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K2 Problem - I let some smoke out

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Mike Murray-4

K2 Problem - I let some smoke out

Recently, while reassembling my K2-100 (#2652) after installing a Clifton
Labs IF out module, I managed to pinch the 12V aux wire that connects the
100 watt module to the main board against the right side panel. After the
smoke cleared, I found a lifted trace on the amp board that feeds the 12V
to the connecting wire. The trace was still in place, but I decided to
remove it and hard wire around just to be certain it would be OK.
Everything seems to be functionally restored except receive on 80M, which
is basically dead.

Anyone have any thoughts on where to start troubleshooting?

Mike - W0AG
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Don Wilhelm-4

Re: K2 Problem - I let some smoke out

Mike,

I suspect that the 80 meter receive problem has nothing to do with the
12 volt power trace incident.

Do you have the K160RX option installed? If so, check the menu to see
if the RX ANT is ON for 80 meters. That is a per band setting.

73,
Don W3FPR

On 8/18/2013 7:31 PM, Mike Murray wrote:

> Recently, while reassembling my K2-100 (#2652) after installing a Clifton
> Labs IF out module, I managed to pinch the 12V aux wire that connects the
> 100 watt module to the main board against the right side panel. After the
> smoke cleared, I found a lifted trace on the amp board that feeds the 12V
> to the connecting wire. The trace was still in place, but I decided to
> remove it and hard wire around just to be certain it would be OK.
> Everything seems to be functionally restored except receive on 80M, which
> is basically dead.
>
> Anyone have any thoughts on where to start troubleshooting?
>

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Help: http://mailman.qth.net/mmfaq.htm
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Mike Murray-4

Re: K2 Problem - I let some smoke out

Yep, that was the problem! In my haste to test the K2 after repairs, I
disconnected all optional stuff, including the RX antenna. Naturally I
forgot all about that after a couple of days (CRS?) and thustly ceated my
own problem.

Thanks for the quick response and for all of the help you provide!

Mike - W0AG

On Sun, Aug 18, 2013 at 10:18 PM, Don Wilhelm <[hidden email]> wrote:

> Mike,
>
> I suspect that the 80 meter receive problem has nothing to do with the 12
> volt power trace incident.
>
> Do you have the K160RX option installed? If so, check the menu to see if
> the RX ANT is ON for 80 meters. That is a per band setting.
>
> 73,
> Don W3FPR
>
>
> On 8/18/2013 7:31 PM, Mike Murray wrote:
>
>> Recently, while reassembling my K2-100 (#2652) after installing a Clifton
>> Labs IF out module, I managed to pinch the 12V aux wire that connects the
>> 100 watt module to the main board against the right side panel. After the
>> smoke cleared, I found a lifted trace on the amp board that feeds the 12V
>> to the connecting wire. The trace was still in place, but I decided to
>> remove it and hard wire around just to be certain it would be OK.
>> Everything seems to be functionally restored except receive on 80M,
>> which
>> is basically dead.
>>
>> Anyone have any thoughts on where to start troubleshooting?
>>
>>
>