Lincoln Electric SVM133-B Welder User Manual


 
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TROUBLESHOOTING & REPAIR
F-43 F-43
COMMANDER 400
STATIC SCR/DIODE RECTIFIER BRIDGE TEST (continued)
FIGURE F.15 RESISTOR R1 LOCATION
RESISTOR R1
LEAD #204B
6. Using the 3/8” nut driver, locate and remove
the snubber board cover. See Figure F.14.
7. Locate and remove molex plug J30 from the
snubber board. See Figure F.14.
8. Locate and remove lead #204B from resistor
R1 (50 ohms, 100 Watts). See Figure F.15.
FIGURE F.14 SNUBBER BOARD PLUG J30 LOCATION
PLUG J30
COMMANDER SNUBBER
C3
C1
C2 C7
WARNING
SNUBBER
BOARD
LOCATION
(LEFT SIDE,
BELOW
FUEL TANK)