Hi Trevor, I had a simular problem several months back. My 2820 is in the truck, and the mic got some "gunk" on it over time. After this happened I saw the symptoms you saw. I took the mic apart, gave it a gentle cleaning and then all was good.
YMMV but I would try taking it apart and inspecting/cleaning it. Keep us posted. Bill W1WRA On Jun 18, 2010, at 12:58 PM, Trevor wrote: > I have had the 2820 for about a year and have no problems at all with it, > until now. The MH-133 Mic has an amber that just recently came on the > Activity Indicator side. I have spent a couple hours attempting to diagnose > the issue. The manual has nothing to offer accept that this specific LED is > only suppose to show RED or Green when performing functions and/or PTT. In > addition, I now can't do any function controls or DTMF control via the Mic. > I have done a full cpu reset. I have not been able to swap mics with another > 2820 yet, and that would be the last test with in my abilities to perform > before either determining if either the mic is malfunctioning or the > transceiver, or both. > I have also contacted Icom, whom were very helpful, but unfortunately I found > out this problem is new to them too and could not offer any solution accept > to send the radio in. > Any suggestions? > >
