[Elecraft] K2 Ke-Klonk !!

[Matt VK2RQ]

Maybe there is an issue with the muting circuitry, around Q6 and Q7?

73, Matt VK2RQ

> On 2015-maj-13, at 05:09, f5vhp at netcourrier.com wrote:
> 
> I recently acquired K2 #0957 (f/w 2.02 , 1.02)
> ATU, SSB module, NB module, 160m and Audio Filter modules are fitted.
> It makes a loud "Ke-Klonk" at switch on and whenever any of the following buttons are used:
> Band =/-
> Ant 1/2, TUNE
> NB, LEVEL
> MODE
> Pre / Att
> XFil
> and, worst of all each time cw transmission is dropped, making semi or full break-in impossible.
> The Audio gain control makes no difference.
> 
> It makes the same Ke-Klonk when scrolling the menu between "OPT" and "ANT", "RIT" and "ACC" and at every step through the "ANT" sub menu.
> Removing the ATU made no difference.
> So I'm wondering where to look next ?
> 
> 
> 
> William
> F5vhp
> 
> 
> 
> 
> 
> 
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to matt.vk2rq at gmail.com