type 1:315 without tube(ZX7-315II-03-AO)

type 2: 315 with 20 new K3878

 

 

Raylingjia ZX7/WS/TIG-250/300/315A DC welding machine, argon arc inverter board circuit board

 

The load has been measured!

 

Make sure that the MOS tube is well insulated before boarding, and the insulating cloth should be replaced when necessary. First through the auxiliary power supply, drive normal and then through strong power (pay attention to the positive and negative direction). Because of the risk of the inverter board maintenance, non professional personnel please do not take, this board does not replace the warranty, and all the parameters before the factory inspection is good.