MDdetector

We have no need to know how old the unit is or how rough it was treated because in the video we can see the history we need. I.e. how it was designed. Which is poorly when it comes to this wire connection. The ML design here connects some discrete wires to a PCB by use of a simple through hole and a blob of solder. That's pretty much a design fail for reliability and ruggedness in gear that will be constantly be moved / handled. There are lots of types of discrete wire to board connectors available and ML used none of them here. Such connectors exist because otherwise stuff likes this happens. Given the label for the connection, "TXA"- transmit A, my (limited) understanding of the Russian narration, and the fact the box is open and under repair, it seems the failed / intermittent connection is pretty important.

Yipes. It's kind of shocking to see that with all the tech Minelab has available, their $8,000 detector has failed here (or at least is hobbled) due to a bad solder joint.