On Mar 4, 2013, at 10:18 AM, Doug McNutt wrote: > > After I retired from launching navy rockets I worked on radio installations > in light aircraft. One day a boat owner with an airplane too told me that ALL > electrical problems in automobiles and boats were caused by bad ground > connections. I was quite willing to add airplanes and rockets to that. > > But a corollary is that ALL failures in electronic equipment are caused by > bad solder joints. Responsible technicians have a somewhat annoying tendency > to give a piece of equipment a really hard bump on the side or they > deliberately lift it a few inches and drop it. Visitors tend to think it's > like punishing a child but it often makes something work or at least changes > some noise it's making. > > It's a sure sign of a bad connection and it's more likely to be a solder > joint than a bad connector pin.
A good thump on the side is how I "fixed" my Plus when it had a bad solder joint. It is a valid test tool. That it fixed things told me the problem was likely a bad solder joint. But it's a mistake to have a rule that ALL failures are due to any one thing. You'll spend a lot of time looking for a ground fault that isn't there. -- -- ----- You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To leave this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
