Sort of a 2 part question. We have some industrial equipment that has become unreliable with some indication that the boards are dirty, causing erroneous shorts. In the past I have used isopropyl and a brush but this seems problematic as under the microscope, it is obvious that areas around multi-pin components tend not to get very clean.
I have used compressed air as well, but I am left wondering how to pros actually do this in a repair facility? One thing I am thinking is air airbrush loaded with alcohol and run at higher pressures? Or do you really need a mode of physical contact to break stuff loose?
Also, in another machine, it has been sitting for some time until a reasonable process can be decided to clean some boards that will otherwise take countless hours to remove and clean. This machine cannot be afforded much capital investment for this work, so we are trying to find a slick way to clean them.
For instance, a VFD shut down in this machine and was sent out for repairs. It was returned as "no defects other than cleaned the boards".
Now, this machine was NOT in our facility and we know better than to disregard cooling air filters so if we can get it clean, we can keep it that way.
I have used compressed air as well, but I am left wondering how to pros actually do this in a repair facility? One thing I am thinking is air airbrush loaded with alcohol and run at higher pressures? Or do you really need a mode of physical contact to break stuff loose?
Also, in another machine, it has been sitting for some time until a reasonable process can be decided to clean some boards that will otherwise take countless hours to remove and clean. This machine cannot be afforded much capital investment for this work, so we are trying to find a slick way to clean them.
For instance, a VFD shut down in this machine and was sent out for repairs. It was returned as "no defects other than cleaned the boards".
Now, this machine was NOT in our facility and we know better than to disregard cooling air filters so if we can get it clean, we can keep it that way.