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F-41

TROUBLESHOOTING AND REPAIR

F-41

 

 

 

 

 

 

POWER BOARD TEST (continued)

 

 

TABLE F.4 – POWER BOARD VOLTAGE CHECKS

 

CHECK POINT

TEST

CONNECTOR

LEAD NO. OR

NORMAL

LOCATION

DESCRIPTION

PLUG PIN NO.

IDENTITY

ACCEPTABLE

 

 

 

 

 

 

VOLTAGE

 

 

 

 

 

 

READING

POWER BOARD

CHECK 40 VDC

 

2 (+)

 

477 (+)

38 – 42 VDC

CONNECTOR

INPUT FROM

 

1 (-)

 

475 (-)

 

PLUG J41

DC BUS BOARD

NEG.

 

POS.

 

 

 

 

 

 

 

POWER BOARD

CHECK +15

 

1 (+)

 

225 (+)

+15 VDC

CONNECTOR

VDC SUPPLY FROM

225

5 (-)

 

222 (-)

 

PLUG J42

POWER BOARD

 

 

 

 

 

 

 

 

 

 

 

 

222

 

 

 

POWER BOARD

CHECK +5 VDC

 

3 (+)

 

221 (+)

+5 VDC

CONNECTOR

SUPPLY FROM

 

5 (-)

221

222 (-)

 

PLUG J42

POWER BOARD

 

 

 

 

 

 

 

 

222

 

 

 

POWER BOARD

CHECK -15 VDC

 

2 (+)

 

222 (+)

-15 VDC

CONNECTOR

SUPPLY FROM

223

5 (-)

 

223 (-)

 

PLUG J42

POWER BOARD

 

 

 

 

 

 

 

 

 

 

 

 

222

 

 

 

 

 

 

4 (+)

 

226 (+)

+5 VDC

POWER BOARD

CHECK +5 VDC

 

9 (-)

226

228 (-)

 

CONNECTOR

“RS-232” SUPPLY

 

 

 

 

 

PLUG J43

FROM POWER BOARD

 

 

 

 

 

 

 

228

 

 

 

 

 

 

6 (+)

 

266 (+)

+15 VDC

POWER BOARD

CHECK +15 VDC

 

11 (-)

266

267 (-)

 

CONNECTOR

SPI SUPPLY FROM

 

 

 

 

 

PLUG J43

POWER BOARD

 

 

 

 

 

 

 

 

 

267

 

 

 

 

 

3 (+)

 

 

 

POWER BOARD

CHECK +5 VDC

268A

12 (-)

 

268A (+)

+5 VDC

CONNECTOR

SPI SUPPLY FROM

 

 

 

 

 

 

 

262 (-)

 

PLUG J43

POWER BOARD

 

 

 

 

 

 

 

 

 

262

 

 

 

 

 

7 (+)

 

 

 

POWER BOARD

CHECK +20 VDC STT

346 1 (-)

 

345 (+)

+20 VDC

CONNECTOR

SUPPLY FROM

 

 

 

346 (-)

 

PLUG J43

POWER BOARD

 

 

 

 

 

 

 

345

 

 

 

 

INVERTEC® V450-PRO

Page 81
Image 81
Lincoln Electric SVM199-A service manual Table F.4 Power Board Voltage Checks, Connector Lead NO. or, Identity, Reading

SVM199-A specifications

Lincoln Electric SVM199-A is a highly advanced welding machine that has garnered attention for its robust features and innovative technologies. This piece of equipment is tailored specifically for professionals in the welding industry, providing a range of functionalities that enhance productivity and efficiency.

One of the standout features of the SVM199-A is its Dual Voltage Input capability. This allows for flexibility in energy sources, making it suitable for a variety of job sites and applications. Users can easily switch between 208V and 230V, ensuring that they can operate efficiently regardless of the electrical setup available.

The machine is equipped with a powerful inverter-based design that significantly reduces its overall weight without compromising performance. This technology not only increases portability but also delivers greater energy efficiency, resulting in lower operational costs. The inverter design allows for quicker arc starts and smoother operation, which is especially beneficial for intricate welding tasks.

The SVM199-A boasts advanced digital controls that simplify the operation for both novice and experienced welders. The intuitive interface allows users to easily set and monitor welding parameters, facilitating optimal settings for various materials and thicknesses. This level of control ensures consistent weld quality and minimizes the risk of defects.

Another impressive characteristic of the SVM199-A is its multi-process functionality. It supports MIG, TIG, and Stick welding, making it versatile for various applications, from thin sheet metal work to heavy-duty repairs. This adaptability is ideal for contractors and welding professionals who often switch between different welding processes.

Additionally, the machine features a robust cooling system designed to prevent overheating during extended use. This capability not only prolongs the lifespan of the machine but also ensures reliable performance even in demanding conditions. The SVM199-A is built to withstand the rigors of frequent usage, emphasizing Lincoln Electric’s commitment to durability and quality.

Safety is paramount in welding operations, and the SVM199-A incorporates several safety features, including thermal overload protection and a protective housing design. These elements work together to safeguard both the machine and the operator, promoting a secure working environment.

In summary, Lincoln Electric's SVM199-A stands out in the welding equipment market due to its combination of advanced technology, user-friendly design, and exceptional performance capabilities. Whether for industrial applications or specialized projects, this machine is engineered to meet the rigorous demands of professionals, making it a valuable addition to any welding toolkit.