[Elecraft] K2 no audio output on Part I Test

[Don Wilhelm]

Mario,

Yes, U9 pin 6 can have 6.5 volts, but...
There is capacitor C29 between U9 pin 6 and the AF OUT signal (and the 
headphone jack) that should block any DC.  If you have 5 volts at the AF 
OUT signal (P3 pins 7, 8 and 10), then that is a problem.

You have something shorted to another signal or power supply rail 
somewhere. Your challenge is to find it.

73,
Don W3FPR

On 10/4/2012 8:38 PM, Mario Bouchard wrote:
> Don,
>
> CB U9 #2 and #3 have 1.4mV, #6 has 6.5V and #7 has 13.6V.
>
> Thanks,
>
>
> Mario Bouchard,
>
> Envoyé de mon iPad
> Sent from my iPad
>
> On 2012-10-04, at 20:28, Don Wilhelm <w3fpr at embarqmail.com> wrote:
>
>> U9 #2 and #3 have 1.4mV, #6 has 6.5V has 13.6V.
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