Lincoln Electric V160-S Service Manual page 85

TROUBLESHOOTING & REPAIR
F-25 F-25
MAIN IGBT INVERTER BOARD V160-S/T
"WELDING LOGIC AND INVERTER" SECTION TEST (continued)
FIGURE F.14 MAIN IGBT INVERTER BOARD LOCATION
GATE DRIVE
OUTPUT
RECTIFIER
IGBT
IGB T
SHUNT
1 Ohm
OUTPUT
TRANSFORMER
T3 T3
INSIDE INVERTER PCB
V160-S & -T