Argon arc welding machine on the ignition, note: switch is not bad, what is the matter?
Take a look at the fuse on the board
The high frequency arcing part is out of order, mainly the high frequency arc starting control loop. So that it has no arc command (press the welding switch), the arc circuit has been connected.
The high frequency part bad is not possible. You see there is no short circuit switch line. If not. You find the switch line socket next to a four relay. On the circuit board. Try to tap off. Whether arc. Trouble is the two. This is actually a little problem. You switch control part caused by short circuit at normal arcs. The current size adjustment. To prove that the machine main parts and high frequency parts are good.
