Welcome to the world of modern electronics I'm an electronics repairer and see issues like this all the time. Issues with modern surface mount tech aren't going away while the RoHS crap is still in force, and guys like me are forced to use lead free solder. 2006 was the year of doom for electronics, as things get smaller, the solder joints get smaller and more failure prone, especially with chip technology like BGA. Soft solder and tiny joints are a recipe for disaster.The RoHS guys will tell you that lead-free solder has higher melting temperatures, it's a load of rubbish, it's softer than lead solder even cold on the reel before it's used, the solder in BGA array balls shift in the middle of the temperature range caused by the pressure of the cooler. It caused nVidia failures, Xbox360 RRoD's, and the PS3 issues. The Xbone and PS4 *might* still have these issues down the line...The bent pins issue in HDMI sockets proves just how cheap connectors are these days. SATA and HDMI are prime examples, look at how solid SCART sockets used to be..... 作者: darkryu 时间: 2014-3-13 08:41
