> > BTW, there is one MORE source of connector problems: surface-mounted > connectors. Instead of being thru-hole > mounted, each post is tacked to a surface pad. These ARE _definitely_ > criminal. I agree, I've repaired a number of these for people where the solder joints that held the connector to the pcb fatigued and failed over time, a failure mode that you just don't ever see with thru-hole. In fact, I designed this failure mode into a system, where impact that couldn't be handled by the case flexure was designed to shear the connector from a plug-in board rather than cause damage to the motherboard that would have been a much more difficult repair. I've seen the failures in connectors that didn't have much force at all applied, so I'm saying that all external interface connectors must be thruhole. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist