Lincoln Electric INVERTEC SVM158-A Service Manual page 104

F-54
CONTROL BOARD REMOVAL AND REPLACEMENT (continued)
12. Using a 3/8" nut driver remove the two mounting
nuts from the top two corners of the control
board. See Figure F.19.
13. Cut any necessary cable ties.
FIGURE F.19 CONTROL BOARD MOUNTING SCREW LOCATION
Mounting
Nuts (3/8")
15. Replace the two 3/8" mounting nuts at the top
two corners of the control board.
16. Replace any previously removed cable ties.
17. Replace plugs #J3, #J4, #J5, #J6, #J7, #J8, #J9,
#J10B, and #J10A previously removed.
18. Replace the two screws and their washers from
above and below the input power switch.
TROUBLESHOOTING & REPAIR
V350-PRO
14. Replace the control board.
19. Replace the four screws from around the two
welder output terminals on the front of the
machine.
20. Replace the two case front mounting screws at
the bottom of the front of the machine.
21. Replace the case wraparound cover.
22. Perform the Voltage and Current Calibration
Procedure.
F-54