[Elecraft] K3: Line-In dead (or heavily attenuated)

[Joe Subich, W4TV]

Check the RF chokes L4 and L5 on the KIO3 Audio IO board.  

73, 

   ... Joe, W4TV 
 



> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net 
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of James Sarte
> Sent: Wednesday, August 05, 2009 7:06 PM
> To: Elecraft
> Subject: [Elecraft] K3: Line-In dead (or heavily attenuated)
> 
> 
> I've sent an email over to Aptos hoping that they may know 
> what's going on with my K3.  A few days ago, I noticed that 
> sometimes the amount of line-in gain required for a digital 
> signal from DM780 varied quite a bit.  Some days, all it took 
> was a level of 14 and I'd have about 6 bars of ALC.  On 
> others, gain had to be set to nearly 25.  Well, today it 
> seems that my line-in died all together or at the very least 
> has become heavily attenuated.  I now have to crank the line 
> gain all the way up to 60 to get about 3 bars ALC!!
> 
> I have checked, and no audio settings have been changed on my 
> PC.  I even plugged in a set of speakers to the line out jack 
> on the PC and everything is fine.  What is weird is that 
> sometimes, fiddling around with the mic/line input settings 
> in the Main menu fixes things for a while, but then it's back 
> to almost zero input after a while.
> 
> Any suggestions?  Lyle seems to think it could be a bad 
> solder.  I'm going to let the rig cool off and see if the 
> problem occurs while cold.  I've also reloaded the current 
> firmware twice, plus went back to 3.19 just to make sure it 
> wasn't a FW issue.
> 
> -- 
> 73 de James K2QI 
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