My headphone jack failed in short order. I am constantly jumping back and forth between headphones & speaker, so the mini-jacks don't stand a chance with me for very long.
When I got a new jack from Elecraft I decided to add a headphone/speaker switch to the back panel; now I leave the headphones plugged in all the time and use the switch to go back and forth. This is a wonderful mod. It fixed the one truly annoying feature of the K2 (to me, at least). When I replaced the jack I bent the center front (ground) conductor flat; one pair of switch contacts are soldered to this contact and the now vacant PCB trace beneath it (with a sliver of fishpaper between switch and board for insulation); the other pair to the back contacts of the jack... well, you can figure it out from the circuit. I routed the 4-conductor cable along the front of the control board, toward the on/off switch; there is a space there where the round cable can get past the board. Anyhow, it is so conveniet to be able to switch the audio from headphone to speaker as often as I want, without having to fiddle with the tiny ill-fitting plug, and always wondering when the jack is going to die again. Next project: fixed level audio output for recording my QSOs. 73, Drew AF2Z On Tue, 11 Sep 2007 22:57:24 -0700, you wrote: >I just lost the speaker audio in my K2/100, but still have audio through the >headphone jack. Switching to the regular cover and speaker doesn't help. >Looking at the schematics, it looks like the headphone jack could be faulty. >The speaker audio runs through the headphone jack and bypasses the speaker >when a headphone is plugged in. It looks like the headphone isn't returning >the audio back to the speaker line when the headphone plug is removed. > >Has anyone else encountered this problem? > >73, > >Steve N6VL > _______________________________________________ Elecraft mailing list Post to: [email protected] 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
