Also tried the front panel earphone jack, with the same results as the rear panel jack.
73, Tom W4KX Sent from my iPad > On Feb 27, 2018, at 10:05 AM, Thomas Doligalski <[email protected]> wrote: > > I use stereo earphones plugged in the rear. I get equal volume in both > earphones with the same AF gain settings until I turn on the sub receiver, > when I get the diminished volume in the right headphone and have to turn up > the sub receiver gain. > > Thanks, 73 Tom W4KX > > Sent from my iPad > >> On Feb 27, 2018, at 10:00 AM, brian <[email protected]> wrote: >> >> Thomas, >> >> You don't say if you're using earphones or speakers. >> ------------------------------------------------------------- >> If earphones: >> >> Are your earphones plugged into the front panel or back panel? >> I had the earphone jack in the back make poor contact with the earphones and >> low audio in one of the two channels. To troubleshoot, I plugged earphones >> in the front jack and things were AOK. >> >> Try plugging earphones into the "other" jack. >> >> Don't overlook the earphones being the potential problem. >> >> Speakers OK? >> ---------------------------------------------- >> If speakers: >> Are earphones OK? >> >> 73 de Brian/K3KO >> >>> On 2/27/2018 14:40 PM, Thomas Doligalski wrote: >>> Larry W0LRF wrote earlier this month: >>> >>>> There have been a few posts on this subject, but none had answers. >>>> >>>> >>>> >>>> >>>> Both my main and sub receiver are on the same antenna. >>>> >>>> The audio volume from the sub is much lower. >>>> >>>> The AF for the main is…… let’s say at 9 o’clock….. to get equal volume >>>> level from the sum… Sub AF has to be at 3-4 o’clock. >>>> >>>> RF on both are the same. >>>> >>>> Any suggestions? Is this normal? >>>> >>> >>> I have the same problem with K3 #969. >>> >>> All was fine when I first installed the KRX3, right after it was released. >>> However, when I installed the new K3SYNA boards the audio problem for the >>> sub receiver manifested itself. >>> >>> I have verified that the settings and filters for the sub receiver are the >>> same as the main receiver. Note that the RF signal between the two >>> receivers is identical, as shown on the K3 S-meter and the P3 display. >>> >>> Recently I noted the latest KRX3 installation manual (downloaded from >>> electraft.com) has a section entitled "Checking and Modifying Resistor R91 >>> and DAC Input Circuits”. The manual I followed when installing my KRX3 only >>> had a similar section entitled “Checking and Modifying Resister R91”. >>> >>> The latest KRX3 installation manual states that the missing step involves >>> cutting two traces on the main board board to the left of R91, with the >>> justification that “This modification ensures the digital-to-analog >>> converters (DACs) always receive the proper signal levels. It has been >>> incorporated into all later K3s.” >>> >>> Could this be the cause of my Low sub receiver volume problems? Should I >>> cut these traces now? >>> >>> Thanks and 73! >>> >>> Tom W4KX >>> ______________________________________________________________ >>> 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 >>> Message delivered to [email protected] >>> >>> --- >>> This email has been checked for viruses by AVG. >>> http://www.avg.com >>> ______________________________________________________________ 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 Message delivered to [email protected]
