ESAB DTG 405 Service Manual page 14

T2 DC sense transformer 2000:1
T3 High-frequency inverter main transformer
T4 Mains supply transformer, supply:
• A2
• A6
• 230V AC (fans, pump)
• 42V AC (solenoid valve, main contactor, HF ignition device)
X... Connectors
X1 Mains cable
X2, X3, X7 Socket for workpiece cable, TIG torch, MMA stick holder
X4 Connector for remote control
X5 TIG torch control connector for torch button
X9 Interconnection to power block
X10 Interconnection 230V AC
Y01 solenoid valve, 42V AC
Introduction to the block diagram
Some of the circuit board components are divided into function blocks which are described in the
descriptions of operation. These function blocks are shown in the following block diagram.
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