Ray, It sounds like you did everything right. Sorry to hear of your disappointments. Do you have a computer soundcard that you know works with a computer microphone? If so, plug the Proset K2/3 mic into that soundcard - it should work. To check the adapter, plug a computer mic into the Proset adapter - it should produce audio in the K2.
Just to double-check your installation - all pins on the microphone configuration header should have a jumper straight across, and the 5.6k resistor should connect between mic jack pins 1 and 6. With the microphone not connected, check for the presence of 5 volts at pin 1 of the mic jack. Also check for zero ohms to ground at pins 7 and 8. 73, Don W3FPR On 11/5/2011 7:33 AM, Ray Spreadbury wrote: > I then re-fitted the boards and reset SSBA = 1, SSBC =2, POWER = 5 watts& > tested the rig with both PTT& VOX. I found:- > Receiving, everything working OK with either the LS or the ProSet headphones > CW everything working OK > PTT switch appears to work OK, VOX apparently not working& got no audio > output from the microphone with either VOX or the PTT. I.e. there was no > movement of the K2's power display. > > Having re-checked the wiring on the mic. socket& the 5.6k resistor, I > suspect the Heil condenser mic is not working - how can I check it or are > there other things I should look at? > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
