips.

b. If the original problem is recreated by the

substitution of the original board, then the

PC board was the problem. Reinstall the

replacement PC board and test the

machine.

6. Always indicate that this procedure was followed

when warranty reports are to be submitted.

NOTE: Following this procedure and writing on the warranty report, “INSTALLED AND SWITCHED PC BOARDS TO VERIFY PROBLEM,” will help avoid denial of legitimate PC board warranty claims.

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•Tools which come in contact with the PC Board must be either conductive, anti-static or static-dissipative.

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SVM 110-A specifications

The Lincoln Electric SVM 110-A is a state-of-the-art welding machine designed to cater to the needs of professionals and hobbyists alike. Known for its adaptability and superior performance, the SVM 110-A provides a seamless welding experience that is gaining popularity across various industries.

One of the main features of the Lincoln Electric SVM 110-A is its impressive power output. Capable of delivering up to 110 amps of welding current, this machine is ideal for a wide range of applications, including light to medium fabrication work, maintenance, and repair tasks. The versatile voltage input options allow users to operate the machine on standard household current as well as generator power, enhancing its portability and usability in diverse settings.

The SVM 110-A employs advanced inverter technology, which allows for a more compact design without sacrificing performance. This technology not only improves efficiency but also provides greater control over the welding arc, ensuring cleaner beads and reduced spatter. Additionally, the inverter design contributes to a lighter weight, making the SVM 110-A easy to transport and maneuver.

Another significant characteristic of the SVM 110-A is its user-friendly interface. With intuitive controls and clear display indicators, the machine is designed for ease of use, enabling welders to quickly adjust settings to suit their specific needs. This feature is especially beneficial for beginners who are looking to enhance their skills without being overwhelmed by complex operations.

The machine supports a variety of welding processes, including MIG and stick welding, offering unmatched versatility in terms of the types of materials it can handle. From steel to aluminum, the SVM 110-A demonstrates excellent compatibility with various consumables, allowing users to select the best options for their projects.

Furthermore, the design of the SVM 110-A incorporates advanced safety features, including thermal overload protection and a sturdy construction that can withstand demanding environments. This commitment to safety ensures that users can perform their work confidently and efficiently.

In conclusion, the Lincoln Electric SVM 110-A is a remarkable welding machine that combines power, portability, and ease of use. Its advanced inverter technology, user-friendly controls, and versatility make it an ideal choice for both amateurs and seasoned welders. Whether for home projects or professional trades, the SVM 110-A stands out as a reliable and efficient solution in today’s welding landscape.

Lincoln Electric SVM 110-A service manual PC Board Troubleshooting Procedures

Models: SVM 110-A

TROUBLESHOOTING & REPAIR