Lincoln Electric SVM169-A Welder User Manual


 
PRECISION TIG 185
TROUBLESHOOTING & REPAIR
F-42 F-42
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SCR BRIDGE ASSEMBLY
REMOVAL AND REPLACEMENT PROCEDURE (Continued)
FIGURE F.9 PLUG J2 ON CONTROL BOARD
PLUG J2 REMOVED
PRECISION TIG 185 CONTROL
J2
J3
J4
FIGURE F.10 DIODE PIGTAIL CONNECTION TO POLARITY SWITCH LEAD.
DIODE
PIGTAIL
CONNECTION