Searching the web i've seen that those 2 soldered pins are the interlock of the laser or on/off switch and since there is no extra switch on the panel it means that when i turn on the central switch, laser is on as well.
so as you see on the attached photos from left to right we have:
L- ...
Hello guys. Recently I bought a k40 laser machine. After fitting all the accessories I pushed the on button and blew off the fuse. I checked the tube and it was full of water. I guess it was cracked so i asked for replacement. The seller told me to disconnect and take out the tube,replace the 6A...