to follow up on the questions about cleaning the contacts, I have two AM-1780s that I can't get to work fully. The relays click when the PTT buttons are activated, but no sidenote is heard (in the first AM-1780), and a sidenote is heard (but no audio) on the second one. I know it's not the cables, headsets, or c-2298s because I have used them all on another 1780 and everything works just fine. Anyway to clean the tiny female connectors on the 1780. I read the TM, which advises sending to maintenance and requisitioning a replacement, but that option doesn't work so well for me.
Thanks for any help.