Lincoln Electric SPIRIT II 275 Technical Manual page 147

Spirit II User's Manual
Power Supply, Microprocessor DSP (BK300101) – Quadrant 2
1 3
4
2
PCB Quadrant Map
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U28 - Plasma
U27 - Preflow
U19 – Solenoid
(not used)
U21 – Mtr / Sol
U22 - PAR
U24 - Surge
U26 - Fan
U23 - Con
7-19
J14
J15
Section 7: Parts List
J1