checking IF output problem from K3XVA? none detected...

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checking IF output problem from K3XVA? none detected...

Brian Pepperdine




Hi.
I installed a K3XVA board into the K3 in order to get IF output for an LP PAN and PSDR.

I was not seeing signals on PSDR, nor any input levels on the sound card inputs,  so began to question if I actually HAD output from the K3XV.

It was recommended to me that I feed the IF output into a receiver and see if I heard output at 8.215.
I do not hear anything.

I did go back to check my work and the board is inserted into the jack and the thin coax cable is going from the board  to the underside plug.

Any ideas on troubleshooting the seeming lack of output? I did install the resistor retrofit ( 13K, 1/8 watt leaded).

Thought I would ask here before I message anything to Elecraft service.

As always, but thanfully infrequently, thanks....

Brien
VE3VAW
Toronto, ON


     
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Re: checking IF output problem from K3XVA? none detected...

Don Wilhelm-4
  Brian,

Possibilities that I can think of are:
Bad cable inside the K3 (check with an ohmmeter)
Cable swapped ground and signal (examine physically or use ohmmeter)
IF output transistor bad.

The cures for any problems found can be had at [hidden email].

Check the cable you are using outside the K3 as well.

73,
Don W3FPR

On 9/27/2010 9:50 PM, Brian Pepperdine wrote:

>
>
>
> Hi.
> I installed a K3XVA board into the K3 in order to get IF output for an LP PAN and PSDR.
>
> I was not seeing signals on PSDR, nor any input levels on the sound card inputs,  so began to question if I actually HAD output from the K3XV.
>
> It was recommended to me that I feed the IF output into a receiver and see if I heard output at 8.215.
> I do not hear anything.
>
> I did go back to check my work and the board is inserted into the jack and the thin coax cable is going from the board  to the underside plug.
>
> Any ideas on troubleshooting the seeming lack of output? I did install the resistor retrofit ( 13K, 1/8 watt leaded).
>
> Thought I would ask here before I message anything to Elecraft service.
>
> As always, but thanfully infrequently, thanks....
>
> Brien
> VE3VAW
> Toronto, ON
>
>
>    
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html