Re: STE V1.5 32MHz BOOSTER - STATUS
Posted: Sun Jul 15, 2018 10:30 pm
Forgottenmyname wrote: ↑Sun Jul 15, 2018 10:26 pm Not sure why it would happen but can only assume oxydisation on the pin over the years, not that we can see it on the photo.
Does not appear to be any tarnishing or oxidisation from what I can see.
It was soldered in a oven originally.. Of course bad joints can happen if the PCB and the solder melts and the CPU pin isn't up to temperature and it does not stick.. But the whole thing is heated up equally so that should not happen.. Even so, I heat gunned this board taking the CPU off and on, and the pins resisted the re-soldering each time.. And I even plastered lots of flux over everything each time. So it's not soldering this amount of times is nearly impossible.. The only thing it could be as if the pins were bent such a way solder did not touch the pins.. But all the pins seem level to me..Forgottenmyname wrote: ↑Sun Jul 15, 2018 10:26 pm Could it be that the cpu and pcb flexed under the sudden application of heat? Reading the instructions on the paste I use talks about raising the temperature in a set procedure....