TroubleshooTing and sysTem TesTs
480 V CSA power supply overview
Control board (PCB1)
Work lead connection (J21)
Output diode and pilot arc
IGBT module (D40)
5-10
Flyback circuit
Power board (PCB2)
Inverter IGBT (Q2)
Power switch (S1)
TP16
R
TP17
TP18
W
B
~280 VDC
~280 VDC
+ -
+ -
Test points
powermax
PE (ground)
Power board
Input diode bridge
(D48)
45 Service Manual
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