Just curious if anyone recommends using dielectric grease on PCB edge connectors. I know that a lot of these connectors seem prone to corroding and burning.
Never. Think about how dirty things get inside a cab, then add something sticky like Di-grease... Sure to make mud over the long haul; If the connector needs help conducting, it simply needs to be replaced.
4. If you are seeing pitting, burning or wear, repair the trace.
5. if you dont maintain/clean regularly and you use electrical contact grease, then yes you could may up with "mud". simple fix though, if you use it, check/clean regularly with spray cleaner etc and reapply.