It's subjective, of course, but something isn't right. I can hear the tone
in the phones (and speaker) at St L 001. I have mine set at 024. It's
downright uncomfortable at much over 100.
Do you have any other phones you can try before assuming the rig has a
problem?
Ron AC7AC
-Original
Thanks for the reply Ron,
I also tried a set of iPod earbuds with the same results.
Terry VA6MAC
-Original Message-
From: Ron D'Eau Claire [mailto:[EMAIL PROTECTED]
Sent: Wednesday, March 14, 2007 10:09 AM
To: McMillan, Terry; elecraft@mailman.qth.net
Subject: RE: [Elecraft] K2: st L
Since you can change the frequency and can hear something, the places to
look are the AF Amp, U9 and sidetone source Q5/U10B.
I'd start at the AF amplifier and make sure +12 is present at pin 7.
If so, next I'd take a close look at the soldering. Did you miss a pin? Is
there a short? A common
on one of the jacks.
Now I can blow my ears off before I get to st L 100.
Thanks again.
Terry VA6Mac
-Original Message-
From: Ron D'Eau Claire [mailto:[EMAIL PROTECTED]
Sent: Wednesday, March 14, 2007 2:43 PM
To: McMillan, Terry; elecraft@mailman.qth.net
Subject: RE: [Elecraft] K2: st L
: [Elecraft] K2: st L How loud?
Thanks Ron, problem solved.
I checked U9 Pin 7 and found 13.35 vdc.
Found no shorts around the headphone jack.
Checked orientation of C32 and C33, OK.
Checked U10 pin 4 and fournd 7.94 vdc.
I reheated all solder joints on chips and jacks.
I think the problem might
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