Lincoln Electric 10084 Operator's Manual page 27

221
X
1
D1
SCR1
Gate leads
P3
plug to Control
P.C. board
POWER RECTIFIER BRIDGE
DIAGRAM 1
PLUG TO SNUBBER BOARD
P5
222
D2
SCR2
G1 G2 G3
–
220
223
204
X X
2
ANODE D3
CATHODE
ANODE
SCR3
GATE
CATHODE
–
27
220
_
3
To (+) side
of capacitor
bank
D4
SHUNT
_
+
204
204
204
To plug
P1
To T1 main
transformer
+