Mike, Make sure that BOTH connectors between the front panel and DSP boards are mated. If you leave the one with the single row of pins unmated you will get the problem of the front mic socket not working.
Trust me - I have done this TWICE !!! 73 Stewart G3RXQ On Mon, 12 Jan 2009 15:18:38 -0800, Mike Scott wrote: > I installed the second receiver in my K3 and at the same time made the > prescribed audio and line out modifications. > > After checking out the receiver my microphone is now dead using the front > panel. Rear connection works okay. I have been using the front panel > microphone connector without a hitch up until the time I went off line to > make the above modifications. > > So has this happened to anyone else and is there something obvious before I > start taking covers off? > > One thing to note, I did have a problem with the SubRx install. The Sub-In > and Sub-Out board connections to the SubRx are very difficult to tell when > they are mated correctly as most of the pins are not visible. I apparently > ended up with an improper mating and smoked the sub-out board. A quick call > to Elecraft identified the problem and a new sub-out board put me on the air > after a very careful inspection of the connectors this time. I am wondering > if the sub-out is the only thing that I smoked now. The microphone-audio > path seems quite remote from all this activity but I don't know what sneak > paths I might have created with a misconnected sub-out connection. > > I checked microphone gain (it is set at 30 with front panel-high, no bias), > just as it was before this problem arose. Those mic settings work well for > the rear connector using the same microphone. I use one of those Kenwood > adapters to audio plugs that came with a microphone and the microphone has a > dynamic element. > > Mike Scott - AE6WA > Tarzana, CA (DM04 / near LA) > K3-100 #508/ KX1 #1311 > > > _______________________________________________ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com