Tony, Same thing happened to me when I plugged my Kenwood mono speaker into the stereo speaker jack on the back of the K3. I did this without thinking from the front of the radio when I was rearranging equipment in the shack. The speaker worked for a couple of days until the audio output transistor failed. I could then only hear audio from the headphones. I had to send my K3 back to Elecraft in order to replace the audio output transistor. It was under warranty so they repaired it for free. While the rig was in the shop, I had them add the sub RX, digital voice recorder, and the IF Out interface. So they came out okay on the deal.
But I learned my lesson -- do not plug a mono speaker into the stereo receptacle. It is clearly labeled as Stereo on the back, but you have to be looking at it from that direction! Even the manual shows it as stereo. Dave, N4QS ----- Original Message ----- From: "N2TK, Tony" <tony....@verizon.net> To: "'Elecraft Reflector'" <elecraft@mailman.qth.net> Sent: Saturday, January 02, 2010 11:25 AM Subject: [Elecraft] K3 - Speaker/headphone problem > Maybe someone has had this problem before and can save me time > troubleshooting? > > > > Everything was fine yesterday. This morning (rig is always ON) headphones > work fine. But nothing out of either internal or external speaker when I > unplugged the headphones. I now have to turn Config: SPKR + PH to YES to > listen out of either an external or internal speaker. But now I can't turn > off the speakers when plugging in the headphones. > > > > Any ideas what could have happened? > > > > Tnx for any feedback. > > N2TK, Tony > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html